VAT compliance for construction

The VAT domestic reverse charge for construction services changes how VAT is accounted for on most B2B construction work. Instead of the supplier charging VAT and paying it to HMRC, the customer accounts for the VAT directly on their own VAT return.

This rule has been in effect since 1 March 2021 and applies to most transactions between VAT-registered construction businesses.

What services are covered?

The reverse charge applies to specified construction services - the same categories covered by the Construction Industry Scheme (CIS). Understanding whether your work falls within scope is essential.

The reverse charge does not apply to every construction transaction. You must check several conditions for each customer. Getting this wrong means either failing to charge VAT when you should, or applying the reverse charge incorrectly.

The end user exception

Understanding who is an end user is crucial. An end user is a business that receives construction services but does NOT make onward supplies of those same services to another party.

Examples of end users (reverse charge does NOT apply):

• A retailer having a shop fitted out - the construction services stop with them
• A manufacturer having a factory extended - they make products, not construction services
• A landlord having repairs done to a rental property - they supply property, not construction

Examples of businesses that are NOT end users (reverse charge applies):

• A main contractor receiving services from subcontractors - they make onward supplies
• A labour-only subcontractor who subcontracts part of their work - they make onward supplies

Quick decision flowchart

For each construction supply, ask these questions in order:

1. Is the work a specified construction service? If No, charge VAT normally.
2. Is the supply standard-rated or reduced-rated? If zero-rated (e.g., new residential builds), no reverse charge.
3. Is your customer VAT-registered? If No, charge VAT normally.
4. Is your customer CIS-registered (or should they be)? If No, charge VAT normally.
5. Has your customer provided written end user confirmation? If Yes, charge VAT normally. If No, apply the reverse charge.

The 5% disregard: where the reverse charge element of a supply is 5% or less of the value of the whole supply, you and your customer may disregard it and apply normal VAT rules to the whole supply.

When the reverse charge applies, your invoice must be different from a normal VAT invoice. Getting this right is essential for both your records and your customer's VAT return.

Example reverse charge invoice

For construction services worth £10,000:

• Net amount: £10,000
• VAT rate: 20%
• VAT amount: £0.00 (Reverse charge applies)
• Total payable: £10,000
• Annotation: "Reverse charge: Customer to account to HMRC for the reverse charge output tax on the VAT exclusive price at the rate shown above."

The reverse charge changes how both suppliers and customers complete their VAT returns. Understanding which boxes to use prevents errors and HMRC queries.

If you are a subcontractor (supplier)

When you supply services subject to the reverse charge:

• Box 1: Do NOT include VAT on reverse charge supplies
• Box 6: Include the net value of your reverse charge supplies
• Box 4: Continue to reclaim input VAT on your purchases as normal

If you are a main contractor (customer)

When you receive services subject to the reverse charge:

• Box 1: Include the VAT on reverse charge supplies you have received
• Box 4: Include the same VAT (if you can recover it - most can)
• Box 7: Include the net value of reverse charge supplies received

For most contractors, the effect is neutral - Box 1 and Box 4 cancel out.

Managing the cash flow impact

The reverse charge significantly affects cash flow for subcontractors. Under normal VAT rules, you would collect VAT from customers and hold it until your VAT return. Under the reverse charge, you do not receive this VAT.

These errors frequently cause problems for construction businesses. Taking time to check these points can save you from penalties and HMRC queries.

Common mistakes to avoid

• Charging VAT when reverse charge applies: If you charge VAT when you should not have, your customer may refuse to pay the VAT element. You remain liable to account for it to HMRC.
• Not charging VAT to end users: If you fail to charge VAT to genuine end users, you are still liable to account for the VAT.
• Accepting end user claims without written confirmation: HMRC expects you to obtain and retain written confirmation. Verbal claims are not sufficient.
• Using incorrect invoice wording: The reverse charge annotation must be clear and unambiguous.
• Confusing CIS with VAT: CIS deductions are separate from VAT. The reverse charge affects VAT treatment; CIS deductions continue to operate normally.