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Business overdraft vs line of credit: which is right for your business?
The main difference between a business overdraft and a line of credit is where the facility sits: an overdraft is attached to your trading account so the balance simply goes below zero and deposits repay it automatically, while a line of credit is a separate facility you draw from into your account and repay deliberately.
Overdraft vs Line of credit at a glance
| Business overdraft | Business line of credit | |
|---|---|---|
| What it is | A business overdraft is an approved limit attached to your business transaction account that lets the balance go below zero up to that limit, with interest charged only on the negative balance. It is designed to absorb short timing gaps, not to fund long-term purchases. | A business line of credit is an approved limit you can draw on, repay and redraw as needed, paying interest only on the amount used. It suits businesses whose funding needs rise and fall through the year. |
| Amount | $10,000 – $500,000 | $10,000 – $500,000 |
| Term | 12–12 months | 6–24 months |
| Indicative rate | 8.5% – 19.5% p.a. | 11.5% – 24% p.a. |
| Rate type | Variable | Variable |
| Security | Unsecured (guarantee may apply) | Unsecured (guarantee may apply) |
| Repayments | No set repayment — deposits reduce the overdrawn balance | Weekly or monthly minimums on the drawn balance |
| Typical speed | 3–10 business days depending on security | 1–3 business days |
| Best for | Established businesses with regular deposits and short, recurring cash-flow gaps | Seasonal or project-based businesses managing cash-flow timing |
| Consider the other if | Funding an asset purchase or any expense you will repay over years | A single large purchase you will repay over years |
| Tax | Interest and line fees on business-purpose overdrafts are generally deductible. Confirm with your accountant. | Interest and line fees on business use are generally deductible. |
| Where the facility sits | On your trading account | Separate facility, drawn into your account |
| How you access funds | Automatically by transacting | By requesting a drawdown |
| How it is repaid | Automatically as deposits land | Scheduled minimum repayments on the drawn balance |
| Typical provider | Mostly banks | Banks, non-banks and fintechs |
| Speed to establish | 3–10 business days | 1–3 business days with fintech lenders |
Rates shown are indicative ranges observed across our lender panel for the period stated. They are not an offer or quote. Your rate depends on your business, the lender, the amount, the term and the security offered. The lender makes the final credit decision.
When to choose a business overdraft
A business overdraft is usually the better fit for established businesses with regular deposits and short, recurring cash-flow gaps. Its main advantages are interest only on the days you are overdrawn, no drawdown request — it works through your existing account, automatically repays as customers pay you. Consider the alternative if funding an asset purchase or any expense you will repay over years.
When to choose a business line of credit
A business line of credit is usually the better fit for seasonal or project-based businesses managing cash-flow timing. Its main advantages are pay interest only on what you draw, redraw without reapplying, buffer against slow-paying customers. Consider the alternative if a single large purchase you will repay over years.
Our verdict
Choose an overdraft when your need is short, frequent and self-correcting — a few days below zero each month that customer payments clear on their own. Choose a line of credit when you draw larger amounts for defined purposes over weeks, want a bigger limit than an unsecured overdraft allows, or need a non-bank lender because your bank has declined.
Both are revolving working-capital facilities with limits reviewed periodically, and both usually charge a line fee on the limit whether or not you use it. The practical difference is behavioural. An overdraft is invisible — you never decide to use it, you simply discover the account went negative on Thursday — which makes it excellent for absorbing small timing gaps and easy to lean on permanently without noticing.
A line of credit requires an act of drawing, which makes usage deliberate and visible. It also tends to be available from a wider range of lenders and faster to establish, which matters if your bank has already said no. Your broker looks at twelve months of statements to see whether your pattern is a handful of shallow dips or a few substantial drawdowns, and recommends accordingly.
Business overdraft
A business overdraft is an approved limit attached to your business transaction account that lets the balance go below zero up to that limit, with interest charged only on the negative balance. It is designed to absorb short timing gaps, not to fund long-term purchases.
Business line of credit
A business line of credit is an approved limit you can draw on, repay and redraw as needed, paying interest only on the amount used. It suits businesses whose funding needs rise and fall through the year.