Interest-only mortgages
With an interest-only mortgage, the payment you make to the mortgage lender each month comprises just the interest you owe them for that month. So you are not paying off any of the capital you owe.
When you take out an interest-only mortgage, you are supposed to also make a monthly payment into an Individual Savings Account, endowment or other investment. The hope is that the investment will then generate sufficient returns to pay off the capital sum you still owe at the end of the mortgage term.
However, there is no guarantee of this, so any interest-only mortgage carries an element of risk.
In recent years, increasing numbers of first-time buyers have taken out interest-only mortgages, and have just paid the interest, not paying any money into an investment. With high house prices, this is the only way some people have managed to afford to buy property. When taking out an interest-only mortgage and just paying the interest, they are relying on their property going up in value, being able to sell it a few years down the line for a profit, and then buying a property with a repayment mortgage.
Mortgage risks
There are a number of risks here. Firstly, house prices are not guaranteed to go up, and could even fall. Secondly, many people sort out their mortgage and then forget about it. If you never get around to converting your interest-only mortgage to a repayment-type, and you have no investment fund building up, there is a very real risk that you may get to the end of your 25 year mortgage term still owing all of the capital initially borrowed and with no way of repaying it.
Repayment mortgages
With a repayment-type mortgage, the monthly repayment you make to the lender each month consists of the interest you owe plus a little bit of the capital you owe. If you keep up all the repayments on your mortgage, you are guaranteed to have paid off the mortgage at the end of the term. Repayment-type mortgages are therefore the safest option, and are by far the most popular mortgage type in the UK.
Buy-to-let investors
Buy-to-let investors are the only borrowers who are advised to take out interest-only mortgages with no investment vehicle. That is because the rent covers your interest payments, and the long term plan is generally to sell the property in the future, and pay off the capital at that point.
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