Two kinds of revolving credit

Business overdraft vs line of credit

Business overdraft vs line of credit: how a bank overdraft differs from a non-bank line of credit on security, assessment, cost and flexibility.

Updated 31 October 2026 · Capital At Call editorial team

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Quick answer

A business overdraft lets your transaction account go below zero up to a limit, and banks often want property security for it. A business line of credit is a separate revolving facility you draw into your account, and non-bank lines are often unsecured and assessed on bank statements. Both charge mainly on what you use; the differences are security, assessment and how they sit alongside your banking.

Key points

  • Overdraft: attached to your transaction account
  • Line of credit: a separate facility you draw from
  • Bank overdrafts often need property security
  • Non-bank lines are often unsecured and statement-based
Overdraft
Account goes below zero
Line of credit
Separate drawable limit
Security
Overdraft often property; line often none
Pay for
Mainly what you use, plus fees

Overdrafts and lines of credit solve the same problem: cash that dips and recovers. They are both revolving, and both are generally charged on what you actually use. Where they differ is in who offers them, what they need as security and how they plug into your everyday banking.

How a business overdraft works

An overdraft is attached to your business transaction account. When the balance falls below zero, the overdraft covers the shortfall up to an approved limit. Payments go out as normal, and deposits automatically reduce the overdrawn balance. It is seamless, which is the main appeal.

The catch is approval. Banks commonly want property security for business overdrafts, along with financial statements and a clean credit history. For many small businesses, especially newer ones or those without property, that is a high bar.

How a business line of credit works

A line of credit is a separate facility. You draw from it by transferring money into your transaction account and repay it when cash is available. Non-bank lenders often offer lines of credit that are unsecured, typically $5k to $500k, and assess them mainly on your business bank statements and turnover. Property-backed lines can go higher.

See what is on offer before you commit to anything. The enquiry is free, runs no credit check and does not lock you into a thing.

Side by side

Overdraft Line of credit
Where it lives Inside your transaction account Separate facility
How you draw Automatically, as payments exceed the balance By transfer when you choose
Typical provider Banks Banks and non-bank lenders
Security Often property Often none for non-bank lines
Assessment Financials, credit, security Mainly bank statements and turnover
Discipline Easy to drift into permanently A deliberate draw each time

Which suits your business?

If you already bank with a lender happy to provide an overdraft on good terms, it is convenient. If your bank has declined, wants security you do not want to offer, or is slow to decide, a non-bank line of credit is the usual alternative. Some owners also prefer the deliberate step of drawing on a line, because it is harder to slide into using it as permanent funding.

The Reserve Bank has reported that non-bank lenders have grown their share of small business lending, particularly for smaller loans, which reflects how many owners now look beyond their bank. Our comparison of bank vs non-bank lenders explains the differences in approach.

Keep an eye on the total cost

For either facility, ask what is charged on the limit itself, what is charged on the drawn balance and whether there are annual or review fees. Then estimate a year’s cost at your likely average balance.

The short version

  • Overdraft: attached to your transaction account
  • Line of credit: a separate facility you draw from
  • Bank overdrafts often need property security
  • Non-bank lines are often unsecured and statement-based

How we work through it with you

Everything starts with a short enquiry: how much, what for, how long you have traded, roughly what you turn over and whether there is property in the picture. A person, not a scoring engine, reads it and calls you. They ask for the evidence that actually decides the loan, explain the realistic options and give you the full cost in writing. Nothing goes ahead, and no credit check is run, until you say yes. On a complete file, approval within the hour is possible. Every step is explained as it happens, so you always know what is being checked and why.

Before you send the enquiry

A little preparation makes the first conversation far more useful, and it means the person who calls you can talk about options rather than chasing basic details:

  • Your ABN and the legal name of the business.
  • Online banking access, so recent statements can be shared through a secure read-only link.
  • A rough figure for monthly turnover and the amount you need.
  • A list of current loans and repayments, including any ATO payment plan.
  • If property is involved, the address and roughly what is owed on it.

A quick word on the enquiry form

Late surprises are what slow funding down. A second property owner nobody mentioned, turnover that is lower in the statements than on the form, an amount that doubles after the first call: each one sends the assessment back to the start. If you tell us the full story at the beginning, even the awkward parts, the file only has to be worked through once.

Check your eligibility

The next step is simple: send us the basics and a real person will call. There is no credit check when you submit it, and nothing goes to another lender without you knowing. Fill the form in accurately, especially the amount and your monthly revenue, because those two answers decide which option fits and how quickly it can move.

Frequently asked questions

Is an overdraft the same as a line of credit?

They work in a similar way, since both are revolving credit you pay for mainly when used. An overdraft is built into your transaction account, while a line of credit is usually a separate facility that you draw from.

Why won't my bank give me an overdraft?

Banks often want property security, several years of financial statements and a strong credit file for business overdrafts. A non-bank line of credit assessed on bank statements can be an alternative.

Which is cheaper?

It depends on the facility, the fees and how you use it. Compare the total annual cost, including any fee on the limit, for your expected average balance.

Can I have an overdraft and a line of credit?

Yes, though lenders will consider all your facilities together when assessing what the business can support.

Can a bank cancel an overdraft?

Overdrafts are usually reviewed periodically and their terms explain how and when they can be changed. Read the terms carefully if you rely on the facility.

Ask right here, it takes a minute

The same 60-second enquiry, on this page. No credit check to enquire, and the person who reads it is the person who calls you.

Put your business funding on call.

One 60-second enquiry. No credit check to enquire, no spraying your details around, and a real person who actually calls you back.

  • $5k to $500kunsecured and lines of credit
  • $20k to $5mproperty-secured, no valuation
  • 60 secto enquire, no credit check