K-1 timing: what LPs should expect from their SPV
Why K-1s are usually delayed past April 15, what LPs and sponsors should do about it, and how modern SPV platforms make the timeline less painful.
K-1s are the partnership tax form an SPV issues each LP for their share of partnership income, deductions, and credits. For most LPs investing in SPVs for the first time, the timing is the biggest surprise.
Why K-1s arrive late
An SPV cannot file its own partnership tax return until the underlying portfolio company finalizes its tax data. Underlying companies usually need until summer to close their books. As a result, most SPVs file extensions on March 15 (the partnership return deadline) and issue K-1s to LPs by September 15.
What LPs should do
LPs should file their personal returns on extension if they hold material SPV positions. Sponsors should communicate the expected K-1 timeline at subscription so LPs aren't surprised. Some LPs also benefit from quarterly estimated taxes if the underlying generates current-year income.
What modern platforms do
RocketBook surfaces K-1 status in the investor portal: filed, in-progress, expected date. Fund administration partners produce K-1s on a defined cadence, and LPs receive notifications when their K-1 is available — no chasing.