How to Apply to Y Combinator (2026): Batches, Deadlines and the Deal

Y Combinator (YC), the San Francisco startup accelerator, invests $500,000 in every company it accepts and now runs four batches a year. As of 9 November 2026, its official apply page lists Winter 2027 as the current batch, and the on-time deadline has just passed, but late applications are still being considered. This guide explains how the application works, what the standard deal means for your equity, and what YC itself says makes an application stand out, using only YC’s own pages.

When are the Y Combinator batches and deadlines?

YC moved to four batches a year in 2025, adding Spring and Fall to its long-running Winter and Summer programmes. In a January 2025 blog post, managing director Dalton Caldwell said more frequent batches make it more likely the timing works for founders.

Here is the current schedule as shown on YC’s apply page on 9 November 2026:

Item	Detail (as of 9 November 2026)
Current batch	Winter 2027
Batch dates	January to March 2027, in San Francisco
On-time deadline	2 November 2026, 8pm Pacific time (passed)
Decisions for on-time applicants	By 11 December 2026
Interviews	Mostly by video call in November and December
Late applications	Accepted, but YC cannot promise when it will respond
Future batches	Spring, Summer and Fall, via Early Decision

YC’s FAQ adds that late applicants usually hear back within about a month, though that is not guaranteed. If you are not ready for Winter 2027, the apply page lets you sign up for a reminder about the next batch.

How does the Y Combinator application process work?

YC describes four stages:

1. Apply online. Fill in the application at apply.ycombinator.com. Only one application per batch is allowed, and you cannot edit it after submitting; if something important changes, YC has a separate update form.
2. Get invited to interview. If the application looks promising, YC asks you to an interview.
3. Interview. This is usually held by video conference.
4. Hear the decision. YC says decisions normally come the same day as the interview, with detailed feedback. Its FAQ notes that only applicants invited to interview receive feedback.

YC states that it reviews every application equally and does not rely on introductions, so you do not need a referral.

Who can apply to Y Combinator?

According to YC’s FAQ, any startup anywhere in the world can apply. Key points:

• Idea-stage companies are welcome. Around 40% of each batch is “just an idea”, YC says.
• Companies with revenue or funding can apply too. About 7% of recent batches had more than $50,000 in monthly revenue when accepted, and many companies in each batch had already raised over $1 million.
• Solo founders are allowed, but YC calls one-person startups tough and runs a free co-founder matching service.
• Technical founders matter. For most businesses, YC wants a founder who can build the product.
• Students and employees can apply, but founders must work on the company full-time during and after the batch.
• International founders do not need to incorporate in the US or get a visa before applying. YC invests in US, Canadian, Cayman Islands and Singapore companies and helps accepted startups set up a parent company in one of those places.

Students who want to finish their degree first can use Early Decision: they apply now, choose a later batch (the most common route is applying in the autumn of the final year and joining the next summer batch), and YC funds them immediately while holding their place.

The batch itself is in person in San Francisco and begins with a three-day retreat. After the programme, founders can live wherever they like. If you are building in Pakistan, our guide on how to register a company with the SECP covers the local side of incorporation.

What is the Y Combinator standard deal?

YC’s standard deal page sets out a $500,000 investment made through two SAFEs (simple agreements for future equity), signed at the same time:

Part	Amount	Terms
Post-money SAFE	$125,000	Converts into 7% of the company, including any existing option pool
MFN SAFE	$375,000	Uncapped, with most-favoured-nation terms: it takes the best terms (such as the lowest cap) of any SAFE the company issues before its priced round

How much equity the second SAFE ends up as depends on your later fundraising. YC’s own example shows that if a company later raises on a SAFE with a $15 million post-money cap, the $375,000 converts to about 2.5%, on top of the fixed 7%.

The deal also includes a YC Agreement with a pro rata right to invest in future rounds. YC says the money is not tied to milestones, it commits on the day a company is accepted rather than when the batch starts, and it charges no fees to take part. The apply page adds that accepted companies get more than $12 million in free credits and deals from partner companies.

Pros and cons of the YC deal

Pros: $500,000 arrives early with no milestones; founders can spend it on anything that helps the company, including salaries; access to YC’s partners, network and partner deals; no fees to participate.

Cons: a fixed 7% is a meaningful slice of an early company; the uncapped MFN SAFE adds further dilution that is hard to predict in advance; the programme requires full-time commitment and in-person attendance in San Francisco.

Tips: what does YC say it looks for?

YC publishes its own advice, mainly Paul Graham’s essay “How to Apply to Y Combinator” and its FAQ. The main lessons:

• Say what you do in the first sentence, in plain words. Reviewers read hundreds of applications, so cut marketing language and vague claims.
• Show what the founders have built. Give one or two specific, impressive things each founder has done rather than general praise.
• Explain your insight. Say what you understand that competitors do not; “we will execute better” is not an insight.
• Name the obstacles and how you plan to deal with them.
• Record the one-minute video properly. YC wants all founders on camera, speaking from bullet points rather than a script. It says it wants to hear how founders communicate, not see a demo or a promotional pitch.
• Show progress if you reapply. YC’s FAQ says roughly half of a typical batch applied more than once, and progress since the last application is a strong signal.

FAQ

Is it too late to apply to Y Combinator Winter 2027?

The on-time deadline was 2 November 2026, but YC still considers late applications. It simply cannot promise a response date.

Does Y Combinator charge an application fee?

No fee is mentioned on YC’s apply page, and the deal page says YC charges no fees to participate.

Do I need to move to San Francisco?

For the three-month batch, yes. YC says it has run the programme in person since 2022. Afterwards, founders can live anywhere.