If you’re acting without a solicitor or conveyancer, you must submit a paper SDLT1 return. HMRC’s online “Stamp Taxes Online” service is not available to unrepresented individuals - it’s for solicitors/ tax agents only.
The process is as follows:
a. You need to order paper copy forms. They come with a reference number printed on so cannot be downloaded. You can obtain them either:
b. Complete Form SDLT1 carefully using HMRC’s guidance notes. The notes are sent out with the paper forms, but are also available online here. They are helpful and should be consulted in all cases if an SDLT return is needed.
You need details of the property, the parties, the amount paid, and the valid local authority code for the property which you can obtain here.
c. Pay any Duty – You can use the HMRC SDLT calculator to check the amount of SDLT if any that you have to pay.
if you have assessed that SDLT is payable (which will usually only be the case if the minimum SDLT threshold is exceeded – currently £125,000*, then you need to send HMRC a cheque (quoting the UTRN printed on your SDLT1 form on the back) or bank transfer (quoting the UTRN number printed on your SDLT1 form as a reference).
Search for “Pay SDLT online”, a .gov.uk service, and follow the instructions. Payment must be made within 14 days of completion, failing which a fine is imposed.
d. Post the return to HMRC’s SDLT at the address below (although you will be given a pre-addressed envelope:
BT Stamp Duty Land Tax
HM Revenue and Customs
BX9 1LT
We suggest using Royal Mail Tracked 24 Post, (not signed for). Keep a copy of the return and date on which payment was made.
e. Receive the SDLT5 certificate (your “submission receipt”).
HMRC sends this after processing. You’ll include SDLT5 in your Land Registry application. If anything’s missing, HMRC issues an SDLT8 query first.
f. Include the SDLT5 Submission Receipt with your application to HM Land Registry.
* Note that taking on mortgage debt counts as if cash were being paid so if you take on 50% of a property with £255,000 mortgage, with no cash being paid at all, SDLT would be triggered because £255,000 / 2 = £127,500. The SDLT due assuming the buyer didn’t also own other properties would be £50.