September 25, 2022

First with the Alderney News

Revenue Service issues advice to temporary residents

2 min read

Guernsey’s Revenue Service is advising people who have chosen to temporarily work for their UK employer from here during the pandemic that basing themselves in the Island may have implications for their personal tax situation.

If an individual spends more than 90 days in Alderney and Guernsey (whin any calendar year, then they are resident for tax purposes in Guernsey.

They are required to register with the Revenue Service and file a personal tax return.

However, they may also continue to be tax resident in the UK (or another country).

Under a recently-updated Double Taxation Agreement, a tie-breaker clause will determine their place of residence for the treaty as being where the individual has the closer personal and economic ties, referred to as their “centre of vital interests”.

If that is the UK, then generally the individual will only be taxable in Guernsey on any Guernsey source income. However, if that individual spends more than 183 days in Guernsey working for a UK employer, during any 12 month period (so not just within a calendar year), then that income will be taxable in Guernsey. and the individual will need add a claim for double tax relief for any Guernsey tax paid on their UK tax return.

Anyone that has spent more than 90 days in Alderney & Guernsey in 2020 should register with the tax office at the earliest opportunity. This can be completed online at Penalties will be imposed if an individual fails to notify the Revenue Service by 14 July 2021.

The information requested will also be used to determine if there is also a
requirement to register for social security contribution purposes.

Generally, if an individual is working for a UK employer in Guernsey and continues to be ordinarily resident and liable for social security contributions in the UK, then they are only required to register for contributions if they have been in Guernsey for 52 consecutive weeks. If an individual is not employed, then they must register for contributions after they have been in Guernsey for 26 consecutive weeks.

A simplified tax return has been developed for those individuals who under the tie breaker have their “centre of vital interests” in the UK to minimise administration for them. The Revenue Service also explain that this will benefit UK residents who own second homes in Alderney and wish to spend more time at them.

More information on registering with the Revenue Service is available at or you can email

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