Overseas Workday Relief: A Complete UK Guide

Overseas workday relief (OWR) is a valuable tax relief for individuals who become UK resident and have employment duties performed partly outside the UK. It allows a proportion of employment income relating to overseas workdays to be taxed only when remitted to the UK, rather than on an arising basis. From 6 April 2025, significant changes to the relief have been introduced alongside the broader reforms to the non-dom regime.

Who Qualifies for OWR

OWR is available to individuals who are UK resident and who have not been UK resident in the previous three tax years. The relief applies to earnings from a non-UK employment where the duties are performed partly overseas. It does not apply to UK employment duties or to self-employment income.

To qualify, your employment must be with a non-UK employer, or if with a UK employer, the duties must relate to a foreign branch or overseas business. The relief is available for the first three tax years of UK residence, subject to the new rules from 2025.

How the Relief Works

Under OWR, the portion of your employment income that relates to days you worked outside the UK is treated as foreign income. If you are eligible, this income is only subject to UK tax when it is remitted to the UK (brought into the country or used for UK purposes). The proportion is calculated by dividing the number of overseas workdays by the total workdays in the tax year.

For example, if you work 100 days overseas and 200 days total in a tax year, 50% of your employment income qualifies for OWR. If you leave that income in an overseas bank account and do not remit it to the UK, no UK tax is due on that portion. However, you must still report the income on your self assessment return and track any subsequent remittances.

Claiming OWR

OWR must be claimed through your self assessment tax return. You need to provide details of your employment duties, work locations, and the number of overseas workdays. HMRC may ask for supporting evidence, including travel records, employment contracts, and a schedule of duties performed overseas.

It is essential to keep a detailed diary of your work locations throughout the tax year. HMRC expects you to be able to demonstrate which days were UK workdays and which were overseas workdays. A reasonable approximation is not sufficient — you must have contemporaneous records.

Interaction with the Remittance Basis

OWR operates alongside the remittance basis of taxation. If you are eligible for OWR but not domiciled in the UK, you may also be able to claim the remittance basis for other foreign income and gains. However, from 6 April 2025, the remittance basis is being replaced by the FIG regime, which affects how OWR interacts with other foreign income.

Under the new rules introduced from 6 April 2025, OWR continues to apply for the first three years of UK residence for new arrivals, but the income that qualifies for OWR is taxed under the same principles as the new FIG regime. This means that unremitted foreign employment income is sheltered from UK tax during the relief period, but must be tracked carefully for future remittances.

Key Considerations and Traps

OWR only applies to employment income, not to investment income, capital gains, or self-employment profits. If you are a director of a UK company, HMRC may argue that your duties are UK duties even if you are physically overseas when performing them. The distinction between UK and overseas duties is a common area of enquiry.

The relief also requires that you do not bring the overseas earnings into the UK in the same tax year they are earned. If you do remit them, they become taxable in that year. Planning the timing and method of remittances is an important part of managing your UK tax position.

If you change employer during the OWR period, the relief continues provided the new employment also has non-UK duties. However, the three-year window runs from your first tax year of UK residence, not from the start of each employment.

Practical Steps

To make the most of OWR, set up a dedicated overseas bank account to receive your foreign employment income. Do not use this account for UK expenditure or transfer funds to a UK account without professional advice. Keep a work diary, retain travel receipts, and ensure your employment contract clearly sets out your duties and where they are performed.

If you are moving to the UK for work, plan your start date carefully. Arriving early in the tax year gives you the maximum benefit from the three-year relief period. Conversely, arriving late in the tax year may mean you lose part of that year's relief if the number of overseas workdays is limited.

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