0001809541 2026-09-28 2026-09-28 0001809541 dei:BusinessContactMember 2026-09-28 2026-09-28 0001809541 false Yes 333-296758 811-23564 N-2 true false 1 true true 5 true BlackRock Capital Allocation Term Trust 100 Bellevue Parkway Wilmington DE 19809 800 882‑0052 John M. Perlowski 50 Hudson Yards New York NY 10001 From time to time after the effective date of this Registration Statement. false true true false false false false false false false true false false true false false