					Payment Date:	July 25, 2005
					Record Date:	June 30, 2005

Trustee's Report to Certificateholders
Payment Summary
		Certificate	Interest	Original	Beginning	Principal
Class	CUSIP	Interest Rate	Type	Balance	Balance	Paid
A1	86359B6P1	3.404380%	Variable	$ 204,572,000.00	$ 187,583,648.79	$ 10,886,554.88
A2	86359B6Q9	3.514380%	Variable	$ 103,580,000.00	$ 103,580,000.00	$ -
A3	86359B6R7	3.614380%	Variable	$ 49,126,000.00	$ 49,126,000.00	$ -
M1	86359B6S5	3.784380%	Variable	$ 23,350,000.00	$ 23,350,000.00	$ -
M2	86359B6T3	3.814380%	Variable	$ 11,985,000.00	$ 11,985,000.00	$ -
M3	86359B6U0	3.914380%	Variable	$ 3,100,000.00	$ 3,100,000.00	$ -
M4	86359B6V8	4.064380%	Variable	$ 5,166,000.00	$ 5,166,000.00	$ -
M5	86359B6X4	4.214380%	Variable	$ 3,719,000.00	$ 3,719,000.00	$ -
M6	86359B6Y2	4.564380%	Variable	$ 2,480,000.00	$ 2,480,000.00	$ -
M7	86359B6Z9	4.914380%	Variable	$ 2,066,000.00	$ 2,066,000.00	$ -
M8	86359B7A3	5.789100%	Variable	$ 2,066,000.00	$ 2,066,000.00	$ -
X		2.601374%	Variable	$ 2,066,526.55	$ 2,066,526.55	$ -
R		0.000000%	N/A	$ -	$ -	$ -
P		0.000000%	N/A	$ 100.00	$ 100.00	$ -
			Totals:	$ 413,276,626.55	$ 396,288,275.34	$ 10,886,554.88

Distributions Per Certificate
	Beginning	Principal	Interest	Ending
Class	Cert. Factor	Distribution	Distribution	Cert. Factor
A1	916.95661571	53.21625090	2.42796459	863.74036481
A2	1,000.00000000	0.00000000	2.73340667	1,000.00000000
A3	1,000.00000000	0.00000000	2.81118444	1,000.00000000
M1	1,000.00000000	0.00000000	2.94340667	1,000.00000000
M2	1,000.00000000	0.00000000	2.96674000	1,000.00000000
M3	1,000.00000000	0.00000000	3.04451778	1,000.00000000
M4	1,000.00000000	0.00000000	3.16118444	1,000.00000000
M5	1,000.00000000	0.00000000	3.27785111	1,000.00000000
M6	1,000.00000000	0.00000000	3.55007333	1,000.00000000
M7	1,000.00000000	0.00000000	3.82229556	1,000.00000000
M8	1,000.00000000	0.00000000	4.56118444	1,000.00000000
R	NA	NA	NA	NA
P	NA	NA	NA	NA

Mortgage Loan Activity for related Payment Date:
# of Mortgage	Beginning Agg Sched	Principal Remittance	Current	Interest Remittance	Ending Agg Sched	Realized Loss
Loans	Principal Balance	Amount	Realized Loss	Amount	Principal Balance	Since Cutoff
2,688	396,288,275	10,886,555	0	1,949,001	385,401,720	0

Aggregate Delinquency information for related Payment Date:
	Current	One Month	Two Months	3 Months +	Bankruptcy	Foreclosures
# of Loans	2,620	29	16	2	8	11
Agg Prin Balance	377,772,147.51	3,539,395.11	1,105,737.70	61,523.62	935,872.46	1,878,931.43

REO Property and Substitution of Mortgage Loans Information
	REO	Deleted	Qualifying Substitute
	Property	Mortgage Loan	Mortgage Loan
Loan Number	N/A	N/A	N/A
Sched. Prin. Balance	N/A	N/A	N/A
Loan Number	N/A	N/A	N/A
Sched. Prin. Balance	N/A	N/A	N/A

Aggregate Overcollateralization Release Amount		0.00
Principal Distribution Amount		10,886,554.88
Shortfalls	Principal	0.00
	Interest	0.00
Ending Overcollateralization Amount		2,066,526.55
Overcollateralization Deficiency		0.00

Aggregate Class P Distribution		289,722.06
Aggregate Class X Distribution		1,023,738.69
Aggregate Class R Distribution		0.00

LIBOR Rate

3.31%

Structured Asset Securities Corporation

Mortgage Pass-Through Certificates

Series 2005-RMSI

Structured Asset Securities Corp. 2005-RMS1 8-K