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Accelerator & incubator deadlines · Accelerator

Y Combinator application deadline · Winter 2027

Y Combinator Winter 2027 applications close on November 2, 2026 (8pm PT; decisions by Dec 11).

Y Combinator

Winter 2027 · Accelerator · San Francisco

$125K for 7% plus a $375K uncapped MFN SAFE; late applications are still read, with no set reply date.

Deadline
November 2, 2026 · 8pm PT; decisions by Dec 11
Investment
$500K
Equity
7% + uncapped MFN SAFE
Stage
Idea, Pre-seed, Seed
Format
In person
Program
January to March 2027, San Francisco
Sectors
Generalist

Frequently asked

When is the Y Combinator application deadline?

Y Combinator Winter 2027 applications close on November 2, 2026 (8pm PT; decisions by Dec 11).

How much does Y Combinator invest, and for how much equity?

$500K. Equity: 7% + uncapped MFN SAFE. $125K for 7% plus a $375K uncapped MFN SAFE; late applications are still read, with no set reply date.

When does the Y Combinator Winter 2027 program run?

January to March 2027, San Francisco

Where is Y Combinator based?

San Francisco. Format: in person.

Dates come from this source and are checked and updated monthly. Confirm on Y Combinator's site before you apply.

Want the application to land?

Start with a 30-minute accelerator strategy session: which programs fit your stage and sector, whether to apply this cycle, and how your application reads. $199, refundable before the 15-minute mark, credited toward the Accelerator Sprint ($1,099) or Sprint Lite ($599).

Raising instead of, or as well as, applying? Book the 30-minute fundraising diagnostic: a straight read on your raise and a written plan within 24 hours. $199, refundable before the 15-minute mark.