The acceptance email usually leads with one number: $400,000, or $150,000, or $1 million. The documents that follow tell a fuller story. There's a fixed percentage, sometimes a second instrument whose cost won't be known until your next round, occasionally a program fee, and a few conditions that only show up in the fine print.
None of this is hidden. It's just easy to skim past when you're excited about getting in.
This guide covers how much equity accelerators take in 2026, the agreements behind those numbers, the conditions attached, and how to work out what a deal will cost you before you sign it.
Do Startup Accelerators Take Equity?
Most do. The top equity-based accelerators take between 5% and 10% of your company in exchange for an upfront investment, with 6% to 7% the most common range. A smaller group, including MassChallenge, Google for Startups Accelerator, and Plug and Play's core program, take no equity at all.
The percentage is only part of the deal. Many programs now pair a fixed-percentage investment with a second instrument that converts later or invests in your next round, which means your total dilution depends on what happens when you raise again.
How Much Equity Do Top Startup Accelerators Take?
| Accelerator | Total investment | Fixed equity | Structure | Notable condition |
|---|---|---|---|---|
| Y Combinator | $500K | 7% | $125K post-money SAFE + $375K uncapped MFN SAFE | Same deal for every company |
| South Park Commons Founder Fellowship | $1M | 7% | $400K on a standard SAFE + $600K guaranteed in your next external round | Fellows are funded the day they sign, before the program starts |
| a16z Speedrun | Up to $1M | 10% | $500K SAFE upfront + $500K follow-on within 18 months | Follow-on invests on your next lead investor's terms |
| Techstars | $220K | 5% | $20K convertible equity agreement + $200K uncapped MFN SAFE | Asia-Pacific programs: $120K total |
| 500 Global | $150K | 6% | Convertible security | $37,500 program fee deducted, so $112,500 net cash |
| Entrepreneurs First | Up to $250K | 8% | $125K post-money SAFE + optional $125K MFN SAFE | Second tranche requires a Delaware C-Corp and relocation to San Francisco |
| Alchemist | About $25K to $36K | About 5% | Common equity | Tuition netted against the investment, so net cash is lower |
| HF0 Residency | $1M (last published) | 5% (last published) | Uncapped SAFE | Terms removed from HF0's site in late 2025, so confirm directly |
| PearX | $250K to $2M by stage | Not published | Not published | Requires Bay Area relocation |
| Antler | Varies by region | Varies | Region-specific | Investment decided after the residency, not at acceptance |
Terms change, sometimes between batches. Treat this as a starting point and confirm the current deal on each program's official site before applying. For a broader dilution comparison, see the accelerator equity and dilution guide.
What Each Point of Equity Is Worth
Comparing headline percentages hides how differently programs price your company. Dividing the fixed-equity check by the percentage shows what each point of ownership buys and the valuation it implies.
| Accelerator | Fixed-equity check | Equity | Price per 1% | Implied post-money valuation |
|---|---|---|---|---|
| South Park Commons | $400K | 7% | About $57K | About $5.7M |
| a16z Speedrun | $500K | 10% | $50K | $5M |
| 500 Global | $150K | 6% | $25K | $2.5M |
| Y Combinator | $125K | 7% | About $17.9K | About $1.8M |
| Entrepreneurs First | $125K | 8% | About $15.6K | About $1.6M |
| Alchemist | About $36K | About 5% | About $7.2K | About $720K |
| Techstars | $20K | 5% | $4K | $400K |
This table covers only the fixed-equity portion. The uncapped MFN SAFEs at YC, Techstars, and EF aren't included because their price depends on your next round's valuation. A low price per point doesn't make a program a bad deal either: Techstars' small fixed check sits alongside a $200K SAFE, mentorship, and network access. It simply shows what the fixed piece costs.
The Agreements Behind Accelerator Equity
Accelerators rarely issue shares on day one. Most use convertible instruments that turn into equity at a later priced round. Knowing which one you're signing tells you what you're giving up.
Post-money SAFE with a fixed percentage
A post-money SAFE (Simple Agreement for Future Equity) locks in a specific ownership percentage. YC's $125,000 for 7%, SPC's $400,000 for 7%, and EF's $125,000 for 8% all work this way. You know the percentage the day you sign, and it converts into shares at your next priced round.
Uncapped MFN SAFE
This is the instrument founders most often underestimate. An uncapped SAFE with a Most Favored Nation clause has no valuation cap. It converts on the best terms you give any investor in your next round. YC's $375,000 and Techstars' $200,000 both use this structure, so the percentage they cost isn't known at signing.
Guaranteed next-round investment
SPC's $600,000 and Speedrun's second $500,000 work differently from an uncapped SAFE. The money is committed now but invested in your next external round on that round's terms. It buys equity at your future valuation rather than today's, and it fills part of your next round before you start pitching.
Convertible equity agreement
Techstars uses a post-money convertible equity agreement (CEA) for its $20,000 tranche, which converts into a fixed 5% of common stock. It's another way of locking in a known percentage for a small initial check.
Common equity
Some programs, such as Alchemist, take common stock directly rather than a convertible instrument. You see the dilution on your cap table immediately instead of at your next round.
Program fees and tuition
Some accelerators charge for the program and net the fee against your check. 500 Global's $37,500 fee comes out of its $150,000, so $112,500 reaches your bank account while the equity is priced on the full amount. Alchemist nets tuition against its investment the same way.
Follow-on and pro rata rights
Many deals let the accelerator invest again later. 500 Global holds a right to invest after the program. These rights help the accelerator keep its ownership as you grow, and they take up space in your next round's allocation.
How the Math Works: Three Examples
Example 1: Y Combinator's two-part deal
- At signing: $125,000 buys a fixed 7%
- At your next round: the $375,000 uncapped MFN SAFE converts at that round's terms
- If you raise at a $15M post-money valuation: the $375,000 converts into roughly 2.5%
- Result: YC's combined stake lands near 9.5% before that round's new investors dilute everyone
Raise at a higher valuation and the second SAFE costs you less. Raise lower and it costs you more. The 7% is fixed. The rest isn't.
Example 2: South Park Commons' guaranteed follow-on
- At signing: $400,000 buys 7% on a standard SAFE, an implied valuation near $5.7M
- At your next external round: SPC invests $600,000 on that round's terms
- If you raise a $3M seed at a $15M post-money valuation: SPC's $600,000 is 20% of the round and buys about 4% of the company
- Result: SPC owns more after your seed, and your new lead investor has $2.4M left to fill instead of $3M
The guaranteed capital is a real advantage when you pitch. It also means less allocation for new investors, which is worth discussing early with whoever leads your round.
Example 3: 500 Global's program fee
- Headline: $150,000 for 6%, implying a $2.5M post-money valuation
- Program fee: $37,500 deducted
- Cash received: $112,500
- Effective trade: 6% of your company for $112,500 in usable capital, plus the program itself
None of these makes a deal good or bad. They show why the headline number and the real cost can differ.
Conditions That Come With Accelerator Deals
The equity percentage gets the attention. The conditions often matter just as much:
- Diligence before funding: most offers are subject to standard terms and diligence, so acceptance isn't a signed deal
- Incorporation requirements: many US deals expect a Delaware C-Corporation, and EF requires one before releasing its second tranche
- Relocation: a16z Speedrun requires 12 weeks in person in San Francisco, PearX requires Bay Area relocation, and EF's second tranche depends on moving to San Francisco
- Investment timing: Antler decides whether to invest at the end of its residency, and historically only 20% to 45% of a cohort receives investment
- Future-round commitments: SPC's $600,000 and Speedrun's second $500,000 depend on your next round happening
- Unpublished terms: PearX doesn't publish its equity, and HF0 removed its terms from its site, so ask for the term sheet before you invest time in applying
- No equity if no deal: at programs like Antler, if the investment committee passes, you keep 100% of your company
Accelerators That Take No Equity
Equity-free programs trade dilution for a smaller check or none at all. Value comes through mentorship, credits, prizes, or corporate access.
| Program | What you get | The trade-off |
|---|---|---|
| MassChallenge | Mentorship, corporate partners, and up to $100K in competitive cash prizes, with no fees | Prize money isn't guaranteed |
| Google for Startups Accelerator | Technical mentorship and Google Cloud credits | No direct investment |
| Plug and Play | Corporate partnerships and pilots through its core program | Investment, if any, comes separately through its ventures arm |
| South Park Commons Member Residency | SPC's community and support while you explore ideas | No funding until you join the Founder Fellowship |
| StartX | Stanford-affiliated founder community and support | Eligibility limited to the Stanford network |
These programs work best for founders who already have investor access and need structure, partners, or infrastructure more than a check.
Is Giving Up Accelerator Equity Worth It?
Accelerator equity is the cheapest your company will ever be priced. Whether that's a good trade depends on what the program unlocks for you right now.
It's usually worth it when:
- The program gives you investor access you can't reach through your own network
- The brand meaningfully improves your next round's terms or speed
- You need capital and structure at a stage when no one else will fund you
It's often not worth it when:
- You already have strong investor interest and a clear path to a seed round
- What you need is product or engineering capacity, which an accelerator batch doesn't provide
- The program's network is weak in your sector or region
For a deeper look at reasonable dilution across early rounds, read how much equity is reasonable.
Questions to Ask Before Signing an Accelerator Deal
- What is the fixed percentage, and what instrument secures it?
- Is there an uncapped or MFN SAFE, and what will it cost at a realistic next-round valuation?
- Is any capital committed to your next round, and how much allocation will it take?
- Is there a program fee or tuition, and is it deducted from the investment?
- Does the accelerator hold follow-on or pro rata rights?
- What conditions apply: incorporation, relocation, diligence, or a decision after the program?
- What does your cap table look like after your next round, with every instrument converted?
If you can't answer all seven, model the deal before you sign. A simple spreadsheet with your expected seed valuation is enough to see the real number.
For program-specific comparisons, see Techstars vs Y Combinator, Y Combinator vs a16z Speedrun, and Antler vs Y Combinator.
Build Leverage Before You Give Up Equity
The founders who get the best accelerator outcomes aren't the ones who read term sheets most carefully. They're the ones who arrive with enough traction that the accelerator needs them as much as they need the program, or who build far enough on their own that they can skip it.
Ellenox works with early-stage founders to validate the problem, build an investor-ready MVP, and generate the traction that makes either path stronger. If you're weighing an accelerator offer, or deciding whether you need one at all, talk to Ellenox.