Reverse Charge on Shopify Invoices: VAT Number Rules (2026)

Our first guide covered what a UK VAT invoice must contain. This one covers the case that trips up most Shopify stores as soon as a business customer from another country appears: the reverse charge. When does it apply, what changes on the invoice, and how do you get a Shopify order to carry the customer’s VAT number so the invoice is right without manual editing.

What the reverse charge is

Normally the seller charges VAT, collects it and pays it to the tax authority. Under the reverse charge the seller charges nothing and the business customer declares the VAT on its own return, usually deducting it in the same return so the net effect is zero. The mechanism exists because a seller in one country cannot sensibly collect another country’s VAT for every business customer it has.

It only ever applies to business customers. A consumer never accounts for VAT, so there is no reverse charge on B2C sales, whatever the country. That is why the whole mechanism hinges on one piece of evidence: the customer’s VAT registration number.

When it applies to a Shopify store

Where the reverse charge applies depends on what you sell and where the two parties are. The table covers the three combinations that matter for most stores.

You sell	Seller → customer	Treatment	What goes on the invoice
Services (digital products, design, consulting, subscriptions)	UK → EU business, EU → EU business, EU → UK business	Reverse charge. Place of supply is the customer’s country under the B2B general rule	No VAT, customer’s VAT number, “Reverse charge”
Goods	EU seller → business in another EU country	Intra-community supply, exempt in the seller’s country; the customer accounts for acquisition VAT	No VAT, customer’s VAT number valid in VIES, “Reverse charge” or “Intra-community supply, Article 138”
Goods	UK seller → EU business	Not a reverse charge. A zero-rated export from the UK; the customer or the courier pays import VAT at the border	0% VAT, “Zero-rated export”, proof of export kept for the file
Goods or services	Any seller → business in the same country	Normal domestic VAT (except the UK construction reverse charge, which does not concern e-commerce)	Standard VAT invoice

Two clarifications. First, in the UK the general B2B rule is in VAT Notice 741A section 6.3: the place of supply of services is where the customer belongs. Second, the customer’s VAT number is not just a formality for goods inside the EU: since 2020 a valid VAT number and a recapitulative statement are substantive conditions for the exemption. Sell to an EU business without it and you owe your own country’s VAT on the sale.

A Turkish store selling into Europe is in the export position for goods: the sale leaves Türkiye under the export exemption and the EU customer pays import VAT. The customer’s VAT number is not required for the Turkish invoice, but printing it helps the customer reclaim the import VAT, and for services to EU businesses the EU customer will apply the reverse charge on its side regardless.

What must appear on the invoice

Beyond the normal invoice contents, a reverse charge invoice needs two things.

Item	UK basis	EU basis
The customer’s VAT registration number	Notice 741A: the VAT number is “the best evidence” that the customer is in business; without it you must charge UK VAT	VAT Directive Article 226(4): the customer’s VAT number is mandatory when the customer is liable for the VAT
A reference that the customer accounts for the VAT	VAT Regulations 1995, reg. 14: where the customer is liable to pay the tax, the invoice must carry “a relevant reference or indication”	Article 226(11a): the mention “Reverse charge” is mandatory

Wording that satisfies both sides in one line: “Reverse charge: VAT to be accounted for by the recipient under Article 196 of Council Directive 2006/112/EC.” For goods between EU countries replace Article 196 with Article 138. For a UK export write “Zero-rated export of goods, VAT Act 1994 s.30(6)” or simply “Zero-rated export”.

The VAT column shows 0% and £0.00 or €0.00. Do not leave the VAT line blank and do not write “VAT exempt”: exempt is a different category with different consequences for your own input VAT.

One more rule from the first guide still applies: if you are UK-registered and invoice in euros, the VAT amount must also be shown in sterling. On a reverse charge invoice that amount is zero, so the requirement is satisfied by showing GBP 0.00.

Verify the number, and keep proof

A VAT number that does not check out is worse than no number, because it shows you did not look. Checking takes a minute.

EU numbers: the Commission’s VIES service. It returns valid or invalid and, for most countries, the registered name and address. Save the consultation number it gives you; that is your proof.
UK numbers: HMRC’s “Check a UK VAT number” service, which also gives a reference for the check when you enter your own VAT number.
Match the details. The name on the VIES result should match the customer’s order. A mismatch is a reason to ask, not a reason to ignore.
Check again periodically for repeat customers. Registrations lapse.

Keep the record with the invoice. If the tax authority later questions why you did not charge VAT, the dated check plus the customer’s number on the invoice is the answer.

Getting the VAT number into Shopify

This is the practical problem. Shopify has no VAT-number field on the standard order form for every plan, and the invoice can only print what the order or the customer record contains. There are three ways to get the number in.

1. Shopify’s own VAT validation at checkout

Stores using Shopify Tax can show a “Company VAT number” field at checkout. Shopify validates the number in VIES in real time, removes the VAT when it is valid, adds the note “Reverse Charge Mechanism: Recipient responsible for VAT” and stores the number on the customer profile.

The limits matter for UK stores. The exemption applies only when the destination country differs from the country of the fulfilment location, and Shopify’s help centre lists EU-to-EU and EU-to-UK orders as eligible and UK-to-EU as not. An active EU fulfilment location is required. It also does not run in B2B-specific checkouts. In short, this route is for stores that ship from inside the EU.

2. Tax-exempt customer profile

Any store, any plan. Open the customer, choose Manage tax settings, and set “Don’t collect tax”. Every future order from that email address is created without VAT. Put the VAT number in the customer’s company field or note so the invoicing app can read it, and record the VIES check date in the same note.

The risk is scope: the exemption applies to all orders for that customer, including one shipped to their private address. Use it for genuine trade customers and review the list once a quarter.

3. An invoicing app that applies the treatment from the customer data

The cleanest route for a UK or EU store with mixed B2B and B2C orders. The app reads the customer’s country and VAT number, decides between domestic VAT, reverse charge and zero-rated export, prints the number and the correct reference, and issues a credit note with the same treatment when the order is refunded. InvoiceFlow Pro does this on Shopify, which is why the first guide’s checklist and this one’s line of wording appear on its invoices automatically.

Whichever route you use, test it with one order before you rely on it: place a test order as a business customer, open the PDF, and check the three things that matter: zero VAT, the customer’s number, the reverse charge line.

After the invoice: the reporting side

UK sellers: reverse charge sales of services go in box 6 of the VAT return as outputs, with no VAT in box 1. Since Brexit there is no EC Sales List for services from Great Britain; only Northern Ireland goods still use it.
EU sellers: intra-community supplies of goods and reverse charge services go on the recapitulative statement (EC Sales List) with the customer’s VAT number. Miss the statement and the goods exemption can be refused.
Refunds: a credit note against a reverse charge invoice carries the same zero VAT and the same reference. Do not issue a credit note with VAT on it “to be safe”: that creates VAT that was never charged.

Frequently asked questions

The customer says they are a business but has no VAT number. Can I still apply the reverse charge?

For services to the EU, HMRC accepts alternative evidence of business status such as a certificate from the customer’s tax authority or commercial documents, but the practical answer for a store is no: without a number you cannot show it on the invoice, the customer cannot deduct anything, and you carry the risk. Charge VAT and treat the sale as B2C.

Do I need to charge VAT if the VAT number turns out to be invalid later?

If you checked it in VIES at the time and kept the proof, you acted in good faith. If you never checked, the tax authority can assess you for the VAT you did not charge. That is the whole point of keeping the consultation record.

Does the reverse charge apply to digital products sold to EU businesses from the UK?

Yes. Digital products are services for VAT purposes; the B2B general rule puts the place of supply in the customer’s country, so a valid VAT number means no UK VAT and a reverse charge invoice. Without a number it is a B2C sale and you may need the EU non-Union OSS scheme.

I ship goods from the UK to a German business. Reverse charge or export?

Export. You zero-rate the sale and keep proof of export; the German customer or the courier pays German import VAT. The customer’s VAT number is useful on the invoice but it is the export evidence that supports your zero rate.

Does Shopify validate UK VAT numbers?

Shopify’s checkout validation uses VIES, which covers EU numbers only. Check UK numbers with HMRC’s service and record the number on the customer profile yourself.

What if the customer is in the same country as my store?

Then it is a normal domestic sale with your standard VAT, whether or not they are a business. The reverse charge is a cross-border mechanism.

General information, not tax advice

Rules summarised as of September 2026. Confirm your own position with an accountant, especially if you sell both goods and services or hold VAT registrations in more than one country.

If you want the treatment applied automatically on every Shopify order, InvoiceFlow Pro issues the invoice and the credit note with the right VAT line and reference from the customer’s country and VAT number. If your store setup itself needs a review, the e-commerce consulting sessions cover tax settings alongside the rest of the checkout.

Reverse Charge and the Customer’s VAT Number on Shopify Invoices (2026)