HMRC Payment References Explained: How to Identify Corporation Tax, PAYE, VAT and Self Assessment Payments

A Unique Taxpayer Reference (UTR) identifies a taxpayer’s tax record. A payment reference tells HMRC where to allocate a payment. They are related for some taxes, but are not interchangeable. PAYE and VAT use different identifiers altogether.

An individual’s personal UTR and a limited company’s Corporation Tax UTR belong to different taxpayers, even if the individual owns the company. A Companies House company number, employer PAYE scheme reference or National Insurance number is not a substitute for the required bank-payment reference.

Keep a verified reference record for each client and tax account, with the source document and relevant period. Payroll setup can help you find saved employer details, but compare them with HMRC’s registration letter or online account before relying on them.

For the standard bank payment in HMRC’s Self Assessment bank-payment guidance, use the 10-digit UTR followed by the letter K. Our fictional example is 1234567890K: ten digits plus one letter, making 11 characters.

Find the reference in the person’s HMRC online account or on a Self Assessment payment reminder. Do not add A, use the company’s UTR or confuse the reference with a tax code.

The standard reference identifies the Self Assessment account; it does not by itself tell a bookkeeper whether a payment settled a balancing bill, a payment on account or an older debt. Compare the payment date and amount with the person’s actual Self Assessment statement.

HMRC’s Corporation Tax payment instructions require a 17-character reference for the accounting period you are paying. It changes with each accounting period. You can find it in the company’s Corporation Tax online account, on its notice to deliver a tax return or on HMRC reminders.

1234567890A00105A is HMRC’s documented example for accounting period number 5, reproduced here only for teaching. The first ten digits are the example UTR; the complete payment reference includes additional accounting-period information. The suffix is not simply a date you can construct from the year-end.

The example ends in A, as commonly seen in Corporation Tax references. An A suffix is not a standalone test for Corporation Tax: match the complete reference to the company’s HMRC accounting-period record rather than classifying a payment from its final letter.

Do not pay using 1234567890 alone, infer the suffix or reuse last year’s saved bank payee reference without checking. A correct-looking 17-character reference can still belong to the wrong company or period.

For ongoing support with company records and tax, see our limited company accounting service.

For ordinary employer PAYE payments, HMRC’s payment guidance says to use the 13-character Accounts Office reference without spaces. Our example is 123PA00012345. Find it on the employer registration letter or in the HMRC online account if enrolled for PAYE Online.

HMRC’s Accounts Office reference design guidance confirms the 13-character length and gives examples with different letters, including a final X. Our example is illustrative, not a rule that every Accounts Office reference must contain PA or end in digits.

The employer PAYE scheme reference, such as the fictional 123/A246, is different. It identifies the payroll scheme and contains a tax office number and a second part after the slash. Do not use it as the Accounts Office bank-payment reference. HMRC’s payroll reporting guidance lists these as separate fields.

An employer payment can cover several payroll liabilities; the narration alone does not split Income Tax, National Insurance or other amounts. Reconcile it with the payroll reports and HMRC PAYE account, rather than treating the whole bank payment as a new wages expense.

When HMRC’s early or late payment rules apply, add four digits to the 13-character Accounts Office reference: the last two digits of the tax year ending, followed by the tax-period number. The online payment service can work out the extra digits for you.

• 123PA000123452608 ends in 2608: 26 means the tax year ending 2026 (2025 to 2026), and 08 means tax month 8, from 6 November to 5 December 2025. It is an extended PAYE example, not a Corporation Tax reference.
• 123PA000123452502 ends in 2502: tax year ending 2025, tax month 02, covering 6 May to 5 June 2024.
• 123PA000123452512 ends in 2512: the same tax year, tax month 12, covering 6 March to 5 April 2025.

Tax month 01 starts on 6 April, not 1 January. The suffix identifies the liability period, not necessarily the bank transaction date. Quarterly payments use the tax month in which the quarter ends; annual payments follow HMRC’s separate instructions. Do not apply a monthly example blindly to a quarterly or annual payer.

These extended PAYE references are 17 characters — just like Corporation Tax references. Length alone cannot distinguish CT from PAYE. Confirm the Accounts Office reference and intended period against the employer’s records. Our payroll service can help review the records behind a payment.

For the VAT payments covered by HMRC’s alternative payment-method guidance, use the nine-digit VAT registration number without spaces. Our fictional example is 123456789. Find the real number in the business’s VAT online account or on its VAT registration certificate.

If paying a VAT surcharge or penalty, HMRC instead specifies a 14-character reference starting with X, found on the relevant letter. Do not replace it with the ordinary VAT number or invent the remaining characters. An X at the start of an unknown bank line is still not sufficient evidence by itself.

Match an ordinary VAT payment to the actual return, outstanding balance and HMRC payment record. The VAT registration number does not encode which return was paid. VAT and bookkeeping support is available through our VAT returns service.

For a single-payment Direct Debit, HMRC’s Class 1A instructions require a 17-character reference: the 13-character Accounts Office reference plus the two-digit tax year ending and the digits 13.

HMRC’s example, 123PA000123452413, ends in 2413. This refers to the 2023 to 2024 tax year and the Class 1A code 13. It does not mean an ordinary thirteenth payroll month.

Automatic collection is a different route: HMRC’s guidance describes payments appearing as “HMRC SDDS”. That narration is not enough to identify a liability on its own. Check the Class 1A return, collection notice and tax account. Follow the instructions for the actual payment method rather than assuming all Direct Debits display a typed reference in the same way.

Every date, amount and reference below is invented. The suggested investigation is not a conclusion until the taxpayer’s records confirm it.

1. 30 January 2025 · £850 out · HMRC 1234567890K. This resembles a personal Self Assessment payment. Match the personal UTR and HMRC statement. If a company bank account paid the director’s bill, do not post it automatically as company Corporation Tax.
2. 20 February 2025 · £2,400 out · HMRC 1234567890A00105A. Check the company UTR and full period-specific CT reference. The February payment date does not establish which accounting period was settled.
3. 18 February 2026 · £620 out · HMRC 123PA000123452608. Check the employer’s Accounts Office reference and tax month 08 of the year ending 2026: 6 November to 5 December 2025. This is an illustrative late PAYE payment, not CT merely because it has 17 characters. The February bank date does not change its liability period.
4. 7 August 2025 · £1,175 out · HMRC 123456789. This resembles an ordinary VAT payment. Confirm the VAT registration number and match the payment to the VAT account and return; do not infer the VAT quarter from the amount.
5. 22 July 2024 · £390 out · HMRC 123PA000123452413. Investigate Class 1A for 2023 to 2024, using the employer’s reference, return and payment evidence. Do not allocate it as payroll month 13.
6. 12 September 2025 · £500 out · “HMRC 123PA…” only. The reference is truncated. Obtain the full transaction details or payment confirmation. Leave classification unresolved and raise a query rather than guessing or sending another payment.

Start with the bank transaction, but do not let a suggested match or saved bank rule decide which tax was paid. A rule based only on “HMRC” could put PAYE, VAT, Corporation Tax and a director’s personal tax into the same account.

1. Recover the full reference. Compare the Xero or FreeAgent bank-feed description with the bank’s transaction details or payment confirmation. Preserve the original narration; do not fill missing characters from memory.
2. Verify taxpayer and tax account. Match the full reference against the appropriate HMRC account or letter. In particular, compare a 17-character reference with both the verified Accounts Office reference and the company’s full CT period reference before deciding.
3. Match the existing liability. Use the relevant VAT return, payroll reports, Corporation Tax provision or other supporting record. A tax payment normally settles an existing liability; posting it again as an expense may double-count a cost. The correct entry depends on what has already been recorded.
4. Check HMRC’s allocation. Compare the payment amount and bank date with the tax statement’s credited payment and period. A matching bank amount alone does not prove the right HMRC bill was settled.
5. Document exceptions. Keep uncertain transactions flagged for review. Record the source and reason for any corrected bookkeeping entry; obtain accountant approval for personal-tax or director’s-loan treatment where needed.

For example, 123PA000123452608 should prompt a PAYE account check, not an automatic Corporation Tax posting. Similarly, 1234567890K on a company bank feed requires a personal-tax and director’s-loan review, not a company-tax expense. No real client identifiers are needed to understand these checks.

1. Can you see the complete reference? No: obtain the bank’s full payment details. Do not classify from a shortened bank feed.
2. Which taxpayer’s verified details match? Compare with the client’s own personal UTR, company CT reference, Accounts Office reference or VAT number. No match: ask the client or accountant.
3. What does the relevant HMRC instruction require? Check K for standard Self Assessment; the full CT period reference; PAYE period digits where needed; the VAT letter for an X reference; or the Class 1A instructions for code 13.
4. Does the liability and period reconcile? Compare the tax statement, return or payroll report, amount, bank date and HMRC credited payment. Allow for the payment method’s processing time; a bank debit is not proof of allocation.
5. Is the bookkeeping treatment clear? Yes: allocate against the verified liability with supporting evidence. No: keep it flagged for review, preserve the original bank information and document the query.

This guide is not a universal reference-format rule for every HMRC tax, debt or payment method. Never classify on “HMRC”, amount or character count alone. Follow a specific HMRC demand or payment instruction where one applies.

A director’s Self Assessment bill is personal, not the company’s Corporation Tax bill. Conversely, a director can pay a company liability from a personal account. Identify whose tax was settled separately from whose bank account paid it. The entry may need a director’s loan account or another treatment; ask the accountant rather than assuming a deductible company expense.

Incorrect references risk delayed or misallocated payments. If the bank shows a payment but HMRC does not show it against the expected bill, check the complete reference and credited date first. Retain the bank confirmation and follow the relevant HMRC enquiry route linked in the official guidance to request a correction. Do not assume the payment is lost or make a duplicate without resolving the position.

For more on accessing the underlying records, see our HMRC Business Tax Account guide. Only use client records you are authorised to access; keep actual tax identifiers out of public examples and unsecured messages.

• Self Assessment: bank details and reference
• Corporation Tax: bank details and accounting-period reference
• HMRC signposts: documented Corporation Tax example
• PAYE: other payment methods
• PAYE: early and late payment reference numbers
• Payroll reporting: scheme and Accounts Office identifiers
• HMRC design guidance: Accounts Office reference format and where to find it
• VAT: other payment methods and surcharge/penalty references
• Class 1A National Insurance: Direct Debit references