The HF0 residency application in 2026: the real selection bar

The HF0 residency application starts as a short contact form at hf0.com/apply, and HF0 publishes no eligibility checklist or scoring rubric. The real bar is evidence that you shipped something people actually used, usually as a repeat technical founder, plus willingness to live on site for the whole batch.

Most accelerator guides walk you through a form. For HF0 the form is the least interesting part, because the decision is made on things the form never asks about.

HF0 positions itself as a residency for repeat founders rather than a conventional broad-based startup accelerator, per HF0's homepage. That is a filter, not a tagline. HF0 says it backs only 10 teams at a time, per the HF0 facts page, so the people you are competing with have usually already built something that worked.

The HF0 application process in 2026, step by step

There is no long written application, so nearly all of the selection happens on evidence you bring from outside the form.

1. Check the current cycle on HF0's own site. HF0 runs batches, and its site is the only reliable place to confirm whether a cycle is open. Do not trust a directory listing that says applications are live.
2. Assemble your shipped-product evidence first. Pull the usage numbers, the revenue line, the repo, the launch post. This is what the decision turns on.
3. Submit the contact form at hf0.com/apply. The public application page begins with a short contact form and discloses no eligibility checklist or selection rubric, per HF0's application page. Do not read that as informality.
4. Lead with the thing you built, not the thing you plan to build. One sentence on the artifact, one on who used it, one on the number.
5. Resolve the relocation question with your co-founder first. If one of you cannot live on site for the batch, find out now rather than in the final conversation.
6. Ask the Director of Admissions for the current terms in writing. HF0 staffs a dedicated Director of Admissions, per the HF0 team page. Terms are not published, so asking is the only way to know.
7. Run your fundraise on its own timeline in parallel. With 10 slots per batch, a strong application is still a low-probability event.

What the HF0 residency actually is

HF0 is a small, on-site, fixed-length residency, not a broad educational program. Crunchbase lists HF0 as an on-site accelerator with a 12-week duration and 21 investments across 2 funds, per the Crunchbase HF0 Residency profile. HF0's facts page says it backs only 10 teams at a time, per the HF0 facts page.

The published cohort outcomes tell you more about the selection bar than any application advice does.

Source: HF0 facts page.

Read that table as an admissions document. A cohort where four of ten teams clear millions in revenue by demo day is not a cohort of idea-stage founders.

The real selection bar: how to get into HF0

The bar is a track record of shipping, not an idea. HF0 publishes no rubric, so you are making one claim credible: you built something people used, and you will do it again faster in a house full of people like you.

✅ Good: "I built [product], [N] people used it weekly, we reached [$X] in revenue in [N] months, and here is the repo." Verifiable, and it settles the only question HF0 has to resolve about you.

❌ Bad: "I am a technical founder passionate about AI infrastructure and I have been thinking about this space for a while." No artifact, no user, no number, nothing anyone can check.

Do not lead with the market. Every applicant has a large market. Almost no applicant has a thing strangers used without being asked to. If your strongest sentence is about TAM, you are applying to the wrong program.

The live-in requirement most applicants underestimate

The residential format disqualifies more otherwise-strong teams than the idea ever does. Crunchbase classifies HF0 as an on-site accelerator running 12 weeks, per the Crunchbase HF0 Residency profile, and HF0 staffs a House Manager and a Director of Operations and Events alongside its program and admissions leads, per the HF0 team page. That is the staffing pattern of a managed residential experience, not a lightweight online cohort.

HF0 does not publish a written attendance policy, so the exact requirement is not published. Treat that as a reason to ask, not a reason to assume flexibility. If a co-founder has a lease, a family, or a visa situation that makes 12 weeks in a house impossible, resolve it before you apply. An unrehearsed answer there reads as low commitment.

HF0 accelerator terms and HF0 equity: what is actually published

HF0 does not publish its investment terms on its own site, and you should treat every number you read elsewhere as unconfirmed. Directory listings and accelerator round-ups circulate a headline figure for HF0 equity and check size. It does not appear on HF0's facts, homepage, or application pages, and the application page opens with a short contact form rather than a term sheet, per HF0's application page.

The only HF0 term that matters is the one in the document they send you. Everything on a comparison table is somebody else's cycle.

What is published is the shape of the program, and the shape is what you are buying:

• Cohort size: 10 teams at a time, per the HF0 facts page. A peer group that small is the product.
• Format and portfolio: 12 weeks on site, with 21 investments across 2 funds, per the Crunchbase HF0 Residency profile.
• Staffing: dedicated admissions, program, house, and operations leads, per the HF0 team page.

The trade against a standard accelerator is concentration: not a curriculum or a mentor marketplace, but housing, removed logistics, and nine other teams selected on the same shipping bar.

Who HF0 is not for

Say no to yourself before HF0 does, and spend the quarter on something better.

• Idea-stage founders with nothing shipped: the published cohort revenue figures describe a room full of working products. An unbuilt idea has nothing to argue with.
• Anyone who cannot relocate: on-site for 12 weeks is the format, and there is no part-time track.
• Founders who want a broad curriculum: HF0 positions itself as a residency for repeat founders, not general startup education, per HF0's homepage.

When this matters for your raise

HF0 backs 10 teams at a time, per the HF0 facts page, so even a strong application is a low-probability event and should never be your funding plan. Most founders applying here are raising either way, and the ones who do not get in still need a round. Causo matches you to the investors most likely to fund your stage and sector and drafts the outreach, so a rejection does not cost you a quarter.

If you are building a shortlist of residencies rather than betting on one, the South Park Commons application, the Sequoia Arc application, and the a16z Speedrun application select on different evidence.

Worth checking before you apply anywhere: what each accelerator takes in equity, 2026 accelerator application deadlines and published accelerator acceptance rates. For a contrasting program structure, see the South Park Commons application.

Run the raise in parallel

Applying is not a funding plan. Programmes like this one accept a small share of applicants and run on their own calendar, so the founders who come out ahead are the ones who kept a funding process moving while they waited. HF0 takes ten teams at a time, so the odds argue for a parallel funding process regardless of how strong your application is.

Start from the funds most active at seed this quarter and work the list while your application sits in the queue. If you get in, you arrive with warm conversations already running. If you do not, you have not lost a quarter.

FAQ: applying to the HF0 residency in 2026

What is the HF0 residency program? HF0 is a live-in residency that backs 10 teams at a time, according to its own facts page. Crunchbase classifies it as an on-site accelerator with a 12-week duration. HF0's homepage positions it as a residency for repeat founders rather than a conventional broad-based startup accelerator.

How do you get accepted into HF0? HF0 does not publish a selection rubric, so the decision rests on evidence you bring rather than on form answers. The public application page opens with a short contact form and no eligibility checklist. The strongest signal is a product you shipped that people used, backed by numbers you can defend in conversation.

Do you have to live in the HF0 house? HF0 is built as a residential program: Crunchbase lists it as on-site over 12 weeks, and HF0 staffs a House Manager plus a Director of Operations and Events. HF0 does not publish a written attendance policy, so the exact requirement is not published. Plan for full-time in-person presence and confirm the specifics with admissions before committing.

How much equity does HF0 take? HF0 does not publish its investment terms on its own site, so the honest answer is that the terms are not published. Directory listings circulate a headline figure, but it does not appear on HF0's facts, homepage, or application pages. Ask the Director of Admissions for the current cycle's terms in writing before you plan dilution around a number.

Is HF0 only for repeat founders? HF0's homepage positions the program as a residency for repeat founders rather than a broad-based accelerator, and its published cohort outcomes skew toward teams already producing revenue. HF0 does not state a formal ban on first-time founders. A first-time founder with a shipped product that people used at scale is arguing the same case a repeat founder argues.

Related on the hub

• How to apply to PearX in 2026: the cornerstone guide — Related accelerators guide.
• How to apply to 500 Global in 2026 — Related accelerators guide.
• How to apply to Sequoia Arc in 2026 — Related accelerators guide.