MainStay CBRE Global Infrastructure Megatrends Term Fund (NYSE: MEGI) Q4 2023 19a Notice

MainStay CBRE Global Infrastructure Megatrends Term Fund (NYSE: MEGI)

October, November, December 2023 Distribution Information

MainStay CBRE Global Infrastructure Megatrends Term Fund (MEGI) (the "Fund") is providing this notice to shareholders with important information concerning the distributions declared for October, November, and December 2023 in the amount of $0.1250 per common share. This notice is intended for informational purposes; no action is required on your part.

The following tables set forth the estimated sources of income of the current distribution, and the cumulative distributions paid this fiscal year to date from the following sources: net investment income, net realized short-term capital gains, net realized long-term capital gains and return of capital or other capital source. All amounts are expressed on a per share of common stock basis and as a percentage of the distribution amount.

Data as of 10/31/2023
	Current	Percent of	Fiscal YTD	Fiscal YTD Percent of
	Distribution per	Current	Cumulative	the Total Cumulative
Source	Share	Distribution	Distribution per Share	Distributions
Net Investment Income	$0.0975	78%	$0.4085	69%
Net Realized Short-	$0.0075	6%	$0.0275	5%
Term Capital Gains
Net Realized Long-	$0.0200	16%	$0.1556	26%
Term Capital Gains
Return of Capital or	$-	-%	$-	-%
Other Capital Sources
Total per Share	$0.1250	100%	$0.5916	100%

Fund Performance and Distribution Rate Information as of 9/30/2023
Average annual total return1 (in relation to the net asset value (NAV))	-11.81%
Annualized current distribution rate expressed as a percentage of month end NAV as of	10.92%2
9/30/2023
Cumulative total return3 (in relation to NAV (not annualized)) for the fiscal year end through	-11.97%
9/30/2023
Cumulative fiscal year distributions as a percentage of NAV as of 9/30/2023	3.40%4

1. Represents the annualized total return in relation to the change in NAV from inception (10/27/2021) through 9/30/2023.
2. Represents the current monthly distribution rate annualized as a percentage of NAV as of 9/30/2023.
3. Represents the cumulative total return in relation to the change in NAV for the fiscal period 6/1/2023 through 9/30/2023.
4. Represents the cumulative distribution rate for the current fiscal period 6/1/2023 through 9/30/2023, which is determined by dividing the dollar value of distributions in the period by the NAV as of 9/30/2023.

October, November, December 2023 Distribution Information

Data as of 11/30/2023
	Current	Percent of	Fiscal YTD	Fiscal YTD Percent of
	Distribution per	Current	Cumulative	the Total Cumulative
Source	Share	Distribution	Distribution per Share	Distributions
Net Investment Income	$0.1117	89%	$0.5202	73%
Net Realized Short-	$0.0075	6%	$0.0350	5%
Term Capital Gains
Net Realized Long-	$0.0058	5%	$0.1614	22%
Term Capital Gains
Return of Capital or	$-	-%	$-	-%
Other Capital Sources
Total per Share	$0.1250	100%	$0.7166	100%

Fund Performance and Distribution Rate Information as of 10/31/2023
Average annual total return5 (in relation to the net asset value (NAV))	-12.72%
Annualized current distribution rate expressed as a percentage of month end NAV as of	11.37%6
10/31/2023
Cumulative total return7 (in relation to NAV (not annualized)) for the fiscal year end through	-14.69%
10/31/2023
Cumulative fiscal year distributions as a percentage of NAV as of 10/31/2023	4.49%8

1. Represents the annualized total return in relation to the change in NAV from inception (10/27/2021) through 10/31/2023.
2. Represents the current monthly distribution rate annualized as a percentage of NAV as of 10/31/2023.
3. Represents the cumulative total return in relation to the change in NAV for the current fiscal period 6/1/2023 through 10/31/2023.
4. Represents the cumulative distribution rate for the current fiscal period 6/1/2023 through 10/31/2023, which is determined by dividing the dollar value of distributions in the period by the NAV as of 10/31/2023.

October, November, December 2023 Distribution Information

Data as of 12/31/2023
	Current	Percent of	Fiscal YTD	Fiscal YTD Percent of
	Distribution per	Current	Cumulative	the Total Cumulative
Source	Share	Distribution	Distribution per Share	Distributions
Net Investment Income	$0.1117	89%	$0.6319	75%
Net Realized Short-	$0.0000	0%	$0.0350	4%
Term Capital Gains
Net Realized Long-	$0.0133	11%	$0.1747	21%
Term Capital Gains
Return of Capital or	$-	-%	$-	-%
Other Capital Sources
Total per Share	$0.1250	100%	$0.8416	100%

Fund Performance and Distribution Rate Information as of 11/30/2023

Average annual total return9 (in relation to the net asset value (NAV))	-7.06%
Annualized current distribution rate expressed as a percentage of month end NAV as of	10.17%10
11/30/2023
Cumulative total return11 (in relation to NAV (not annualized)) for the fiscal year end through	-3.80%
11/30/2023
Cumulative fiscal year distributions as a percentage of NAV as of 11/30/2023	4.86%12

1. Represents the annualized total return in relation to the change in NAV from inception (10/27/2021) through 11/30/2023.
2. Represents the current monthly distribution rate annualized as a percentage of NAV as of 11/30/2023.
3. Represents the cumulative total return in relation to the change in NAV for the current fiscal period 6/1/2023 through 11/30/2023.
4. Represents the cumulative distribution rate for the current fiscal period 6/1/2023 through 11/30/2023, which is determined by dividing the dollar value of distributions in the period by the NAV as of 11/30/2023.

October, November, December 2023 Distribution Information

You should not draw any conclusions about the Fund's investment performance from the amount of this distribution or from the terms of the Fund's Distribution Policy.

Please note: The amounts and sources of distributions reported in this 19(a) Notice are only estimated and are not being provided for tax reporting purposes. The actual amounts and sources of income of the amounts for tax reporting purposes will depend on the Fund's investment experience during the remainder of its fiscal year and may be subject to changes based on tax regulations. The Fund will send you a Form 1099-DIV for the calendar year that will tell you how to report these distributions for federal income tax purposes.

For questions regarding this notice, or for more information regarding MainStay CBRE Global Infrastructure Megatrends Term Fund, please contact your investment advisor, or call New York Life Investments at 855-456-9683.

Neither New York Life Investment Management LLC, its affiliates, nor its representatives provide tax, legal, or accounting advice. Please contact your own tax advisors.

"New York Life Investments" is both a service mark, and the common trade name, of certain investment advisors affiliated with New York Life Insurance Company. The MainStay Funds® are managed by New York Life Investment Management LLC and distributed by NYLIFE Distributors LLC, 30 Hudson Street, Jersey City, NJ 07302, a wholly owned subsidiary of New York Life Insurance Company. NYLIFE Distributors LLC is a Member FINRA/SIPC.

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