TaxDecoded

They made it
confusing
on purpose.

The tax system isn't complicated by accident. Every allowance, relief and rebate you're owed is buried in language designed to make you give up. We decode it. You keep what's yours.

Free to check. No account. No middleman taking a cut of what you're owed.

£2,500
average unclaimed by tradespeople each year
4 yrs
you can backdate most claims
£0
cost to check — free to use
£3,200 identified
Gas engineer, Ayrshire — unclaimed mileage, Gas Safe fees and tool expenses across 4 years
£680 identified
NHS nurse, Manchester — uniform allowance, NMC registration and professional subscription relief never claimed
£1,008 identified
Self-employed electrician, Bristol — marriage allowance backdated 4 years, never been told it existed

Guidance based on current HMRC published rates. Not personal financial advice. Always verify with HMRC or a qualified accountant for complex affairs.

TaxDecoded
Question 1 0%
TaxDecoded
Your decoded result
Based on what you told us, you could be owed
£0

The breakdown

Where your money is

Here's what we found — your full report shows you exactly how to claim each one.

Unlock your full report
£9.99

Everything above, explained in full — emailed to you within minutes

Every finding explained, with exact figures for your situation
Step-by-step instructions and the right form to claim each one
Backdated claims worked out across up to 4 tax years
Your tax code analysed — is HMRC taking too much?
Yours to keep, print and share
Card details

Secure payment via Stripe. We never store your financial details. You can claim everything yourself, free — we just make it simple.

Got it.

Your tax report is being prepared right now. You'll receive it by email within the next few minutes.

One thing to do right now
Check your tax code on your payslip or P60. The standard code for 2025/26 is 1257L. If yours is different — especially if it shows BR, 0T or a K code — there's a good chance HMRC is taking more than they should every month. Your full report explains exactly what to do.
Want a printed copy posted to you?

Some people prefer a physical document to work through — easier to annotate, share with a partner, or keep with your financial records.

Want the actual claim forms posted to you?

We can print the exact HMRC forms you need — already marked up with what goes where for your situation — and post them ready to sign and send. No printer, no faffing about online.

Questions? Reply to the email we're sending you and we'll get back to you personally.