VAT & tax

Construction VAT reverse charge, explained for sole traders

12 May 2026 · 7 min read

If you do work for another builder rather than the end customer, the VAT on your invoice probably is not yours to collect. The **domestic reverse charge** moved that job onto your customer — and a lot of tradesmen still get the wording wrong. Here is how it actually works on the ground.

VAT is usually simple: you add it to your price, the customer pays you, you pass it to the tax office. The reverse charge breaks that chain for construction work between businesses. Instead of you collecting the VAT, your customer accounts for it directly. You still show the VAT rate and amount on the invoice — you just do not get paid it.

The mechanism has different names in different countries — the Domestic Reverse Charge (DRC) for construction in the UK, the construction VAT reverse charge tied to RCT in Ireland, and equivalents across the EU under the same Article 199 logic — but the principle is identical. This guide explains the shape of it so you know when to reach for it. Always confirm the current rule with your own tax authority before you rely on it.

When the reverse charge applies

Three things generally have to be true at the same time:

  1. The work is a construction service — installation, repair, alteration, demolition and the materials supplied with them. Pure materials with no labour usually fall outside it.
  2. Both you and your customer are VAT-registered (and, where the scheme requires it, registered under the construction tax scheme — CIS in the UK, RCT in Ireland).
  3. Your customer is not the end user. They are buying your work to sell it on as part of their own construction supply — a main contractor hiring you as a subcontractor is the classic case.

Flip any one of those and you are usually back to charging VAT the normal way. Work straight for a homeowner? Normal VAT. Customer not VAT-registered? Normal VAT. Supplying only materials? Normal VAT. The reverse charge is specifically for the business-to-business middle of the construction chain.

What goes on the invoice

A reverse-charge invoice looks like a normal one with two differences. First, you still itemise the work and show the VAT rate and the VAT amount that *would* apply — so your customer knows exactly how much to account for. Second, you do not add that VAT to the total they pay you, and you state clearly that the reverse charge applies.

The standard wording is short and explicit — something like: "Reverse charge: customer to account for the VAT to the tax authority." Vague is dangerous here. An inspector wants to see that both you and the customer understood who was responsible. A blank space where that line should be is the single most common reason these invoices get queried.

Show the VAT, name the rate, then say in plain words that the customer pays it — not you. That one sentence is the difference between a clean invoice and an audit note.

The mistakes that cost money

Charging VAT you should not have

If you add VAT to a reverse-charge job and the customer pays it, they cannot reclaim it — it was never yours to charge. You end up issuing a credit note and reissuing the invoice, and you have annoyed the one customer who gives you steady work. Decide the treatment *before* you raise the invoice, not after.

Getting the end-user test wrong

The same customer can be an end user on one job and a reverse-charge customer on the next. A developer who hires you to fix their own office is an end user; the same developer hiring you for a flat they are building to sell is not. Judge it per job, and keep the customer’s end-user statement on file when they give you one.

Materials-heavy jobs slipping rates

Reduced construction rates and the reverse charge interact with how much of the price is materials. In some countries a job tips from a reduced rate to the standard rate once materials cross a threshold of the total. Flag that on the quote so a materials-heavy job does not quietly land you on the wrong rate.

How to keep it boring

Boring is the goal with VAT. The way you get there is to let the tool decide the treatment from the facts you already have — the customer’s VAT status, whether they are the end user, the tax codes on both sides — instead of remembering a rule on a wet Friday afternoon. MarginTap stamps the reverse-charge wording automatically when the job qualifies, shows the VAT without collecting it, and keeps the quote, invoice and payment record together so an RCT or CIS return has something to stand on.

[ See how MarginTap handles construction VAT → ]

None of this is a substitute for advice from your own accountant or tax authority — rules change, thresholds move, and your situation may have a wrinkle this guide does not cover. But if you understand the three-part test and never leave the reverse-charge line blank, you have avoided the two mistakes that catch most sole traders.

Next, see how to quote a job without underpricing yourself — because the cleanest VAT treatment in the world will not save a job you priced too low.

SHEET 08 · EARLY ACCESS

Get early access for €5/month for life.

No countdown timer. No "only 7 spots left". Just: we ship in autumn, and the first traders on the list pay half forever.

// WE WON'T EMAIL YOU UNTIL WE HAVE SOMETHING WORTH OPENING.

Tradesman in workwear in his van at sunset, sending a quote on his phone, folded high-vis on the seat.