Understanding cash flow is a critical element of the investment property game writes Michael Sloan. It can be the difference between a solid long-term investment and a costly mistake. So do your research – and get good advice – before you buy.

What is negative cash flow?

Often investment properties generate negative cash flow. That is, you must put money in each year to cover the difference between the total cost of the property (interest repayments, rates, insurance, maintenance, etc.) and the total income (rent and tax breaks). Investors are happy to do this because they expect a long-term profit. And over time the rental increases that accompany inflation should mean this ‘top-up’ is no longer necessary.

Unfortunately, some investors don’t know the cash flow of their property before they buy. They don’t realise something’s wrong until their cash flow dries up and they get the bad news from their accountant. So seek advice from your accountant before you buy, not after. Always do the numbers first.

Miscalculating cash flow

It’s easy to miscalculate cash flow. Your estimated rental income might be over-optimistic, and you might also assume full occupancy (ie. 52 weeks a year). Conversely, you might underestimate maintenance costs or insurance.

Investors who get the cash flow of their property wrong can quickly run into problems. They either have to raise additional cash to prop up their property each month (potentially putting them under great financial stress), or sell. Selling property under pressure is never ideal and these investors can lose a lot. Sadly, this is a common mistake.

Work out your cash flow

To understand the cash flow on a potential investment property, get your accountant to do the numbers for you (if they can’t, get a new accountant). The number one rule is: ‘Don’t buy a property without knowing what the cash flow is’.

Ensure your accountant has all the costs of holding the property, including rates, body corporate fees, insurance and property management fees. They can work out the interest, estimate depreciation and give you an idea of the cash flow. Have the property inspected and if possible see if you can check body corporate records, if required. This could help you find out about any big maintenance structural repairs planned.

If buying that property will put strain on your finances, then find a property with better cash flow. Also, when doing your figures, factor in possible interest rate rises and potential vacancies.

Further, if the company selling you a property provides a cash flow report, don’t take it as gospel. The figures can always be manipulated, so get your accountant to work through them.

Your key to staying safe in a sentence? Understand the cash flow before you buy.

A tip about tax

If you think that you will have a net rental loss (i.e. your deductions, including interest, depreciation and capital allowances exceed your rental income), you can improve your cash flow by applying to the Australian Tax Office (ATO) for a PAYG withholding variation. If the variation is approved, you may be able to reduce the tax taken out from each wage packet, rather than waiting till the end of the year to get a tax refund. Read about PAYG Withholding Variation here.


Important information

The information in this article has been written by Michael Sloan from The Successful Investor. While Mr Sloan has been careful to ensure the information is correct and accurate, Mr Sloan’s views are his own and do not necessarily represent those of National Australia Bank Limited ABN 12 004 044 937, AFSL and Australian Credit Licence 230686 (NAB). This information should not be relied upon as financial product advice as none of the information provided takes into account your personal objectives, financial situation or needs. NAB recommends you seek the counsel of an independent financial advisor before making any investment decision.

Request a complimentary financial planning consultation

Or call us on 1300 558 863 from 9am - 6pm Mon-Fri (AEST/ADST).

After more information?Other related articles

What's PAYG withholding variation — and why it matters

A tax break you can take advantage of all year round - PAYG withholding variation.

Using equity to buy an investment property

Want to buy an investment property using your home’s equity? Michael Sloan explains how to calculate your equity and how to use it.

5 essential investment property strategies

Entering the property market? Here are five things to think about before you buy an investment property.

After more information?Related products and services

Home loans

NAB offers flexible home loans to suit you whatever stage you’re at. Buying a home, investing, renovating, refinancing.

Home renovation loans

You’ve got a house now you want to make it a home. A NAB Personal Loan can help you realise your grand plans.

Landlord insurance

Your investment property deserves protection just like your home does. Sleep better at night knowing your investment property is covered by NAB’s Insurance for landlords.

Savings accounts

Whatever you're saving for, our savings accounts can help get you there sooner.

We're ready to help you

Call 13 78 79

Mon-Fri 8am - 7pm (AEST/ADST)
Sat-Sun 9am - 6pm (AEST/ADST)

Enquire online about a home loan today
Request a complimentary financial planning consultation