Early access: the first 50 companies file free, for life

filefast is in early access. It prepares a Corporation Tax return for a small UK limited company — the CT600, the tax computation and the accounts, all in the iXBRL format HMRC requires — and files it directly with HMRC through their live gateway. It is built for the company the old free HMRC service was built for: one trade, UK income, no group.

The offer is simple. The first 50 companies to have a CT600 accepted by HMRC through filefast keep filing their CT600 for free, for as long as filefast exists. Not a trial, not a discount, not "free until we change our minds". Fifty companies, then the door closes for new ones and the fifty stay free.

What "early access" means, honestly

• Filing is live. Returns go to HMRC's production gateway and HMRC's acceptance or rejection is the real one. Nothing is simulated.
• We are small and new. No company outside our own has filed through filefast yet. You would be among the first, and I will be watching every submission personally.
• filefast is not yet on HMRC's list of commercial software suppliers. Recognition is optional — it does not change what HMRC accepts — and we will apply once early-access filings are through. Until then, judge us by the accepted returns.
• Scope is narrow on purpose. One trade, UK income, standard capital allowances, losses carried forward. Groups, R&D relief, property or overseas income are not supported yet — filefast tells you before you start rather than after.
• Companies House is separate. filefast files with HMRC. Your annual accounts still go to Companies House, where their web service remains free.

The terms, in plain words

1. It counts companies, not people. One company, one place in the fifty.
2. A place is taken when HMRC accepts the company's CT600 filed through filefast — not when you register.
3. Free means the CT600 return: preparation, computation, accounts in iXBRL, and submission. Anything we build later is a separate product with its own terms.
4. The place belongs to that company and cannot be moved to another.
5. When the fiftieth return is accepted, early access ends for new companies. The fifty keep their place.

Why do this

Two reasons, and neither is charity. The first fifty real returns are how filefast proves itself — to HMRC, to me, and to the next thousand directors. And the directors who trust a new tool with their return deserve something better than a discount code.

What to do

Add your company from the Companies House register, enter the year's figures, and file. If your return is due in the next few months, you are exactly who this is for.

Start your return

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Matvei Kostiuchenko, founder of filefast. Not an accountant. This page describes the service and its terms; it is not tax advice.