Business Overdraft

A business overdraft gives your business a flexible line of credit you can draw on whenever cash flow gets tight and repay as revenue comes in.

At Sierra Finance, we compare business overdraft facilities across 50+ lenders to find the right structure, limit, and rate for your situation.

Whether you need an unsecured facility to bridge gaps between invoicing and payment or a larger secured arrangement for ongoing working capital, we handle the comparison and application so you can focus on running your business.

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How a Business Overdraft Works

A business overdraft is a revolving line of credit attached to your business. Unlike a term loan where you receive a lump sum and make fixed repayments, an overdraft lets you draw funds up to an approved limit, repay when cash comes in, and draw again without reapplying. Interest is calculated daily on the amount you have actually drawn, not the full approved limit. When the facility is sitting unused, the only ongoing cost is a small annual line fee.

Most business overdrafts in Australia fall into two categories. An unsecured overdraft does not require property or other assets as collateral, making it faster to arrange and accessible to businesses that do not own real estate. A secured overdraft uses property as security, which typically unlocks a higher limit and a lower interest rate but adds complexity and risk to the arrangement.

Facility terms are generally reviewed annually. As long as your business continues to meet the lender's requirements, the facility rolls over and remains available. This makes an overdraft fundamentally different from a fixed term loan, which has a defined end date and a set repayment schedule.

What a Business Overdraft Can Be Used For

A business overdraft is designed for working capital needs rather than purchasing specific assets. The most common use is covering the gap between completing work and receiving payment, particularly for trades and professional services where invoice terms run 14 to 60 days. Wages, rent, materials, and supplier payments still need to be met during that window.

Seasonal businesses use overdrafts to maintain operations during quieter periods. Hospitality operators in winter, construction businesses during wet weather, and retail outside peak trading all face revenue dips while fixed costs stay the same. An overdraft absorbs those gaps without requiring a new application each time.

ATO and superannuation obligations are another common trigger. BAS payments, PAYG withholding, and super contributions fall due regardless of when your clients pay. From July 2026, super must be paid every pay cycle rather than quarterly, which has increased the working capital pressure on businesses with larger payrolls.

If you need funds to purchase a specific asset like a vehicle, truck, or piece of equipment, that is a different conversation. Asset finance or a business loan will almost always be better structured and more cost effective for a defined purchase. An overdraft is the right tool when you need flexible, ongoing access to working capital rather than a single lump sum.

Who a Business Overdraft Is For

Business overdrafts suit any Australian business with an active ABN and consistent revenue that experiences cash flow timing gaps. The product is particularly common among trades and construction, professional services, transport and logistics, hospitality, retail, and healthcare providers.

Most lenders require a minimum of 6 to 12 months trading history and monthly revenue of at least $6,000 to $10,000. For unsecured facilities, credit score thresholds vary by lender, but most assess from an Equifax score of 550 and above. Businesses with managed ATO payment plans can still qualify with the right lender, though unresolved tax debt or recent defaults make approval significantly harder.

Sole traders, partnerships, companies, and trusts are all eligible. Directors or owners typically provide a personal guarantee on the facility.

If your business is brand new with less than six months of trading, overdraft options are limited. A small business loan or working capital advance may be a better starting point until you have enough trading history to support a revolving facility.

Why Use a Broker for a Business Overdraft

The business overdraft market in Australia is split between major banks on one side and specialist alternative lenders on the other. Each has different eligibility criteria, rate structures, documentation requirements, and approval timelines. Comparing them yourself means applying to multiple lenders, and each application generates a separate credit enquiry on your file. Multiple enquiries in a short period can damage your credit score and signal financial stress to the next lender in line.

A broker submits one application to the lender most likely to approve your facility at the best available terms. That protects your credit file and avoids weeks of back and forth with individual lenders.

At Sierra Finance, we also bring a perspective that a single lender cannot. Because we work across the full range of business finance products, we can tell you when an overdraft is the right solution and when something else would serve you better. If your cash flow gap is caused by slow paying debtors, invoice finance might solve the problem at the source. If you need a defined amount for a specific purchase, a business loan or asset finance is likely cheaper and better structured. Our job is to match you with the right product, not just the product you asked about.

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We compare business overdraft facilities across 50+ lenders to find the right fit for your business. No obligation and no cost to you.

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Getting a Low Doc Business Loan

Step 1: Initial Conversation

You tell us what your business needs. We ask about your revenue, trading history, how you plan to use the facility, and whether you have any existing lending or ATO obligations. This takes around 10 to 15 minutes and helps us identify which lenders are the best fit for your situation.

Step 2: Application and Lender Matching

We prepare your application and submit it to the lender offering the best terms for your profile. For most unsecured overdrafts, the documentation is straightforward: six months of business bank statements, your ABN, and identification. No tax returns or financial statements are typically required for smaller facilities.

Step 3: Approval and Access

Approvals on unsecured facilities can come back within hours. Once approved, the facility is set up and you can draw on it as needed. For secured facilities involving property, the process takes longer due to valuation and legal requirements, but we manage the process from start to finish.

Business Overdraft FAQs

What is a business overdraft?

A business overdraft is a revolving line of credit that gives your business access to funds up to an approved limit. You draw what you need, when you need it, and repay as cash flows into your business. Interest is only charged on the amount you have drawn, not the full facility limit. Unlike a term loan, there are no fixed repayments or a set end date. The facility rolls over as long as your business continues to meet the lender's review criteria, which is typically assessed annually.

How does a business overdraft work?

Once approved, your overdraft facility sits in the background. When your business needs funds, you draw on the facility up to your approved limit. As revenue comes in, you repay what you have drawn. The repaid amount is immediately available to draw again. Interest is calculated daily on the outstanding drawn balance and charged monthly. When the facility is unused, the only cost is a small annual line fee on the approved limit.

What is the difference between a business overdraft and a business loan?

A business overdraft is revolving, meaning you draw, repay, and draw again with no fixed repayment schedule. A business loan provides a lump sum with set repayments over a defined term. Overdrafts suit ongoing cash flow management where the amount you need fluctuates. Business loans suit specific purchases or projects where you know exactly how much you need upfront. In most cases, a business loan is cheaper for a defined purpose because the rate is lower and the structure is more predictable.

What is an unsecured business overdraft?

An unsecured business overdraft is a facility that does not require property or other assets as collateral. Lenders assess your application based on your business revenue, trading history, and credit profile rather than the value of a specific security. Unsecured facilities are faster to set up and accessible to businesses that do not own real estate. The trade off is that unsecured rates are generally higher and facility limits are typically capped at lower thresholds than secured arrangements.

How much can I borrow with a business overdraft?

Facility limits depend on your monthly revenue, trading history, credit profile, and whether the facility is secured or unsecured. Most unsecured business overdrafts range from $10,000 to $150,000. Secured facilities backed by property can extend higher. As a general guide, most lenders will consider a facility of one to one and a half times your average monthly revenue based on your recent bank statements.

What are the eligibility requirements for a business overdraft?

Requirements vary by lender, but the common criteria for an unsecured business overdraft include a minimum of 6 to 12 months trading history, monthly revenue of at least $6,000, an active ABN, and an Equifax credit score of 550 or above. Secured facilities may require additional documentation including financial statements and a property valuation. Having a managed ATO payment plan does not automatically disqualify you, though unresolved tax debt or recent defaults will limit your options.

What documents do I need to apply for a business overdraft?

For most unsecured business overdrafts, you need six months of business bank statements downloaded from your internet banking, your ABN, and a copy of your driver's licence. No tax returns, BAS statements, or accountant prepared financial statements are typically required for smaller facilities. For larger or secured facilities, lenders may request 12 months of statements, financial statements, and a property valuation.

How long does it take to get a business overdraft approved?

Unsecured business overdrafts through alternative lenders can be approved within hours of submitting a complete application. Same day funding is possible for applications submitted early in the business day. Secured facilities involving property take longer due to valuation and legal requirements, typically two to four weeks depending on the lender and the complexity of the security arrangement.

Can I get a business overdraft with bad credit?

It depends on the nature of the credit issues. Many alternative lenders will consider applications with Equifax scores from 550 and above. Paid defaults, managed ATO payment plans, and minor credit blemishes do not automatically disqualify you. Current unpaid defaults, judgments, or very low credit scores will significantly narrow your options. A broker can identify which lenders are most likely to consider your profile without generating multiple credit enquiries on your file.

Can I get a business overdraft with ATO debt?

If your ATO debt is on a formal payment plan and you are meeting the scheduled payments, several lenders will still consider your application. The key factors are whether the plan is current, how much is outstanding relative to your revenue, and whether you have other credit issues alongside the tax debt. If the ATO debt is unresolved or subject to enforcement action, approval becomes very difficult regardless of the lender.

Is a business overdraft the same as a line of credit?

In practice, yes. Both provide revolving access to funds up to an approved limit, with interest charged only on the drawn amount. The terms are used interchangeably in Australia. Banks tend to call the product an overdraft, while alternative lenders often use "line of credit" or "revolving facility." The structure and mechanics are the same regardless of what the lender calls it.

Do I need property as security for a business overdraft?

Not for most facilities under $150,000. Unsecured business overdrafts are assessed on your business revenue, trading history, and credit profile without requiring property or other assets as collateral. For larger facilities, most lenders will require some form of security, typically residential or commercial property. Whether a secured facility makes sense depends on the amount you need and your comfort level with putting property on the line for a working capital facility.

What can a business overdraft be used for?

A business overdraft can be used for any legitimate business purpose. The most common uses are covering cash flow gaps between completing work and receiving payment, meeting payroll and supplier obligations, handling seasonal revenue dips, paying ATO and superannuation obligations, and funding materials or stock purchases ahead of revenue. Overdrafts are not designed for purchasing specific assets. If you need to buy equipment, a vehicle, or machinery, asset finance or a business loan is typically a better fit.

Why should I use a broker for a business overdraft?

A broker compares overdraft facilities across multiple lenders and submits your application to the one offering the best terms for your profile. This means only one credit enquiry on your file rather than multiple enquiries from applying to several lenders directly. A good broker also knows when an overdraft is the right product and when another option would serve you better. At Sierra Finance, we work across the full range of business and asset finance, so we can provide an honest recommendation based on what your business actually needs.

Can I get a business overdraft as a sole trader?

Yes. Sole traders are eligible for business overdrafts provided they meet the standard criteria including minimum trading history, revenue thresholds, and credit score requirements. The main difference is that your personal credit file is assessed directly rather than a company credit file. Most lenders treat sole trader applications the same as company applications in terms of documentation and facility structure.

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Call us on 0416 960 969 or fill in the form below for a same business day response. We will compare your options across 50+ lenders and find the right fit for your business.