Nailing the YC application

Why this matters

YC accepts roughly 200 out of 20,000 applications a batch, about the top 1 percent, and most accepted teams have little or no revenue. So the application itself is doing a lot of the work. It's worth getting right.

What reviewers are looking for

YC's financial returns are driven by a tiny number of enormous outcomes, so they're really underwriting one question: could this become a truly massive company? For YC, that comes down to three things:

1. A to-be-massive, growing market.
2. A novel insight.
3. Incredible founders who are relentless and resourceful.

1. A to-be-massive market

The market doesn't have to be big today, but it has to be able to become massive, and you have to explain how. Airbnb, Uber, and Coinbase all started in markets that barely existed and then grew them. In fact, YC tends to prefer small markets growing explosively, often on the back of a new technology or regulatory shift, over big but stagnant ones.

2. A novel insight

Explain what recently changed that makes your company newly possible. Not a 2x better feature, but a non-obvious truth others have missed, unlocked by a shift in technology, regulation, or behavior. If the idea was possible for years and no one succeeded, reviewers assume it simply wasn't a good idea, so your "why now" has to be sharp and evidenced.

3. Relentless, resourceful founders

The best predictor of future success is past success, and the second best is how fast you're moving right now. Point to the genuinely impressive things your team has built, which don't have to be startups, and show speed: what you've shipped or figured out quickly. YC indexes hard on this.

Application craft

• Concision is half the battle. Write it long, then compress it until it's impossible to get bored reading.
• The founder video matters most. Sound sharp, obsessed, and persuasive. No script, no background music, and light on your face. They want your personality, not your editing.
• The 50-character description forces clarity. Compress your whole pitch to one line (Nest: "The thermostat that learns.").
• If you're a solo founder (about 10 to 20% of each batch), address your cofounder plan head-on.

We wrote a full, question-by-question walkthrough of the application. Use it alongside this lesson.

For the full, question-by-question walkthrough, see our YC application guide.