The UK tax year runs from April 6 – April 5. That sounded kind of odd to me, so I did a little research, and apparently it’s because of this:
On the old British Calendar the tax year began on March 25 (the old New Year’s Day). In order to ensure against losing revenue it was decided by the British Treasury that the tax year, which started on March 25 1752, would be of the usual length (365 days) and therefore it would end on April 4, the following tax year beginning on April 5.
Huh. Okay. Well, we’ve not yet experienced a UK tax season, but we do know that money is deducted from my partner’s paycheck every month, and presumably it is the correct amount. Watch this space in April / May for an update.