Many employers are surprised to learn that earnings relating to duties performed in the UK can be taxable and subject to PAYE, even when the employee is not a UK‑resident and spends fewer than six months in the UK.
These liabilities often arise unnoticed and may later attract interest and penalties.
In the current economic climate, employers are increasingly turning to short business visits as a cost‑effective alternative to long‑term assignments. These visits are often informal, ad-hoc and not captured by internal mobility processes, meaning they can be easily overlooked by HR and payroll teams. However, they can create significant UK PAYE exposure.
What counts as a short-term business visitor to the UK?
A business visitor is someone who comes to the UK to perform their employment duties.
This does not include individuals whose UK activities are merely incidental to their main overseas role. A term HMRC interprets very narrowly, so employers should apply this exception with caution.
The individuals will typically remain resident in their home country and come to work in the UK for short periods not exceeding six months.
Whenever duties are performed in the UK for the benefit of a UK business, PAYE may be required from day one, regardless of how short the visit is.
Even where the employee’s earnings may ultimately be exempt from UK tax under a double tax treaty, HMRC may still expect the UK entity benefiting from the work to operate PAYE unless an appropriate agreement is in place.
How Appendix 4 STBV agreements reduce PAYE obligation
HMRC allows employers to relax PAYE requirements for certain Short-Term Business Visitors (STBVs) through an Appendix 4 Agreement.
To qualify, the visitor must:
- come from a country with a Double Taxation Agreement (DTA) with the UK
- remain employed and paid by an overseas company
- have no employment costs recharged to the UK entity:
- a recharge may be disregarded where the visitor spends fewer than 30 UK workdays in the tax year.
- a recharge may also be disregarded where the visitor spends fewer than 60 UK workdays that do not form part of a more substantial UK presence, though this triggers additional reporting requirements.
- be present in the UK for fewer than 183 days under the relevant treaty period
- not be a UK statutory director
UK PAYE and reporting obligations for short-term visitors
Employers must:
- track and record UK workdays for all overseas visitors
- identify individuals who may trigger PAYE
- assess eligibility for Appendix 4
- operate PAYE where required
- submit an annual Appendix 4 report to HMRC by 31 May following the end of the tax year
Benefits of an STBV agreement
avoids unexpected PAYE liabilities
- reduces penalties and interest
- demonstrates strong governance
- supports a lower HMRC risk rating
- simplifies administration
How Abbiss Cadres can help
We support employers by:
- reviewing STBV populations and assessing Appendix 4 eligibility
- preparing and submitting Appendix 4 Agreements
- designing practical tracking and reporting processes
- managing annual Appendix 4 filings
- advising on PAYE, treaty relief and wider cross‑border tax issues