5 Money Mistakes That Could Cost You Thousands | Elevate

Arlan Davine • October 12, 2026

When it comes to money, it’s often not the big decisions that make the biggest difference. It’s the small things we do — or put off doing — that can quietly cost us thousands of dollars over the years.


You might be earning a good income, paying your bills and putting a little money aside when you can. But without a clear plan, it’s easy to miss opportunities to make your money work harder for you.


The good news? You don’t need to be earning a fortune or making complicated investments to improve your financial position. Sometimes, a few simple changes can make a real difference.


Here are five common money mistakes worth looking out for.


Letting your savings sit idle

Having money in savings is a great habit. But if your money is sitting in an account earning very little interest, inflation can gradually reduce what it can buy.


For example, imagine you have $20,000 sitting in an account earning 0.5% interest. If another account offered 4.5%, the difference would be around $800 in interest over the first year, before tax and assuming the rates remained unchanged.


That’s money you could have earned simply by choosing a more suitable account.


What you can do: Compare interest rates on your savings accounts and check whether your current account offers a competitive rate. If you have a home loan, it may also be worth exploring whether an offset account could help reduce the interest you pay.


The right option depends on your circumstances, so consider access to your money, account conditions and any fees before making a change.


Paying more interest than you need to

Interest on credit cards, personal loans and home loans can quietly eat into your income.


A credit card balance that carries over from month to month can be particularly costly.


You might feel like you're making progress by paying the minimum repayment, but a large portion of that money could be going towards interest rather than reducing the debt.


Your home loan is another area worth reviewing. Even a small difference in your interest rate can add up over the life of a large loan.


What you can do: Start by listing your debts, their interest rates and minimum repayments. Focus on paying down expensive debts while keeping up with all required repayments. If you have a mortgage, check whether your rate remains competitive and whether refinancing would genuinely save you money after fees and other costs.


You don't necessarily need a complicated debt strategy. You just need to know where your money is going and have a plan to reduce what you owe.


Putting off your superannuation

Superannuation can be easy to ignore, particularly when retirement feels decades away.


But time is one of the most valuable ingredients in building wealth. Investment returns can generate further returns over time — something commonly known as compound growth.


For example, a hypothetical $10,000 investment growing at an average of 6% a year would grow to approximately $32,000 over 20 years, before fees and tax. That's without adding another dollar.


Of course, investment returns aren't guaranteed, and superannuation investments can rise and fall in value. The example simply illustrates the potential benefit of giving your money time to grow.


Leaving your super untouched doesn't mean ignoring it altogether, though. Old accounts, unnecessary fees, unsuitable investment options or insurance that no longer meets your needs can affect your eventual retirement balance.


What you can do: Check your super balance, fees, investment option and any insurance attached to your account. Look for lost or multiple super accounts, but don't consolidate automatically — consider insurance benefits, fees and other implications first.


If retirement is still a long way off, a small amount of attention now can help put you in a better position later.


Failing to plan for the unexpected

Most of us plan for the things we want to happen. We save for holidays, a new car, renovations or the next family adventure.


But what happens if the car breaks down, the hot water system needs replacing or you suddenly can't work for a period of time?


Without a financial buffer, an unexpected expense can turn into credit card debt or force you to dip into money you've been saving for something else.


For families, the consequences can be even greater if the household relies heavily on one or two incomes.


What you can do: Build an emergency fund that reflects your household's expenses, income stability and circumstances. Even starting with a smaller target can help.


It's also worth reviewing your insurance arrangements, including income protection and life insurance where appropriate. Insurance isn't right for every situation in the same form, but understanding how your family would cope financially if something unexpected happened is an important part of planning.


A little preparation today can give you more options when life doesn't go to plan.


Making financial decisions without a clear plan

This is perhaps the biggest mistake of all.


You can have a decent income, a growing super balance and money in the bank, but still feel like you're not getting ahead.


That often happens when your financial decisions aren't working towards a shared goal.

You might be paying extra off your mortgage when you also need accessible savings.


You might be investing without considering your short-term plans. Or you might be putting off important decisions because you're unsure which option is best.


None of these decisions is necessarily wrong on its own. The problem is making them without understanding how they fit together.


What you can do: Start by identifying what matters most to you. Do you want to pay off your mortgage sooner, build wealth, help your children, prepare for retirement or simply feel more comfortable about your finances?


Once you know your priorities, you can make decisions with greater confidence and understand the trade-offs involved.


A financial plan doesn't have to be complicated. It should give you clarity about where you are now, where you want to be and the practical steps that can help you get there.


Small changes can make a big difference

You don't need to fix everything overnight.


Start by reviewing one savings account, checking your home loan rate or taking a closer look at your super. Then move on to the next step when you're ready.


The important thing is to avoid letting years go by without checking whether your money is working as hard as it could.


And remember, the best financial decision isn't always the one that makes you the most money. It's the one that helps you achieve your goals while giving you confidence in your financial future.


Want to make more of your money?

At Elevate Financial Planning, we help individuals and families make sense of their finances, understand their options and build a practical plan for the future.


Whether you're trying to get ahead, make the most of your savings or work towards retirement, sometimes a conversation is all it takes to get started.


Let's make your money work for you.

For personalised financial services and advice, speak with your Financial Advisor today at Elevate Financial Planning


- Arlan Davine
(Elevate Financial Planning)

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