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HMRC integration

HMRC SDLT submissions

Submit Stamp Duty Land Tax returns directly to HMRC without leaving ProConvey. Returns are pre-populated from your case data, validated before submission, and your SDLT5 certificate is retrieved once accepted.

Conveyancer submitting SDLT return
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Stamp Duty Land Tax SDLT return filing

HMRC SDLT return filing

Submit SDLT1 returns directly to HMRC. ProConvey pre-populates returns from your case data including property details, transaction values, purchaser information, and local authority codes. You review, complete any remaining fields, and submit, eliminating manual re-entry and reducing filing errors.

  • Auto-populated from case data

    Property type, transaction value, effective date, purchaser details, and local authority codes are pulled directly from your case, so the SDLT1 is ready to review and submit in seconds.

  • SDLT calculations

  • One-click submission to HMRC

  • Real-time submission tracking

Supplementary SDLT form handling

Supplementary form handling

Complex transactions often require supplementary SDLT forms. ProConvey determines which forms are needed based on the transaction details and generates them alongside the SDLT1 for you to review and submit in a single workflow.

  • SDLT2: multiple buyers and sellers

    When a transaction involves more than one buyer or seller, the SDLT2 supplementary form is generated with details for each additional party pulled from the case, ready for you to review.

  • SDLT3: additional properties

  • SDLT4: company purchases and complex transactions

SDLT validation and compliance checking

Real-time validation and compliance

Catch errors before they reach HMRC. ProConvey validates every field against HMRC's technical specifications before submission, flagging missing data, incorrect formats, and compliance issues so your returns are accepted first time.

  • Pre-submission validation

    Every return is checked against HMRC requirements before submission. Missing effective dates, local authority numbers, purchaser identification, and declaration fields are flagged for you to correct.

  • Purchaser identification checks

  • Guided error resolution

SDLT5 certificate management

SDLT5 certificate management

Once HMRC accepts your return, the SDLT5 certificate is retrieved and linked to the relevant case. The certificate is required for HM Land Registry registration, and ProConvey ensures it is ready when you need it.

  • Certificate retrieval

    SDLT5 certificates are retrieved from HMRC upon successful submission and stored securely within your case documents.

  • Linked to your case

  • Ready for HM Land Registry

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Ready to get started?

Simplify your SDLT filing

Submit Stamp Duty Land Tax returns directly to HMRC from within ProConvey. Pre-populated from your case data, validated before submission, and ready for you to review and file.

Get started with ProConvey conveyancing software