Your Conveyancer's Stamp Duty Responsibilities

Who Is Legally Responsible?

FA 2003 s76(3) places the obligation to file the SDLT return and pay the tax on the "purchaser" — meaning the buyer. This is a fundamental point that many buyers miss: while your solicitor handles the mechanics, you are the legally responsible party.

In practice, this means that if your solicitor fails to file on time, makes an error in the return, or underpays the tax, HMRC will pursue the buyer for the outstanding tax, penalties, and interest — not the solicitor directly. Your remedy against the solicitor is a professional negligence claim, not a defence to HMRC's assessment.

The Solicitor's Role in SDLT

Your solicitor's SDLT obligations begin at the point of instruction — not just at completion. A competent conveyancer should:

1. Calculate SDLT at the outset — when reviewing the draft contract, confirm the SDLT due so you can budget accurately. This should appear in the initial cost estimate.
2. Advise on applicable reliefs — first-time buyer relief, multiple dwellings relief, charities relief, and other applicable exemptions. A solicitor who fails to claim an applicable relief has potentially cost you money.
3. Flag rate-change risk — if SDLT rates are known to change before a likely completion date, advise the buyer of the financial risk and potential mitigation options.
4. Include SDLT in the completion statement — the completion statement sent to the buyer before completion should show the exact SDLT amount to be collected.
5. File the SDLT1 return within 14 days — from the effective date (usually completion) under FA 2003 s76.
6. Pay the tax from client account — using the SDLT funds collected from the buyer before completion.
7. Obtain and forward the SDLT5 — keep for the Land Registry application and provide a copy to the buyer.

SRA Code of Conduct and SDLT

The Solicitors Regulation Authority (SRA) Code of Conduct 2019 governs the professional obligations of all SRA-regulated solicitors. Several principles are directly relevant to SDLT handling:

• Principle 2 (Uphold the rule of law): Solicitors must ensure clients comply with their legal obligations, including SDLT filing and payment requirements.
• Principle 4 (Act with honesty): The SDLT return must accurately reflect the transaction. Solicitors must not make false claims for relief or misstate the consideration.
• Principle 7 (Act in the client's best interests): This requires solicitors to maximise applicable reliefs, advise on rate-change risks, and ensure the client is not disadvantaged by incomplete or inaccurate advice.
• Paragraph 8.6 (Competence): Solicitors must only accept SDLT work they are competent to carry out. Complex SDLT structures (new builds, sub-sales, linked transactions) may require specialist advice.

Client Money and SDLT Funds

When your solicitor collects SDLT funds from you before completion, those funds must be held in a separate client account — not mixed with the firm's own money. This is governed by SRA Accounts Rules 2019 r2.1, which requires all client money to be held in a designated client account with a bank or building society.

The SRA Accounts Rules impose specific requirements:

• Client money must be paid into a client account promptly (r2.3)
• Client money must only be used for the specific purpose for which it was paid (r2.4)
• Solicitors must reconcile client accounts regularly (r8.3)
• Client money is protected if the firm becomes insolvent — it is not an asset of the firm

In practice, you should receive a completion statement from your solicitor before completion showing the SDLT amount you need to pay into the client account. This is typically included in the total completion monies alongside the balance of the purchase price.

Professional Indemnity Protection

All SRA-regulated solicitors must carry Professional Indemnity Insurance (PII) under the SRA Indemnity Insurance Rules. The minimum mandatory cover is:

• Sole practitioners: £2 million per claim
• Partnerships and incorporated practices: £3 million per claim

This PII covers claims arising from solicitor negligence, including SDLT errors. If your solicitor:

• Fails to claim an applicable SDLT relief (e.g., first-time buyer relief, multiple dwellings relief)
• Files the SDLT return late, causing penalties and interest
• Miscalculates the SDLT due (under or over)
• Fails to advise of a known rate-change risk that increased your SDLT bill

...and you suffer financial loss as a result, you have a potential professional negligence claim against the solicitor, recoverable from their PII insurer. The six-year limitation period for professional negligence claims (Limitation Act 1980 s2) applies.

Licensed Conveyancers (CLC)

Licensed conveyancers are regulated by the Council for Licensed Conveyancers (CLC) under the Administration of Justice Act 1985. The CLC Code of Conduct (2016, amended) sets out obligations broadly equivalent to the SRA Code, with specific focus on residential conveyancing.

Key points about CLC-regulated conveyancers:

• Must carry mandatory PII under the CLC Indemnity Insurance Rules (minimum £2 million per claim)
• Must hold client money in separate designated accounts under CLC Accounts Code
• Are specialist property practitioners — SDLT is within their core competence
• Complaints can be made to the CLC and then to the Legal Ombudsman
• Subject to CLC's practice conditions and annual licensing requirements

In terms of SDLT specifically, licensed conveyancers and solicitors have the same legal powers and obligations. The choice between them is usually a matter of price and breadth of service — licensed conveyancers may be cheaper but cannot handle complex non-property legal issues that sometimes arise in transactions.

What to Expect From Your Conveyancer

As a buyer, you should expect your conveyancer to do the following in relation to SDLT:

1. Confirm SDLT in the initial cost estimate — within 2–5 days of instruction, you should receive a written cost estimate including the estimated SDLT amount based on the agreed purchase price.
2. Ask about your buyer status — your solicitor should confirm whether you are a first-time buyer, whether you own other properties, and whether any reliefs apply, to ensure the correct rate is used.
3. Provide a completion statement — at least 5 working days before completion, a detailed statement showing the SDLT amount, the balance of purchase price, and all other costs due on completion.
4. File within 14 days of completion — confirm filing by sending you a copy of the SDLT5 certificate within 1–2 weeks of completion.
5. Answer questions — your solicitor should be able to explain the SDLT calculation and any reliefs claimed. If they cannot, escalate to a senior solicitor or tax specialist.

When Things Go Wrong

If your solicitor has made an SDLT error, the steps to take depend on the nature of the problem:

Choosing a Conveyancer

When selecting a conveyancer for your property purchase, consider these SDLT-specific factors in addition to general competence and price:

• SDLT experience: Ask whether they have handled transactions involving your buyer type (first-time buyer, second home, buy-to-let) and whether they advise on reliefs proactively.
• Speed of filing: Ask what their typical post-completion process is and how quickly they file SDLT returns. A firm that routinely files within 2–3 days is preferable to one that waits until day 12.
• Fee transparency: Confirm whether SDLT handling is included in the quoted fee or charged separately.
• SRA/CLC verification: Check the solicitor or licensed conveyancer's registration on the SRA Register (sra.org.uk) or CLC Register (clc-uk.org) before instructing.

See the stamp duty payment process guide for a full breakdown of what happens after completion, and exchange vs completion for when your SDLT liability arises.

Frequently Asked Questions