What to do at the end of the tax year (31 March)
At the end of the tax year (31 March), we send out change of circumstances (COC) letters. You'll get one if you earn a salary or wage and receive your entitlements as an annual lump sum. You'll also get one if you're self-employed and have to complete an individual tax return (IR3). Find out about the COC letter, check what you need to do at the end of the tax year, and read how the process works.
Do it now
Date published: 09 Mar 2007
Back to top