Commercial property SDLT: reserve the tax before the completion funds leave

Buying commercial property in England or Northern Ireland can create Stamp Duty Land Tax on the purchase price or lease premium and, for new leases, on the net present value of rent. The tax normally needs filing and payment within 14 days of the effective transaction date, so SDLT should sit inside the completion funds-flow from the start.

Current non-residential purchase rates are 0%, 2% and 5%

GOV.UK's current rates apply 0 percent to the first £150,000 of non-residential consideration, 2 percent to the portion from £150,001 to £250,000 and 5 percent to the portion above £250,000.

A £1 million freehold commercial purchase therefore creates SDLT of £39,500 before reliefs or special rules: £0 on the first £150,000, £2,000 on the next £100,000 and £37,500 on the remaining £750,000.

New non-residential leases can also have SDLT on rent NPV

For a new lease, SDLT can apply separately to the lease premium and to the net present value of rent. GOV.UK currently applies 0 percent up to £150,000 NPV, 1 percent from £150,001 to £5 million and 2 percent above £5 million.

Use HMRC's calculator or advisers because long leases, rent-free periods and variations can affect the calculation.

The SDLT return and payment are generally due within 14 days

Most land transactions require an SDLT return and payment within 14 days after the effective date, usually completion but sometimes another date under the rules.

Solicitors often handle the filing, but the buyer remains exposed if the tax cash is not available. Reserve the SDLT amount in the completion statement.

Separate purchase price, SDLT and adviser costs

A £5 million acquisition requires more than £5 million of cash. Add SDLT, Land Registry fees, legal costs, lender fees and any VAT due on the property transaction.

Do not draw a loan equal to the property price and assume taxes can be funded from next month's operating cash without modelling the impact.

Use the reference and payment route supplied for the SDLT transaction

The solicitor or HMRC process generates the transaction reference used to allocate payment. Keep the bank transfer confirmation with the submitted SDLT return.

For high-value property deals, check online payment limits before completion and use the bank's approved high-value route where necessary.

Scotland and Wales use different property taxes

SDLT applies to land transactions in England and Northern Ireland. Scotland uses Land and Buildings Transaction Tax and Wales uses Land Transaction Tax.

Do not use the SDLT rate table for a property merely because the buyer company is incorporated in England. The property's jurisdiction controls the land tax.

Worked example: a company buys an office for £1.5 million. Using the current non-residential rates, the first £150,000 is at 0 percent, the next £100,000 at 2 percent and the remaining £1.25 million at 5 percent, producing £64,500 of SDLT before any special relief or linked-transaction issue. That amount belongs in completion cash planning alongside the purchase price.

For a lease, budget separately for any premium and the NPV of rent. A nominally low lease premium can still create SDLT because a long or high-rent lease has a large NPV. The solicitor should provide the calculation before finance finalises the completion funding.

Keep the SDLT5 certificate or filing evidence with the property file. Future sale, refinancing or Land Registry work can require proof that the transaction tax process was completed correctly.

Where the property is VAT-elected, the buyer can also need to fund VAT at completion in addition to SDLT, subject to transfer-of-going-concern and other rules. The solicitor and tax adviser should therefore produce a complete completion tax schedule rather than finance assuming SDLT is the only tax cash.

Linked transactions and mixed-use classifications can alter SDLT treatment. Do not split one commercial acquisition into several payments and assume each receives a separate £150,000 zero-rate band. Use the legal transaction analysis, not the number of bank transfers.

For financed acquisitions, confirm whether the lender includes SDLT in the facility or expects the borrower to fund it from equity. Loan-to-value usually focuses on property value, so the tax can fall outside debt proceeds and materially increase the buyer's equity cheque at completion.

Where several properties are acquired together, ask advisers to test linked-transaction and multiple-property rules before final funds are arranged. The tax can change materially from a simple single-property calculation.

Use a completion-day checklist showing purchase price, lender drawdown, buyer equity, SDLT reserve, VAT where applicable, legal fees and Land Registry costs. Property completions involve several large payments and should be reconciled from one signed funds-flow rather than a series of independent bank instructions.