Tracey Emin
Heading for Provence in the new tax year?
The artist Tracy Emin has said she may move to the south of France, partly to avoid paying the new 50% top rate of tax when it starts next April.
She will not be the first person to move away to pay less tax.
The Rolling Stones moved to France for a while in the early 1970s.
More recently, formula one driver Lewis Hamilton moved to Switzerland, attracted partly by its willingness to cut special tax deals for the very wealthy.
And about six million UK citizens live abroad, many in places where the income tax rate is lower than in the UK, such as the many pensioners in Spain.
What are the rules?
The rules are not what they used to be. In fact, they are not really rules at all, but guidance from HM Revenue & Customs (HMRC), rather than hard-and-fast laws.
Until April this year, everything hinged on your physical presence in the UK.
If you moved abroad, you could largely avoid UK taxes on your income, so long as you did not come back to the UK for 183 days or more in any one year, and did not spend an annual average of 91 days or more here, over four years.
The guidance also said that the days you spent travelling into and out of the UK did not count towards those totals, allowing some people to come and go too frequently, abusing the system.
New guidance published in April has changed that.
Time spent travelling does now count if you are in the UK at midnight on those days.
And the Revenue may challenge your status if you still have strong connections with the UK while claiming to be resident abroad.
"The Revenue may try and say you were still resident and tax you as such because of the uncertainty about the rules," warns John Whiting, tax policy director at the Chartered Institute of Taxation (CIOT).
"The more complex your affairs are, and the more you keep coming back, the more difficult it is," he adds.
How strict is the new guidance now?
The emphasis is now on your remaining links with the UK, says Ronnie Ludwig at accountancy firm Saffery Champness.
If you want to be sure you will not be regarded as UK tax resident you need, in effect, to emigrate
Ronnie Ludwig, Saffery Champness
He says the Revenue may still try to tax you if you have too many fingers in too many pies back here in the UK.
"The big issue is having a property for your use, even if you pay rent, or if you have any economic interest here other than investments," he says.
"That could be if your main banking arrangements are still here, or if you have a share in a business in the UK or have UK credit cards or even mobile phones.
"Even being a member of a golf club can be fatal to your plans," he says.
"If you want to be sure you will not be regarded as UK tax resident, you need, in effect, to emigrate," says Mr Ludwig.