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General2026/27

What is BACs Payment? UK Definition 2026/27

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Updated April 2026

Quick Answer

Bank electronic transfer system used for salary payments and HMRC refunds.

Definition of BACs Payment

BACS (Bankers' Automated Clearing Services) is the UK's electronic bank transfer system used for regular payments like salaries, pensions, and benefits. BACS payments take 3 working days to clear, which is why you might receive your salary on a different day than the official payday.

HMRC uses BACS to issue tax refunds to your bank account. When you're owed a refund from Self Assessment, PAYE, or VAT, HMRC will send it via BACS if they have your bank details. Refunds typically arrive within 5-10 working days of processing.

BACS is also used for Direct Debit collections, including PAYE payments from employers to HMRC. It's free to send BACS payments, making it the standard method for business payroll.

BACs Payment — Key Facts for 2026/27

Processing Time3 working days
CostFree
Used ForSalaries, pensions, refunds
Daily Limit£20 million

How BACs Payment Works — Example

HMRC tax refund via BACS
  1. 1Self Assessment submitted: Monday 15th
  2. 2HMRC processes refund: Wednesday 17th
  3. 3BACS payment initiated: Thursday 18th
  4. 4Cleared to your account: Tuesday 23rd
  5. 5Total time: 5 working days

How BACs Payment Affects Your Tax

Understanding BACS timing helps you plan cash flow. If you're expecting a tax refund, allow 5-10 working days after HMRC confirms processing. For payroll, submitting BACS files on time ensures employees are paid correctly. Unlike Faster Payments (same day) or CHAPS (same day but expensive), BACS is free but slower.

Official HMRC Guidance on BACs Payment

For official guidance, refer to HMRC's documentation. Tax rules can change, so always verify current rates and thresholds on gov.uk.

HMRC: Tax refunds

Frequently Asked Questions about BACs Payment

Accuracy Note

This information is for guidance only and is based on 2026/27 tax year rates. Tax rules are complex and your circumstances may differ. For personal advice, consult a qualified accountant or tax adviser.