Situation 01

Buying an additional property

Whether the higher rates apply is not a question about how many properties you own. It is a question about what you hold on the day you complete, what you have disposed of, who else is party to the purchase and what the property actually is.

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The short answer

People describe this as a second home, a buy to let or an investment. None of those descriptions decides anything. What decides it is a defined test applied to your position at a defined moment, and small differences in dates, shares and ownership routinely move the answer by tens of thousands of pounds.

Where this usually goes wrong

These are the patterns we see most often. Each one is a situation where the obvious answer and the correct answer are different.

The disposal that had not completed

A sale that exchanges but has not completed by the effective date of the purchase is not the same as a sale that has. Chains slip. The order in which the two transactions actually complete can change the treatment entirely.

The interest nobody thought to mention

An inherited share, a property held on trust, a beneficial interest in a parent's house, an overseas apartment, a share bought years ago with a sibling. People do not think of these as owning a property. The test may well do.

The other party to the purchase

Where a purchase is joint, the position of every purchaser matters, and in some circumstances the position of a spouse or civil partner who is not on the title at all.

Assuming the surcharge is final

Where the surcharge was paid and circumstances later change, or where it was charged on a transaction that did not meet the conditions in the first place, there may be a route to correct it. Time limits apply and they are not generous.

Assuming the surcharge does not apply

This runs the other way too, and it is the more expensive mistake. A return filed at the standard rates where the higher rates were due exposes you to the tax, to interest and potentially to penalties.

The facts that decide it

If you want to know where you stand before you speak to anyone, these are the questions we will ask. Having the answers ready is most of the work.

  1. 01What is the effective date of the purchase?Usually completion, but not always. This is the moment the test is applied.
  2. 02What property interests are held on that date, anywhere in the world?Including shares, inherited interests, beneficial interests and property held through trusts.
  3. 03Has a previous main residence been disposed of, and exactly when?The date of disposal relative to the date of purchase is often the whole answer.
  4. 04Who are the purchasers, and what is each of their positions?Joint purchasers, spouses and civil partners are not looked at in isolation.
  5. 05Is the purchaser an individual, a company, a partnership or a trustee?The rules and the rates differ, and so does the analysis.
  6. 06What is actually being acquired?One dwelling, more than one, or something with land or a non-residential element.
  7. 07Are there other transactions with the same seller or connected parties?Linked transactions are looked at together, which can change both the rate and the base.
  8. 08Has a return already been filed, and on what basis?If so, the question becomes what can still be done and by when.

What we would want to see

The analysis is only as good as the documents behind it. For this situation, that normally means:

  • Draft or executed contract of sale
  • Title register and title plan
  • Completion statement, where available
  • Details of every property interest held
  • Evidence of any disposal and its date
  • Details of all purchasers and their positions
  • Any existing SDLT return and UTRN
  • Correspondence with the conveyancer on the point

Questions we get on this

I only own one other property. Does that count?

Possibly. The test is not about how many properties you think you own, it is about what interests are held at the effective date and what has been disposed of. A single inherited share can be enough to change the answer.

My partner owns a property but is not buying with me.

That does not automatically put it out of account. Where the parties are married or in a civil partnership, the position of the person who is not on the title can still be relevant. This is one of the more common surprises.

I have already completed and paid. Is it too late?

Not necessarily, but time limits apply and they differ depending on what needs to be done. The starting point is establishing what the correct figure was, not assuming a refund is available.

Will you just tell me what I want to hear?

No. Our fee is fixed and does not depend on the outcome, which means we have no interest in finding a saving that is not there. If the original return was right, we will tell you that in writing, and you will have a reasoned position on file if it is ever looked at.

This page is general information only and is not advice. It applies to transactions in England and Northern Ireland. Reviewed 16 August 2026.