How much CIS tax are you owed back?
HMRC takes 20–30% off your pay before you've counted a single tool, mile or tank of diesel. Most subcontractors overpay — check what you're owed in 60 seconds.
- Conservative, accountant-set rules
- Flat fee, never a cut
- Refund to your account
- Free to check
Start with your trade
Same conservative engine, examples tailored to your line of work.
How it works
You stay in control the whole way — we do the digging and the paperwork, you file your own claim.
- 1
Check your estimate
Pick your trade, enter what you were paid. See what you could be owed in about a minute — free, no sign-up.
- 2
Connect your bank or upload statements
One secure connection via UK Open Banking, or upload your statements. Our AI reads every transaction and finds the expenses you can claim.
- 3
Answer a few quick questions
We only ask about the transactions we're unsure of — “was that £60 at the pump for work?” — then double-check nothing is over-claimed.
- 4
Sign, submit, get paid
You file your own claim and the refund lands in your account, usually within 3–6 weeks. We only charge once it's confirmed.
What counts as an expense
The everyday costs of being on the tools come off your taxable profit. Most lads never claim half of them — that's where your refund hides.
- Van & fuel
- Tools & equipment
- Work boots & PPE
- Phone & internet
- Mileage to sites
- Materials you fronted
- Workwear & washing it
- Use of home as office
One flat fee. Never a cut of your refund.
No-win, no-fee. We only charge once HMRC confirms your refund — and only if it's worth more than the fee. Checking your estimate is always free.
Last 2 years
Connect your bank and we claim the most recent two tax years — where most refunds sit.
- No-win, no-fee
- Charged only when your refund lands
Full 4 years
Go back the full four years HMRC allows. Older years are claimed from your uploaded statements.
- No-win, no-fee
- Only charged if you're owed more than the fee
Questions, answered
Am I actually owed anything?
If you're CIS-registered and self-employed, 20–30% was deducted from your pay before any of your expenses or your tax-free allowance were counted. That's exactly why most subcontractors overpay. The only way to know your number is to check — it's free.
What does it cost?
A flat fee — £99 for the last two years or £299 for the full four. Never a percentage of your refund. It's no-win, no-fee: you're only charged once your refund is confirmed, and only if it's worth more than the fee.
Does the money come to me?
Always. The refund is paid straight into your own bank account by HMRC — we never take a cut from it or have it paid to us. You file the claim yourself; we're the software that prepares it.
Is my bank data safe?
Yes. We use FCA-regulated UK Open Banking — the same secure rails your banking app uses — and you stay in control of the connection. We're ICO-registered and we minimise and encrypt what we store.
Could I just do this myself?
You can — you can claim a CIS refund for free directly at gov.uk. Quibo does the digging, the maths and the paperwork for you, and keeps a full backup pack in case HMRC ever asks questions.
See your number in 60 seconds
Free to check, no sign-up to see your estimate. You've nothing to lose but the tax you overpaid.
Pick your trade →