Overdraft vs Line of Credit: What Is the Practical Difference?

Both provide revolving working capital, but account operation, fees, security, review conditions and lender controls can differ. Compare the facility documents, not just the stated rate.

Quick answer: Both provide revolving working capital, but account operation, fees, security, review conditions and lender controls can differ. Compare the facility documents, not just the stated rate.

This guide answers one decision: Choose a revolving facility and understand pricing/review mechanics. The comparison should use the same amount, time horizon and purpose wherever possible. That prevents a lower repayment or headline rate from hiding a longer or less flexible structure.

Start with the decision, not the product

All are revolving-facility mechanics. The practical test is whether the structure improves total cost, liquidity, flexibility or future borrowing position enough to justify the trade-offs.

Decision framework

  1. Limit. Turn this into a number, document or contractual term before comparing the options. Avoid relying on a headline repayment alone.
  2. average utilisation. Use realistic average and peak drawings. A revolving limit that stays near fully drawn may be funding a permanent need.
  3. line fee. Include establishment, discharge, package, line and ongoing fees that differ between options.
  4. drawn rate. Compare the rate on the same balance and time horizon. A lower rate can still lose if the term or fees expand.
  5. review terms. Use the period you genuinely expect the debt to remain outstanding. Term is a major driver of total interest.
  6. security. Compare pricing with the asset or property you are putting at risk and the flexibility you give up.

Put the options on the same basis

Compare What to check
Amount Use the amount that will actually be financed or removed from cash/offset.
Time Compare over the period you genuinely expect the debt or facility to remain in place.
Cost Include interest plus fees and any final balance, balloon or residual.
Liquidity Show how much cash or working capital remains after the transaction.
Flexibility Check early repayment, redraw, reviews, employer dependence or other exit constraints relevant to the product.

Run the numbers: Term Loan vs Line of Credit Calculator uses a consistent set of assumptions so the result is not driven by mismatched terms.

Scenarios to test

$200k line at 30% average utilisation

Use $200k line at 30% average utilisation as a controlled comparison. Hold the transaction amount and time horizon constant, then compare cash retained, scheduled repayments, fees, total financing cost and any final balance. Change one assumption at a time so the real driver of the result is visible.

Questions borrowers are actually asking

Overdraft or LOC: practical difference?

Use revolving credit for variable short-term needs that draw and repay. Compare interest on drawings, any line fee, review conditions and whether the need is actually permanent enough for a term loan.

How do banks determine an overdraft limit?

Use revolving credit for variable short-term needs that draw and repay. Compare interest on drawings, any line fee, review conditions and whether the need is actually permanent enough for a term loan.

Do I pay interest on the whole line?

Both provide revolving working capital, but account operation, fees, security, review conditions and lender controls can differ. Compare the facility documents, not just the stated rate.

What is a line fee?

Both provide revolving working capital, but account operation, fees, security, review conditions and lender controls can differ. Compare the facility documents, not just the stated rate.

Can a bank reduce/cancel the limit?

Both provide revolving working capital, but account operation, fees, security, review conditions and lender controls can differ. Compare the facility documents, not just the stated rate.

What happens at annual review?

Both provide revolving working capital, but account operation, fees, security, review conditions and lender controls can differ. Compare the facility documents, not just the stated rate.

What to have ready before comparing

  • Peak and average funding need
  • Timing of supplier, payroll and customer cash flows
  • Existing limits and security
  • Expected utilisation and how drawings will be repaid

Compare overdraft and LOC options

If you want the structure reviewed against the actual transaction rather than a generic product comparison, Compare overdraft and LOC options. An initial enquiry is not a lender application and does not itself trigger a lender credit enquiry.

Sources and verification

These sources support the general mechanics and decision framework. Product availability, pricing, fees and lender policy can change. Tax-sensitive decisions should be checked against current ATO guidance and, where appropriate, a qualified tax adviser or accountant.

Related GPS Finance resources

About the author: KK Neelamraju is a finance and credit professional and founder of GPS Finance Group.

General information only. It is not personal financial, tax or legal advice. Finance approval, pricing, terms and structure are subject to lender assessment and the borrower’s circumstances.

Need help matching this to a business-finance option?

GPS Finance can review the funding purpose, conduct, documents and lender fit before you make a formal enquiry.

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