UBS warns of widespread interest-only mortgage defaults in the next few years

It is estimated that there are 1.5 million borrowers on IO loans worth nearly $500 billion which will convert to P&I loans over the next four years.

| More on:
a woman

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More

Investors in bank shares should be alarmed by a shocking warning from a leading broker that 1-in-5 mortgagees on an interest-only (IO) loan is at risk of defaulting over the next few years.

UBS says the stress will come when IO loans mature and revert to principle and interest (P&I) loans when repayments jump, according to a report in the Australian Financial Review.

It is estimated that there are 1.5 million borrowers on IO loans worth nearly $500 billion which will convert to P&I loans over the next four years.

According to ASIC's mortgage calculator, borrowers on an IO loan of $300,000 at 4% interest is likely to see their monthly repayments jump from around $1,000 to circa $1,700 (the longer your IO loan is for, the greater the increase when it converts to P&I).

In case you missed it, that's a 70% increase in mortgage repayments and that's not factoring in an increase in interest rates.

This probably explains why UBS believes 18% of respondents to its 2018 mortgage survey won't be able to meet their monthly repayments when their IO loan rolls over. That equates to around 270,000 defaults just on IO loans.

Throw in higher interest rates and falling property prices, and this default estimate might prove to be somewhat conservative. We've already seen almost all banks, including our two biggest mortgage lenders Commonwealth Bank of Australia (ASX: CBA) and Westpac Banking Corp (ASX: WBC), lift rates independent of the Reserve Bank of Australia.

It's also noteworthy that the big banks have been reducing their bad debt provisioning to boost profit growth in the past few reporting seasons. I will be keenly watching to see whether this trend reverses in the November profit season when Westpac, Australia and New Zealand Banking Group (ASX: ANZ) and National Australia Bank Ltd. (ASX: NAB) releases results.

One factor that could be compounding the IO loan issue is the general lack of understanding of the product. UBS was alarmed to find that a third of IO borrowers who are owner-occupiers had opted for the loan to benefit from negative gearing. Negative gearing is only available to investors.

Further, around 14% of these borrowers are house flippers. They plan to sell their homes at a profit before their IO loan expires. They probably missed the boat on this one.

While investors cannot afford to ignore this risk, banks may be able to manage the risk by extending IO loans. They are already curbing new IO loans and that could give them some flexibility to roll over these loans into another IO term loan over the next few years.

It's kicking the can down the road – but that's what central banks did during the GFC to get us out of the last mess.

Let's just hope our chickens are on a long walk before they come home to roost.

Motley Fool contributor Brendon Lau owns shares of Australia & New Zealand Banking Group Limited, National Australia Bank Limited, and Westpac Banking. The Motley Fool Australia owns shares of National Australia Bank Limited. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.

More on Bank Shares

View from below of a banker jumping for joy in the CBD surrounded by high-rise office buildings.
Bank Shares

3 reasons to buy NAB shares in 2026

The banking giant is still a good buy in my eyes.

Read more »

Nervous customer in discussions at a bank.
Bank Shares

What should you do with your CBA shares in 2026?

The business is still excellent, but the valuation leaves much less room for upside.

Read more »

Four businessmen in suits pose together in a martial arts style pose as if ready to engage in competition or spring into a fight.
Bank Shares

What happened with the big four ASX 200 bank stocks like ANZ and CBA shares in January?

Buying ANZ, NAB, Westpac or CBA shares? Here’s what happened in the month just past.

Read more »

Worried woman calculating domestic bills.
Bank Shares

Where will CBA shares be in 5 years?

CBA's next five years could be quite different to its last five...

Read more »

Small girl giving a fist bump with a piggy bank in front of her.
Bank Shares

Buying Westpac shares today? Here's the dividend yield you'll get

Westpac has a reputation as one of the ASX's most reliable providers of fat, fully franked dividends.

Read more »

A young girl looks up and balances a pencil on her nose, while thinking about a decision she has to make.
Opinions

Should I sell my CBA shares in 2026?

What's next for the banking giant this year?

Read more »

Worried woman calculating domestic bills.
Bank Shares

Big news is making Bank of Queensland shares fall today

There has been some big news out of this bank today.

Read more »

Time to sell ASX 200 shares written on a clock.
Bank Shares

Sell alert! Why this analyst is calling time on ANZ shares

A leading analyst foresees headwinds ahead for ANZ shares. But why?

Read more »