When borrowing money via a mortgage, there are two ways you can repay the loan.


With interest-only mortgages, only the interest on the loan is paid each month; not the capital borrowed. At the end of the mortgage term, for example 25 years, a landlord would owe the lender the amount borrowed and if they wanted to retain
the property, they would need to have a plan on how to repay the original loan.

Many landlords choose to borrow money to invest in property with an interest-only mortgage, planning to simply sell at the end of the term, at which point they will pay any tax due on capital gains and retain any equity. The interest-only cost of the mortgage is tax deductible.



Repayment mortgages will cost more each month.Mortgage calculator 300x221 - Should landlords choose a repayment or interest-only buy-to-let mortgage?

The repayment amount is made up of interest on the loan and paying back a portion of the amount borrowed.

Over time, as more and more of the original loan is paid off, the repayment amount reduces as the borrower’s equity increases. The mortgage repayments are structured so that at the end of the term, both the interest and the full amount borrowed are paid off in full.

The property is then owned outright.

To decide which mortgage option is best and whether a mortgage interest or repayment loan is the right choice, you will need to be clear on your investment objectives and take into consideration the tax implications of investing in property to let.


Mortgage interest and tax

When you own a property and let it out, you are essentially running a business. As such, there are certain costs that are tax deductible and one of these are the mortgage interest payments.

Because of this, most landlords who want to maximise both their rental income and the return on their property investment, take into account the tax benefits and tend to invest with some level of mortgage over the long term.

For example:

On an interest-only mortgage for £130,000 at an interest rate of 3 per cent, the mortgage will cost you £325 per month.

Assuming a monthly rental income of £700, after paying your mortgage costs, you will be left with £375.

If you are currently a 20 per cent tax-payer, because you can deduct the mortgage payment from the income you have to pay tax on, you are effectively saving yourself £65 (£325 x 20 per cent).

If you were a 40 per cent rate tax-payer, you would end up with a £130 saving.

On a £130,000 repayment mortgage on a repayment basis would cost £616 per month (for comparison purposes we have used a 3% interest rate and 25 year term, as above). Although the interest element can still be claimed against tax, the rental income received is significantly lower than with an interest-only mortgage.


What are your property investment objectives?

With an interest-only mortgage, a landlord would keep more of the monthly income but never pay off the loan; with a repayment mortgage the landlord owns the property outright at the end of the mortgage term.

For those who are investing to generate an income, the interest-only option may be best.

If it is capital growth and a lump sum that are required, or you want to pass on a fully-owned asset to your beneficiaries, a repayment mortgage may prove to be a better choice.