Exhibit 99.1

MONTHLY SERVICER'S CERTIFICATE

CARMAX BUSINESS SERVICES, LLC

CARMAX AUTO OWNER TRUST

SERIES 2016-4

Collection Period

08/01/20-08/31/20

Determination Date

9/10/2020

Distribution Date

9/15/2020

Additional information, including defined terms, can be found in the prospectus on the SEC's EDGAR system (http://www.sec.gov) under File No. 333-207329-04.


Pool Balance
1.	Pool Balance on the close of the last day of the preceding Collection Period			$	181,540,607.27
2.	Collections allocable to Principal			$	13,399,881.75
3.	Purchase Amount allocable to Principal			$	0.00
4.	Defaulted Receivables			$	258,267.83
5.	Pool Balance on the close of the last day of the related Collection Period			$	167,882,457.69
	(Ln1 - Ln2 - Ln3 - Ln4)
6.	Total number of Receivables outstanding on the close of the last day of the related Collection Period			28,634
7.	Initial Pool Balance			$	1,300,000,031.51
		Beginning of Period		End of Period
8.	Note Balances
	a. Class A-1 Note Balance	$	0.00	$	0.00
	b. Class A-2 Note Balance	$	0.00	$	0.00
	c. Class A-3 Note Balance	$	0.00	$	0.00
	d. Class A-4 Note Balance	$	103,540,607.11	$	89,882,457.53
	e. Class B Note Balance	$	25,950,000.00	$	25,950,000.00
	f. Class C Note Balance	$	22,100,000.00	$	22,100,000.00
	g. Class D Note Balance	$	23,450,000.00	$	23,450,000.00
	h. Note Balance (sum a - g)	$	175,040,607.11	$	161,382,457.53
9.	Pool Factors
	a. Class A-1 Note Pool Factor	0.0000000		0.0000000
	b. Class A-2 Note Pool Factor	0.0000000		0.0000000
	c. Class A-3 Note Pool Factor	0.0000000		0.0000000
	d. Class A-4 Note Pool Factor	0.7934146		0.6887545
	e. Class B Note Pool Factor	1.0000000		1.0000000
	f. Class C Note Pool Factor	1.0000000		1.0000000
	g. Class D Note Pool Factor	1.0000000		1.0000000
	h. Note Pool Factor	0.1346466		0.1241404
10.	Overcollateralization Target Amount			$	6,500,000.16
11.	Current overcollateralization amount (Pool Balance - Note Balance)			$	6,500,000.16
12.	Weighted Average Coupon			7.95		%
13.	Weighted Average Original Term	months		68.97
14.	Weighted Average Remaining Term	months		19.91
Collections
15.	Finance Charges:
	a. Collections allocable to Finance Charge			$	1,247,491.18
	b. Liquidation Proceeds allocable to Finance Charge			$	6,109.13
	c. Purchase Amount allocable to Finance Charge			$	0.00
	d. Available Finance Charge Collections (sum a - c)			$	1,253,600.31
16.	Principal:
	a. Collections allocable to Principal			$	13,399,881.75
	b. Liquidation Proceeds allocable to Principal			$	199,795.63
	c. Purchase Amount allocable to Principal			$	0.00
	d. Available Principal Collections (sum a - c)			$	13,599,677.38


17.	Total Finance Charge and Principal Collections (15d + 16d)	$	14,853,277.69
18.	Interest Income from Collection Account	$	645.17
19.	Simple Interest Advances	$	0.00
20.	Available Collections (Ln17 + 18 + 19)	$	14,853,922.86
Available Funds
21.	Available Collections	$	14,853,922.86
22.	Reserve Account Draw Amount	$	0.00
23.	Available Funds	$	14,853,922.86
Application of Available Funds
24.	Servicing Fee
	a. Monthly Servicing Fee	$	151,283.84
	b. Amount Unpaid from Prior Months	$	0.00
	c. Amount Paid	$	151,283.84
	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	$	0.00
	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)	$	0.00
	e. Class A-2 Monthly Interest	$	0.00
	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)	$	0.00
	i. Class A-3 Monthly Interest	$	0.00
	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)	$	0.00
	m. Class A-4 Monthly Interest	$	138,054.14
	n. Additional Note Interest related to Class A-4 Monthly Interest	$	0.00
	o. Interest Due on Additional Note Interest related to Class A-4 Monthly Interest	$	0.00
	p. Total Class A-4 Note Interest (sum m - o)	$	138,054.14
28.	Priority Principal Distributable Amount	$	0.00
29.	Class B Noteholder Interest Amount
	a. Class B Monthly Interest	$	41,520.00
	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)	$	41,520.00
30.	Secondary Principal Distributable Amount	$	0.00
31.	Class C Noteholder Interest Amount
	a. Class C Monthly Interest	$	41,621.67
	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)	$	41,621.67
32.	Tertiary Principal Distributable Amount	$	0.00

33.

Class D Noteholder Interest Amount


	a. Class D Monthly Interest	$	56,866.25
	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)	$	56,866.25
34.	Quaternary Principal Distributable Amount	$	7,158,149.42
35.	Required Payment Amount (Ln 24 + Ln 26 + (sum of Ln 27 through Ln 34))	$	7,587,495.32
36.	Reserve Account Deficiency	$	0.00
37.	Regular Principal Distributable Amount	$	6,500,000.16
38.	Remaining Unpaid Servicer Transition Expenses and Additional Servicing Fees, if any	$	0.00
39.	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
40.	Remaining Unpaid Successor Servicer Indemnity Amounts, if any	$	0.00
Collection Account Activity
41.	Deposits
	a. Total Daily Deposits of Finance Charge Collections	$	1,253,600.31
	b. Total Daily Deposits of Principal Collections	$	13,599,677.38
	c. Withdrawal from Reserve Account	$	0.00
	d. Interest Income	$	645.17
	e. Total Deposits to Collection Account (sum a - d)	$	14,853,922.86
42.	Withdrawals
	a. Servicing Fee and Unreimbursed Servicer Advances	$	151,283.84
	b. Successor Servicer Transition Expenses and Indemnity Amounts	$	0.00
	c. Deposit to Note Payment Account for Monthly Note Interest/Principal	$	13,936,211.64
	d. Deposit to Reserve Account	$	0.00
	e. Excess Collections (Deposit to Certificate Payment Account for payment to Certificateholder)	$	766,427.38
	f. Total Withdrawals from Collection Account (sum a - e)	$	14,853,922.86
Note Payment Account Activity
43.	Deposits
	a. Class A-1 Interest Distribution	$	0.00
	b. Class A-2 Interest Distribution	$	0.00
	c. Class A-3 Interest Distribution	$	0.00
	d. Class A-4 Interest Distribution	$	138,054.14
	e. Class B Interest Distribution	$	41,520.00
	f. Class C Interest Distribution	$	41,621.67
	g. Class D Interest Distribution	$	56,866.25
	h. Class A-1 Principal Distribution	$	0.00
	i. Class A-2 Principal Distribution	$	0.00
	j. Class A-3 Principal Distribution	$	0.00
	k. Class A-4 Principal Distribution	$	13,658,149.58
	l. Class B Principal Distribution	$	0.00
	m. Class C Principal Distribution	$	0.00
	n. Class D Principal Distribution	$	0.00
	o. Total Deposits to Note Payment Account (sum a - n)	$	13,936,211.64
44.	Withdrawals
	a. Class A-1 Distribution	$	0.00
	b. Class A-2 Distribution	$	0.00
	c. Class A-3 Distribution	$	0.00
	d. Class A-4 Distribution	$	13,796,203.72
	e. Class B Distribution	$	41,520.00


f. Class C Distribution	$	41,621.67
g. Class D Distribution	$	56,866.25
h. Total Withdrawals from Note Payment Account (sum a - g)	$	13,936,211.64


Certificate Payment Account Activity
45.	Deposits
	a. Excess Collections	$	766,427.38
	b. Reserve Account surplus (Ln 55)	$	153.62
	c. Total Deposits to Certificate Payment Account (sum a - b)	$	766,581.00
46.	Withdrawals
	a. Certificateholder Distribution	$	766,581.00
	b. Total Withdrawals from Certificate Payment Account	$	766,581.00
Required Reserve Account Amount
47.	Lesser of: (a or b)
	a. $3,250,000.08	$	3,250,000.08
	b. Note Balance	$	161,382,457.53
48.	Required Reserve Account Amount	$	3,250,000.08
Reserve Account Reconciliation
49.	Beginning Balance (as of end of preceding Distribution Date)	$	3,250,000.08
50.	Investment Earnings	$	153.62
51.	Reserve Account Draw Amount	$	0.00
52.	Reserve Account Amount (Ln 49 + Ln 50 - Ln 51)	$	3,250,153.70
53.	Deposit from Available Funds (Ln 42d)	$	0.00
54.	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	$	0.00
	b. any Successor Servicer for the payment of any unfunded Transition Costs and Additional Servicing Fee	$	0.00
55.	Payment to Certificateholder if Reserve Account Balance exceeds Required Reserve Account Amount and to the extent no unfunded amounts described in Ln 54 exist	$	153.62
56.	Ending Balance (Ln52 + Ln53 - Ln54 - Ln55)	$	3,250,000.08
57.	Reserve Account Deficiency (Ln48 - Ln56)	$	0.00
Instructions to the Trustee
58.	Amount to be deposited from the Reserve Account into the Collection Account	$	0.00
59.	Amount to be paid to Servicer from the Collection Account	$	151,283.84
60.	Amount to be deposited from the Collection Account into the Note Payment Account	$	13,936,211.64
61.	Amount to be deposited from the Collection Account into the Certificate Payment Account	$	766,427.38
62.	Amount to be deposited from the Collection Account into the Reserve Account	$	0.00
63.	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	$	0.00
	b. the Certificate Payment Account for payment to the Certificateholder, if no unfunded Regular Principal distributable amount exists	$	153.62
64.	Amount to be paid to Class A-1 Noteholders from the Note Payment Account	$	0.00
65.	Amount to be paid to Class A-2 Noteholders from the Note Payment Account	$	0.00
66.	Amount to be paid to Class A-3 Noteholders from the Note Payment Account	$	0.00
67.	Amount to be paid to Class A-4 Noteholders from the Note Payment Account	$	13,796,203.72
68.	Amount to be paid to Class B Noteholders from the Note Payment Account	$	41,520.00
69.	Amount to be paid to Class C Noteholders from the Note Payment Account	$	41,621.67
70.	Amount to be paid to Class D Noteholders from the Note Payment Account	$	56,866.25
71.	Amount to be paid to Certificateholders from the Certificate Payment Account with respect to Excess Collections and Reserve Account surplus	$	766,581.00


Delinquency Activity
		Number of Loans	Principal Balance
72.	Delinquency Analysis
	a. 31 to 60 days past due	590	$	5,168,517.40
	b. 61 to 90 days past due	245	$	2,247,749.27
	c. 91 to 120 days past due	64	$	544,890.90
	d. 121 or more days past due	1	$	281.14
	e. Total Past Due (sum a - d)	900	$	7,961,438.71
	f. Delinquent Loans as a percentage of end of period Pool Balance (Ln 72e / Ln 5)		4.7423		%

73.	Has a Delinquency Trigger Event occurred?		No

Loss Activity
		Number of Loans	Principal Balance

74.	Defaulted Receivables (charge-offs)	31	$	258,267.83
75.	Recoveries	220	$	205,904.76
76.	Net Losses (Ln 74 - Ln 75)		$	52,363.07
77.	Ratio of Net Losses to Beginning of Period Pool Balance (Ln 76 / Ln 1)		0.0288		%

Cumulative Loss Activity
		Number of Loans	Principal Balance

78.	Defaulted Receivables (charge-offs)	4,207	$	52,287,978.15
79.	Recoveries	3,501	$	23,155,979.31
80.	Cumulative Net Losses (Ln 78 - Ln 79)		$	29,131,998.84
81.	Ratio of Cumulative Net Losses to Initial Pool Balance (Ln 80 / Ln 7)		2.2409		%
82.	Average Net Loss on Defaulted Receivables		$	6,924.65

Other Servicing Information

83.	Principal Balance of Receivables extended during the Collection Period		$	1,789,812.06
84.	Pool Balance on the close of the last day of the preceding Collection Period		$	181,540,607.27
85.	Ratio of extensions to pool balance (Ln 83 / Ln 84)		0.99		%

Servicer Covenant
86.	CarMax, Inc Consolidated Tangible Net Worth as of the end of the Related Fiscal Quarter		$	3,553,998,000.00
87.	Is CarMax, Inc Consolidated Tangible Net Worth greater than $1,000,000,000?		Yes

IN WITNESS WHEREOF, the undersigned has duly executed this certificate on September 10, 2020.


CARMAX BUSINESS SERVICES, LLC

As Servicer

By:			/s/ Andrew J. McMonigle

Name:			Andrew J. McMonigle

Title:			Vice President and Treasurer

CarMax Auto Owner Trust 2016-4 10-D