Written and reviewed by John Pierre Saliba, Director and Senior Finance Broker, MFAA Accredited. Last reviewed 30 October 2026.
For cash flow gaps above roughly $20,000 that outlast a card's interest-free period, a business overdraft is usually better: limits up to $500,000, funds paid into your bank account, and interest only on the drawn balance. For small everyday spending cleared within 55 days, a credit card wins. Here's the honest comparison.
The key differences at a glance (2026)
| Feature | Business Overdraft | Business Credit Card |
|---|---|---|
| Security | Unsecured under $150,000 - no property required | Unsecured; directors' guarantees are standard |
| Credit limit | Up to $500,000 | Typically $5,000-$100,000 |
| Interest rate (2026) | From 14.55% p.a. indicative, charged on the drawn balance only | Typically 15-23% p.a. on carried balances |
| Interest-free period | None - interest from day of drawdown | Up to 55 days interest-free if paid in full |
| Fees | Line fee on the facility limit (often around 0.5-2% p.a.); no broker fee | Annual card fees typically $60-$450; cash advance fees; surcharges when paying suppliers by card |
| Reusability | Revolving - draw, repay, redraw without reapplying | Revolving - repay and spend again up to the limit |
| Credit score impact | One enquiry via broker; lender matched to your profile first | Card enquiry plus high utilisation can drag your score down |
| Cash access | Funds land in your bank account - pays wages, suppliers, ATO | Card payments only; cash advances attract higher rates and fees |
| Repayments | Fixed weekly (revolving) | Minimum monthly payment |
| Best for | Large, short-medium term cash flow gaps | Small, day-to-day business expenses |
| Rewards | None | Points, cashback, frequent flyer miles |
Overdraft rates start from 14.55% p.a. through OverdraftMe's 50+ lender panel and are indicative only - subject to change based on credit assessment, business profile, revenue, trading history and lender criteria. Credit card figures are market-typical ranges for Australian business cards in 2026.
Since 1 October 2026 merchants cannot surcharge card payments, and the ATO stops taking credit cards after 30 June 2027 (delayed from 30 November 2026). What the surcharge ban means for your business.
When a business overdraft wins
A business overdraft is significantly better than a credit card when:
- You need a large amount - credit cards rarely offer limits above $100,000. An overdraft can go to $500,000.
- The gap lasts more than 55 days - once you're past the interest-free period on a credit card, rates jump to 15-20%+. An overdraft's daily rate is typically far lower for medium-term borrowing.
- You need funds in your bank account - a credit card can't pay wages or transfer to suppliers. An overdraft can.
- You need predictable weekly repayments - minimum credit card payments don't reduce the principal meaningfully, creating a debt trap.
When a business credit card wins
A credit card can be better than an overdraft when:
- You can pay it off within 55 days - the interest-free period makes it genuinely free short-term credit
- You want rewards on business spending - points and frequent flyer miles on everyday expenses add up
- The amounts are small - for expenses under $5,000 that you'll repay quickly, a credit card is simpler
- You need a card for employee expenses - issuing staff cards on a business credit card account is easier than an overdraft
The smart approach: Many businesses use both. A credit card for day-to-day expenses (paid off monthly within the interest-free period), and a business overdraft for larger cash flow gaps. This maximises the interest-free period benefit while having a significant facility available for larger needs.
The cost comparison over 3 months
To illustrate the difference: if you draw $50,000 for 90 days on a business overdraft versus carrying $50,000 on a business credit card at 18% p.a.:
- Business overdraft (at a typical non-bank rate): approximately $3,000-$4,500 in interest + service fees
- Business credit card at 18% p.a.: approximately $2,219 in interest - but minimum payments wouldn't have cleared the balance, so in practice the debt would persist longer
For amounts above $20,000 held for more than 2 months, an overdraft is almost always the cheaper option. Model your exact numbers in the business overdraft repayment calculator, check current market pricing in the Business Overdraft Index 2026, or start with the full business overdraft guide. And if property security is the concern - facilities under $150,000 don't need it. See unsecured business overdraft.
Overdraft vs credit card interest rate: which is lower in 2026?
On headline rate alone the two products overlap. Business overdrafts through the OverdraftMe panel run 14.55% to 25% p.a. on the drawn balance, plus a line fee of 0.5% to 2% p.a. on the approved limit. Business credit cards typically charge 15% to 23% p.a. on balances carried past the interest-free period, plus an annual card fee of $60 to $450. The difference shows up in how the interest is calculated: a card is free for up to 55 days and then expensive on a balance that minimum payments barely reduce, while an overdraft charges from day one but only on what you have drawn, and fixed weekly repayments bring the balance down.
| Balance carried for 12 months | Business overdraft at 14.55% p.a. + 0.5% line fee | Business overdraft at 25% p.a. + 2% line fee | Business credit card at 15% p.a. + annual fee | Business credit card at 23% p.a. + annual fee |
|---|---|---|---|---|
| $20,000 | About $3,010 | About $5,400 | About $3,060 to $3,450 | About $4,660 to $5,050 |
| $50,000 | About $7,525 | About $13,500 | About $7,560 to $7,950 | About $11,560 to $11,950 |
Simple interest on a constant balance for 12 months, overdraft limit equal to the balance, card annual fee $60 to $450. Card limits above $50,000 are uncommon. Indicative only: overdraft pricing depends on credit assessment, business profile, revenue, trading history and lender criteria.
Read across the rows and the lesson is that the rate band you are approved into matters more than the product label. A business approved at the lower end of the overdraft panel pays less than almost any card; a business at the top of the panel pays about the same as a high-rate card. The overdraft still wins on limit, on paying wages and suppliers by transfer, and on repayments that actually clear the balance.
What's better, an overdraft or a credit card, for a small business?
Match the product to the size and length of the gap:
- $8,000 stock order, repaid from sales within 30 days: credit card. Inside the interest-free period it costs nothing and earns points.
- $35,000 wages gap while a client pays on 60-day terms: business overdraft. Funds land in your account, interest runs only on the drawn balance, and the facility is there again next month.
- ATO bill of $25,000 on a payment plan: business overdraft. The ATO stops accepting credit cards after 30 June 2027, and an overdraft clears the debt by transfer.
- Staff travel and fuel of $2,000 a month: credit card, with staff cards and a monthly clear-down.
If you cannot say with confidence that a balance will be cleared inside 55 days, treat it as overdraft territory. Facilities under $150,000 do not need property security: see the unsecured business overdraft guide for how limits are sized.
What is the difference between an overdraft and a credit card?
Four mechanical differences sit underneath the comparison:
- Where the money goes. An overdraft is attached to your business transaction account, so drawn funds pay anything a bank transfer or BPAY can pay. A card is a payment rail: it only works where cards are accepted, and cash advances attract higher rates and fees.
- How interest is calculated. Overdraft interest accrues daily on the drawn balance from the day you draw. Card interest is waived if the statement is paid in full by the due date, and charged on the whole carried balance if it is not.
- Limits and security. Overdrafts through the OverdraftMe panel run from $10,000 to $500,000, unsecured under $150,000. Business cards typically sit between $5,000 and $100,000, with directors' guarantees standard.
- Repayment structure. Overdrafts carry fixed weekly repayments that reduce the balance. Cards require a minimum monthly payment that can leave the principal untouched for years.
Frequently asked questions
What's better, an overdraft or a credit card?
For amounts above $20,000 held longer than the interest-free period, a business overdraft is usually better - higher limits (up to $500,000), funds paid directly into your bank account, and interest charged only on the drawn balance. For small everyday expenses you can clear within 55 days, a credit card is often the better tool.
What is the difference between an overdraft and a credit card?
A business credit card is a payment tool with an interest-free period and rewards, but low limits and high ongoing rates. A business overdraft is a cash flow facility - you draw real funds up to your approved limit, pay interest only on what you use, and can cover wages, suppliers and ATO obligations that a card cannot pay.
Can you overdraft a credit card?
Going over a credit card's limit is not an overdraft - most Australian business cards simply decline over-limit transactions, and any allowed excess attracts over-limit treatment on the card's terms. If your business regularly bumps against its card limit, that is the signal to put a proper business overdraft in place, with a limit sized to your revenue and interest only on what you draw.
Which has the lower interest rate, an overdraft or a credit card?
The ranges overlap: business overdrafts through our panel run 14.55% to 25% p.a. on the drawn balance, while business credit cards typically charge 15-23% p.a. on carried balances. The real difference is behaviour - a card is interest-free if cleared within its interest-free period but expensive on persistent balances, while an overdraft charges from day one but only on what you draw, with no surcharges when paying suppliers by transfer.
When is a business credit card better than an overdraft?
When the amounts are small, you can repay in full within the interest-free period (up to 55 days), you want rewards points on everyday spending, or you need staff expense cards. Once a balance persists beyond the interest-free period at typical card rates of 15-23% p.a., an overdraft is almost always cheaper.
Can I use a business overdraft like a credit card?
Partly. An overdraft sits on your business transaction account, so you can pay suppliers, wages and the ATO by transfer or BPAY and draw cash, which a card cannot do. What you do not get is an interest-free period or rewards points: interest accrues daily from the day you draw, only on the drawn balance. Many businesses keep a card for small purchases cleared monthly and an overdraft for everything larger.
Is a business overdraft cheaper than a credit card for a small business?
Not on rate alone, because the bands overlap: overdrafts through our panel run 14.55% to 25% p.a. plus a 0.5% to 2% line fee, and business cards charge 15% to 23% p.a. plus an annual fee once a balance is carried. On a $20,000 balance held for 12 months both land in roughly the $3,000 to $5,400 range. The overdraft is cheaper in practice because it allows larger limits, pays by transfer with no cash advance fees, and fixed weekly repayments reduce the balance instead of rolling it.
Should I replace my business credit card with an overdraft?
Replace it if you regularly carry a balance past the interest-free period, bump against the card limit, or need to pay wages, suppliers or the ATO by transfer. Keep the card if you clear it in full every month and value points or staff cards. Many businesses run both: card for small spend, overdraft for cash flow gaps. Check what you could access with the 2-minute eligibility check on our homepage.
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