The income tax year ends today, which is Lady Day (The Annunciation) in the Julian calendar which was in use prior to 1750 and is still in use in some parts of the world and by the Orthodox Church.
The new tax year starts tomorrow. If you wish to claim a tax refund, then get your records together and let us have them.
If your tax bill at the end of July is larger than you think it should be, then again get your records together, give them to us, and we will get your tax return submitted before July so the payment can be reduced.