CIS Subcontractors • UK Tax Refunds

CIS Tax Refunds

Q: What proof of self-employed income do I need?

You will need to provide CIS monthly or annual statements from your contractor showing your gross income and the tax deducted under the CIS scheme.

Q: What proof of PAYE work do I need to provide?

If you have also worked as an employee during the tax year, please provide any P45 or P60 forms from your employer to confirm your PAYE income and tax paid.

Q: What proof of expenses do I need?

HMRC recommends keeping receipts or invoices for any allowable business expenses you claim, such as tools, equipment, work clothing, or fuel.

Q: How do I claim mileage?

Provide your total business mileage for the year. This must only include travel to temporary work sites where you worked for less than two years. We will calculate the allowable mileage using HMRC rates.

Q: How do I send you my documents?

You can send your CIS statements and income details by email or WhatsApp. We will then confirm any expenses and mileage you wish to claim.

Q: What is your fee and how is it paid?

Our fee is £259 for a CIS tax refund claim. If you are due a refund, our fee is taken directly from your tax refund so there is no upfront payment required.

Q: How long does a CIS tax refund usually take?

Most refunds are processed within 2 to 4 weeks once HMRC has reviewed the return, although timescales can vary.

Q: Can you claim refunds for previous tax years?

Yes. In many cases claims can be made for up to four previous tax years, provided the returns have not already been submitted.

If you work in construction as a subcontractor under the Construction Industry Scheme (CIS), you may be due a tax refund.

Fast turnaround Accurate submissions Maximise your refund

We provide a simple and fast CIS tax refund service designed specifically for subcontractors. You focus on the work — we handle the paperwork.

What we do for you

Review your income and CIS deductions
Prepare and submit your Self Assessment tax return to HMRC
Include allowable expenses to maximise your refund
We track your refund with HMRC until it’s paid

Fixed fee: £259 — no upfront payment

Our fee is deducted directly from your tax refund once it’s issued, so you only pay when your refund is processed.

Check if you’re due a refund using the calculator below for an instant result.

CIS Tax Refund Calculator (YE 2026)

If you have other income, dividends, pensions etc this calculator will not work, get in touch.

Results

Estimated Tax Refund/Due (if minus refund due)

£0.00 Claim now

Q&A

What proof of self-employed income do I need?

What proof of PAYE work do I need to provide?

What proof of expenses do I need?

How do I claim mileage?

What mileage records should I keep?

How do I send you my documents?

What is your fee and how is it paid?

What dates should my information cover?

My income is over £50,000. Do I need to use Making Tax Digital?

How long does a CIS tax refund usually take?

Can I claim a refund if I have not submitted tax returns before?

Do I still need to file a tax return after claiming a refund?

Can you claim refunds for previous tax years?