Australians pay estimated $10 million daily in credit card interest

Australians pay estimated $10 million daily in credit card interest

Australian households are increasingly relying on credit to manage their monthly bills, resulting in a collective estimated expenditure of $10 million every day in credit card interest, according to Sally Tindall, data insights director at Canstar.

New data from the Reserve Bank of Australia (RBA) shows that in May, Australians charged an additional $1.1bn to their credit cards. This brought the total value of credit card transactions for that month to $29.9bn. In contrast, debit card transactions, where users spend their own funds, totaled $59.6bn for May, representing a decrease of $11m.

The RBA figures further reveal that Australians currently owe $19.4bn in debt that is accruing interest. Tindall noted that these funds could otherwise be directed toward everyday living costs, paying down mortgages, or savings.

The financial risk increases significantly for those who do not clear their balances. Tindall warned that the collective interest bill would surge from $10 million a day to approximately $55 million a day if Australians were to max out their credit cards and carry those balances at the current average rate.

While credit cards can be a tool for financial management, Tindall cautioned against the habit of carrying debt into the next month, where spending attracts an average interest rate of 18.61 per cent. She stated that Australians should aim for a credit card balance of $0 and warned that bank approval for a high credit limit is not a green light to keep spending.

The Cost of Daily Habits

Beyond institutional debt, other recurring habits and routine inefficiencies are draining household budgets. According to data from Finder, a fifth of Australians spend roughly $90 every 30 days on grooming and hair appointments, totaling $346 million nationally each month. Taylor Blackburn, a personal finance specialist at Finder, said some people are cutting back on essentials and savings to maintain these beauty standards.

Further financial leakage occurs through unoptimized daily routines. Some families may lose over $6,000 annually due to avoidable mistakes, such as paying peak energy rates instead of off-peak. With electricity averaging $0.28 per kWh during peak hours compared to $0.14 off-peak, the Australian Energy Market Commission found that 73% of households could save $340 annually by shifting appliance usage to off-peak periods.

Other significant monthly drains include:

• Food Waste: FoodWise Australia reports that households throw away $2,400 worth of food annually, or $200 monthly.
• Subscriptions: An average household pays $89 monthly for streaming and software. An ASIC MoneySmart study found 68% of Australians pay for services they rarely use.
• Transport: Poor planning costs the average family $156 monthly, with petrol averaging $1.65 per litre.
• Banking Inefficiencies: Families lose an average of $89 monthly through manual transaction costs, late fees, and missed interest.

The Impact of Interest Rates

These wasted expenditures are compounded by the broader economic environment. The RBA cash rate stood at 4.35% as of 6 May 2026, which makes the loss of any wasted dollar more impactful for the consumer.

Banking inefficiencies are particularly noted among the Big Four banks — Commonwealth, ANZ, Westpac, and NAB. For example, Commonwealth customers using non-CommBank ATMs are charged $2.50 per transaction. To avoid these costs, financial experts suggest automating fixed bill payments and using high-yield savings accounts from online banks like ING or UP.

To combat the $134 monthly loss attributed to impulse shopping, researchers suggest the 24-hour rule for non-essential purchases over $50 and the use of generic brands, which can be 30-40% cheaper than name brands.