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Posted Sun, 15 Jan 2023 10:54:07 GMT by fcaz
Good morning, I will submit my tax return online before Jan 31st and was planning to attach a scan of the SA109 form there. Do I need to submit the SA109 form via post too, and - if so - to which address? Thank you very much, 
Posted Wed, 18 Jan 2023 14:44:13 GMT by HMRC Admin 19

You cannot submit your tax return in this way. The SA109 will not be captured.  

You will need to purchase 3rd party commercial software, to submit the tax return online with the residence section. A list of commercial software is available here:

Self Assessment commercial software suppliers

Your alternative is to complete a paper SA100 and SA109, along with any other supplementary pages. Paper tax returns received at this time of year will incur a £100 late filing penalty.

Self Assessment tax return forms

Thank you.

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