Behind on Your Tax Bill? Here’s How HMRC Collects Unpaid Taxes

21 July 2025

Falling behind on your tax obligations can feel stressful — and understandably so. If you miss a payment deadline, HMRC has several ways to collect outstanding tax, ranging from gentle reminders to legal enforcement.

Understanding how the system works can help you stay in control, avoid penalties, and resolve issues before they escalate.

Pay on Time – Or Face Interest and Penalties

As a rule, tax payments must be made by their due dates. If you miss a deadline:

  • Interest will begin to accrue on the outstanding amount
  • Penalties may apply, depending on how long the debt remains unpaid

But HMRC is not without compassion. If you’re struggling to pay, you may be able to arrange instalments under the Time to Pay (TTP) scheme — ideally before the debt becomes due.

What Is Time to Pay?

The Time to Pay arrangement allows individuals and businesses facing temporary financial difficulties to spread their tax payments over several months.

Important things to know:

  • There is no automatic right to use this scheme
  • It must be agreed with HMRC
  • It’s best to request a TTP before the due date, but HMRC will consider late applications depending on your circumstances

Once agreed, you must keep up with the payment plan to avoid further action.

What Happens If You Don’t Engage with HMRC?

If no action is taken and no contact is made, HMRC begins its debt recovery process, usually around 30 days after a missed payment.

Step-by-step, this may include:

  1. Payment reminders – Sent via post, phone call, or text
  2. Further letters – Including final demands or Notices of Requirement to Pay, often between 30 and 90 days after the initial reminder
  3. Escalation – If ignored, HMRC may transfer the debt to their Debt Management and Banking department

Use of Debt Collection Agencies (DCAs)

If payment is still not made, HMRC may refer the debt to an external debt collection agency.

Key points:

  • DCAs use their own systems for letters and phone calls
  • They do not have access to HMRC’s internal tax records
  • They cannot deal with disputes over how much tax is owed — they only collect
  • A Time to Pay agreement for one tax (e.g. Corporation Tax) doesn’t cover all other taxes, such as Personal Tax or VAT

It’s not uncommon for taxpayers to be on a payment plan for one tax type while still receiving DCA letters for another.

Tax Recovery via PAYE Coding Adjustments

For employed individuals or pensioners, HMRC can recover tax debts by adjusting your PAYE tax code.

This means they deduct extra tax directly from your salary or pension.

Limits depend on earnings:

Annual EarningsMax Tax Deducted via Code
Under £30,000£3,000
Over £30,000Scales up to £17,000 (if earnings exceed £90,000)

This method is often used for Self Assessment balancing payments, tax credit overpayments, or enquiry settlements.However, PAYE coding out is limited to £3,000 for Self Assessment balancing payments — even if earnings are high.

Direct Recovery of Debts (DRD)

Reintroduced from 6 April 2025, HMRC’s Direct Recovery of Debts (DRD) power allows it to withdraw funds directly from your bank account — but only under strict conditions.

Key features of DRD:

  • Only applies to debts of over £1,000
  • At least £5,000 must be left in your bank account after funds are withdrawn (in most cases)
  • HMRC must visit you in person first
  • You get a 30-day notice window to object before money is taken

This process provides a final recourse for HMRC where contact is ignored or debts persist despite repeated reminders.

Legal Action and Court Proceedings

When all else fails, HMRC can take formal legal action.

This may include:

  • Magistrates’ court action for debts under £2,000
  • County Court or High Court proceedings for larger debts
  • Seeking a County Court Judgement (CCJ), which can affect your credit rating
  • For companies, HMRC may pursue a winding-up petition

In many cases, the threat of court action is enough to prompt payment, particularly where the reputational and financial risks are high.

What’s Next: Automation and Broader Powers?

HMRC is currently consulting on expanding its enforcement capabilities, including:

  • Automated recovery of smaller debts
  • Potential access to digital wallets
  • Collection via rental deposits or physical goods

These proposals will require further legislation but signal HMRC’s intent to modernise tax debt collection in the digital age.

Final Thoughts

If you’re behind on your tax bill, the worst thing you can do is ignore it. HMRC’s approach starts softly — with reminders and flexible payment plans — but can escalate rapidly to enforcement, bank account recovery, or even court action.

Engaging early, seeking a Time to Pay arrangement, and understanding your options could save you from stress, penalties, and long-term damage to your financial position.

At Yorkshire Accountancy, we support individuals and businesses who find themselves facing HMRC debts. Whether you need help negotiating a payment plan or disputing the amount owed, our team is here to offer calm, professional support when you need it most.

Partner note:

Ss66 and 68 TMA 1970

HMRC Guidance

https://www.gov.uk/guidance/what-will-happen-if-you-do-not-pay-your-tax-bill#hmrc-and-debt-collection-agencies

HMRC Debt Management and Banking Manual, including DMBM575000 – Pre-enforcement

HMRC PAYE Manual 14010

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