
                                      UNITED STATES
                           SECURITIES AND EXCHANGE COMMISSION
                                 Washington, D.C.  20549


                                        FORM 8-K


                     Current Report Pursuant To Section 13 or 15(d) of
                            the Securities Exchange Act of 1934

           Date of Report (Date of earliest event reported):  December 27, 2004
                           (Date of earliest event reported)

                   Impac CMB Trust Series 2004-1 (as Issuer under the
                    Indenture dated as January 29, 2004, providing
                   for the issuance Trust Certificates, Series 2004-1)
                  (Exact name of Registrant as specified in its Charter)


                                       California
                    (State or Other Jurisdiction of Incorporation)

               333-109503-03                          33-0705301
          (Commission File Number)        (I.R.S. Employer Identification No.)


          1401 DOVE STREET
          NEWPORT BEACH, CALIFORNIA                    92660
          (Address of principal executive offices)     (Zip Code)


          Registrant's Telephone Number, Including Area Code:  (949) 475-3600


         (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any
of the following provisions (see General Instruction A.2. below):

[  ] Written communications pursuant to Rule 425 under the Securities Act
(17 CFR 230.425)

[  ] Soliciting material pursuant to Rule 14a-12(b) under the Exchange Act
(17 CFR 240.14a-12(b))

[  ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
Exchange Act (17 CFR 240.14d-2(b))

[  ] Pre-commencement communications pursuant to Rule 13e-4(c) under the
Exchange Act (17 CFR 240.13e-4(c))


     Item 8.01  Other Events

     Attached hereto is a copy of the Monthly Remittance Statements to the
     Certificateholders which was derived from the monthly information
     submitted by the Master Servicer of the Trust to the Trustee.


     Item 9.01 Financial Statements and Exhibits

     (c) Exhibits:

     Exhibit No. Description

     99.1 Monthly Remittance Statement to the Certificateholders dated as of
     December 27, 2004.

                                    Signatures

               Pursuant to the requirements of the Securities Exchange Act of
          1934, the Registrant has duly caused this report to be signed on its
          behalf by the undersigned, hereunto duly authorized.


                                  Deutsche Bank National Trust Company,
                                  in its capacity as Trustee under the
                                  Indenture Agreement on behalf of Impac
                                  Assets Corporation Inc., Registrant


          Date:  Dec 27, 2004               By:  /s/  Katherine M. Wannenmacher
                                            Katherine M. Wannenmacher
                                            Vice President


                                   EXHIBIT INDEX

          DOCUMENT

          99.1 Monthly Remittance Statement to the Certificateholders
          dated as of December 27, 2004.


	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates


	December 27, 2004 Distribution


	Contents



			TABLE OF CONTENTS

								Page

			1.	Contents				1
			2.	Certificate Payment Report				2
			3.	Collection Account Report				4
			4.	Credit Enhancement Report				7
			5.	Collateral Report				8
			6.	Delinquency Report				11
			7.	REO Report				12
			8.	Prepayment Report				13
			9.	Prepayment Detail Report				16
			10.	Realized Loss Report				19
			11.	Realized Loss Detail Report				22
			12.	Triggers, Adj. Rate Cert. and Miscellaneous Report				23
			13.	Other Related Information				24




				Total Number of Pages				24



			CONTACTS

				Administrator:
				Direct Phone Number:
				Address: Deutsche Bank
				1761 E. St. Andrew Place, Santa Ana, CA 92705

				Web Site: https://www.tss.db.com/invr
				Factor Information: (800) 735-7777
				Main Phone Number: (714) 247-6000



ISSUANCE INFORMATION

	Seller:		IMPAC Mortgage Holdings Inc.					Cut-Off Date: January 1, 2004
	Certificate Insurer(s):							Closing Date: January 29, 2004
								First Payment Date: February 25, 2004
	Servicer(s):		Impac Funding Corp. Master Servicer
			Countrywide Home Loans Serv Sub-Servicer
			Wells Fargo Sub-Servicer
								Distribution Date: December 27, 2004
	Underwriter(s):		Countrywide Securities Lead Underwriter					Record Date: December 24, 2004
			Merrill Lynch & Co. Co-Lead Underwriter					November 30, 2004






						Page 1 of 24					© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Certificate Payment Report for December 27, 2004 Distribution


	Distribution in Dollars - Current Period
					Prior						Current
	Class	Original			Principal			Total	Realized	Deferred	Principal
Class	Type	Face Value			Balance	Interest	Principal	Distribution	Losses	Interest	Balance
					(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)

A-1	STEP, FLT,	869,000,000.00			681,561,668.79	1,473,119.82	27,259,414.13	28,732,533.95	-	-	654,302,254.66
A-2	STEP, FLT,	21,000,000.00			16,470,420.07	37,300.93	658,743.03	696,043.96	-	-	15,811,677.04
M-1	MEZ, STEP,	48,500,000.00			38,038,827.31	89,422.94	1,521,382.72	1,610,805.66	-	-	36,517,444.59
M-2	MEZ, STEP,	23,500,000.00			18,431,184.38	46,026.76	737,164.82	783,191.58	-	-	17,694,019.56
M-3	MEZ, STEP,	21,500,000.00			16,862,572.93	46,175.35	674,427.39	720,602.74	-	-	16,188,145.54
M-4	MEZ, STEP,	16,500,000.00			12,941,044.34	37,665.63	517,583.81	555,249.44	-	-	12,423,460.53
Cert	R	-			-	1,297,769.47	-	1,297,769.47	-	-	-


Total		1,000,000,000.00			784,305,717.82	3,027,480.90	31,368,715.91	34,396,196.81	-	-	752,937,001.92


	Interest Accrual Detail				Current Period Factor Information per $1,000 of Original Face
						Orig. Principal	Prior				Current
	Period	Period				(with Notional)	Principal			Total	Principal
Class	Starting	Ending		Method	Cusip	Balance	Balance	Interest	Principal	Distribution	Balance
							(1)	(2)	(3)	(4)=(2)+(3)	(5)

A-1	11/26/04	12/26/04		A-Act/360	45254NGP6	869,000,000.00	784.305718	1.695190	31.368716	33.063906	752.937002
A-2	11/26/04	12/26/04		A-Act/360	45254NGQ4	21,000,000.00	784.305718	1.776235	31.368716	33.144951	752.937002
M-1	11/26/04	12/26/04		A-Act/360	45254NGR2	48,500,000.00	784.305718	1.843772	31.368716	33.212488	752.937002
M-2	11/26/04	12/26/04		A-Act/360	45254NGS0	23,500,000.00	784.305718	1.958586	31.368716	33.327301	752.937003
M-3	11/26/04	12/26/04		A-Act/360	45254NGT8	21,500,000.00	784.305718	2.147691	31.368716	33.516407	752.937002
M-4	11/26/04	12/26/04		A-Act/360	45254NGU5	16,500,000.00	784.305718	2.282765	31.368716	33.651481	752.937002
Cert	11/26/04	12/26/04		-		-	-	-	-	-	-


							Page 2 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Certificate Payment Report for December 27, 2004 Distribution


	Distribution in Dollars - to Date
											Current
	Original				Unscheduled	Scheduled	Total	Total	Realized	Deferred	Principal
Class	Face Value		Interest		Principal	Principal	Principal	Distribution	Losses	Interest	Balance
	(1)		(2)		(3)	(4)	(5)=(3)+(4)	(6)=(2)+(5)	(7)	(8)	(9)=(1)-(5)-(7)+(8)

A-1	869,000,000.00		12,761,497.12		210,360,673.70	4,337,071.64	214,697,745.34	227,459,242.46	-	-	654,302,254.66
A-2	21,000,000.00		329,626.73		5,083,514.55	104,808.41	5,188,322.96	5,517,949.69	-	-	15,811,677.04
M-1	48,500,000.00		802,151.88		11,740,497.90	242,057.51	11,982,555.41	12,784,707.29	-	-	36,517,444.59
M-2	23,500,000.00		422,337.52		5,688,694.86	117,285.60	5,805,980.46	6,228,317.98	-	-	17,694,019.56
M-3	21,500,000.00		437,124.62		5,204,550.62	107,303.84	5,311,854.46	5,748,979.08	-	-	16,188,145.54
M-4	16,500,000.00		363,276.95		3,994,190.00	82,349.46	4,076,539.47	4,439,816.42	-	-	12,423,460.53
Cert	-		18,269,499.22		-	-	-	18,269,499.22	-	-	-


Total	1,000,000,000.00		33,385,514.04		242,072,121.63	4,990,876.46	247,062,998.09	280,448,512.13	-	-	752,937,001.92


	Interest Detail
	Pass-	Prior Principal				Non-	Prior	Unscheduled		Paid or	Current
	Through	(with Notional)			Accrued	Supported	Unpaid	Interest	Optimal	Deferred	Unpaid
Class	Rate	Balance			Interest	Interest SF	Interest	Adjustments	Interest	Interest	Interest
					(1)	(2)	(3)	(4)	(5)=(1)-(2)+(3)+(4)	(6)	(7)=(5)-(6)

A-1	2.51000%	681,561,668.79			1,473,119.82	-	-	-	1,473,119.82	1,473,119.82	-
A-2	2.63000%	16,470,420.07			37,300.93	-	-	-	37,300.93	37,300.93	-
M-1	2.73000%	38,038,827.31			89,422.94	-	-	-	89,422.94	89,422.94	-
M-2	2.90000%	18,431,184.38			46,026.76	-	-	-	46,026.76	46,026.76	-
M-3	3.18000%	16,862,572.93			46,175.35	-	-	-	46,175.35	46,175.35	-
M-4	3.38000%	12,941,044.34			37,665.63	-	-	-	37,665.63	37,665.63	-
Cert		-			-	-	-	-	1,297,769.47	1,297,769.47	-


Total		784,305,717.82			1,729,711.43	-	-	-	3,027,480.90	3,027,480.90	-


							Page 3 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Collection Account Report for December 27, 2004 Distribution


	Collection Account Report


SUMMARY								TOTAL

	Principal Collections							31,368,715.91
	Principal Withdrawals							0.00
	Principal Other Accounts							0.00
	TOTAL PRINCIPAL							31,368,715.91

	Interest Collections							3,621,127.92
	Interest Withdrawals							0.00
	Interest Other Accounts - Cap Contract Amt (Paid) / Received							(353,281.38)
	Interest Fees							(240,365.64)
	Interest Earnings							0.00
	TOTAL INTEREST							3,027,480.90

	TOTAL AVAILABLE FUNDS TO BONDHOLDERS							34,396,196.81


PRINCIPAL - COLLECTIONS								TOTAL

	Scheduled Principal							391,801.54
	Curtailments							49,747.45
	Prepayments in Full							30,927,166.92
	Repurchases/Substitutions							0.00
	Liquidations							0.00
	Insurance Principal							0.00
	Other Additional Principal							0.00
	Delinquent Principal							(117,165.41)
	Realized Losses							0.00
	Substitution Adjustments- Principal							0.00
	Termination Price Amounts- Principal							0.00
	Additional Principal Amts							0.00
	Principal Advanced							117,165.41

	TOTAL PRINCIPAL							31,368,715.91


				Page 4 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Collection Account Report for December 27, 2004 Distribution


	Collection Account Report


PRINCIPAL - WITHDRAWALS								TOTAL
SPACE INTENTIONALLY LEFT BLANK


PRINCIPAL - OTHER ACCOUNTS								TOTAL
SPACE INTENTIONALLY LEFT BLANK


INTEREST - COLLECTIONS								TOTAL

	Scheduled Interest							3,688,979.21
	Repurchases/Substitutions							0.00
	Liquidations							0.00
	Insurance Interest							0.00
	Other Additional Interest							0.00
	Prepayment Interest Shortfalls							(77,073.24)
	Relief Act Interest Shortfalls							0.00
	Delinquent Interest							(959,342.94)
	Interest Realized Losses							0.00
	Compensating Interest							77,073.24
	Substitution Adjustments- Interest							0.00
	Termination Price Amounts- Interest							0.00
	Additional Interest Amts							0.00
	Interest Prepayment Premiums							0.00
	Interest Advanced							891,491.65


	TOTAL INTEREST							3,621,127.92


				Page 5 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Collection Account Report for December 27, 2004 Distribution


	Collection Account Report


INTEREST - WITHDRAWALS								TOTAL

	Prev. Unreimbursed PMI Premiums							0.00
	Prev. Unreimbursed Spec Haz Premiums							0.00
	Prev. Unreimbursed Liq. Expenses							0.00
	Prev. Unreimbursed Master/Sub-Servicing Fees							0.00
	Amt Rvcd Not Due Bondholder /Deposits in Error							0.00
	Prev. Unreimb. P&I Advances/Non Recov Advances							0.00
	Prev. Unreimbursed Servicing Advances							0.00
	Clear and Terminate Collection Account							0.00

	TOTAL INTEREST WITHDRAWALS							0.00

INTEREST - OTHER ACCOUNTS								TOTAL
SPACE INTENTIONALLY LEFT BLANK


INTEREST - FEES								TOTAL

	Owner Trustee Fee							1,118.18
	Indenture Trustee Fee							1,710.16
	Radian PMI Insurance Premiums							37,830.54
	Current Servicing Fees							199,706.76
	TOTAL INTEREST FEES							240,365.64


				Page 6 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Credit Enhancement Report for December 27, 2004 Distribution


	Credit Enhancement Report


ACCOUNTS								TOTAL
SPACE INTENTIONALLY LEFT BLANK


INSURANCE								TOTAL
SPACE INTENTIONALLY LEFT BLANK


STRUCTURAL FEATURES								TOTAL

	Current Period Required Overcollateralization Amt							5,000,000.74
	Current Period Overcollateralization Amt							5,000,000.73
	Current Period Net Monthly Excess Cashflow							1,297,769.47
	Current Period Overcollateralization Release							0.00

	Available Funds Rate							4.4827%


				Page 7 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Collateral Report for December 27, 2004 Distribution


	Collateral Report


COLLATERAL								TOTAL
	Loan Count:
	*Original*							3940
	Prior							3,183
	Prefunding							-
	Scheduled Paid Offs							-
	Full Voluntary Prepayments							(119)
	Repurchases							-
	Liquidations							-
	Current							3,064

	*Principal Balance:*
	Original							1,000,000,049.26
	Prior							789,305,718.56
	Prefunding							-
	Scheduled Principal							(391,801.54)
	Partial and Full Voluntary Prepayments							(30,976,914.37)
	Repurchases							-
	Liquidations							-
	Current							757,937,002.65

PREFUNDING								TOTAL
SPACE INTENTIONALLY LEFT BLANK




Current Prin Balance by Groups (in millions of dollars)					Total Current Principal Balance (in millions of dollars)


				Page 8 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Collateral Report for December 27, 2004 Distribution


	Collateral Report


CHARACTERISTICS								TOTAL

	Weighted Average Coupon Original							5.749443%
	Weighted Average Coupon Prior							5.594783%
	Weighted Average Coupon Current							5.608442%
	Weighted Average Months to Maturity Original							358
	Weighted Average Months to Maturity Prior							349
	Weighted Average Months to Maturity Current							348
	Weighted Avg Remaining Amortization Term Original							358
	Weighted Avg Remaining Amortization Term Prior							349
	Weighted Avg Remaining Amortization Term Current							348
	Weighted Average Seasoning Original							2.15
	Weighted Average Seasoning Prior							11.08
	Weighted Average Seasoning Current							12.07

Note: Original information refers to deal issue.




WAC by Groups					Total WAC


WARAT by Groups					Total WARAT


Note: Dates correspond to distribution dates.
				Page 9 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Collateral Report for December 27, 2004 Distribution


	Collateral Report


ARM CHARACTERISTICS								TOTAL

	Weighted Average Margin Original							3.472%
	Weighted Average Margin Prior							3.467%
	Weighted Average Margin Current							3.460%
	Weighted Average Max Rate Original							11.709%
	Weighted Average Max Rate Prior							11.663%
	Weighted Average Max Rate Current							11.659%
	Weighted Average Min Rate Original							3.646%
	Weighted Average Min Rate Prior							3.628%
	Weighted Average Min Rate Current							3.619%
	Weighted Average Cap Up Original							1.066%
	Weighted Average Cap Up Prior							1.066%
	Weighted Average Cap Up Current							1.066%
	Weighted Average Cap Down Original							1.066%
	Weighted Average Cap Down Prior							1.066%
	Weighted Average Cap Down Current							1.066%

Note: Original information refers to deal issue.

SERVICING FEES / ADVANCES								TOTAL

	Current Servicing Fees							199,706.76
	Delinquent Servicing Fees							67,851.29
	TOTAL SERVICING FEES							267,558.05

	Total Servicing Fees							267,558.05
	Compensating Interest							77,073.24
	Delinquent Servicing Fees							(67,851.29)
	COLLECTED SERVICING FEES							276,780.00

	Current PPIS							77,073.24
	Current Net PPIS							0.00

	Total Advanced Principal For Current Payment Date							117,165.41
	Total Advanced Interest For Current Payment Date							891,491.65
	TOTAL ADVANCES FOR CURRENT PERIOD							1,008,657.06


ADDITIONAL COLLATERAL INFORMATION								TOTAL
SPACE INTENTIONALLY LEFT BLANK


				Page 10 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Delinquency Report for December 27, 2004 Distribution


	Delinquency Report - Total


				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance			3,521,645.45	2,785,869.21	1,255,425.00	7,562,939.66
		% Balance			0.46%	0.37%	0.17%	1.00%
		# Loans			15	12	7	34
		% # Loans			0.49%	0.39%	0.23%	1.11%
FORECLOSURE		Balance		-	-	-	3,510,873.08	3,510,873.08
		% Balance		0.00%	0.00%	0.00%	0.46%	0.46%
		# Loans		-	-	-	15	15
		% # Loans		0.00%	0.00%	0.00%	0.49%	0.49%
BANKRUPTCY		Balance		506,918.42	-	-	1,367,598.08	1,874,516.50
		% Balance		0.07%	0.00%	0.00%	0.18%	0.25%
		# Loans		3	-	-	4	7
		% # Loans		0.10%	0.00%	0.00%	0.13%	0.23%
REO		Balance		-	-	-	241,683.04	241,683.04
		% Balance		0.00%	0.00%	0.00%	0.03%	0.03%
		# Loans		-	-	-	2	2
		% # Loans		0.00%	0.00%	0.00%	0.07%	0.07%

TOTAL		Balance		506,918.42	3,521,645.45	2,785,869.21	6,375,579.20	13,190,012.28
		% Balance		0.07%	0.46%	0.37%	0.84%	1.74%
		# Loans		3	15	12	28	58
		% # Loans		0.10%	0.49%	0.39%	0.91%	1.89%
Note: <1 Payment = 0-30days, 1 Payment = 31-60days, 2 Payments = 61-90days, 3+ Payments = 91+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent


Total Foreclosure					Total Bankruptcy and REO


Note: Dates correspond to distribution dates.
				Page 11 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	REO Report for December 27, 2004 Distribution


	REO Report - Mortgage Loans that Become REO During Current Distribution


SUMMARY				LOAN GROUP

Total Loan Count = 0				Loan Group 1 = Adjustable; REO Book Value = Not Available
Total Original Principal Balance = 000.00
Total Current Balance = 000.00
REO Book Value = Not Available

REO Book Value reported corresponds to total REO loans, including loans that become REO during current distribution.

Loan Number		Original	Stated		Current	State &
&		Principal	Principal	Paid to	Note	LTV at	Original	Origination
Loan Group		Balance	Balance	Date	Rate	Origination	Term	Date
SPACE INTENTIONALLY LEFT BLANK


				Page 12 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Prepayment Report for December 27, 2004 Distribution


	Prepayment Report - Voluntary Prepayments


VOLUNTARY PREPAYMENTS								TOTAL

	*Current*
	Number of Paid in Full Loans							119
	Number of Repurchased Loans							-
	Total Number of Loans Prepaid in Full							119

	Paid in Full Balance							30,927,166.92
	Repurchased Loans Balance							-
	Curtailments Amount							49,747.45
	Total Prepayment Amount							30,976,914.37

	*Cumulative*
	Number of Paid in Full Loans							869
	Number of Repurchased Loans							6
	Total Number of Loans Prepaid in Full							875

	Paid in Full Balance							233,690,365.64
	Repurchased Loans Balance							1,728,756.38
	Curtailments Amount							1,177,944.62
	Total Prepayment Amount							236,597,066.64


	Current Prin Balance of Repurchases Per Sec 3.18							0.00
	Cumulative Prin Balance of Repurchases Per Sec 3.18							0.00


Total Prepayments by Groups (in thousands of dollars)					Total Prepayments (in thousands of dollars)


				Page 13 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Prepayment Report for December 27, 2004 Distribution


	Prepayment Report - Voluntary Prepayments


VOLUNTARY PREPAYMENT RATES								TOTAL

	SMM							3.93%
	3 Months Avg SMM							3.55%
	12 Months Avg SMM
	Avg SMM Since Cut-off							2.43%

	CPR							38.16%
	3 Months Avg CPR							35.18%
	12 Months Avg CPR
	Avg CPR Since Cut-off							25.60%

	PSA							1580.54%
	3 Months Avg PSA Approximation							1587.50%
	12 Months Avg PSA Approximation
	Avg PSA Since Cut-off Approximation							1802.88%







CPR by Groups					Total CPR


PSA by Groups					Total PSA


				Page 14 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Prepayment Report for December 27, 2004 Distribution


	Prepayment Report - Voluntary Prepayments




CPR Avg since Cut-Off by Groups					Total CPR Avg since Cut-Off


PSA Avg since Cut-Off by Groups					Total PSA Avg since Cut-Off


PREPAYMENT CALCULATION METHODOLOGY
Single Monthly Mortality (SMM): (Voluntary partial and full prepayments + Repurchases)/(Beg Principal Balance - Sched Principal)
Conditional Prepayment Rate (CPR): 1-((1-SMM)^12)
PSA Standard Prepayment Model: CPR/(0.02*min(30,WAS))
Average SMM over period between nth month and mth month (AvgSMMn,m): [(1-SMMn) * (1-SMMn+1) .......(1-SMMm)]^(1/months in period n,m)
Average CPR over period between the nth month and mth month (AvgCPRn,m): 1-((1-AvgSMMn,m)^12)
Average PSA Approximation over period between the nth month and mth month: AvgCPRn,m/(0.002*Avg WASn,m))
Average WASn,m: (min(30,WASn)+min(30,WASn+1)+.......+min(30,WASm)/(number of months in the period n,m)
Weighted Average Seasoning (WAS)

Note: Prepayment rates are calculated since deal issue date and include partial and full voluntary prepayments and repurchases.
Dates correspond to distribution dates.

				Page 15 of 24				© COPYRIGHT 2004 Deutsche Bank


	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Prepayment Detail Report for December 27, 2004 Distribution


	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution


SUMMARY						LOAN GROUP

Total Loan Count = 119						Loan Group 1 = Adjustable
Total Original Principal Balance = 31,294,376.00
Total Prepayment Amount = 30,927,166.92


Loan Number			Original			Current	State &	Type Prepayment
&		Loan	Principal	Prepayment	Prepayment	Note	LTV at	&	Origination
Loan Group		Status	Balance	Amount	Date	Rate	Origination	Original Term	Date

1100382618 1			156,100.00	156,100.00	Nov-19-04	4.500%	CA - 70.00%	Paid Off - 360	Dec-15-03
1103056957 1			292,500.00	286,554.42	Nov-23-04	4.750%	MI - 90.00%	Paid Off - 360	Dec-31-03
1103071993 1			373,600.00	368,039.41	Nov-26-04	4.375%	CA - 80.00%	Paid Off - 360	Dec-23-03
1103077953 1			492,150.00	492,150.00	Nov-23-04	5.625%	FL - 85.00%	Paid Off - 360	Dec-30-03
1103079554 1			399,500.00	399,498.00	Nov-10-04	5.000%	CA - 72.64%	Paid Off - 360	Oct-15-03
1103080930 1			218,500.00	216,201.96	Nov-01-04	7.250%	MD - 95.00%	Paid Off - 360	Jan-09-04
1103081026 1			180,177.00	179,901.05	Nov-12-04	5.500%	CA - 80.00%	Paid Off - 360	Dec-22-03
1103081605 1			336,000.00	331,153.44	Nov-05-04	5.125%	CA - 80.00%	Paid Off - 360	Dec-31-03
1103082554 1			525,000.00	525,000.00	Nov-08-04	5.000%	CA - 88.24%	Paid Off - 360	Dec-09-03
1103084962 1			395,800.00	390,732.24	Nov-16-04	4.875%	CT - 94.98%	Paid Off - 360	Dec-31-03
1103086186 1			363,100.00	363,100.00	Nov-03-04	5.875%	CA - 95.00%	Paid Off - 360	Jan-08-04
1103086372 1			339,850.00	335,668.78	Nov-02-04	5.990%	MD - 89.90%	Paid Off - 360	Jan-13-04
1103087345 1			518,500.00	513,835.96	Nov-05-04	7.625%	CA - 85.00%	Paid Off - 360	Dec-05-03
1103088076 1			170,593.00	168,075.05	Nov-04-04	4.500%	MD - 70.00%	Paid Off - 360	Dec-16-03
1103089351 1			280,000.00	276,251.11	Nov-23-04	5.250%	CA - 82.36%	Paid Off - 360	Dec-24-03
1103091180 1			308,000.00	304,376.79	Nov-16-04	5.750%	CA - 80.00%	Paid Off - 360	Jan-07-04
1103091683 1			212,000.00	210,396.83	Nov-11-04	8.500%	NY - 80.00%	Paid Off - 360	Jan-06-04
1103091890 1			343,900.00	339,564.87	Nov-30-04	5.375%	CA - 80.17%	Paid Off - 360	Jan-13-04
1103091896 1			180,000.00	177,575.24	Nov-24-04	5.500%	CA - 80.00%	Paid Off - 360	Dec-23-03
1103092203 1			450,400.00	444,718.50	Nov-26-04	5.500%	CA - 79.99%	Paid Off - 360	Dec-16-03
1103092405 1			314,100.00	310,901.69	Nov-19-04	6.625%	CA - 90.00%	Paid Off - 360	Dec-31-03
1103092911 1			310,500.00	307,546.99	Nov-09-04	6.875%	CA - 90.00%	Paid Off - 360	Dec-31-03
1103093552 1			267,750.00	267,750.00	Nov-05-04	5.125%	CA - 85.00%	Paid Off - 360	Dec-15-03
1103094131 1			293,960.00	290,501.91	Nov-16-04	5.750%	VA - 80.00%	Paid Off - 360	Jan-12-04
1103094135 1			136,000.00	134,082.30	Nov-26-04	5.250%	NV - 80.00%	Paid Off - 360	Dec-30-03
1103094148 1			180,000.00	177,939.86	Nov-30-04	5.375%	CA - 90.00%	Paid Off - 360	Jan-07-04
1103094222 1			314,400.00	309,958.27	Nov-04-04	5.000%	CA - 80.00%	Paid Off - 360	Dec-16-03
1103094932 1			344,000.00	339,762.03	Nov-16-04	5.500%	CA - 80.00%	Paid Off - 360	Dec-23-03
1103095009 1			165,000.00	163,720.96	Nov-02-04	8.375%	CA - 63.47%	Paid Off - 360	Dec-24-03
1103095110 1			104,800.00	102,830.66	Nov-03-04	4.500%	CA - 80.00%	Paid Off - 360	Dec-22-03
1103095142 1			315,000.00	315,000.00	Nov-09-04	5.875%	OR - 76.83%	Paid Off - 360	Jan-15-04
1103096244 1			90,000.00	90,000.00	Nov-17-04	5.750%	NV - 90.00%	Paid Off - 360	Jan-12-04
1103097074 1			300,000.00	300,000.00	Nov-24-04	5.500%	CA - 80.00%	Paid Off - 360	Dec-31-03
1103097160 1			264,000.00	260,262.61	Nov-04-04	5.375%	CA - 76.53%	Paid Off - 360	Dec-24-03
1103097432 1			226,000.00	226,000.00	Nov-01-04	4.375%	CA - 79.86%	Paid Off - 360	Dec-31-03
1103098397 1			300,000.00	300,000.00	Nov-29-04	5.125%	CA - 80.00%	Paid Off - 360	Dec-18-03
1103098605 1			251,000.00	250,868.60	Nov-22-04	5.375%	CA - 72.97%	Paid Off - 360	Dec-23-03
1103098701 1			228,800.00	228,800.00	Nov-01-04	5.125%	CA - 80.00%	Paid Off - 360	Dec-24-03
1103099097 1			228,000.00	228,000.00	Nov-19-04	6.250%	CA - 80.00%	Paid Off - 360	Dec-12-03
1103099616 1			122,400.00	121,088.67	Nov-02-04	6.250%	CA - 69.99%	Paid Off - 360	Dec-24-03
1103101361 1			248,000.00	248,000.00	Nov-04-04	4.500%	CA - 80.00%	Paid Off - 360	Dec-31-03
1103102018 1			232,000.00	228,882.70	Nov-24-04	4.500%	CA - 80.00%	Paid Off - 360	Dec-24-03
1103102050 1			161,200.00	159,010.20	Nov-19-04	5.250%	CA - 80.00%	Paid Off - 360	Jan-12-04
1103102219 1			370,000.00	365,355.99	Nov-11-04	4.875%	CA - 86.05%	Paid Off - 360	Dec-19-03

					Page 16 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Prepayment Detail Report for December 27, 2004 Distribution


	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution



Loan Number			Original			Current	State &
&		Loan	Principal	Prepayment	Prepayment	Note	LTV at	Original	Origination
Loan Group		Status	Balance	Amount	Date	Rate	Origination	Term	Date

1103102330 1			134,950.00	132,737.89	Nov-17-04	6.500%	PA - 94.97%	Paid Off - 360	Nov-21-03
1103102357 1			271,700.00	265,381.15	Nov-11-04	7.125%	NY - 95.00%	Paid Off - 360	Nov-19-03
1103103237 1			176,800.00	176,614.52	Nov-01-04	4.750%	CA - 80.00%	Paid Off - 360	Dec-15-03
1103103290 1			216,000.00	216,000.00	Nov-11-04	5.500%	CA - 80.00%	Paid Off - 360	Jan-09-04
1103103559 1			492,000.00	485,654.67	Nov-26-04	5.250%	HI - 80.00%	Paid Off - 360	Dec-22-03
1103103629 1			328,000.00	328,000.00	Nov-24-04	5.000%	CA - 80.00%	Paid Off - 360	Dec-31-03
1103103667 1			400,000.00	399,799.18	Nov-18-04	5.125%	CA - 79.82%	Paid Off - 360	Dec-12-03
1103104032 1			133,000.00	131,208.01	Nov-29-04	5.000%	CA - 70.00%	Paid Off - 360	Dec-18-03
1103104269 1			268,000.00	264,227.98	Nov-18-04	4.875%	CA - 80.00%	Paid Off - 360	Jan-14-04
1103104336 1			437,600.00	437,600.00	Nov-08-04	4.125%	CA - 80.00%	Paid Off - 360	Jan-07-04
1103104536 1			247,200.00	243,794.34	Nov-18-04	5.625%	CA - 80.00%	Paid Off - 360	Dec-16-03
1103104759 1			303,200.00	299,633.23	Nov-24-04	5.750%	CA - 80.00%	Paid Off - 360	Dec-24-03
1103104778 1			393,300.00	393,300.00	Nov-19-04	4.875%	FL - 90.00%	Paid Off - 360	Dec-15-03
1103104823 1			269,600.00	269,600.00	Nov-03-04	6.250%	CA - 80.00%	Paid Off - 360	Jan-07-04
1103104901 1			296,000.00	296,000.00	Nov-23-04	5.000%	CA - 80.00%	Paid Off - 360	Jan-09-04
1103105693 1			180,500.00	180,500.00	Nov-05-04	6.000%	MN - 95.00%	Paid Off - 360	Jan-12-04
1103105821 1			491,250.00	491,250.00	Nov-17-04	6.500%	CA - 75.00%	Paid Off - 360	Jan-07-04
1103105860 1			224,050.00	224,050.00	Nov-19-04	5.625%	CA - 79.99%	Paid Off - 360	Jan-08-04
1103105866 1			419,547.00	418,554.24	Nov-30-04	5.375%	CA - 80.76%	Paid Off - 360	Dec-31-03
1103106565 1			168,800.00	166,720.38	Nov-16-04	5.500%	CA - 80.00%	Paid Off - 360	Jan-09-04
1103106717 1			239,400.00	239,400.00	Nov-24-04	7.375%	CA - 95.00%	Paid Off - 360	Dec-05-03
1103107145 1			335,200.00	331,454.43	Nov-23-04	5.500%	CA - 80.00%	Paid Off - 360	Jan-15-04
1103107769 1			513,000.00	507,532.68	Nov-19-04	6.750%	CA - 90.00%	Paid Off - 360	Dec-18-03
1103107797 1			153,000.00	151,466.03	Nov-24-04	7.250%	FL - 90.00%	Paid Off - 360	Dec-18-03
1103107810 1			222,300.00	219,726.03	Nov-18-04	6.750%	CA - 94.98%	Paid Off - 360	Dec-18-03
1103107852 1			375,250.00	369,738.66	Nov-01-04	6.950%	CA - 95.00%	Paid Off - 360	Dec-18-03
1103107876 1			223,387.00	220,707.09	Nov-16-04	6.125%	CA - 95.00%	Paid Off - 360	Dec-18-03
1103108082 1			111,441.00	109,788.03	Nov-30-04	4.750%	NM - 70.00%	Paid Off - 360	Jan-14-04
1103108097 1			181,600.00	181,599.74	Nov-16-04	5.875%	CA - 80.00%	Paid Off - 360	Dec-31-03
1103108424 1			191,200.00	188,542.21	Nov-30-04	4.375%	CA - 80.00%	Paid Off - 360	Dec-24-03
1103108728 1			104,000.00	102,937.34	Nov-02-04	6.500%	CA - 80.00%	Paid Off - 360	Jan-08-04
1103109361 1			110,000.00	108,921.75	Nov-16-04	6.500%	FL - 78.58%	Paid Off - 360	Jan-13-04
1103109815 1			260,160.00	260,160.00	Nov-18-04	5.375%	FL - 100.00%	Paid Off - 360	Dec-09-03
1103109844 1			308,000.00	304,863.90	Nov-18-04	6.000%	CA - 80.00%	Paid Off - 360	Jan-08-04
1103109854 1			156,500.00	154,029.08	Nov-30-04	5.500%	UT - 85.99%	Paid Off - 360	Jan-13-04
1103110284 1			147,250.00	147,250.00	Nov-26-04	7.000%	CA - 95.00%	Paid Off - 360	Dec-23-03
1103110596 1			225,600.00	222,960.75	Nov-10-04	5.250%	CA - 80.00%	Paid Off - 360	Dec-24-03
1103113977 1			194,000.00	193,775.11	Nov-30-04	5.875%	CA - 80.00%	Paid Off - 360	Jan-13-04
1103114152 1			142,800.00	141,417.86	Nov-30-04	7.250%	MD - 70.00%	Paid Off - 360	Dec-19-03
1103114205 1			242,250.00	238,911.11	Nov-22-04	5.375%	MD - 95.00%	Paid Off - 360	Jan-13-04
1103114234 1			230,350.00	227,520.13	Nov-09-04	6.000%	VA - 94.99%	Paid Off - 360	Dec-19-03
1103114379 1			116,000.00	116,000.00	Nov-16-04	6.250%	CA - 79.46%	Paid Off - 360	Jan-14-04
1103114678 1			365,350.00	362,561.02	Nov-17-04	7.500%	CA - 88.25%	Paid Off - 360	Jan-15-04
1103115215 1			166,500.00	166,500.00	Nov-26-04	6.375%	FL - 90.00%	Paid Off - 360	Jan-16-04
1103115545 1			800,000.00	656,060.00	Nov-19-04	5.500%	CA - 40.00%	Paid Off - 360	Dec-05-03
1103115993 1			588,000.00	588,000.00	Nov-18-04	5.500%	CA - 80.00%	Paid Off - 360	Dec-16-03
1103117567 1			279,000.00	276,282.05	Nov-02-04	6.750%	CA - 90.00%	Paid Off - 360	Dec-18-03
1103117655 1			105,480.00	104,258.70	Nov-26-04	5.500%	NV - 80.00%	Paid Off - 360	Jan-05-04
1103118303 1			305,750.00	305,749.99	Nov-26-04	5.125%	CA - 79.42%	Paid Off - 360	Jan-09-04
1103120129 1			248,000.00	245,414.05	Nov-10-04	5.875%	DC - 80.00%	Paid Off - 360	Jan-02-04
1103121309 1			116,500.00	114,237.01	Nov-24-04	5.500%	TN - 100.00%	Paid Off - 360	Jan-15-04
1103121325 1			199,500.00	197,322.49	Nov-16-04	6.625%	MD - 95.00%	Paid Off - 360	Jan-15-04

					Page 17 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Prepayment Detail Report for December 27, 2004 Distribution


	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution



Loan Number			Original			Current	State &
&		Loan	Principal	Prepayment	Prepayment	Note	LTV at	Original	Origination
Loan Group		Status	Balance	Amount	Date	Rate	Origination	Term	Date

1103121398 1			265,000.00	265,000.00	Nov-30-04	4.250%	VA - 100.00%	Paid Off - 360	Jan-15-04
1103121403 1			140,000.00	140,000.00	Nov-23-04	5.500%	FL - 78.65%	Paid Off - 360	Jan-15-04
1103123028 1			204,900.00	202,704.89	Nov-08-04	6.250%	PA - 95.00%	Paid Off - 360	Jan-16-04
1103123090 1			96,400.00	95,607.70	Nov-05-04	7.625%	FL - 80.00%	Paid Off - 360	Jan-15-04
1103123907 1			220,000.00	217,953.49	Nov-03-04	6.990%	CA - 80.00%	Paid Off - 360	Dec-30-03
1103123920 1			157,000.00	155,233.88	Nov-12-04	5.990%	CA - 89.71%	Paid Off - 360	Dec-30-03
1103123937 1			400,000.00	395,706.56	Nov-19-04	6.240%	AZ - 88.49%	Paid Off - 360	Dec-30-03
1103123966 1			239,960.00	237,330.49	Nov-10-04	6.130%	CA - 80.00%	Paid Off - 360	Dec-30-03
1103123967 1			322,400.00	319,186.32	Nov-16-04	6.630%	CA - 80.00%	Paid Off - 360	Dec-30-03
1103123968 1			333,871.00	330,912.21	Nov-22-04	7.240%	CA - 79.99%	Paid Off - 360	Dec-30-03
1103123989 1			80,000.00	79,200.13	Nov-16-04	6.625%	AZ - 76.19%	Paid Off - 360	Dec-30-03
1103124057 1			176,000.00	174,156.25	Nov-16-04	7.125%	CA - 80.00%	Paid Off - 360	Dec-30-03
1103124070 1			198,400.00	196,075.19	Nov-24-04	6.250%	CA - 80.00%	Paid Off - 360	Dec-30-03
1103124090 1			260,000.00	256,801.21	Nov-17-04	5.990%	CA - 80.00%	Paid Off - 360	Dec-30-03
1103124137 1			479,200.00	473,565.04	Nov-02-04	6.990%	CA - 80.00%	Paid Off - 360	Dec-30-03
2503041886 1			300,000.00	299,997.70	Nov-09-04	6.875%	CA - 80.00%	Paid Off - 360	Dec-08-03
2503042105 1			180,500.00	180,072.95	Nov-16-04	5.250%	CA - 95.00%	Paid Off - 360	Dec-16-03
2503042300 1			220,000.00	220,000.00	Nov-05-04	6.125%	CA - 65.68%	Paid Off - 360	Dec-16-03
2503043287 1			136,000.00	135,074.57	Nov-03-04	5.750%	CA - 52.31%	Paid Off - 360	Dec-23-03
2503043656 1			318,000.00	317,991.82	Nov-22-04	4.875%	CA - 80.00%	Paid Off - 360	Jan-12-04
2503043897 1			136,500.00	134,966.79	Nov-22-04	5.000%	NJ - 70.00%	Paid Off - 360	Jan-14-04
2503044988 1			227,400.00	227,400.00	Nov-12-04	4.625%	CA - 70.00%	Paid Off - 360	Jan-07-04
2503045366 1			92,000.00	91,359.81	Nov-01-04	4.750%	UT - 80.00%	Paid Off - 360	Jan-15-04


					Page 18 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Realized Loss Report for December 27, 2004 Distribution


	Realized Loss Report - Collateral


COLLATERAL REALIZED LOSSES								TOTAL

	*Current*
	Number of Loans Liquidated							-
	Collateral Realized Loss/(Gain) Amount							-
	Net Liquidation Proceeds							-

	*Cumulative*
	Number of Loans Liquidated							1
	Collateral Realized Loss/(Gain) Amount							2,499.98
	Net Liquidation Proceeds							472,603.53

	Note: Collateral Realized Loss Amount may include adjustments to loans liquidated in prior periods.


	Cumulative Loss Percentage For Related Payment Date							249998.0000%


							3 Months Moving Average


Collateral Loss Severity Approximation by Groups					Collateral Loss Severity Approximation


				Page 19 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Realized Loss Report for December 27, 2004 Distribution


	Realized Loss Report - Collateral


DEFAULT SPEEDS								TOTAL

	MDR							0.00%
	3 Months Avg MDR							0.02%
	12 Months Avg MDR
	Avg MDR Since Cut-off							0.01%

	CDR							0.00%
	3 Months Avg CDR							0.22%
	12 Months Avg CDR
	Avg CDR Since Cut-off							0.06%

	SDA							0.00%
	3 Months Avg SDA Approximation							1.01%
	12 Months Avg SDA Approximation
	Avg SDA Since Cut-off Approximation							0.43%

	Loss Severity Approximation for Current Period
	3 Months Avg Loss Severity Approximation
	12 Months Avg Loss Severity Approximation
	Avg Loss Severity Approximation Since Cut-off



CDR by Groups					Total CDR


SDA by Groups					Total SDA


				Page 20 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Realized Loss Report for December 27, 2004 Distribution


	Realized Loss Report - Collateral




CDR Avg since Cut-Off by Groups					Total CDR Avg since Cut-Off


SDA Avg since Cut-Off by Groups					Total SDA Avg since Cut-Off


COLLATERAL REALIZED LOSS CALCULATION METHODOLOGY
Monthly Default Rate (MDR): (Beg Principal Balance of Liquidated Loans)/(Total Beg Principal Balance)
Conditional Default Rate (CDR): 1-((1-MDR)^12)
SDA Standard Default Assumption: CDR/IF(WAS<61,MIN(30,WAS)0.02,MAX(0.03,MIN(30,WAS)0.02-0.0095*(WAS-60)))
Average MDR over period between nth month and mth month (AvgMDRn,m): [(1-MDRn) * (1-MDRn+1) .......(1-MDRm)]^(1/months in period n,m)
Average CDR over period between the nth month and mth month (AvgCDRn,m): 1-((1-AvgMDRn,m)^12)
Average SDA Approximation over period between the nth month and mth month:
AvgCDRn,m/IF(Avg WASn,m<61,MIN(30,Avg WASn,m)0.02,MAX(0.03,MIN(30,Avg WASn,m)0.02-0.0095*(Avg WASn,m-60)))
Average WASn,m: (WASn + WASn+1 +.......+ WASm )/(number of months in the period n,m)
Loss Severity Approximation for current period: sum(Realized Loss Amount)/sum(Beg Principal Balance of Liquidated Loans)
Average Loss Severity Approximation over period between nth month and mth month: Avg(Loss Severityn,m)
Note: Default rates are calculated since deal issue date and include realized gains and additional realized losses and gains from prior periods.
Dates correspond to distribution dates.

				Page 21 of 24				© COPYRIGHT 2004 Deutsche Bank


	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Realized Loss Detail Report for December 27, 2004 Distribution


	Realized Loss Detail Report - Loans Liquidated During Current Distribution

SUMMARY							LOAN GROUP
Total Loan Count Current Losses = 0
Total Loan Count Revisions = 0						Loan Group 1 = Adjustable
Total Prior Principal Balance = 0.00
Total Current Realized Loss Amount = 0.00
Total Revisions Amount = 0.00
Total Realized Loss Amount = 0.00
Total Net Liquidation Proceeds = 0.00
Note: Total Realized Loss Amount may include adjustments to loans liquidated in prior periods.

Loan Number			Current	State &		Prior	Realized		Cumulative
&		Loan	Note	LTV at	Original	Principal	Loss/(Gain)	Realized	Realized
Loan Group		Status	Rate	Origination	Term	Balance	Revisions	Loss/(Gain)	Loss/(Gain)
SPACE INTENTIONALLY LEFT BLANK


					Page 22 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Triggers, Adj. Rate Cert. and Miscellaneous Report for December 27, 2004 Distribution


	Triggers, Adj. Rate Cert. and Miscellaneous Report


TRIGGER EVENTS								TOTAL
SPACE INTENTIONALLY LEFT BLANK


ADJUSTABLE RATE CERTIFICATE INFORMATION								TOTAL


	Current Periods LIBOR Rate							2.1800%


ADDITIONAL INFORMATION								TOTAL


	Current Periods Net Mortgage Rate							5.1399%


				Page 23 of 24				© COPYRIGHT 2004 Deutsche Bank
	Impac CMB Trust 2004-1
	Mortgage Pass-Through Certificates
	Series 2004-1
	Other Related Information for December 27, 2004 Distribution


	Other Related Information


ADDITIONAL INFORMATION								TOTAL


	Net Derivative Contracts Payment Amt - Paid / (Recvd)							353,281.38


	RISK ID: 643809D / EFFORT ID: N406967 / GLOBAL DEAL ID: 458369							9,052.00
	RISK ID: 643793D / EFFORT ID: N406968 / GLOBAL DEAL ID: 458375							60,239.94
	RISK ID: 630047D / EFFORT ID: N397445 / GLOBAL DEAL ID: 446550							42,648.98
	RISK ID: 643823D / EFFORT ID: N406971 / GLOBAL DEAL ID: 458383							4,958.89
	RISK ID: 643807D / EFFORT ID: N406972 / GLOBAL DEAL ID: 458385							49,218.10
	RISK ID: 643925D / EFFORT ID: N407091 / GLOBAL DEAL ID: 458388							26,853.20
	RISK ID: 643821D / EFFORT ID: N406980 / GLOBAL DEAL ID: 458396							26,765.59
	RISK ID: 643799D / EFFORT ID: N406981 / GLOBAL DEAL ID: 458399							53,348.38
	RISK ID: 643789D / EFFORT ID: N406975 / GLOBAL DEAL ID: 458402							42,776.28
	RISK ID: 643781D / EFFORT ID: N406978 / GLOBAL DEAL ID: 458409							11,805.03
	RISK ID: 643791D / EFFORT ID: N406979 / GLOBAL DEAL ID: 458416							25,614.99


				Page 24 of 24				© COPYRIGHT 2004 Deutsche Bank

IMH ASSETS CORP IMPAC CMB TRUST SERIES 2004-1 8-K