Navigating the requirements and procedures of claiming a CIS refund can be a daunting task for subcontractors in the construction industry. From submitting the correct paperwork to ensuring compliance with tax regulations, it can be a time-consuming and stressful process.
That’s where our blog comes in- it intends to provide clear guidance and support for both sole traders and limited company subcontractors who are looking to claim CIS refunds.
Understanding CIS Refunds Claim

CIS or Construction Industry Scheme is a tax system in the construction industry where contractors deduct tax on behalf of subcontractors and pay it to HMRC. Subcontractors can later claim a refund or CIS tax rebate for the tax payment made in advance.
Before diving into the specifics of how subcontractors can claim back their CIS tax deductions, it's important to grasp the concept of the "CIS Suffered amount." Essentially, this term refers to the upfront tax payment made by subcontractors in the form of CIS deductions.
The process and documentation required for a CIS claim depend on the type of business entity (whether it is a sole trader, a partnership, or a limited company), so subcontractors need to carefully review the requirements.
We have covered the process for claiming the CIS refund for :
How Sole Traders Claim a CIS Refund(via Self Assessment)
The subcontractors operating as sole traders or partnerships should include the claim in their self-assessment tax returns.
To help you navigate the process of claiming a refund for CIS deductions, we have put together a brief description of the steps involved:
1
Enter all deductions made by your contractor in the ‘CIS Deductions’ section (Box 38) of the self-assessment return

2
Now, send the Self-assessment tax return as usual.
3
HM Revenue and Customs (HMRC) will offset any Construction Industry Scheme (CIS) deductions you faced against your tax liability.
4
If the balance shows tax payable, any outstanding tax must be paid to HMRC by 31st January following the end of the tax year (e.g., by 31 January 2025 for tax year 2023/24).
5
If the balance shows tax recoverable, HMRC will pay you back.
It is important to keep accurate records, including CIS deduction statements provided by contractors, as these confirm how much tax has already been paid on your behalf. Filing your return early after the end of the tax year can help speed up your refund.
Also Know More About: How to Claim a Tax Refund via Self-Assessment in the UK
How Limited Companies Claim a CIS Refund(via PAYE/EPS)
The subcontractors operating as a limited company can claim the CIS suffered amount through the company's monthly payroll system.
In this section, we will outline the steps involved in claiming a refund for CIS deductions made from payments to limited company subcontractors.
If you are registered under Construction Industry Scheme for:
CIS Tax Rebate for a Limited Company Subcontractor with no Payroll
If you do not run a workplace payroll, HMRC doesn’t provide you CIS repayments during the year. Instead, for any unrelieved CIS tax deductions that remain at the tax year-end (5th April), you can claim a repayment that can be offset against other taxes or refunded to your bank account.
When Will You Get CIS Tax Refund From HMRC
For limited companies, the process may take longer as refunds are linked to PAYE reporting and year-end reconciliation. In most cases, repayments take around four to eight weeks, but delays can happen if HMRC needs to review the claim in more detail. To avoid delays, it's important to submit accurate information, keep records up to date, and file CIS returns promptly.
Common Mistakes When Claiming CIS Tax Refund
There are several common mistakes that can delay your CIS refund or lead to HMRC queries, and avoiding them is crucial to ensuring a smooth process.
Conclusion
Understanding the CIS tax deductions and the process for claiming refunds is crucial for subcontractors to avoid overpaying taxes.
By following the guidelines set by HMRC, subcontractors can successfully claim their CIS tax deductions and receive the refunds they are entitled to. Ultimately, the CIS system ensures fairness and transparency in the construction industry's tax payments.
Claiming a CIS tax refund can be a complex and confusing process, especially when it comes to dealing with the paperwork involved. If you're finding it difficult to navigate the requirements and procedures, we're here to help.
How UKPA Can Help?
Not sure whether to file a nil return or notify HMRC of inactivity? Our CIS specialists will advise you.
Frequently Asked Questions
Subcontractors, including limited companies, who have had CIS deductions made from payments and have overpaid tax or National Insurance through the scheme. The claimant must also have submitted all necessary returns, like PAYE, CIS, and Corporation Tax returns.
Limited companies can claim a CIS refund online through their HMRC business account, or by post. You'll need your company details, PAYE reference, and UTR (Unique Taxpayer Reference). HMRC will review the claim and issue a refund if applicable.
To inquire about a CIS refund, call HMRC's general CIS helpline at 0300 200 3210 (or +44 161 930 8706 from outside the UK). You can also write to HMRC at PT Operations, HMRC, BX9 1BX, United Kingdom.
You can check the progress of your CIS refund by logging into your HMRC online account under the "Payments and repayments" section. If you need further information, contact HMRC directly via their helpline or by post.
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