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A film in three acts
Your books. Every HMRC rule.
One perfect result.
Act I — The long night
Receipts. Envelopes. Deadlines. Every January, the same slow orbit of doubt.
Manuals, reliefs, allowances, case notes. No accountant alive can hold them all in their head.
Act II — Into the machine
QuickBooks, Xero or Sage — one secure link and TaxSignal ingests every ledger, invoice and receipt.
Live calculations begin the moment your data lands — pulling HMRC guidance in real time, line by line against your numbers.
Macro — inside the engine
Every manual, notice and relief in the HMRC corpus — not a memory, a database.
Every transaction tested against every clause it could possibly touch.
A ranked report of exactly where you’re overpaying — allowances missed, reliefs unclaimed, with the HMRC source cited for each.
Soon, when the report is right, you'll file your return to HMRC without ever leaving the app.
Act III — Daylight
Every overpayment surfaced and explained, each cited to HMRC — ready for you or your accountant to act on. One-click filing from inside the app is coming soon.
Roll credits on tax anxiety
Connect QuickBooks, Xero or Sage in minutes. See your savings report before you pay a penny.
Bank-grade encryption · UK-hosted · read-only access · we never sell your data. How we protect your data
Trust & security
TaxSignal reads your financial data, so security isn't a feature — it's the foundation.
We only ever request read-only access. We can never move money, make payments, or change your books.
Connection tokens are encrypted at rest with Supabase Vault, never stored in plain text or exposed to your browser; all data moves over TLS.
Your data is stored in a UK (London) data centre.
Only you can see your data. We never sell it or share it for marketing.
Your figures are analysed by AI to find savings, never used to train any AI model.
Disconnect any time, request full deletion whenever you want.
Why TaxSignal
I pay my accountant £500 a month. And I've never been sure they're finding me every saving I'm entitled to. They're good people — but they've got hundreds of clients, and nobody has the time to cross-reference my accounts against thousands of pages of HMRC guidance every time something changes. So I built the thing I wished existed.
There are over 80,000 sections of published HMRC guidance. No human can cross-reference every one against your exact numbers, every month, for a sensible fee. Software can.
Most businesses get tax advice once a year, at filing. By then it's too late to act. TaxSignal watches continuously and tells you while you can still do something about it.
Every finding is explained in plain English and cited to the actual HMRC rule, so you understand it — and your accountant can verify it.
TaxSignal doesn't replace your accountant — it makes sure nothing gets missed, and gives you both a head start.
Pricing
Filing a return costs £49 + VAT per return (coming soon).
All prices exclude VAT. 3 months free applies to Solo and Business annual plans in your first year; monthly plans include 1 month free.
