Updated February 2026. The Fall 2025 batch has now closed. YC is currently accepting late applications for Spring 2026, with Summer 2026 applications opening around March.
Y Combinator runs multiple batches per year, and 2026 is no different.
The Spring 2026 batch on-time deadline passed on February 9, but YC is still accepting late applications with decisions expected by March 13. The Summer 2026 batch applications are expected to open around March.
Whichever batch you're targeting, here's everything you need to know to maximise your application's success.
Key Dates You Cannot Miss
Here's where things stand across the 2026 batches:
| Batch | Status | Key Dates |
|---|---|---|
| Spring 2026 (X26) | Late applications open | On-time deadline passed Feb 9 — decisions by March 13 for those who applied on time. Late apps still considered |
| Summer 2026 (S26) | Applications opening ~March | Deadline projected for ~May 2026 |
| Fall 2026 (F26) | Not yet open | Deadline projected for ~August 2026 |
If you're ready now, submit a late Spring 2026 application — YC explicitly states they still consider them, just without a guaranteed timeline. Otherwise, use the time to strengthen your metrics and traction ahead of the Summer 2026 deadline.
The Application Process: What to Expect
Step 1: Submit Your Online Application
Don't wait until the last minute. YC encourages submitting as soon as you're ready, and there's no advantage to waiting. Your application needs to clearly communicate your vision, traction, and why your team is uniquely positioned to succeed.
Step 2: The Waiting Game
If you applied by the deadline, you'll know your fate by September 5. This quick turnaround is one of YC's strengths, they respect founders' time and understand the urgency of startup decisions.
Step 3: The Interview
If your application stands out, you'll be invited to interview via video conference.
Most interviews happen in August and September. Here's what makes YC interviews special: they typically make decisions the same day, and every founder gets detailed feedback regardless of the outcome.
Step 4: Immediate Investment
Unlike some programs that wait to deploy capital, YC invests in accepted companies immediately upon acceptance. This means you can start benefiting from their network and resources right away.
What Makes the YC Experience Unique
Small Groups, Big Impact
YC operates on a "house model" similar to universities.
You'll be placed with an autonomous group of companies. You'll have weekly dinners with this group, building relationships that often last a lifetime. Many founders report that their YC group becomes like family.
Direct Access to Legendary Founders
During the batch, you'll hear from the founders of companies like Airbnb, Stripe, DoorDash, and Reddit. These aren't polished conference talks. They're inside stories about the early days, failures, and breakthroughs that shaped these billion-dollar companies.
Your Dedicated General Partner
Every YC company works with a dedicated General Partner who personally hand-selects their group. These are successful founders themselves who have advised hundreds of startups. You'll have direct Slack access and weekly meetings with your partner.
The YC Alumni Network: Your Lifelong Asset
The YC alumni community is often described as one of the most powerful networks in the world. This isn't just marketing speak, YC alumni have a genuine commitment to helping each other.
Whether you need technical advice, business development help, or just someone who understands the founder journey, the network is there.
Toward the end of the batch, YC helps companies raise additional funds through their extensive investor network. This is also about strategic introductions that align with your specific needs and timeline.
YC's support doesn't end when the batch concludes. They continue helping founders throughout the life of their companies and beyond. This long-term commitment is part of what makes YC different from other accelerators.
Preparing Your Application: Key Considerations
Be Ready to Commit: The batch requires in-person participation in San Francisco. Make sure you can relocate for the duration if you're not already in the Bay Area.
Focus on Traction: YC looks for companies that are already making something people want. Come prepared with clear metrics and user feedback.
Team Matters: YC invests in teams as much as ideas. Be prepared to articulate why your specific team is uniquely qualified to solve your chosen problem.
Think Long-term: YC is looking for companies with the potential to become very large. Make sure your vision aligns with this expectation.
If you have questions about your application, you can reach out to YC via email. For those not ready for the Fall 2025 batch, you can sign up for reminders about future application cycles.
Y Combinator has helped launch companies worth hundreds of billions of dollars.
A 2026 batch could be your opportunity to join this exclusive group. The key is to apply as early as possible, be thoroughly prepared, and make sure you can commit fully to the in-person programme in San Francisco.
The Pocket Guide of Essential YC Advice 📙 pic.twitter.com/flwwSdXwHP
— Y Combinator (@ycombinator) April 12, 2023
Remember: YC's motto is "Make something people want." If you're already doing that and looking to scale, your YC application could be the catalyst that transforms your startup into the next billion-dollar success story.
Ready to apply? Head to ycombinator.com/apply to submit a late Spring 2026 application or register for reminders about the Summer 2026 batch. Don't wait — the best time to start preparing is always now.
