We’ve had some queries about how SEISS grants are taxed. Here is a summary.
First they go on your return separately – in box 27.1 if you use the Short SA103, or box 70.1 if you use the full form. See Tax returns forms updated for Covid grants
Secondly, the first 3 grants on your 20-21 Self Assessment. The second 2 – based on current Government plans – go on to 21-22 in due course.
The grants count as income for Income Tax and NI but not VAT.
Other non SEISS Coronavirus government business support goes into box 10 on the Short SA103, or box 16 if you use the full form.