This guide is intended for informational purposes only. As a buy to let mortgage broker, we're not able to offer tax advice. Speak to a tax adviser if you need some tax guidance.
With various Stamp Duty rates to consider, it can be difficult to determine the exact amount you’ll need to pay on a particular property. In this guide, we’ll walk you through everything you need to know about paying Stamp Duty on a buy-to-let property
Buy to Let Stamp Duty
If you're a first-time landlord and new to the buy to let market, you'll need to get to grips with the various costs incurred from purchasing and owning a rental property. Stamp Duty is one of the most significant expenses when purchasing a buy to let property. This is a tax you must pay to the Government when buying a property.

How Much is Stamp Duty for Buy to Let Properties?
Buy-to-let properties have different Stamp Duty rates than traditional residential properties, with an additional 3% surcharge on top of standard rates, depending on the property's value. For example, a £300,000 purchase incurs £11,500 in Stamp Duty. This guide will explain the different rates, how to calculate what you'll pay, and whether you might qualify for exemptions, such as property transfers between spouses or purchases under £40,000.
How Is Buy to Let Stamp Duty Changing in 2025?
Buy to From 1st April 2025, buy-to-let Stamp Duty rates in England and Northern Ireland will increase, making property investment more expensive for landlords. The additional surcharge on buy-to-let properties will rise from 3% to 5%, applied on top of standard Stamp Duty rates.
Under the new structure:
- Properties up to £125,000 will be taxed at 5% (previously 3%).
- The portion from £125,001 to £250,000 will be taxed at 7%.
- The portion from £250,001 to £925,000 will remain at 10%.
- The portion from £925,001 to £1.5 million will remain at 15%.
- Any amount over £1.5 million will be taxed at 17%.
For example, purchasing a £300,000 buy-to-let property will result in £20,000 Stamp Duty, a significant increase from previous rates.
These changes aim to discourage speculative property investment while making homeownership more accessible for first-time buyers. Landlords should assess the financial impact and seek professional advice before making new investments.
Buy to Let Stamp Duty Calculator
With many different Stamp Duty rates, knowing the amount of Stamp Duty on a buy to let property can be difficult. Fortunately, our buy-to-let (BTL) Stamp Duty calculator takes the guesswork out of calculating Stamp Duty for rental properties. Just submit the purchase price of the property and the calculator will do the rest.
Calculate Your Stamp Duty
If you purchase a buy to let property in England or Northern Ireland, you'll pay an additional 5% on top of the Stamp Duty you would already be paying on a standard property.
Property Value | Standard Stamp Duty Rate 23/09/22 – 31/03/25 | Stamp Duty Rate Buy-to-Let 23/09/22 – 31/03/25 |
Up to £250,000 | 0% | 5% |
£250,001 - £925,000 | 5% | 13% |
£925,001 - £1,500,000 | 10% | 18% |
From £1,500,001 | 12% | 20% |
For example:
If you're purchasing a buy to let property for £350,000, the maximum rate of Stamp Duty is 13%. However, this is just for the amount of your property's value, that's over £250,000, which is £100,000. You'll pay an additional Stamp Duty of 5% on the first £250,000 and 13% on the outstanding £100,000. This means you'll pay:
- 5% on £250,000 = £12,500
- 13% on the remaining £100,000 = £13,000
- Total SDLT = £25,500
You can use this guide to calculate your Stamp Duty for your buy to let property or let us work it out with our Stamp Duty calculator.
Buy to Let Stamp Duty Exemptions
If you want to purchase a buy to let property, you'll typically have to pay Stamp Duty. However, there are some exemptions to this which could allow you to either reduce or avoid Stamp Duty on a buy to let, such as in the following examples.
Purchasing a Buy to Let Through a Limited Company
If you buy a rental property through a limited company, you may be able to pay less Stamp Duty compared to buying it as an individual. However, certain costs are associated with setting up and running a limited company, so you must consider these.
Buying a Buy to Let Priced Below the Stamp Duty Threshold
If you buy a property under £40,000, you don't have to pay any Stamp Duty.
You're a First Time Buyer
- If the buy to let property is your first purchase, you won't be required to pay the additional buy to let Stamp Duty. However, this will mean that you’ll no longer be eligible for a first time buyer Stamp Duty discount or exemption, as this is only for buyers who are actually living in the property. You'll instead pay the standard Stamp Duty rate.
Transferring Property Ownership
- If you wish to transfer the ownership of a buy to let property to your spouse or partner, you won't have to pay Stamp Duty on the property transfer.
Moving Home
- If you buy a new property to live in as your main residence while owning a buy to let property, you may receive an exemption or refund of the additional 5% surcharge if you sell the buy to let within 3 years of purchasing your new home.
These exemptions may not be applicable in all circumstances, so it's a good idea to speak to an independent mortgage broker for advice on your Stamp Duty obligations.
Buy to Let Stamp Duty FAQs
What Is a Buy to Let Mortgage?
A lender will base a buy to let mortgage on the rental income you receive from the tenants who rent the property from you rather than your personal income.
Why Is There a Higher Stamp Duty Tax on Buy to Let Properties?
In 2015, the Government introduced higher Stamp Duty rules on buy to let properties to tackle the housing crisis and make it easier for first time buyers to get on the property ladder. By making buy to let properties more expensive, the Government hopes to make them less appealing to property investors and ensure more properties are available for first time buyers. The new Stamp Duty rules were also intended to generate new revenue for the Government.
Do You Pay Stamp Duty on Buy to Let Property?
If the buy to let property is worth over £125,000 and the purchase means you own more than one property, you'll have to pay Stamp Duty. This Stamp Duty rate is a minimum 5% charge in addition to the Stamp Duty you'd already be required to pay. How much Stamp Duty you must pay will depend on the current rates and the purchase price of the buy to let property.
How Can a Broker Help with Stamp Duty Concerns?
Speaking to an independent mortgage broker is a good idea if you have any concerns regarding your Stamp Duty obligations when purchasing a buy to let property. A broker can assist with the following.
- Calculating Stamp Duty - a broker like John Charcol can help you calculate your Stamp Duty costs based on the property price and any additional charges, such as the 5% surcharge
- Identify ways to reduce costs - a broker can help you explore ways to reduce your Stamp Duty costs, such as structuring your buy to let purchase in a way that may qualify for Stamp Duty relief
- Personalised advice - a broker will use their knowledge and experience of the buy to let and mortgage market to give tailored advice to help you with your Stamp Duty calculation. They'll also be able to answer any questions you have concerning mortgage eligibility
- Access to a broader range of lenders - an independent broker like John Charcol has access to the whole market and can help you reach the right lenders for your needs
Can You Add Stamp Duty to a Buy to Let Mortgage?
Adding Stamp Duty costs to a buy to let mortgage is extremely rare. Most buy to let mortgage lenders require a deposit of around 20% to 25% of the property value to meet their maximum loan-to-value (LTV) ratio requirements of 75% to 80%. Adding Stamp Duty costs to your loan would mean increasing the LTV, which most lenders won't accept.
Can I Avoid Stamp Duty on a Second Property?
Avoiding having to pay Stamp Duty on a second property is only possible if the property is worth less than £40,000 or the share of your purchasing property is less than this amount. The only other way to avoid Stamp Duty on a second home is if you're buying a mobile home, caravan or houseboat. You may be able to claim back the Stamp Duty surcharge if you're purchasing a property to be your main residence without having sold your previous one and then selling your old property within 3 years of buying the new residence.
Can You Avoid Stamp Duty on Buy to Let?
You may be able to avoid paying Stamp Duty on a buy to let if its value falls below the Stamp Duty threshold of £125,000 (in England and Northern Ireland), you're purchasing it through a limited company, or you wish to transfer ownership to another person. If you're replacing your main residence before selling your buy to let property, you may get a refund on the 5% surcharge if you sell the buy to let within 3 years of purchasing your main home.
Are Buy to Let Mortgages Worthwhile in the UK?
Investing in buy to let properties can be an effective way of generating a regular income stream. However, it does involve certain risks, such as changes in interest rates, market fluctuations, tenancy vacancies or defaults. Additional costs are also associated with purchasing and owning rental properties, including mortgage repayments, maintenance and repairs and insurance. It's a good idea to get professional advice from an independent mortgage broker who can help you review your options and understand the risks and rewards involved.
How Can John Charcol Help You?
It’s crucial to carefully consider the costs of Buy-to-Let Stamp Duty before diving into building your property portfolio. While the potential for long-term gains is enticing, understanding the full financial impact of Stamp Duty is essential to ensuring your investment strategy is as cost-effective as possible. Making informed decisions early on can significantly impact the profitability of your portfolio.
To explore all your options and get expert, tailored advice on Buy-to-Let investments, it’s highly recommended that you speak to an independent mortgage broker like John Charcol.
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