What Y Combinator and Techstars Actually Take in 2026

Accelerator terms have changed repeatedly, and most of the numbers founders quote at each other are two or three revisions out of date. Both Y Combinator and Techstars now run two-part deals: a small cheque for a fixed slice of common or preferred, plus a much larger cheque on an uncapped safe whose price is set by a round you have not raised yet. Whether that is a good trade depends on arithmetic that neither programme puts on one page.

The current YC deal

Y Combinator’s published standard deal, as of 2026, is $500,000 in two instruments:

• $125,000 for a fixed 7% on a post-money safe. That implies a post-money valuation of about $1.79 million on that slice, which is the number people mean when they say YC is expensive.
• $375,000 on an uncapped MFN safe, which adopts the terms of the lowest-cap safe you issue after a specified MFN start date around the beginning of the batch. YC’s own example: at a $15 million post-money cap, the $375,000 converts into 2.5% of the company.

YC also takes a right to keep investing in later rounds. It charges no fees, commits on the day of acceptance, and states the investment is not contingent on hitting any milestones.

On YC’s own example numbers, the total is 9.5% for $500,000. But the MFN slice is genuinely open-ended: raise your next round at a $10 million cap and the $375,000 becomes 3.75%, for 10.75% in total. Raise at $30 million and it becomes 1.25%, for 8.25%. The better you do between Demo Day and your next safe, the cheaper YC gets.

The current Techstars deal

Techstars restructured in April 2025 and now invests $220,000:

• $20,000 on a post-money Convertible Equity Agreement for 5% of common stock, which converts on a priced round of at least $1 million.
• $200,000 on an uncapped MFN safe. Techstars’ worked example: a next round at a $20 million pre-money valuation makes that $200,000 roughly 1% more of the company.

Asia-Pacific programmes run a smaller version, $100,000 on the MFN safe for $120,000 in total. A side letter adds pro rata rights, digital-asset rights, drag-along provisions and ongoing reporting obligations on metrics and burn.

The comparison founders should actually run

Convert both deals into an implied valuation for the money. Assume, for comparability, that each programme’s MFN safe eventually adopts a $15 million cap.

Techstars takes less equity in absolute terms and hands over less than half the cash. YC’s fixed 7% for $125,000 is the most expensive component in either deal by a wide margin, and it is not negotiable. The relevant question is not which percentage is lower, it is whether either programme moves your next round’s valuation by enough to cover the difference.

What you are actually buying

Selection, and the signal that comes with it

YC publishes the numbers that matter here. Its Winter 2024 batch was 260 companies chosen from over 27,000 applications, an acceptance rate under 1%, which YC called one of the most selective cohorts in its history. Its Summer 2022 batch stats record 19,000 applications and 240 companies funded. Techstars said in its Techstars 2.0 announcement that most of its accelerator programmes had an acceptance rate below 1% in 2023, and set out a plan to invest in 700 to 800 companies across more than 50 accelerator programmes in more than 30 locations.

Those two sub-1% figures describe very different things. YC runs one funnel into one brand. Techstars runs dozens of separate programmes, each with its own funnel, so a sub-1% rate per programme does not aggregate into YC-level scarcity across the network. That distinction is most of what explains the difference in signalling value, and therefore most of what justifies YC’s price.

Programme mechanics

YC’s FAQ describes a three-month batch based in person in San Francisco, opening with a three-day retreat and running on weekly meetups, partner office hours and a dedicated group partner, ending in Demo Day. It now runs four batches a year, named Winter, Spring, Summer and Fall; at the time of writing the Winter 2027 on-time deadline is 2 November with decisions by 11 December. The batch also comes with more than $12 million in credits and partner deals from providers including AWS, Google Cloud, Azure, OpenAI, Anthropic and Stripe.

Techstars runs a three-month mentorship-driven programme structured as 13 weeks from orientation to fundraising, with perks it values at more than $4 million. Techstars says it has accelerated more than 10,900 founders since its first class in summer 2007, across more than 150 countries, with 29 unicorns in the portfolio.

The evidence on whether it works

The academic literature is more equivocal than the marketing. In “Do Accelerators Work? If So, How?”, Benjamin Hallen, Susan Cohen and Christopher Bingham compared ventures accepted and “almost accepted” to top accelerators. They found that some, but not all, of the early accelerators substantially aided venture development, alongside clear evidence of sorting, meaning part of the observed advantage comes from who gets in rather than what the programme does. They identify the active ingredient as “broad, intensive, and paced consultation” rather than capital or brand.

Read practically: the programmes that help are the ones that force weekly external accountability on a founder who would otherwise drift. If you already have that, from a strong board, an existing investor or a co-founder who runs a tight process, you are paying for signal alone.

When the deal is worth it, and when it is not

1. You are pre-seed with no network. This is the strongest case. A sub-1% acceptance rate is a credential that substitutes for warm introductions you cannot otherwise get, and 7% to 9.5% is a fair price for the first institutional cheque plus a functioning investor funnel.
2. You already have a term sheet at a reasonable valuation. Run the numbers before you accept. YC’s fixed slice alone costs 7% for $125,000; a seed round at a $12 million post-money cap sells 7% for $840,000. If you can raise, the accelerator equity is expensive capital and the case has to rest entirely on the network.
3. You are a second-time founder with distribution. The signalling benefit is smallest precisely where founders are most likely to be accepted. Consider it a bad trade unless you specifically want the peer cohort.
4. You are capital-intensive or deep tech. $220,000 to $500,000 does not change a hardware or biotech trajectory, and a three-month sprint fits software timelines. Look at programmes built for your cycle length.

The alternatives, including two Canadian ones

Creative Destruction Lab, which runs across 17 sites in 10 countries including Toronto, Vancouver, Calgary, Montreal and Halifax, uses a different mechanism: objectives-based full-day sessions with mentors every eight weeks, rather than a continuous cohort. Mentors are exited founders, angels and VC partners who often invest in ventures that hit their objectives. CDL’s programme page does not publish an equity stake or a fee, so ask directly and get it in writing before applying.

Beyond structured programmes, the non-dilutive route deserves a serious look for Canadian companies. The SR&ED programme pays a 35% enhanced investment tax credit to most Canadian-controlled private corporations on qualified expenditures up to an expenditure limit that rose from $3 million to $6 million for tax years beginning after 15 December 2024, and for qualifying CCPCs that credit is fully refundable on current expenditures. On a serious engineering payroll, that is accelerator-scale cash for no equity, and it recurs every year.

What to verify before you apply

Ask for the current form documents, not a summary. Both programmes have revised terms more than once, and third-party guides reproduce old numbers with confidence. Confirm the MFN start date, because it determines which of your future safes can re-price the accelerator’s cheque. Confirm what the side letter carries beyond pro rata, since Techstars’ includes drag-along and reporting obligations that outlive the programme. Then model the total percentage at three different next-round caps, because that range, not the headline number, is the deal you are signing.

Sources

• Y Combinator — The YC Deal
• Y Combinator — Meet the YC Winter 2024 Batch
• Y Combinator — Frequently Asked Questions
• Techstars — New $220,000 Accelerator Investment Terms
• Techstars — Investment Terms Update (17 April 2025)
• Techstars — Techstars 2.0: Supercharging Founder Success
• Hallen, Cohen and Bingham — Do Accelerators Work? If So, How? (SSRN)
• Creative Destruction Lab — Program