Yes. When an enquiry is first submitted, a case is created but the values are not fixed. The details are only “locked” once the client has provided an e-signature confirming the information is correct, which happens after the initial calculation has been produced. Until that point, the case details can be amended and resubmitted for recalculation.

No. Our fee is charged per property transaction, not per individual calculation. If a signed certificate has already been produced and the transaction details subsequently change, a revised certificate can be generated without any additional fee.

Designed for legal professionals, our service operates on a flexible Pay-As-You-Go basis – with no subscriptions, user limits, or transaction commitments.

Our clear, three-tier pricing model ensures complete transparency, making 4Stamp the smart, reliable choice for delivering accurate, compliant SDLT advice to your clients.

If a client chooses not to proceed with our fee and we are therefore unable to verify the transaction details, this will be recorded on the certificate. In such cases, we will provide an SDLT or LTT calculation and issue a certificate for the client to sign. The responsibility for the accuracy of the calculation will rest solely with the client, as the value will not be covered by our professional indemnity insurance.

Where a client has obtained alternative advice and instructs 4Stamp to use that value while declining our own advice, we will note this on the certificate and proceed to generate the calculation and certificate for signature. In this scenario, liability for the calculation will also remain with the client, as it will not fall within the scope of our errors and omissions insurance.

In both scenarios the client remains liable for the initial Assess fee.

4Stamp is seamlessly embedded within the cloud-based 4Corners Property portal, combining specialist tax expertise with advanced technology to deliver a truly integrated, end-to-end solution—far beyond a simple digitised calculator. This robust platform provides solicitors with real-time access to all necessary updates, data, and supporting information, enabling the delivery of certified, accurate assessments of a purchaser’s Stamp Duty Land Tax liability with confidence and efficiency.