Almost 300,000 self assessment taxpayers filed their return in the first week of the new tax year, HMRC has revealed.
The early filers were almost 10 months ahead of the 31 January 2025 deadline.
Almost 70,000 people filed their return on the opening day of 6 April this year.
HMRC is encouraging people to file early and avoid the stress of last-minute filing.
The tax authority says early filing can also help with budgeting. A budget payment plan helps spread the cost of tax bills with weekly or monthly payments.
In addition, refunds of overpaid tax will be paid as soon as the return has been processed.
Myrtle Lloyd, HMRC's Director General for Customer Services, said:
'Filing your self assessment early means people can spend more time growing their business and doing the things they love, rather than worrying about their tax return.
'You too can join the thousands of customers who have already done their tax return for the 2023-24 tax year by searching 'self assessment' on GOV.UK and get started today.'
Internet link: HMRC press release