HMRC Regulatory Update: From May 2026, conveyancers filing SDLT returns must register as tax advisers.
From Complex Transaction to
Complete Confidence
In Under 5 Minutes
You send the invite in seconds. Your client completes the questionnaire. Get a fully indemnified calculation—or specialist review for complex cases—with the audit trail your CQS auditor expects.
You Shouldn't Need a Tax Degree to Calculate SDLT
SDLT has become absurdly complex. 49 reliefs. Constant rule changes. Edge cases that even HMRC struggles to clarify. The current options?
HMRC Calculator
Designed in 2003. Doesn't handle 37 of 49 current reliefs. No audit trail. No protection if wrong.
Manual Calculation
Time-consuming. Error-prone. Industry data suggests around 40% of returns contain mistakes—with significant consequences when errors occur.
Outsource to Specialist
£150-£300 per calculation. Slow turnaround. Doesn't scale. Still need to verify their work.
Generic Software
No indemnity. Black-box calculations. When it's wrong, you're liable.
SDLT Check is different.
You send the invite; your client completes the questionnaire. We automatically apply all relevant reliefs, show you exactly how we calculated every figure—and back it all with £5M indemnity coverage.
The Four-Step Process
How every calculation works
Send the Invite
Send the questionnaire to your client in seconds. They complete plain-English questions about the transaction—no SDLT expertise required.
Instant Calculation or Specialist Review
Once complete, the system either returns an instant calculation (standard cases) or flags the case for specialist review (non-standard). Most cases resolved within minutes; complex ones within 24–48 hours.
Review the Methodology
Review how each figure was calculated, with legislative references—useful for client queries and CQS audits.
Submit and Evidence the Filing
Submit the SDLT return and generate a full audit trail for your file and compliance requirements.
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