A kitchen renovation, a bathroom rebuild, or a full-house repaint can easily cost AUD 30,000 to AUD 80,000 — and for Australian frequent flyers, that spend represents the single largest points-earning opportunity most homeowners will ever encounter outside of buying the house itself. A well-structured credit card strategy during a renovation can generate 200,000 to 400,000 frequent flyer points on spending you were going to make anyway, enough for two return business class tickets to Europe or four to Asia. The key is sequencing the right cards, understanding which retailers code under bonus categories, and never carrying a balance past the interest-free period. This article provides a step-by-step framework for Australian homeowners undertaking renovations in 2026, covering card selection, timing, and the common traps that turn a points bonanza into an interest-rate disaster.
The Renovation Spending Landscape in Australia
Australian home renovation spending has remained elevated through 2026, with the Housing Industry Association reporting an average kitchen renovation cost of AUD 30,000 to AUD 45,000, bathroom renovations at AUD 18,000 to AUD 30,000, and whole-house internal repaints at AUD 8,000 to AUD 15,000. Tradespeople — electricians, plumbers, plasterers, tilers — typically accept payment by bank transfer rather than credit card, but materials, appliances, fixtures, and fittings are overwhelmingly purchased from retailers that accept credit cards and often trigger bonus category earning.
The material spend — at Bunnings, Reece, Harvey Norman, The Good Guys, and specialist tile and flooring retailers — typically accounts for 40% to 60% of total renovation cost. On a AUD 50,000 kitchen renovation, that is AUD 20,000 to AUD 30,000 of card-eligible spend. Tradespeople who accept card payments — an increasing number do, through portable EFTPOS terminals or invoicing platforms like Hipages — can push the card-eligible share above 80%. Before committing to a renovation budget, Australian homeowners should ask their builder or project manager which payments can be routed through a credit card and which must be paid by bank transfer.
Card Strategy One: 0% Purchase Cards for Interest-Free Financing
The most financially prudent approach combines points earning with interest-free financing. A 0% purchase rate card allows you to place renovation spending on the card and repay it over 18 to 24 months without interest. The cost is that most 0% purchase cards earn zero or minimal points.
The optimal sequence is to apply for a 0% purchase card as your financing vehicle and separately use points-earning cards for the initial purchases where you have the cash to pay the balance immediately. For example, purchase AUD 15,000 of kitchen appliances at Harvey Norman on a Bilt Palladium Card earning 1.5 Bilt Points per dollar for general spend, pay that balance in full when the statement arrives, and simultaneously place AUD 20,000 of tradie invoices that must be paid by bank transfer onto a 0% purchase card like the NAB Low Rate with a 20-month interest-free window. The total cost is the NAB card’s annual fee of AUD 59, and you earn 22,500 Bilt Points on the appliance purchase while financing the trade invoices interest-free.
Never carry a balance on a points-earning card. The interest rate on a Qantas Premier Platinum is 20.99%, which means one month of interest on a AUD 10,000 balance — approximately AUD 175 — wipes out the value of the 15,000 Qantas Points earned on that spend at any reasonable redemption valuation. Points earned on interest-bearing balances are poison.
Card Strategy Two: Sign-Up Bonus Stacking
If you have the cash to pay for the renovation without financing but want to maximise points, the sign-up bonus stacking strategy is far more lucrative than optimising category earning rates. A single sign-up bonus on the Qantas Premier Platinum typically awards 100,000 Qantas Points after spending AUD 4,000 in the first three months. The AmEx Qantas Ultimate card awards 90,000 Qantas Points for AUD 3,000 of spend. The Bilt Palladium’s welcome offer awards 40,000 Bilt Points for AUD 5,000 of spend.
By applying for three cards in sequence and directing renovation spending to meet each minimum spend requirement, an Australian homeowner can earn 230,000 points from sign-up bonuses alone — enough for two one-way business class awards from Sydney to Los Angeles on Qantas Classic Rewards. The category earning on the spend itself — typically 1 to 1.5 points per dollar — adds a further 30,000 to 60,000 points, but the bonuses dominate the total.
Timing is critical. Apply for the first card 30 days before the renovation spending begins, giving the card time to arrive and the minimum spend clock to start. Once the first card’s minimum spend is met — which on a renovation project may take only a week — apply for the second card. Most Australian card issuers will approve a second card if your credit score is good and your income supports the combined credit limits. Space the applications 60 to 90 days apart to avoid triggering the comprehensive credit reporting concerns that come with multiple applications in a short window.
Which Retailers Code Under Bonus Categories
The difference between earning 1 point per dollar and 3 to 5 points per dollar on renovation spending depends entirely on how the retailer codes its transactions in the credit card network. Australian hardware retailers present a mixed picture.
Bunnings Warehouse codes as a hardware and home improvement store on both Visa and Mastercard networks. It does not trigger the dining, travel, or grocery bonus categories on any Australian points-earning card. General spend rates — typically 1 to 1.5 points per dollar — apply. If you are using a card like the Bilt Palladium that earns 1.5 points per dollar on general spend, Bunnings purchases earn at that rate.
Harvey Norman, The Good Guys, and JB Hi-Fi code as electronics and appliance retailers and do not trigger elevated category bonuses on most cards. Appliances Online codes similarly. Specialist kitchen and bathroom showrooms vary — some code as general retail, some as home improvement, and some as professional services. The only reliable way to know is to make a small test purchase and check how it posts to your credit card statement before committing the full renovation spend.
Flooring retailers like Carpet Court and Choices Flooring, paint retailers like Dulux Trade Centres, and plumbing suppliers like Reece all code as general retail or trade supplies. None trigger elevated earning on Australian cards as of mid-2026. For the largest bonus-category earning on renovation spending, the most reliable strategy is to purchase Bunnings and other hardware gift cards at supermarkets — Woolworths, Coles, or IGA — where grocery bonus categories of 2 to 3 points per dollar apply on many cards. Bunnings gift cards purchased at Woolworths on a card earning 3 Qantas Points per dollar at supermarkets effectively convert Bunnings spend from 1 point to 3 points per dollar.
Avoiding the Common Renovation Card Traps
The first trap is putting renovation spending on a card without confirming your credit limit. A AUD 10,000 tile order that exceeds your card’s AUD 8,000 limit will be declined, and the embarrassment is secondary to the damage of losing a trade discount that required immediate payment. Contact your card issuer before the renovation begins and request a temporary credit limit increase. Most Australian banks will approve an increase for an existing customer with good repayment history, especially if you can document the renovation budget and your income.
The second trap is assuming your card’s purchase protection or extended warranty insurance covers renovation materials and appliances. Most Australian credit card insurances cover personal, domestic, and household goods but exclude items that form part of a building or structural renovation. A dishwasher purchased as a replacement appliance is typically covered. The same dishwasher purchased as part of a kitchen renovation may be excluded because it is considered a fixture. Read the insurance Product Disclosure Statement or call the insurer before relying on card-based insurance for renovation purchases.
The third trap is allowing 0% purchase card promotional periods to expire with an outstanding balance. Set calendar reminders 60 days, 30 days, and 7 days before the promotional period ends. The interest that accrues from the end of the promotional period is typically backdated to the original purchase date on some cards, meaning a AUD 15,000 balance carried one day past the end date can incur AUD 3,000 in retroactive interest. This is financially catastrophic and entirely avoidable with proper reminders.
Data Basis / Sources
- Housing Industry Association, Average Renovation Costs by Project Type, Australia, 2026
- NAB, Low Rate Credit Card 0% Purchase Offer Terms and Conditions, July 2026
- Bilt Rewards Australia, Palladium Card Earning Rates by Merchant Category, 2026
- Qantas Premier Platinum, Sign-Up Bonus Offer and Minimum Spend Requirements, 2026
- American Express Australia, Qantas Ultimate Card Welcome Offer, 2026
- Woolworths Group and Coles Group, Gift Card Range and Supermarket Merchant Category Codes, 2026
FAQ
Q: Can I get a credit card specifically for my renovation if I already hold several cards? A: Yes, but each new application triggers a credit enquiry that appears on your comprehensive credit report. Most Australian lenders view three to four enquiries within a 12-month period as moderate risk and will still approve applications if your income, existing credit utilisation, and repayment history are strong. If you have six or more enquiries in the past 12 months, approval rates decline significantly. Space renovation-related applications across the project timeline rather than clustering them in a single month.
Q: Which card earns the most points at Bunnings in Australia? A: No Australian credit card offers a Bunnings-specific bonus category as of July 2026. The highest earn rate at Bunnings through direct card spend is the Bilt Palladium’s 1.5 Bilt Points per dollar or the AmEx Platinum’s 1 MR point per dollar (0.5 airline miles after the 2:1 transfer). The workaround — purchasing Bunnings gift cards at Woolworths or Coles on a card that earns 2 to 3 points per dollar at supermarkets — is the highest-yield strategy and should be used for any large Bunnings purchase.
Q: Should I close credit cards after the renovation is complete and paid off? A: Not immediately. Closing cards reduces your total available credit and increases your credit utilisation ratio, which can temporarily lower your credit score. If the card has no annual fee or a low annual fee, keep it open for at least 12 months after the renovation is complete before closing. If it has a high annual fee — AUD 400 or more — and you do not intend to use the card, close it after confirming all renovation-related transactions have cleared and any associated insurance claims periods have expired.
Q: Can I use a balance transfer card to pay off renovation spending on a points card? A: Yes, and this is a legitimate strategy. You earn points on the initial spend through the points-earning card, then transfer the balance to a 0% balance transfer card to avoid interest. The balance transfer fee of 1% to 2% — AUD 150 to AUD 300 on a AUD 15,000 balance — is the cost of the strategy. Ensure the balance transfer card is from a different banking group than the points-earning card, as same-bank balance transfers are typically prohibited. Never use the balance transfer card for new purchases, as these accrue interest immediately at the standard rate.
Internal Link Suggestions
- 0% APR Credit Cards for Emergencies — the same financial discipline applies to renovation financing
- Bilt Palladium Card Review — the best general spend earning card for renovation purchases
- The Biggest Rewards Credit Cards in a Nutshell — which cards to apply for during a renovation project
- Transfer Timing Checklist for Award Bookings — converting renovation-earned points into actual flights
- Bilt Rewards Australia 2026 — earning on rent while renovating your own home