Paying Your Tax Bill: A Professional’s Guide to 2026/27 UK Tax Payments

Ensuring clients meet their statutory obligations for paying your tax bill requires a clear understanding of HMRC’s updated payment processing rules and critical deadlines. Under the current regime, HMRC strongly prefers, and in some cases mandates, electronic payments to ensure efficiency, security, and certainty of receipt.

For Corporation Tax and related payments (including interest and penalties), electronic payment is strictly mandatory.  Taxpayers must use acceptable electronic methods such as Direct Debit, online or telephone bank transfers (Faster Payments, CHAPS, or Bacs), debit cards, or corporate credit cards.  While HMRC generally discourages cheques, taxpayers may still use them for certain taxes if they are not legally required to file and pay electronically.  A payment by cheque is treated as made on the day HMRC receives it, provided the cheque clears on its first presentation to the bank.

Statutory Payment Deadlines

Failing to meet payment deadlines exposes clients to immediate penalties. The statutory due dates vary significantly depending on the tax type.

Table: Key Tax Payment Deadlines

For VAT, the deadline for submitting the return and paying HMRC is usually the same.  Taxpayers must allow sufficient time for the payment to clear HMRC’s bank account by this due date.

“A final balancing payment where appropriate is payable on the next 31 January, at the same time the return is due. Any Capital Gains Tax liability is also due on 31 January after the end of the tax year.

Making Tax Digital for Income Tax (MTD ITSA) in 2026/27

The 2026/27 tax year marks the introduction of Making Tax Digital for Income Tax (MTD ITSA), applying from 6 April 2026 to sole traders and landlords with a qualifying income over £50,000.

Under MTD, taxpayers must submit quarterly updates using compatible software. The standard quarterly update deadlines are 7 August, 7 November, 7 February, and 7 May.  Crucially, while MTD changes reporting frequencies, it does not alter the underlying dates for paying your tax bill.  The final tax bill remains payable by 31 January following the tax year.  Furthermore, HMRC has confirmed they will not apply penalty points for late quarterly updates during the transitional 2026/27 tax year.

Payment Support: Budget Payment Plans and Time to Pay

When clients face difficulties paying their tax bill, HMRC provides structured support mechanisms.

The Budget Payment Plan (BPP) offers a voluntary, flexible method for Self Assessment customers to make regular weekly or monthly advance payments toward future liabilities.  These advance payments proactively reduce the final amount due on 31 January and 31 July.

If a client cannot pay an existing tax debt, you should negotiate a Time to Pay arrangement with HMRC.  HMRC prefers to secure these arrangements via Direct Debit to guarantee ongoing compliance.

Late Payment Penalties

HMRC enforces strict penalties for late payments. For Income Tax and Capital Gains Tax under Self Assessment, the penalty date falls 31 days after the statutory due date.

If the tax remains unpaid, the following penalty structure applies:

• 30 days late: An initial penalty of 5% of the outstanding tax liability.
• 5 months after the penalty date: A further 5% penalty on the remaining balance.
• 11 months after the penalty date: A final 5% penalty on the unpaid tax.

Taxpayers can avoid these penalties if they establish a reasonable excuse for the delay and rectify the failure without unreasonable delay once the excuse ends.

Consider reviewing the specific eligibility criteria for agreeing Time to Pay arrangements for Corporation Tax liabilities to better support distressed corporate clients in the current economic climate.