Sandbox mode. Keelaris is connected to HMRC's test environment while we complete production access. Keep records and see your figures today; filing to HMRC opens once HMRC approves us.

UK tax, end to end

UK tax, done properly. For firms and for you.

Firms run their whole practice on it. Everyone else gets their Self Assessment done, with a real accountant if you want one.

I run a practice I'm filing for myself
For accounting firms

Run your whole practice in one place.

  • 01Take the compliance grind off your desk, and keep the advisory work that actually needs you.
  • 02Every client, deadline and document in one system, under your own name.
  • 03Serve thousands, not hundreds, and keep the small clients everyone else is dropping.
  • 04File for every client from one place, reviewed and signed off by your team.
See it for firms
For individuals

Your Self Assessment, sorted.

  • 01Every deadline tracked for you, so nothing is ever late.
  • 02Every document in one place, not scattered across your inbox.
  • 03Do it yourself in minutes, or hand it over. Either way, a real accountant can check it before you file.
  • 04Free to start. Pay only when you file.
Start free
What's underneath

Less software. One system.

The tools a practice needs, and the tools a person needs, built on the same engine.

01
Deadline calendar
Every obligation pulled in automatically. The system chases, not you.
02
Document vault
Statements, receipts, filings. One place, per client, kept for good.
03
Filing to HMRC
Quarterly updates, returns and accounts, prepared by AI that keeps up with the rules, then submitted.
04
Review & sign-off
A qualified accountant checks and signs before anything is filed.
05
Website & email
An SEO-built site and clean name@yourfirm mailboxes, one bundle on your own domain.
06
Marketing & leads
Publish to Google and social, and get leads from people filing on the platform.
07
Client portal
Your clients log in and see exactly what's filed and what's due.
08
Integrations
Bank feeds, payments, e-signature and ID checks, plugged in.
Why now

The law is making tax digital. Everyone needs new tools.

From April 2026, HMRC's Making Tax Digital turns one annual return into quarterly filing through MTD-compatible software, reaching most landlords and the self-employed by 2028. Keelaris is built for it, and tells you what you owe before HMRC does.

2026Over £50k, live now
2027Over £30k joins
2028Over £20k joins

Pick your door.

Whether you run a practice or just want it off your plate.

I run a practice I'm filing for myself