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The SA106 is a form that you attach to your main SA100 Self Assessment tax return form if you need to declare and pay tax on foreign income or profits from selling assets (property, shares, and so on) that are abroad.
You can download this form on HMRC’s website.
If you submit your tax return by paper, you have to print the SA106, fill it out, then post it to HMRC by 31st October. And don’t forget to attach the SA100 to it when you do this. You can’t submit your SA106 without it.
Of course, if you do your tax return online, you don’t need to worry about any of this. You can submit everything in one by 31st January of the following year.
There are some exceptions to having to fill out an SA106. If you earn foreign income from property, for instance, you don’t have to declare any annual income less than £1,000. This is covered by the property income allowance.
Here are some more examples:
If you’ve already paid tax on your foreign income, don’t worry. You’ll still need to declare it to HMRC but you can claim it back.
The Foreign Tax Credit Relief enables you to deduct the tax you’ve already paid from your UK tax bill.
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