Can Stamp Duty Be Added to a Mortgage?

Can Stamp Duty Be Added To A Mortgage?

Stamp Duty Land Tax, often shortened to stamp duty or SDLT, is one of the main costs buyers need to budget for when purchasing a property in England or Northern Ireland.

In most cases, stamp duty is not simply “added to the mortgage” as a separate fee in the same way some mortgage arrangement fees can be added. However, it may be possible to borrow more on your mortgage and use more of your own cash to pay the stamp duty bill, provided the borrowing is affordable and the lender is comfortable with the overall loan-to-value.

This distinction is important. The lender is not usually paying the stamp duty for you. Instead, you may be increasing the mortgage amount, reducing the deposit you put in from your own funds, and keeping enough cash aside to pay the stamp duty and other purchase costs.

At Kerr & Watson, we help clients understand how stamp duty, deposit size, loan-to-value and affordability can affect their mortgage options before they commit to a purchase.

Can You Add Stamp Duty To Your Mortgage?

You cannot usually add stamp duty to your mortgage as a separate tax bill that the lender pays for you. Stamp duty is payable to HMRC, usually through your solicitor or conveyancer.

However, you may be able to structure your finances so that the mortgage borrowing is higher and some of your available cash is used to pay the stamp duty. Whether this works will depend on your deposit, affordability, property value and the lender’s maximum loan-to-value.

For example, if you were buying a property and had enough deposit to put down 20%, you might consider reducing your deposit and borrowing more so that you retain cash for stamp duty. This is only possible if the lender is willing to lend the higher amount and you still meet their affordability and criteria requirements.

How Does Borrowing More To Cover Stamp Duty Work?

The key issue is that stamp duty is not part of the property price itself. A lender will usually assess the mortgage based on the purchase price, property value, deposit, income, credit profile and affordability.

If you want to keep cash aside for stamp duty, you may need a higher mortgage. This means your loan-to-value could increase.

For example, if you are buying a property for £500,000 and originally planned to use a £100,000 deposit, your mortgage would be £400,000 at 80% loan-to-value. If you need to keep some of that cash back to pay stamp duty and other costs, your deposit may reduce and your mortgage may need to increase.

That could affect the products available, the interest rate, the monthly payment and whether the mortgage still fits the lender’s affordability assessment.

Example Of Using Mortgage Borrowing To Help With Stamp Duty

A buyer has £100,000 available and is purchasing a property for £500,000.

They may initially assume they can use the full £100,000 as a deposit. However, they also need to budget for stamp duty, legal fees, valuation fees, moving costs and any mortgage-related fees.

If the buyer uses part of their cash to pay stamp duty and costs, the deposit available for the mortgage may be lower. This could mean needing a larger mortgage, which may increase the loan-to-value and monthly payment.

This does not automatically mean the mortgage will be declined, but the lender will need to be satisfied that the increased borrowing is affordable and that the loan-to-value fits their criteria.

Why Loan-To-Value Matters

Loan-to-value, often shortened to LTV, is the mortgage amount compared with the property value.

If you borrow more so that you can keep cash aside for stamp duty, your loan-to-value may increase. This can matter because mortgage products are often priced in loan-to-value bands.

For example, a mortgage at 75% loan-to-value may have different rates available compared with a mortgage at 80%, 85% or 90% loan-to-value. Moving into a higher loan-to-value band could increase the interest rate or reduce the number of lenders available.

This is why it is important to compare the overall cost. Borrowing more may solve the short-term cash problem, but it may increase the monthly payment and total interest paid over the mortgage term.

Does Adding Stamp Duty To The Mortgage Cost More?

It can do.

If you increase your mortgage borrowing to keep cash available for stamp duty, you are likely to pay interest on that extra borrowing for as long as it remains on the mortgage. Over a 25, 30 or 35-year term, this can make the long-term cost much higher than the original stamp duty amount.

You also need to consider whether the higher borrowing changes the interest rate available. If borrowing more pushes the mortgage into a higher loan-to-value band, the overall mortgage product may become more expensive.

For some buyers, borrowing more may still be the right option. For others, it may be better to reduce the purchase budget, save a larger deposit, negotiate the price or review alternative options.

When Does Stamp Duty Need To Be Paid?

Stamp Duty Land Tax usually needs to be paid shortly after completion. In most cases, your solicitor or conveyancer will submit the SDLT return and arrange payment to HMRC as part of the completion process.

This means you need to have a clear plan for how the stamp duty will be paid before completion takes place. It is not something that can usually be dealt with later without risking penalties or interest.

You should confirm the exact amount and payment process with your solicitor or conveyancer before exchanging contracts.

Stamp Duty In England, Scotland And Wales

Stamp Duty Land Tax applies in England and Northern Ireland.

If you are buying in Scotland, the equivalent tax is Land and Buildings Transaction Tax. If you are buying in Wales, the equivalent tax is Land Transaction Tax. The rules, thresholds and rates are different, so it is important to check the correct system for where the property is located.

This page focuses mainly on SDLT for properties in England and Northern Ireland.

Stamp Duty For First-Time Buyers

First-time buyers may qualify for stamp duty relief, depending on the purchase price and whether all buyers meet the first-time buyer rules.

This can reduce the amount of stamp duty payable, but it does not always remove the cost entirely. If the property price is above the first-time buyer relief limit, standard SDLT rules may apply.

If you are relying on first-time buyer relief, you should check your position with your solicitor, especially if you have owned property before, inherited property, bought with someone else, or are buying jointly with a partner who is not a first-time buyer.

To see the stamp duty cost you can utilise our Stamp Duty Calculator.

Stamp Duty On Second Homes And Buy-To-Let Properties

Stamp duty can be higher if you are buying an additional residential property, such as a second home, buy-to-let or holiday home.

This can make the cash required at completion significantly higher. It may also affect how much deposit you have left for the mortgage and whether the lender’s affordability assessment still works.

If you are replacing your main residence but have not yet sold your previous home, the higher rates may still apply at completion. In some circumstances, a refund may be available if your previous main residence is sold within the required timeframe, but you should confirm this with your solicitor or tax adviser.

Can A Seller Pay Your Stamp Duty?

Sometimes a buyer may ask whether the seller can contribute towards stamp duty.

This is not impossible, but it needs to be handled carefully. If the seller is providing an incentive, allowance or contribution, the lender will usually need to know. The solicitor may also need to reflect this properly in the contract and report it to the lender.

A seller contribution could affect the lender’s view of the purchase price, valuation, deposit and overall transaction. You should not rely on a seller contribution without checking lender and solicitor requirements first.

Can A Mortgage Offer Include Stamp Duty?

A mortgage offer will usually confirm the mortgage amount, interest rate, term, repayment method and conditions of the loan. It does not normally mean the lender is paying your stamp duty bill separately.

If your mortgage amount is higher because you are keeping cash aside for stamp duty, that may be reflected in the borrowing amount. However, the responsibility for paying stamp duty remains part of the purchase process and is usually handled by your solicitor or conveyancer.

What Will Lenders Check?

If you want to borrow more so that you have enough cash to pay stamp duty, the lender will consider whether the higher mortgage is affordable.

They will usually look at your income, credit commitments, deposit, loan-to-value, credit history, age, mortgage term, property value and overall expenditure.

The lender may also consider the source of your deposit and whether you have enough money left after completion. If your cash position is very tight, this may raise questions, especially if there are other costs such as legal fees, moving costs, renovation work or furniture.

Having enough money for stamp duty is only one part of the picture. The lender needs to be comfortable that the mortgage remains sustainable after completion.

What Are The Risks Of Borrowing More For Stamp Duty?

The main risk is that you increase the mortgage balance and pay more interest over time.

A higher mortgage can also increase your monthly payment, reduce lender choice and potentially move you into a higher loan-to-value band. If interest rates rise in the future, the impact may be greater because the mortgage balance is higher than it otherwise would have been.

You should also consider your wider budget. Buying a property often comes with costs after completion, such as decorating, repairs, furniture, insurance, service charges or maintenance. Using all available cash for the purchase can leave limited room for unexpected expenses.

Borrowing more can be useful in the right circumstances, but it should be considered carefully rather than treated as an automatic solution.

Alternatives To Adding Stamp Duty To Your Mortgage

If stamp duty is making the purchase difficult, there may be other options to consider.

You could increase your deposit savings before buying, reduce the purchase price, negotiate with the seller, use gifted deposit funds, review whether any relief applies, or look at a lower loan-to-value mortgage if that gives access to a better rate.

In some cases, family support may be available. This could be through a gift, family-assisted mortgage arrangement or another structure, depending on the circumstances and lender criteria.

If you already own a property and are buying another, you may also need to review whether a sale, remortgage, further advance or second charge mortgage could help with the overall funding position.

The right option will depend on your purchase price, deposit, income, existing commitments and the type of property you are buying.

Should You Add Stamp Duty To Your Mortgage?

Whether it is sensible to borrow more to help cover stamp duty depends on your circumstances.

It may be worth considering if you have strong affordability, a suitable deposit, enough equity or savings, and the higher borrowing does not push you into a much more expensive mortgage product.

It may be less suitable if it leaves your budget too tight, increases the mortgage payment beyond a comfortable level, or significantly increases the total interest paid over the mortgage term.

The key is to compare the options before you apply. A small change in deposit or loan-to-value can sometimes make a meaningful difference to the mortgage products available.

Frequently Asked Questions About Adding Stamp Duty To A Mortgage

Can stamp duty be added to a mortgage?

Not usually as a separate item that the lender pays for you. However, you may be able to borrow more on the mortgage and use some of your own cash to pay the stamp duty, provided the lender agrees and the mortgage remains affordable.

Do lenders allow you to borrow extra for stamp duty?

Some lenders may allow higher borrowing where the overall application fits their criteria. However, this depends on affordability, loan-to-value, deposit size, property value and the purpose of borrowing.

Is stamp duty paid before or after completion?

Stamp duty is usually dealt with shortly after completion. Your solicitor or conveyancer will normally submit the SDLT return and arrange payment to HMRC on your behalf.

Will borrowing more for stamp duty increase my monthly payment?

Yes, if the mortgage amount is higher, the monthly payment is likely to increase. You may also pay more interest over the mortgage term.

Can stamp duty affect my mortgage rate?

Indirectly, yes. If keeping cash aside for stamp duty means you need a larger mortgage, your loan-to-value may increase. This could affect the products and rates available.

Can first-time buyers add stamp duty to a mortgage?

The same principle applies. First-time buyers may be able to borrow more if the lender agrees and the mortgage is affordable, but stamp duty itself is still a tax that needs to be paid as part of the purchase process. Some first-time buyers may qualify for relief depending on the property price and their circumstances.

Can stamp duty be added to a buy-to-let mortgage?

Stamp duty cannot usually be added as a separate tax bill, but some buyers may structure borrowing so they retain cash to pay it. Buy-to-let purchases can attract higher stamp duty costs, so it is important to calculate the total cash required before applying.

Can I pay stamp duty with a personal loan?

This can be difficult. Some lenders may not accept borrowed funds for deposit or purchase costs, and any personal loan will usually be included in the affordability assessment. You should check with a mortgage adviser before taking out credit to cover stamp duty.

What happens if I cannot afford the stamp duty?

If you cannot afford the stamp duty and other completion costs, you may need to reduce the purchase price, save more, review lender options, consider family support or reassess the structure of the mortgage. You should not exchange contracts unless you are confident the completion funds are available.

Conclusion

Stamp duty is an important cost to plan for when buying a property. It is not usually added to the mortgage as a separate charge, but it may be possible to borrow more and use some of your available cash to pay the stamp duty bill.

This approach needs careful consideration. Increasing the mortgage may affect affordability, loan-to-value, monthly payments, interest rate and the total amount repaid over the mortgage term.

Before committing to a purchase, it is sensible to calculate the stamp duty, legal fees, moving costs and mortgage costs together. This gives a clearer picture of how much cash you need and whether the purchase is affordable.

At Kerr & Watson, we help clients understand how stamp duty and purchase costs fit alongside their mortgage options, so they can make an informed decision before applying.

Speak to Kerr & Watson if you would like to discuss your mortgage and stamp duty options.