CIS Rebates for Groundworkers
If you’re a groundworker operating under CIS, there’s a strong chance you’ve overpaid tax without even realising it.
Under the Construction Industry Scheme, contractors deduct 20% or 30% tax from your pay before you receive it. The problem is, these deductions don’t take into account your expenses or tax-free allowance — meaning many groundworkers end up paying more tax than they should.
The result? You could be owed a CIS tax rebate.
At TIK Tax, we make it simple to claim your CIS rebate and get your money back without the hassle.
Check how much you can claim today
What Is CIS and How Does It Work for Groundworkers?
The Construction Industry Scheme (CIS) is a tax system used across the construction industry, including groundworkers involved in site preparation, drainage, excavation, and civil engineering work.
Instead of paying tax at the end of the year, contractors deduct it at source.
- 20% if you’re registered for CIS
- 30% if you’re not registered
These deductions are sent directly to HMRC as advance payments towards your tax bill.
However, they don’t reflect your actual tax position which is why many groundworkers are due a CIS refund once everything is properly calculated.
Why Groundworkers Often Overpay Tax
Groundworkers are particularly likely to overpay tax under CIS due to the nature of their work.
This happens because:
- CIS deductions don’t consider your expenses
- Your personal allowance isn’t applied throughout the year
- Flat-rate deductions often mean too much tax is taken upfront
Because of this, overpaying tax is extremely common and the only way to reclaim it is through a tax return.
In simple terms: if you’re a groundworker under CIS, there’s a good chance you’re owed money back.
What Expenses Can Groundworkers Claim?
Groundworkers typically have a wide range of allowable expenses — which is a key reason why rebates can be significant.
You may be able to claim for:
- Tools and heavy equipment
- Fuel and travel to different job sites
- Vehicle and van costs
- PPE and protective clothing
- Materials (if you supply them yourself)
- Public liability insurance
- Work-related phone usage
Because groundworks is physically demanding and site-based, these costs can quickly add up, reducing your taxable income and increasing your CIS rebate.
How Much CIS Tax Refund Can Groundworkers Get?
There’s no fixed amount when it comes to CIS rebates, as every claim is different.
Your refund will depend on:
- Your total earnings
- How much CIS tax has been deducted
- The expenses you claim
That said, many groundworkers receive refunds between £1,000 and £5,000+, depending on their situation.
Find out how much you can claim with a free estimate
How to Claim Your CIS Rebate
To claim your CIS rebate, you need to submit a Self Assessment tax return to HMRC.
The process involves:
- Providing your details (UTR, income, expenses)
- Calculating your total tax position
- Submitting your return to HMRC
- Receiving your refund
While it can be done yourself, many groundworkers miss out on money by not claiming everything correctly.
That’s where TIK Tax comes in: we handle the entire process for you, ensuring your claim is accurate and maximised.
Common CIS Issues for Groundworkers
It’s not uncommon for groundworkers to run into issues with CIS, including:
- Incorrect tax deductions from contractors
- Missing CIS payments not recorded properly
- Overpaying tax year after year
- Not claiming all allowable expenses
If any of these apply to you, there’s a strong chance you’re owed a refund.
How Long Does a CIS Refund Take?
Once your claim has been submitted, most CIS refunds are processed within 2 to 8 weeks
The exact timeframe depends on HMRC, but submitting an accurate claim the first time helps avoid unnecessary delays.
Get Help With Your CIS Rebate
Claiming your CIS rebate doesn’t need to be complicated.
At TIK Tax, we provide a simple, stress-free service for groundworkers:
- Free estimate to see how much you can claim
- We handle your entire tax return from start to finish
- Ensure you claim everything you’re entitled to
- Fast and efficient process
Most groundworkers are owed money — the only question is how much.
Start your CIS rebate today
Find out how much you can claim
Get your free quote now