The mistakes that cost the most
- Underclaiming expenses. Tools, materials, mileage, protective clothing and insurance all reduce your tax and increase your refund. Missing them leaves money behind.
- Missing deduction statements. Without a statement from every contractor, the CIS you reclaim is understated.
- Filing late. A refund only comes once the return is in, so delay means waiting longer for your money and risking penalties.
- Wrong or rushed figures. Errors can delay the refund or trigger questions.
- Not keeping records. HMRC may check, so keep statements and receipts for at least 5 years.
Owed a CIS refund?
Most subcontractors underclaim and get back less than they should. TaxTune gathers your statements, claims every expense, and files fast so you get the maximum, sooner.
Let us maximise your CIS refund
We collect your statements, claim everything allowable, and chase the refund. Fixed fee, and most clients get back more than expected.
Frequently asked questions
Why is my CIS refund smaller than expected?
Usually because expenses were underclaimed. Tools, materials, mileage, protective clothing and insurance all reduce your tax and increase your refund, and are commonly missed.
What if I have lost a CIS deduction statement?
Ask the contractor for a copy. Without evidence of the CIS taken, the amount you can reclaim is understated, so it is worth chasing every statement.
How do I get my CIS refund faster?
File your return promptly and accurately once the tax year ends. The refund only comes after the return is processed, so early, correct filing gets your money back sooner.
How long should I keep CIS records?
At least 5 years after the 31 January deadline. HMRC can check a refund claim, and statements and receipts are your evidence.
Can an accountant get me a bigger refund?
Often yes, by claiming every allowable expense you are entitled to. Underclaiming is the main reason subcontractors receive less than they should.