Amend and resubmit tax returns

If you need to make any amendments to a return that has already been submitted, you must first cancel the submission.

Once cancelled, you can make amendments. The method varies slightly for each return.

Amend and resubmit a tax return (SA100)

Amend and resubmit a tax return (CT600)

Amend and resubmit a tax return (SA900)

Amend and resubmit a tax return (SA800)