X0708 D LIVE 0002130136 Hudson Housing Tax Credit Fund CXXI LP 630 FIFTH AVE. 28TH FLOOR NEW YORK NY NEW YORK 10111 2122184488 DELAWARE None None Limited Partnership true 2025 Hudson GP CXXI LLC 630 Fifth Avenue 28th Floor New York NY NEW YORK 10111 Executive Officer General partner of filer. Joseph A Macari 630 Fifth Ave. 28th Floor New York NY NEW YORK 10111 Executive Officer John S Zeiler 630 Fifth Avenue 28th Floor New York NY NEW YORK 10111 Executive Officer Sam A. Ganeshan 630 Fifth Avenue 28th Floor New York NY NEW YORK 10111 Executive Officer Pooled Investment Fund Other Investment Fund false Decline to Disclose 06b false 2025-12-23 true true false 8391991 Hudson Housing Securities LLC 103861 None None 630 Fifth Avenue 28th Floor New York NY NEW YORK 10111 NJ NEW JERSEY NY NEW YORK false Indefinite 8391991 Indefinite false 1 80508 0 631232 false Hudson Housing Tax Credit Fund CXXI LP Joseph A Macari Joseph A Macari Managing Director of GP, Hudson GP CXXI LLC 2026-07-31