The warning comes as hundreds of thousands of Brits juggle work, payments, and taxes
HMRC deadlines for 2026
Brits who missed the Self Evaluation tax deadline have been urged to behave instantly – however to not name HMRC.
In a stark message on X (previously Twitter), HMRC mentioned anybody who has fallen behind ought to file their return on-line and pay any tax owed directly.
The tax authority warned: “Missed the Self Evaluation deadline? No have to name – Take motion instantly to file your return on-line and pay any tax owed.”

Sure taxpayers can’t use the web system (Picture: Getty)
HMRC additionally reminded first-time filers that they need to register for Self Evaluation earlier than utilizing the service. Anybody with an current account ought to guarantee it’s energetic to keep away from delays.
Sure taxpayers can’t use the web system, together with partnerships, trusts, estates, non-resident people, and another specialist circumstances. Business software program or paper kinds have to be used as an alternative.
To file, you’ll want your Distinctive Taxpayer Reference (UTR) and to sign up to the service. HMRC may additionally ask for ID, akin to a passport or driving licence, to verify your id.
The warning comes as hundreds of thousands of Brits juggle work, payments, and taxes – with penalties for late submission beginning at £100, rising shortly the longer returns are delayed.
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Associated articles
Missed the Self Evaluation deadline?
No have to name.
Take motion instantly to file your return on-line and pay any tax owed.
Get began beneath. https://t.co/jCwoJFqkUD pic.twitter.com/TfQWcvsFQq
— HM Income & Customs (@HMRCgovuk) February 10, 2026
Late fee penalties
Preliminary penalty: £100 fastened penalty instantly after the deadline, even if you happen to owe nothing.
Three months late: Further every day penalties: £10 per day, as much as a most of £900.
Six months late: Additional penalty: 5% of the tax you owe at this level.
12 months late: One other 5% penalty on the excellent tax, plus attainable extra penalties if HMRC considers the delay deliberate or careless.
HMRC additionally prices curiosity on unpaid tax from the due date till it’s paid. File your return on-line right here.


















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