What is the disadvantage of an interest-only mortgage?

Asked by: Prof. Antoinette Dicki  |  Last update: December 23, 2025
Score: 4.2/5 (18 votes)

Some cons with this type of loan include: You're not building equity in the home: Building equity is important if you want your home to increase in value. With an interest-only loan, you aren't building equity on your home until you begin making payments towards the principal.

What is the downfall of interest-only mortgage?

Interest-only mortgages offer attractive benefits, such as lower monthly payments and increased cash flow for investments. However, they also come with significant risks, including the need for a large lump-sum payment at the end of the term and limited availability.

What is a main disadvantage of the interest-only loan?

Cons of interest-only loans

Higher interest rates: Interest-only loans typically come with higher interest rates compared to fully amortizing mortgages. Lenders consider these loans riskier due to the lack of principal reduction during the interest-only period.

Why would anyone get an interest-only mortgage?

This is because, in effect, you're only paying the interest charges on your mortgage loan. If someone has a short term need to preserve money, they could choose this, retain the mortgage and property and just service their interest-only loan before switching back to a repayment mortgage.

What are the main risks of an interest-only mortgage?

Disadvantages
  • You will need to pay off the full amount borrowed in one go.
  • You will pay more interest because the loan amount stays the same.
  • You will need to monitor your investments as well as your mortgage.
  • You could end up out of pocket if your repayment plan underperforms.

Why You Should Focus On Paying Down The Mortgage Over Investing

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Who benefits from interest-only mortgages?

Common candidates for an interest-only mortgage are people who aren't looking to own a home for the long-term — they may be frequent movers or are purchasing the home as a short-term investment. If you're looking to buy a second home, you may want to consider an interest-only loan.

What if I can't pay off my interest-only mortgage?

There are several different ways they could extend your mortgage, including: turning all or part of it into a repayment mortgage, with a later agreed full repayment date. letting you repay it with several agreed payments rather than just one lump sum.

How long can you do an interest-only mortgage?

There are limits to how long you can have interest only periods – the maximum interest only period at any one time is five years for owner occupiers and 10 years for investors (credit criteria applies). Interest only is not available in the last five years of your loan.

Can you refinance an interest-only mortgage?

After the interest-only period, you have the option to refinance, pay a lump sum, or begin paying down the principal. However, it's important to note that your monthly payments will increase significantly once you start paying both the principal and the interest.

Do banks still do interest-only mortgages?

Can I get an interest only mortgage? Interest only mortgages are available for home buyers, although they're not as common as repayment mortgages. To get one, you'll need a plan in place to repay what you owe when the mortgage ends. As with any other mortgage, whether you're approved is at the lender's discretion.

Can you pay principal on an interest-only loan?

If you want to make principal payments during the interest-only period, you can, but that's not a requirement of the loan. You'll usually see interest-only loans structured as 3/1, 5/1, 7/1, or 10/1 adjustable-rate mortgages (ARMs).

Is interest-only good or bad?

As always, it's a good idea to run this past your accountant first. While interest-only repayments are lower during the interest-only period, you'll end up paying more interest over the life of the loan. There are also risks involved with getting an interest-only repayment loan.

Can I change to an interest-only mortgage?

It is possible to switch your mortgage to an interest-only basis if you have sufficient equity in your property, an acceptable repayment plan and meet the lender's income requirements.

What happens after interest-only mortgage ends?

At the end of an interest-only mortgage, borrowers must repay the entire loan amount. Options include paying a lump sum, selling the property, remortgaging, or arranging extended repayment with the lender. Planning is crucial to avoid financial challenges and potential property repossession.

Why are mortgages only 30 years?

The 30-year fixed rate mortgage owes its existence to government actions to remedy dislocations in the mortgage market. The process started during the Great Depression, when the federal government created the Home Owner's Loan Corporation (HOLC) to buy defaulted mortgages and reinstate them.

What happens if you don't use all of your mortgage loan?

You may have to pay a certain percentage as a fee for the unused funds if you haven't used the funds for at least 6 months. You'll be pay a higher interest rate for the idle funds. Your ability to borrow additional funds in the future could be difficult depending on how much extra you borrowed for the home loan.

Is it wise to get an interest-only mortgage?

Going interest-only likely wins if you need a significant amount of short-term help. That's because it generally reduces your monthly bills by a greater amount. HOWEVER, you pay for it in the long-run as it will likely add more to the total cost of your mortgage.

What is the minimum down payment for an interest-only mortgage?

To qualify for an interest-only mortgage loan, you'll likely need: A credit score above 700. A debt-to-income (DTI) ratio below 36% A down payment of at least 15% (depending on the lender)

Are interest-only loans tax deductible?

Advantages to Interest Only Loans

Tax Deductible – The interest you pay on a mortgage is a tax deduction which saves you money on your income taxes. Be sure to consult a licensed tax professional for any tax deductions you may be eligible for.

Can I pay off an interest-only mortgage early?

Overpayments directly reduce the outstanding loan balance, making the final repayment amount smaller or potentially allowing you to pay it off entirely before the term ends. When making overpayments, please be aware that you may have to pay an early repayment charge to your lender (if applicable).

How much can I borrow for interest-only mortgage?

We offer a range of products for customers looking to borrow up to 75% of the value of the property (loan to value or LTV). If you're looking to borrow up to 60% LTV, your whole mortgage can be interest only. Or you can take a Part & Part approach with any combination of your choice.

Can you offset an interest-only loan?

Yes; offset accounts can be linked to interest only loans. By keeping funds in an offset account, you can benefit from reduced interest expenses while enjoying lower monthly repayments during the interest only period.

What is the problem with interest-only mortgages?

The problem

With interest-only mortgages, the borrower makes no capital repayments on the loan, just interest. They are expected to have an investment plan in place to pay off the debt but some of these plans have been underperforming, while some borrowers never even set them up.

What happens when the interest on an interest-only mortgage is paid in full?

Here's what you have to keep in mind about interest-only mortgage loans. Once the interest-only period ends, your monthly payment goes up to account for the amount that you're now expected to pay toward the principal. Lenders want to make sure that buyers can handle the higher payment when the time comes.

Why you shouldn t pay off your mortgage early even if you can?

The money you save from not paying off your mortgage early can give you more financial flexibility. Investing extra funds can potentially earn higher returns than you would save on mortgage interest. With extra cash flow, you can work toward other financial goals, such as saving for retirement.