Exhibit 99.1

MONTHLY SERVICER'S CERTIFICATE

CARMAX BUSINESS SERVICES, LLC

CARMAX SELECT RECEIVABLES TRUST

SERIES 2025-B

Collection Period

09/01/25-09/30/25

Determination Date

10/9/2025

Distribution Date

10/15/2025

Additional information, including defined terms, can be found in the prospectus on the SEC's EDGAR system (http://www.sec.gov) under File No. 333-288943-01.


Pool Balance
1.	Pool Balance on the close of the last day of the preceding Collection Period			$	923,081,739.63
2.	Collections allocable to Principal			$	23,714,628.64
3.	Purchase Amount allocable to Principal			$	0.00
4.	Defaulted Receivables			$	18,966.90
5.	Pool Balance on the close of the last day of the related Collection Period			$	899,348,144.09
	(Ln1 - Ln2 - Ln3 - Ln4)
6.	Total number of Receivables outstanding on the close of the last day of the related Collection Period			48,127
7.	Initial Pool Balance			$	923,081,739.63
		Beginning of Period		End of Period
8.	Note Balances
	a. Class A-1 Note Balance	$	203,800,000.00	$	172,214,140.55
	b. Class A-2 Note Balance	$	303,160,000.00	$	303,160,000.00
	c. Class A-3 Note Balance	$	177,040,000.00	$	177,040,000.00
	d. Class B Note Balance	$	60,920,000.00	$	60,920,000.00
	e. Class C Note Balance	$	71,540,000.00	$	71,540,000.00
	f. Class D Note Balance	$	68,770,000.00	$	68,770,000.00
	g. Class E Note Balance	$	14,770,000.00	$	14,770,000.00
	h. Note Balance (sum a - g)	$	900,000,000.00	$	868,414,140.55
9.	Pool Factors
	a. Class A-1 Note Pool Factor	1.0000000		0.8450154
	b. Class A-2 Note Pool Factor	1.0000000		1.0000000
	c. Class A-3 Note Pool Factor	1.0000000		1.0000000
	d. Class B Note Pool Factor	1.0000000		1.0000000
	e. Class C Note Pool Factor	1.0000000		1.0000000
	f. Class D Note Pool Factor	1.0000000		1.0000000
	g. Class E Note Pool Factor	1.0000000		1.0000000
	h. Note Pool Factor	1.0000000		0.9649046
10.	Overcollateralization Target Amount			$	76,444,592.25
11.	Current overcollateralization amount (Pool Balance - Note Balance)			$	30,934,003.54
12.	Weighted Average Coupon			16.05		%
13.	Weighted Average Original Term	months		69.42
14.	Weighted Average Remaining Term	months		59.34
Collections
15.	Finance Charges:
	a. Collections allocable to Finance Charge			$	11,863,517.44
	b. Liquidation Proceeds allocable to Finance Charge			$	0.00
	c. Purchase Amount allocable to Finance Charge			$	0.00
	d. Available Finance Charge Collections (sum a - c)			$	11,863,517.44
16.	Principal:
	a. Collections allocable to Principal			$	23,714,628.64
	b. Liquidation Proceeds allocable to Principal			$	0.00
	c. Purchase Amount allocable to Principal			$	0.00
	d. Available Principal Collections (sum a - c)			$	23,714,628.64
17.	Total Finance Charge and Principal Collections (15d + 16d)			$	35,578,146.08
18.	Interest Income from Collection Account			$	22,387.29
19.	Simple Interest Advances			$	0.00
20.	Available Collections (Ln17 + 18 + 19)			$	35,600,533.37


Available Funds
21.	Available Collections	$	35,600,533.37
22.	Reserve Account Draw Amount	$	0.00
23.	Available Funds	$	35,600,533.37
Application of Available Funds
24.	Servicing Fee	0.15		%
	a. Monthly Servicing Fee	$	1,730,778.26
	b. Amount Unpaid from Prior Months	$	0.00
	c. Amount Paid	$	1,730,778.26
	d. Shortfall Amount (a + b - c)	$	0.00
25.	Unreimbursed Servicer Advances	$	0.00
26.	Successor Servicer and Asset Representations Reviewer Unpaid Expenses and Indemnity Amounts
	a. Successor Servicer Unpaid Transition Expenses and Indemnity Amounts (Capped at $175,000 annually)	$	0.00
	b. Successor Servicer Amount Paid	$	0.00
	c. Successor Servicer Shortfall Amount (a - b)	$	0.00
	d. Asset Representations Reviewer Fees, Expenses and Indemnity Amounts (Capped at $175,000 annually)	$	0.00
	e. Asset Representations Reviewer Amount Paid	$	0.00
	f. Asset Representations Reviewer Shortfall Amount (d - e)	$	0.00
27.	Class A Noteholder Interest Amounts
	a. Class A-1 Monthly Interest	$	495,267.97
	b. Additional Note Interest related to Class A-1 Monthly Interest	$	0.00
	c. Interest Due on Additional Note Interest related to Class A-1 Monthly Interest	$	0.00
	d. Total Class A-1 Note Interest (sum a - c)	$	495,267.97
	e. Class A-2 Monthly Interest	$	740,973.57
	f. Additional Note Interest related to Class A-2 Monthly Interest	$	0.00
	g. Interest Due on Additional Note Interest related to Class A-2 Monthly Interest	$	0.00
	h. Total Class A-2 Note Interest (sum e - g)	$	740,973.57
	i. Class A-3 Monthly Interest	$	425,486.13
	j. Additional Note Interest related to Class A-3 Monthly Interest	$	0.00
	k. Interest Due on Additional Note Interest related to Class A-3 Monthly Interest	$	0.00
	l. Total Class A-3 Note Interest (sum i - k)	$	425,486.13
28.	Priority Principal Distributable Amount	$	0.00
29.	Class B Noteholder Interest Amount
	a. Class B Monthly Interest	$	154,584.50
	b. Additional Note Interest related to Class B Monthly Interest	$	0.00
	c. Interest Due on Additional Note Interest related to Class B Monthly Interest	$	0.00
	d. Total Class B Note Interest (sum a - c)	$	154,584.50
30.	Secondary Principal Distributable Amount	$	0.00
31.	Class C Noteholder Interest Amount
	a. Class C Monthly Interest	$	201,563.95
	b. Additional Note Interest related to Class C Monthly Interest	$	0.00
	c. Interest Due on Additional Note Interest related to Class C Monthly Interest	$	0.00
	d. Total Class C Note Interest (sum a - c)	$	201,563.95
32.	Tertiary Principal Distributable Amount	$	0.00
33.	Class D Noteholder Interest Amount
	a. Class D Monthly Interest	$	213,817.39
	b. Additional Note Interest related to Class D Monthly Interest	$	0.00
	c. Interest Due on Additional Note Interest related to Class D Monthly Interest	$	0.00
	d. Total Class D Note Interest (sum a - c)	$	213,817.39


34.	Quaternary Principal Distributable Amount	$	0.00
35.	Class E Noteholder Interest Amount
	a. Class E Monthly Interest	$	59,363.09
	b. Additional Note Interest related to Class E Monthly Interest	$	0.00
	c. Interest Due on Additional Note Interest related to Class E Monthly Interest	$	0.00
	d. Total Class E Note Interest (sum a - c)	$	59,363.09
36.	Quinary Principal Distributable Amount	$	651,855.91


37.	Required Payment Amount (Ln 24 + Ln 26 + (sum of Ln 27 through Ln 36))	$	4,673,690.77
38.	Reserve Account Deficiency	$	0.00
39.	Regular Principal Distributable Amount	$	76,444,592.25
40.	Remaining Unpaid Servicer Transition Expenses and Additional Servicing Fees, if any	$	0.00
41.	Remaining Unpaid Trustee and Asset Representations Reviewer Fees, Expenses and Indemnity Amounts, if any
	a. Remaining Unpaid Trustee Fees, Expenses and Indemnity Amounts	$	0.00
	b. Remaining Unpaid Asset Representations Reviewer Fees, Expenses and Indemnity Amounts	$	0.00
42.	Remaining Unpaid Successor Servicer Indemnity Amounts, if any	$	0.00
Collection Account Activity		0.15		%
43.	Deposits
	a. Total Daily Deposits of Finance Charge Collections	$	11,863,517.44
	b. Total Daily Deposits of Principal Collections	$	23,714,628.64
	c. Withdrawal from Reserve Account	$	0.00
	d. Interest Income	$	22,387.29
	e. Total Deposits to Collection Account (sum a - d)	$	35,600,533.37
44.	Withdrawals
	a. Servicing Fee and Unreimbursed Servicer Advances	$	1,730,778.26
	b. Successor Servicer Transition Expenses and Indemnity Amounts	$	0.00
	c. Deposit to Note Payment Account for Monthly Note Interest/Principal	$	33,869,755.11
	d. Deposit to Reserve Account	$	0.00
	e. Excess Collections (Deposit to Certificate Payment Account for payment to Certificateholder)	$	0.00
	f. Total Withdrawals from Collection Account (sum a - e)	$	35,600,533.37
Note Payment Account Activity
45.	Deposits
	a. Class A-1 Interest Distribution	$	495,267.97
	b. Class A-2 Interest Distribution	$	740,973.57
	c. Class A-3 Interest Distribution	$	425,486.13
	d. Class B Interest Distribution	$	154,584.50
	e. Class C Interest Distribution	$	201,563.95
	f. Class D Interest Distribution	$	213,817.39
	g. Class E Interest Distribution	$	59,363.09
	h. Class A-1 Principal Distribution	$	31,585,859.45
	i. Class A-2 Principal Distribution	$	0.00
	j. Class A-3 Principal Distribution	$	0.00
	k. Class B Principal Distribution	$	0.00
	l. Class C Principal Distribution	$	0.00
	m. Class D Principal Distribution	$	0.00
	n. Class E Principal Distribution	$	0.00
	o. Total Deposits to Note Payment Account (sum a - n)	$	33,876,916.05
46.	Withdrawals
	a. Class A-1 Distribution	$	32,081,127.42
	b. Class A-2 Distribution	$	740,973.57
	d. Class A-3 Distribution	$	425,486.13
	e. Class B Distribution	$	154,584.50
	f. Class C Distribution	$	201,563.95
	g. Class D Distribution	$	213,817.39
	h. Class E Distribution	$	59,363.09
	i. Total Withdrawals from Note Payment Account (sum a - g)	$	33,876,916.05


Certificate Payment Account Activity
47.	Deposits to Certificate Payment Account from Excess Collections	$	0.00
48.	Withdrawals from Certificate Payment Account for Certificateholder Distribution	$	0.00
Required Reserve Account Amount		0.15		%
49.	Required Reserve Account Amount (1.00% of Initial Pool Balance)	$	9,230,817.40
Reserve Account Reconciliation
50.	Beginning Balance (as of end of preceding Distribution Date)	$	9,230,817.40
51.	Investment Earnings	$	7,160.94
52.	Reserve Account Draw Amount	$	0.00
53.	Reserve Account Amount (Ln 50 + Ln 51 - Ln 52)	$	9,237,978.34
54.	Deposit from Available Funds (Ln 44d)	$	0.00
55.	If Reserve Account Balance exceeds Required Reserve Account Amount, payment to
	a. the Note Payment Account for the payment of principal to the extent of any unfunded Regular Principal Distribution Amount; and	$	7,160.94
	b. any Successor Servicer for the payment of any unfunded Transition Costs and Additional Servicing Fee	$	0.00
56.	Payment to Depositor if Reserve Account Balance exceeds Required Reserve Account Amount and to the extent no unfunded amounts described in Ln 55 exist	$	0.00
57.	Ending Balance (Ln53 + Ln54 - Ln55 - Ln56)	$	9,230,817.40
58.	Reserve Account Deficiency (Ln50 - Ln57)	$	0.00
Instructions to the Trustee
59.	Amount to be deposited from the Reserve Account into the Collection Account	$	0.00
60.	Amount to be paid to Servicer from the Collection Account	$	1,730,778.26
61.	Amount to be deposited from the Collection Account into the Note Payment Account	$	33,869,755.11
62.	Amount to be deposited from the Collection Account into the Certificate Payment Account	$	0.00
63.	Amount to be deposited from the Collection Account into the Reserve Account	$	0.00
64.	Amount to be deposited from the Reserve Account, if Reserve Account Balance exceeds Required Reserve Account Amount, into
	a. the Note Payment Account for any unfunded Regular Principal Distributable Amount	$	7,160.94
	b. the Depositor, if no unfunded Regular Principal distributable amount exists	$	0.00
65.	Amount to be paid to Class A-1 Noteholders from the Note Payment Account	$	32,081,127.42
66.	Amount to be paid to Class A-2 Noteholders from the Note Payment Account	$	740,973.57
67.	Amount to be paid to Class A-3 Noteholders from the Note Payment Account	$	425,486.13
68.	Amount to be paid to Class B Noteholders from the Note Payment Account	$	154,584.50
69.	Amount to be paid to Class C Noteholders from the Note Payment Account	$	201,563.95
70.	Amount to be paid to Class D Noteholders from the Note Payment Account	$	201,563.95
71.	Amount to be paid to Class E Noteholders from the Note Payment Account	$	59,363.09
72.	Amount to be paid to Certificateholders from the Certificate Payment Account with respect to Excess Collections	$	0.00


Delinquency Activity
		Number of Loans	Principal Balance
73.	Delinquency Analysis
	a. 31 to 60 days past due	1,352	$	26,298,495.84
	b. 61 to 90 days past due	10	$	265,050.04
	c. 91 to 120 days past due	0	$	0.00
	d. 121 or more days past due	0	$	0.00
	e. Total Past Due (sum a - d)	1,362	$	26,563,545.88
	f. Delinquent Loans as a percentage of end of period Pool Balance (Ln 73e / Ln 5)		2.9536		%

74.	Has a Delinquency Trigger Event occurred?		No

Loss Activity
		Number of Loans	Principal Balance

75.	Defaulted Receivables (charge-offs)	1	$	18,966.90
76.	Recoveries	0	$	0.00
77.	Net Losses (Ln 75 - Ln 76)		$	18,966.90
78.	Ratio of Net Losses to Beginning of Period Pool Balance (Ln 77 / Ln 1)		0.0021		%

Cumulative Loss Activity
		Number of Loans	Principal Balance

79.	Defaulted Receivables (charge-offs)	1	$	18,966.90
80.	Recoveries	0	$	0.00
81.	Cumulative Net Losses (Ln 79 - Ln 80)		$	18,966.90
82.	Ratio of Cumulative Net Losses to Initial Pool Balance (Ln 81 / Ln 7)		0.0021		%
83.	Average Net Loss on Defaulted Receivables		$	18,966.90

Other Servicing Information

84.	Principal Balance of Receivables extended during the Collection Period		$	10,023,912.39
85.	Pool Balance on the close of the last day of the preceding Collection Period		$	923,081,739.63
86.	Ratio of extensions to pool balance (Ln 85 / Ln 86)		1.09		%

IN WITNESS WHEREOF, the undersigned has duly executed this certificate on October 09, 2025


CARMAX BUSINESS SERVICES, LLC

As Servicer

By:			/s/ Greg Dostich

Name:			Greg Dostich

Title:			Vice President and Treasurer

CarMax Select Receivables Trust 2025-B 10-D