Wrong SDLT Payment Reference? What to Do | SKN
Used the wrong SDLT payment reference? Learn what HMRC clarified, how to resolve a payment query and which records to check with SKN Chartered Accountants.
Used the wrong SDLT payment reference? HMRC says your payment may be delayed or allocated to another tax bill. If that happens, contact HMRC to ask for it to be moved. Do not ignore a reminder simply because the money has left your bank.
Information checked on 25 September 2026.
What has HMRC changed this week?
On 24 September 2026, HMRC updated its Stamp Duty Land Tax payment guidance to clarify the consequences of using an incorrect reference and how to request reallocation. This is a payment-administration clarification, not a new tax rate, relief or filing deadline.
The practical lesson is straightforward: treat checking the reference as a separate completion task, alongside checking the amount and arranging the transfer.
Who should check their SDLT arrangements?
SDLT concerns land and property transactions in England and Northern Ireland. Scotland and Wales have different property transaction taxes. The GOV.UK overview explains the distinction and covers purchases of freeholds, leaseholds and certain transfers involving payment.
This checklist is particularly useful for landlords purchasing property, companies acquiring premises and individual buyers. A solicitor or conveyancer will often handle the return and payment, but it is worth confirming the agreed responsibilities before completion.
Which payment reference should I use?
Use the transaction’s 11-character reference: nine numbers and two letters. HMRC says it appears on the paper return or electronic SDLT5 certificate. Check it against the documents for this transaction, not a previous purchase. Follow the official payment instructions when arranging the transfer.
As a practical safeguard, ask a second person to compare the reference before authorising a substantial payment. Keep the payment confirmation with the property file so it can be found quickly if a query arrives.
Does the SDLT5 certificate prove the tax is paid?
HMRC’s return guidance, published on 26 June 2026, describes the SDLT5 as evidence that the return was sent. After an online submission, the representative receives the certificate and the Unique Transaction Reference Number, which must be used for payment.
Keep filing evidence and payment evidence separately. A useful completion checklist therefore asks two questions: has the return been submitted, and has the payment been correctly arranged? Do not use the answer to one as a substitute for checking the other.
What is the deadline?
Where a return and payment are required, both are due within 14 days of the transaction’s effective date. This is usually completion, but do not assume it always is. Confirm the date with the professional handling the transaction. The filing guidance also makes clear that using a representative does not remove your responsibility for a timely, accurate return.
HMRC advises allowing three working days for Bacs payments. Its payment guide gives the timing for other methods. Choose your method early enough to meet the deadline.
What should I do if a reminder arrives?
Our suggested preparation checklist is:
- Find the return, transaction reference and payment confirmation.
- Compare the reference actually sent with the correct reference.
- Record the payment date, amount and bank transaction identifier.
- Ask your conveyancer what was filed and what was paid.
- Keep a dated record of enquiries and HMRC’s response.
Use HMRC’s SDLT enquiries page, updated on 22 May 2026, for payment help. The published telephone number is 0300 200 3510; opening hours are Monday to Friday, 8:30am to 5pm, excluding bank holidays. HMRC warns that callers may face security questions, so check your personal details beforehand.
Frequently asked questions
Is this a new September SDLT charge?
No. The update clarifies payment handling; it does not announce a new charge.
Can I assume my solicitor has dealt with everything?
Ask for confirmation of both filing and payment. Agree responsibilities explicitly rather than relying on assumptions.
Does no tax to pay always mean no return?
No. Check the separate rules for transactions that do not need a return. A nil liability alone should not be used as your filing decision.
Should I ignore a reminder after paying?
No. Reconcile it with your records and seek help promptly if the position remains unclear.
Speak to SKN Chartered Accountants
Need help reviewing the tax implications of a property purchase or organising your records? Contact SKN Chartered Accountants on 0121 551 7626. Coordinate payment and conveyancing matters with the professional handling your transaction.
All linked official sources were opened and checked on 25 September 2026. The payment guide was first published on 30 October 2014; the no-return guidance was updated on 14 December 2017. The overview displayed no publication or update date.
General information only, not personalised tax or legal advice. Treatment depends on the transaction and your circumstances. Obtain professional advice before acting.