Domestic Reverse Charge VAT for Electricians, Explained

The VAT domestic reverse charge for construction caught a lot of tradespeople off guard when it landed, and it still confuses electricians who mostly work business-to-business. In force since 1 March 2021, it changes who actually pays the VAT over to HMRC on certain jobs — and it changes how your invoice has to look. Here is what it means for a solo electrician.

What is the domestic reverse charge?

Normally, you charge your customer VAT, they pay it to you, and you pass it on to HMRC. Under the domestic reverse charge, that flips for qualifying construction services: you do not charge VAT on your invoice, and your customer accounts for it directly to HMRC instead. The "domestic" here means UK-based, not household — despite the name, this applies to business-to-business construction work, not to ordinary homeowners.

It was introduced to combat VAT fraud in construction supply chains, where a subcontractor would charge VAT, get paid it, and disappear without paying HMRC. By moving the VAT accounting up to the customer, that gap is closed.

When does it apply?

The reverse charge applies only when all of these are true for the job:

• The work is a construction service covered by the Construction Industry Scheme (most electrical installation is)
• Both you and your customer are VAT-registered
• Both you and your customer are registered for CIS
• Your customer is not the end user — they are a business that is going to supply the work on, not the final consumer of it
• The supply is standard-rated (20%) or reduced-rated (5%) — zero-rated work is outside it

In plain terms: if you are subbing for another VAT-and-CIS-registered contractor who is themselves selling the job on up the chain, the reverse charge almost certainly applies. If any one of those conditions is missing, you charge VAT the normal way.

The end-user exemption

The most important carve-out is the end user (and the related "intermediary supplier"). An end user is the customer who receives the construction work for their own use rather than to sell on — for example a business having its own premises rewired, or a property developer that will hold or use the building. When your customer is an end user, the reverse charge does not apply and you charge VAT normally.

Crucially, the customer has to tell you in writing that they are an end user (or intermediary) for the exemption to apply. If they have not confirmed it, and the other conditions are met, you should apply the reverse charge. Get this confirmation in writing and keep it on file.

How your invoice changes

When the reverse charge applies, your invoice looks different from a normal VAT invoice:

1. You still show all the usual VAT invoice details — your VAT number, the customer, the description, and the net amount for the work
2. You do not add VAT to the amount due — the customer pays you the net figure only
3. You must make clear the reverse charge applies, with wording such as "Reverse charge: customer to account for VAT to HMRC"
4. You must state the amount of VAT due under the reverse charge (or the rate), even though you are not charging it — so the customer knows exactly how much VAT to account for

So instead of "VAT at 20%: 240.00" adding to the total, you show the same 240.00 as a note ("Reverse charge VAT at 20%: 240.00 — customer to account for this to HMRC") and it is not included in the balance the customer pays you. You receive the net amount; HMRC gets the VAT from the customer.

How it interacts with CIS

The reverse charge sits on top of CIS, it does not replace it. On a reverse-charge job for a contractor you will typically see both at once:

• CIS is still deducted from your labour at your verified rate (usually 20%) — see the CIS deductions guide for the mechanics
• VAT is still shown at the correct rate, but under the reverse charge the customer accounts for it rather than paying it to you
• Materials are unaffected by CIS, and the reverse charge only concerns the VAT treatment

The result is that on a reverse-charge invoice your cash received is the net-of-VAT figure, minus CIS on the labour. That can be a real cash-flow shift compared with the old system where the VAT used to sit in your account until your return was due — so plan for it. If you are still getting to grips with the underlying VAT rates, the VAT for electricians guide covers standard, reduced and zero rates.

Getting it right in practice

Three habits keep you out of trouble: confirm your customer's VAT and CIS status before you invoice, get end-user or intermediary declarations in writing, and use invoicing software that produces the correct reverse-charge wording and VAT note automatically instead of hand-editing invoices. The same tidy, itemised approach that makes a good electrician quote is what makes a reverse-charge invoice defensible.

The bottom line

The domestic reverse charge only bites when you are supplying CIS-covered work to another VAT- and CIS-registered business that is not the end user. When it applies you stop charging VAT, state the reverse charge and the VAT amount on the invoice, and let the customer account for it — while CIS still comes off your labour as usual. When in doubt, get the customer's status in writing and check current HMRC guidance.