Both business credit cards and business overdrafts give you access to funds you don't currently have - but they're fundamentally different products designed for different situations. Here's an honest comparison to help you choose the right one.
The key differences at a glance
| Feature | Business Overdraft | Business Credit Card |
|---|---|---|
| Credit limit | Up to $500,000 | Typically $5,000–$100,000 |
| Interest rate | Lower - calculated daily on drawn amount | Higher - typically 15–20%+ p.a. |
| Interest-free period | None - interest from day of drawdown | Up to 55 days interest-free if paid in full |
| 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 |
| Application | Via broker, assessed on business profile | Bank - simpler approval process |
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.
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