23/06/2026
🚖 A Delayed Taxi from Heathrow Could Affect Your UK Tax Residency Status
Many people carefully track the number of days they spend in the UK, but few realise that a travel delay could have unexpected tax consequences.
Under the UK’s Statutory Residence Test, if you don’t meet the automatic residence or non-residence rules, your status may depend on your “sufficient ties” to the UK. The more ties you have, the fewer days you can spend in the UK before becoming UK tax resident.
One important tie is the Work Tie.
📌 You may have a Work Tie if you work in the UK for 3 hours or more on at least 40 days during the tax year.
What surprises many people is that business-related travel time can count as work.
For example, if you fly into the UK the evening before a business meeting, HMRC may regard you as working from the moment you land if your journey is for business purposes.
Imagine you already have 38 UK working days recorded during the tax year. You arrive at Heathrow at 7pm for a board meeting the next day, but long immigration queues and transport delays mean you don’t reach your hotel until after 10pm.
Because you have spent more than 3 hours travelling for business purposes, that day could count as an additional UK working day. Combined with your board meeting the following day, you may now have reached the 40-day threshold and created a Work Tie.
⚠️ If you have been calculating your UK residency position on the assumption that you did not have a Work Tie, this could have a significant impact on your tax residency status.
Key takeaway: If you are monitoring your UK days for tax purposes, build in a buffer. Something as simple as airport delays, immigration queues or a difficult journey from the airport could make a difference.
If your UK residency position is important to your tax planning, it’s worth reviewing your travel and working-day records regularly.