Living between borders doesn’t mean your taxes become simple.
If your life takes you from country to country — or out at sea — your tax position can quickly become unclear.
And uncertainty is where mistakes happen.
Your answers depend on the Statutory Residence Test (SRT) — and getting this wrong can mean paying tax you didn’t need to.
HMRC can investigate and assess tax going back years. A residency miscalculation at the point of departure can resurface long after you’ve settled in.
Without correct planning, two countries can simultaneously and legitimately claim tax on the same earnings.
You must notify HMRC of residency changes even when no tax is due. Missing this triggers automatic penalties that compound over time.
The timing of asset disposals relative to your departure date can make an enormous difference. Once you’ve moved, that window closes permanently.
If you work at sea, you may be entitled to Seafarers Earnings Deduction (SED).
This can allow you to:
But SED is not automatic.
To qualify, you must meet strict rules around:
Miss one detail, and you could lose the benefit entirely.
Many nomads and seafarers:
Not because they’ve done anything wrong — but because the rules are complex and easy to misinterpret.
Your income might come from multiple sources:
Each of these can be taxed differently depending on:
Without a clear plan, it’s easy to lose control of your tax position.
You don’t need to guess your way through this.
With the right advice, you can:
Whether you’re a nomad or a seafarer, your tax position still matters.
The difference is having clarity before issues arise.
A short conversation can help you:
When your lifestyle is mobile, your tax advice needs to be grounded.
You can get clear, practical support tailored to how you live and work.
Speak to a UK expat tax specialist today
A UK resident becoming a “nomad” or seafarer is not automatically tax resident anywhere; their status depends on each country’s residence rules.
You may be non-resident in the UK and not resident elsewhere, but this depends heavily on days spent and connections to each country, and we are expert in advising on this
Leaving the UK does not automatically end your UK tax obligations.
You may still pay UK tax if you have:
If you become a nomad or seafarer, the UK generally only taxes your UK income and gains
We can work through all your income positions, the SRT and SYT applicable to you, and give you certainty on your taxes
Nomads – there is no single fixed number of days a “tax nomad” can spend in the UK. Under the Statutory Residence Test, it depends on days plus UK ties, and the more connections you have to the UK, the fewer days you can safely spend without triggering UK tax residence.
Seafarers – once you’ve spent enough days out of the UK for a year to attain the Seafarers Earnings Deduction (SED), you must keep a strict vigil on your UK days so that your HS205 allows you to retain the SED status.
We will advise you very carefully, and clearly so that it fully understood on your day counts
You need to tell HMRC as soon as your circumstances change—and report it formally after the tax year.
You should tell HMRC about:
We will handle all of your notifications to HRC and any ongoing tax reporting, so you know that this is all safe and taken care of
