How much should you borrow to buy a house?

If you're looking to buy a house, how much should you borrow?

| More on:

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

How much should you borrow for a house? It's an important question because a house is the most expensive thing you'll buy whilst taking on lots of debt.

Banks like Commonwealth Bank of Australia (ASX: CBA), Westpac Banking Corp (ASX: WBC), Australia and New Zealand Banking Group (ASX: ANZ) and National Australia Bank Ltd (ASX: NAB) want to lend as much as possible.

Real estate agents like Mcgrath Ltd (ASX: MEA) want buyers to pay as much as possible for a property.

House prices are surging at the moment with investors and first home buyers suffering from FOMO. National house prices rose 1.7%, Sydney house prices rose 2.7% and Melbourne house prices increased by 2.2% in just November 2019 alone.

But home buyers should be careful about what they get themselves into. A mortgage is for 30 years, not just one or two years. It needs to be affordable for the entire period. 

a woman

Monthly Repayments 

Each household needs to ultimately decide what level of debt they're willing to sign up for. But there are some general guidelines which you can follow. It's generally a good idea to limit the mortgage payment and other property expenses to a max of around 30% of the monthly budget, 25% (or less) of the budget would be a more comfortable number.

With interest rates being so low you need to give yourself a bit of a buffer in-case rates rise. If your loan repayments are based on a 3% or 3.5% interest rate your budget should be able to cover the repayments if interest rates rose and sent the cost to 5% or 5.5%.

Total mortgage 

But, taking on debt is more than just the monthly repayment. Aussies are perhaps the most indebted country in the world with huge mortgages. Debt isn't just a made-up number, we need to eventually pay all of that debt back.

How much debt do you want to take on? Banks have their own limits of how much debt they're willing to lend compared to the borrower's income. So even if you want to borrow 20 times your income you'll be faced with the bank's own ratio limit. 

Taking on a $500,000 mortgage is much riskier for someone with $50,000 of annual income compared to someone with $100,000 of annual income. I think a debt to income limit of six to one is probably a decent idea with interest rates being so low, but it could be lower in regional areas and may need to be higher in Sydney.

Do you have to buy a house?

There's nothing to say that people must buy a property to live in. Some people are priced out of the property market, but long-term renting isn't all bad. Annual property expenses are lower, at least for the medium-term before inflation catches up. If the renter invests a lot into shares then their net worth may be able to keep up. Rent money may be dead money, but interest, building insurance, water rates, council rates and (if applicable) body corp fees are also 'dead money'.

Motley Fool contributor Tristan Harrison has no position in any of the stocks mentioned. 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 Personal Finance

Cubes with tax written on them on top of Australian dollar notes.
Tax

The FY26 tax return deadline is around the corner. How can I minimise my tax?

Legal ways to trim your bill before the ATO deadline.

Read more »

A pink piggybank sits in a pile of autumn leaves.
Personal Finance

Best money-saving techniques to build long-term wealth

Simple money habits that build lasting wealth.

Read more »

Frazzled couple sitting out their kitchen table trying to figure out their finances or taxes.
Tax

Your FY27 tax return will look different. Here's what changed and how to prepare

The FY27 tax return introduces three key changes that investors should be aware of.

Read more »

A person using a calculator.
Tax

Your tax rate just dropped. Here is exactly how much more you will take home from 1 July

From 1 July 2026, the tax rate on income between $18,201 and $45,000 dropped from 16% to 15%. Here's exactly…

Read more »

A woman has a thoughtful look on her face as she studies a fan of Australian 20 dollar bills she is holding on one hand while he rest her other hand on her chin in thought.
Personal Finance

How should I invest my money in FY27?

There are a few really good places to invest money in FY27.

Read more »

Cubes with tax written on them on top of Australian dollar notes.
Tax

Why the CGT changes may have handed this ASX ETF an advantage : Expert

Here's how the capital gains taxes impact investors.

Read more »

A toy house sits on a pile of Australian $100 notes.
Personal Finance

Should you buy property or stocks? Here's what you need to consider

Property and ASX shares have traded places as the better performer multiple times in recent years. Here is what to…

Read more »

A person using a calculator.
Tax

End of financial year is upon us. Here's what you should do before the deadline

With the end of the financial year almost here, here are some considerations surrounding ASX investors on superannuation contributions, Division…

Read more »