In the UK construction industry, ensuring compliance with the Construction Industry Scheme (CIS) requires strict adherence to statutory reporting rules. When advising clients operating within this sector during the 2026/27 tax year, understanding exactly “what is a CIS statement” and how it intersects with the new Making Tax Digital (MTD) landscape is essential.
What is a CIS Statement?
A CIS statement—officially termed a “Payment and Deduction Statement” (PDS) by HMRC—is a mandatory statutory document that a contractor must provide to a subcontractor if they have deducted tax from a contract payment.
When the modernised CIS regime replaced the old paper voucher system, the government mandated the PDS as the primary record of tax withheld at source. The statement acts as the subcontractor’s legal proof that the contractor has deducted either the standard rate (20%) or the higher rate (30%) of tax from their gross payment.
The Contractor’s Obligation: Issuance and Deadlines
The legal burden of issuing the statement falls entirely on the contractor (the issuing party). Under Regulation 4(8) of the Income Tax (Construction Industry Scheme) Regulations 2005 (SI 2005/2045), the contractor must give the specified information in writing to the subcontractor no later than 14 days after the end of the tax month to which it relates.
Because the UK tax month ends on the 5th, the contractor must issue the statement by the 19th of every month. The contractor can choose to issue a single statement covering all payments made to the subcontractor during that tax month, or they can issue individual statements on a payment-by-payment basis.
Electronic Delivery (Reg 4(9)): Contractors do not have to rely on paper. Regulation 4(9) explicitly permits the contractor to issue the payment and deduction statement via electronic communications (such as email). However, the contractor can only do this if two strict conditions are met:
- Both the contractor and the subcontractor have agreed to use electronic means.
- The electronic format allows the subcontractor to safely store the statement and print a physical paper copy.
Mandatory Information Requirements
A contractor can design their own style of CIS statement, but Regulation 4(8) legally compels them to include specific data points. If a contractor issues a statement missing these elements, it is technically non-compliant.
| Required Element | Statutory Purpose |
|---|---|
| Contractor Details | The contractor’s name and their employer’s tax reference. |
| Date Information | The end date of the tax month in which the payment was made (e.g., “Tax month ending 5 June 2026”), or the specific date of the payment. |
| Subcontractor Details | The subcontractor’s name and their Unique Taxpayer Reference (UTR). |
| Gross Payment | The total gross amount of the contract payments made by the contractor to the subcontractor during the tax month. |
| Material Costs | The total amount included in the payment that represents the direct cost of materials (which reduces the amount upon which the CIS deduction is calculated). |
| Deduction Amount | The exact total amount of tax deducted from the payment under section 61 of the Finance Act 2004. |
| Verification Number | The subcontractor’s personal verification reference number, but only required if the subcontractor is unregistered and subject to the 30% higher rate deduction. |
Note on Gross Status: Contractors do not legally have to issue a payment and deduction statement to a subcontractor who is registered for gross payment status (where no tax is deducted), though they may choose to do so for administrative clarity.
The Subcontractor’s Position: Self Assessment and MTD
For the subcontractor (the receiving party), the CIS statement is a vital financial asset. Because the contractor pays the deducted tax directly to HMRC, the subcontractor uses the PDS to claim credit for these deductions on their Self Assessment tax return.
When the subcontractor files their return, HMRC runs an automated data-matching process. HMRC systems compare the total CIS deductions the subcontractor claims against the totals reported by all their contractors via the mandatory monthly CIS300 returns. If the total amount deducted for the year exceeds the subcontractor’s aggregate Income Tax and Class 4 National Insurance liability, HMRC will issue a repayment.
2026/27 MTD Context: For the 2026/27 tax year, the rollout of Making Tax Digital for Income Tax Self Assessment (MTD for ITSA) fundamentally upgrades how subcontractors interact with this data. Sole traders breaching the £50,000 qualifying income threshold must operate MTD. Consequently, if a contractor ceases trading or fails to provide the required CIS statements, subcontractors equipped with an MTD account can now view their missing CIS payment details directly within their HMRC online dashboard. If a subcontractor has not yet transitioned to MTD, they must write a formal letter to HMRC detailing their UTR, the contractor’s details, and the payment dates to recover the missing statement data.
Next steps for research: Review the statutory appeal process under Regulation 9 of SI 2005/2045 for situations where HMRC refuses to grant credit to a subcontractor because a defaulting contractor failed to pay over the deducted tax.
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