Tax Filing Deadlines
Miss these dates and HMRC will charge you penalties. Here's what you need to know.
Important Deadlines
31st January
Self Assessment Tax Return deadline. You must file by this date or face penalties. If you owe money, pay it by then too.
5th April
Tax year end. One financial year closes, and the next begins (6th April).
End of Month After Quarter
VAT payments (if VAT-registered). Quarterly VAT returns due 1 month after each quarter ends.
Miss the Deadline?
Late filing = £100 penalty immediately + 5% of tax owed after 3 months + extra penalties if still unpaid. Submit online to avoid paper form delays!
File Early
Don't wait until January. File in October or November to avoid the January rush, HMRC delays, and your own stress! 📅
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