Lenders assess a credit card on its limit, not on what you owe. A card with a $20,000 limit and a zero balance is treated as though you owe $20,000 and are paying it down. That single rule quietly removes tens of thousands of dollars from what people can borrow, and it is the fastest thing on the list to fix.
Why lenders do it
Because you could draw the full limit tomorrow. The lender is not assessing your habits, it is assessing your capacity to get into debt. So it takes the limit, applies a monthly repayment rate to it, and treats that as a commitment you carry indefinitely.
The rate applied varies by lender, commonly somewhere around 3 to 4 per cent of the limit per month. On a $20,000 limit that is roughly $600 to $800 a month of assumed repayment — money the lender decides cannot go towards a mortgage.
What that costs in borrowing power
As a rough shape: every $1,000 of credit card limit tends to cost somewhere in the region of $4,000 to $5,000 of borrowing capacity, depending on the lender and the rest of your position.
So a $20,000 limit sitting unused can be worth roughly $80,000 to $100,000 of the loan you were hoping for. Two cards and a store card, and it is often the difference between the house you want and the one you settle for.
Treat those numbers as an illustration rather than a promise — the exact effect depends on the lender, your income and your other commitments.
The fix, and how fast it works
- Close cards you do not use. Not “cut up the card” — actually close the account with the provider and get written confirmation.
- Reduce the limit on cards you keep. If you use a card for convenience and clear it monthly, you probably do not need a $25,000 limit. Dropping it to $5,000 recovers most of the capacity and you keep the card.
- Get the paperwork. Lenders want evidence of the closure or reduction, not your word for it. A closure letter, or a statement showing the new limit, does the job.
This is not a slow fix. Once the change is processed and evidenced, the capacity is back for your next application. It is the rare piece of advice where the work is an afternoon of phone calls and the payoff is measured in tens of thousands.
When not to close everything
- Keep an emergency facility if you rely on one. Closing every line of credit to maximise a loan and leaving yourself no buffer is not a win.
- Closures show on your credit file. A couple looks like sensible tidying. Six in the week before you apply looks like something else.
Buy-now-pay-later accounts get similar treatment from many lenders, and regular use shows in your bank statements even where there is no limit to count. Worth winding those down too if a purchase is coming.
Do it before you apply, not after
The sequence matters. Capacity is assessed at application, so a card closed the week after a decline does nothing for that file. If you are planning to buy in the next six months, the tidying belongs at the start.
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General information only — it does not take your objectives, financial situation or needs into account and is not credit assistance. Figures are illustrative; assessment rates and treatment vary between lenders and change over time. Easy Loan Finance is a Credit Representative (CRN 568863) of Beagle Finance Pty Ltd, Australian Credit Licence 383640.
