Understanding the new HMRC rules for conveyancers and SDLT

When you buy a property, managing the legal and financial paperwork is a crucial part of the process. One of the key financial steps is managing your Stamp Duty Land Tax (SDLT). Recently, HM Revenue & Customs (HMRC) announced upcoming regulatory changes that will alter how legal professionals interact with them regarding these payments.

This article explains the upcoming HMRC changes, what they mean for property buyers in England and how our firm is preparing to keep your transaction moving efficiently.

What the HMRC tax adviser changes involve

Starting in May 2026, HMRC is implementing a mandatory registration regime for professionals who submit tax returns on behalf of clients. Under these new rules, any firm interacting with HMRC for this purpose must officially register as a "tax adviser" and meet specific minimum standards.

In residential conveyancing, solicitors regularly handle SDLT for their clients. The process involves calculating the tax owed, filing the SDLT return and arranging the payment to HMRC upon completion. Conveyancers perform these tasks, so HMRC will classify them as tax advisers under the new framework. This designation applies even though the primary service being provided is property law, rather than general financial planning.

How this impacts your property transaction

For most buyers, these changes will happen entirely behind the scenes. The actual process of calculating and paying your SDLT during a property purchase will look very similar to how it does today. However, the new regulations are important because they require law firms to be proactive.

If a conveyancing firm fails to register with HMRC in a timely manner, they may lose the ability to submit SDLT returns. This could lead to severe delays in property transactions, difficulties in securing the necessary tax certificates and complications with registering the property at the Land Registry.

By ensuring complete compliance well ahead of the deadline, we protect our clients from unnecessary delays and ensure that every property purchase proceeds without administrative setbacks.

The scope of our tax services

The new "tax adviser" label might suggest that conveyancers will offer broader financial advice. However, it is important to understand the specific boundaries of this role within a property transaction. Our focus remains firmly on facilitating your property purchase with clear, tailored legal solutions.

When acting on your behalf during a residential property transaction, our SDLT services include:

• Calculating the amount of Stamp Duty Land Tax due on your specific property purchase.

• Submitting the formal SDLT return to HMRC on your behalf.

• Arranging the transfer of funds to pay the tax liability at the point of completion.

We do not provide wider tax advice, such as guidance on capital gains tax, income tax or complex trust taxation. Our fee structures remain transparent and upfront, ensuring you have complete financial clarity regarding what is included in your conveyancing retainer.

Moving forward with confidence

While regulatory shifts can sound complex, they are ultimately designed to raise standards across the sector. Although these rules add a new administrative requirement for law firms, they are an essential safeguard that ensures correct procedures are followed when handling your tax payments.

We understand that buying a house is a significant commitment. Our priority is to provide empathetic, supportive and efficient legal assistance throughout the entire process. We manage the regulatory complexities so that you can focus on the exciting aspects of your move.

If you are planning to buy or sell a property in Crowborough or the wider area, contact our residential property team today on 01892 662233 or email at us at reception@dwlaw-online.com to discuss how we can support your next move.

Written by Kira Meikle - Solicitor