The UK’s 2026 Budget and the announced tax measures, which are included in the Finance Bill 2026/2027, emphasize the importance of different modifications within various sections of the indirect tax system.
One of these VAT-related changes refers to an important readjustment of the tax accountability logic for the cross-border B2B provision of services.
The Finance Bill 2026/2027 includes the revision of the B2B reverse charge mechanism(RCM) measures for the cross-border provision of services. The newly proposed concept should come into effect from April 1, 2027.
Proposed UK VAT B2B reverse charge model, which should come into effect on April 1, 2027, introduces new liabilities for overseas providers of services(consultancy, software, other services), such as responsibility to properly validate the UK VAT registration of the buyer; accountability for VAT collection when the purchaser isn’t registered for UK VAT.
UK VAT B2B Reverse Charge
Principal changes to the currently used UK VAT B2B reverse charge tax accountability system could be selectively differentiated into two different types of new obligations. New responsibilities for foreign service providers, and obligations for domestic purchasers who aren’t UK VAT-registered businesses.
Overseas Service Providers
Overseas suppliers will no longer have the “benefit” of treating all B2B transactions with UK customers in the same manner. These providers shall be mandated to diligently review(and document) the VAT status of each buyer, as the cross-border B2B reverse charge will not apply in the same manner.
The overseas providers could treat the cross-border B2B transactions under the UK VAT reverse charge mechanism for services(for selected types of services) only when the buyer is an actively VAT-registered business.
When the purchaser is a business that isn’t registered for UK VAT, the reverse charge cannot be used anymore, and the overseas service provider will be accountable for UK VAT. Taking into account that overseas service providers cannot benefit from the VAT threshold as domestic businesses, this means that most probably they would need to register for UK VAT from the first taxable supply.
When the buyer is a UK VAT-registered business, nothing changes; the UK VAT reverse charge mechanism remains, the supply is tax-exempt under RCM for overseas vendors, while domestic businesses account for VAT under self-assessment via standard return.
Domestic Buyers
Domestic buyers that aren’t registered for VAT will most likely pay more, as under the announced changes overseas vendors shall be held liable for proper UK VAT collection for this type of transaction. A beneficial part of the readjusted RCM regime is that these overseas purchases aren’t going to be included in the threshold calculation for domestic VAT.
HMRC’s Proposal
HMRC’s policy objective states that the modification of the currently used UK VAT RCM for B2B services will reduce the compliance obligations for the UK’s small businesses. Then it would “guarantee” less commercial advantage for overseas service providers compared to domestic providers that are mandated to account for VAT on the same services.
However, this measure means that the majority of foreign service providers should account for VAT when they make commercial transactions with UK VAT non-registered businesses. Practically, they will need to register for VAT, collect, and remit it to HMRC, directly or via representatives when needed.