Every founder who has filled out the YC application has Googled the same thing at 1 a.m.: what is the acceptance rate? The answer most people land on — '1%' — is technically close, but it hides almost everything that actually matters.
The headline number
YC has stated multiple times that they typically receive 15,000 to 25,000 applications per batch and accept roughly 200–250 companies. That puts the raw acceptance rate at roughly 1.0% to 1.5% per batch.
If you filter for completed, two-founder, software-shaped applications with a working demo, founders who have been accepted estimate the realistic rate is closer to 3–5%.
Acceptance has trended down as YC has scaled up
| Year | Batch | Companies funded | Notes |
|---|---|---|---|
| 2005 | Summer | 8 | First-ever batch. |
| 2010 | Summer | 36 | Airbnb is a YC alum at this point. |
| 2014 | Winter | 85 | Sam Altman becomes president. |
| 2016 | Summer | 120 | First time over 100 companies. |
| 2021 | Winter | 414 | All-time high — fully remote pandemic batch. |
| 2023 | Winter | 282 | Garry Tan returns YC to in-person. |
| 2024 | Summer | 256 | |
| 2025 | Spring | 240 | YC moves to 4 batches per year. |
Where your odds are quietly higher
- RFS-aligned ideas. Partners openly admit to filtering for RFS themes during reading week.
- Technical founders building hard things. Hardware, biotech, defense and crypto founders compete in much smaller pools.
- Repeat founders. YC funds second-time founders at a higher rate.
- Founders with a working demo. A 60-second Loom moves applications from 'maybe' to 'interview'.
Key takeaways
- Headline acceptance rate is ~1–1.5%. Realistic rate for serious applicants is 3–5%.
- Batch sizes peaked at 414 in W21 and have since shrunk back to 240–280.
- Building inside a current RFS theme is the single highest-leverage edge.
- A working demo Loom outperforms every other application asset.