HMRC Reverses Decision: Phone Lines to Open on 31 January Tax Deadline
In a significant policy reversal, HM Revenue and Customs (HMRC) has confirmed it will operate telephone helplines on Saturday 31 January 2026, the critical self-assessment tax return filing deadline. This announcement marks a departure from earlier indications that phone services would not be available on that date.
Expanded Support Services for Taxpayers
The tax authority has also revealed plans to run an expanded digital service throughout the day, providing multiple channels of assistance for individuals navigating the filing process. The Labour Party government's tax department confirmed that both the Self Assessment and online service helpdesk helplines will be operational between 9am and 4pm on the deadline day.
HMRC advisers staffing these lines will focus on addressing common queries, with the capability to arrange callbacks for taxpayers requiring more detailed or complex support. This dual approach aims to manage expected high demand while ensuring critical assistance reaches those who need it most.
Urgent Need for Timely Submissions
According to HMRC data from early January, approximately 5.65 million people had yet to submit their self-assessment tax returns, while 6.36 million had already completed their submissions. This substantial gap highlights the pressing need for accessible support as the deadline approaches.
The consequences of missing the filing deadline are severe and financially punitive:
- An initial £100 penalty for late submission
- Additional daily charges of £10 after three months of delay
- Further penalties of up to 5% of the tax due if returns remain unfiled after six or twelve months
Payment Deadline Consequences
Separate from filing penalties, taxpayers face additional financial repercussions for late payments:
- A 5% penalty on any unpaid tax 30 days after the 31 January deadline
- Another 5% penalty at six months if tax remains unpaid
- A further 5% penalty at twelve months, plus accrued interest on the outstanding amount
Last year, more than one million people missed the self-assessment deadline, resulting in substantial financial penalties and unnecessary stress.
Expert Advice for Taxpayers
Claire Trott, head of advice at St. James's Place, emphasises the importance of timely action: "Even if you don't have full or complete information, it is better to submit your return as provisional and update it with complete or more accurate information at a later date."
She further warns: "Ignoring the deadlines can be very costly and will quickly add up, not to mention the additional stress this will cause."
This HMRC policy reversal represents a responsive approach to taxpayer needs during a period of significant administrative pressure, potentially helping millions avoid unnecessary penalties through improved access to guidance and support.
