A business overdraft provides relief, helps cover unexpected expenses and can relieve cash-flow bottlenecks. Think of it like a safety net for when you don't have the cash in the bank to cover your expenses.

What is a business overdraft?

A business overdraft is a flexible financing facility often linked to certain types of business loans. It works similarly to a line of credit, allowing you to withdraw funds up to a pre-approved limit to manage short-term cash flow needs.

Some key features include:

  • Flexible access to funds: Withdraw money as needed, up to an agreed limit.

  • Interest on usage only: You're only charged interest on the amount you actually use, not the full limit.

  • Structured repayment terms: Repayments are made based on the conditions outlined in your loan or overdraft agreement.

The basics of a business overdraft

When you apply for a business overdraft, you'll likely need to demonstrate solid business turnover, provide property ownership or equity as collateral, and present a clear business need for the overdraft.

Secured vs unsecured business overdraft

Business overdrafts generally fall into two categories: secured and unsecured. The key difference lies in whether or not you’re required to offer collateral.

An unsecured business overdraft typically allows you to borrow up to $100,000 without needing to provide any assets as security. This option is often suitable for businesses with a solid financial track record and good credit history. However, because there's no collateral involved, lenders may charge higher interest rates and impose stricter eligibility criteria.

If you need access to more than $100,000, your lender will likely require a secured overdraft. This means you'll need to offer an asset, such as property or equipment, as collateral. In return, you may be eligible for a larger credit limit and potentially lower interest rates, depending on the value and type of asset you provide.

How interest works on business overdrafts

Interest rates on business overdraft facilities vary by lender and whether the facility is secured or unsecured. Generally:

  • Rates are slightly higher than those on traditional business loans.

  • Rates are usually variable, meaning they can fluctuate over time.

  • You only pay interest on the amount you use, not the full overdraft limit.

For example, if you're approved for a $200,000 overdraft but only use $100,000, you’ll only pay interest on the $100,000.

When to use a business overdraft

There are several scenarios where a business overdraft can prove especially useful for maintaining operations and managing cash flow effectively, including when:

You run a seasonal business: A business that makes the bulk of its income during a set period of the year but needs funds to pay expenses year-round could use an overdraft to cover costs before the next season begins. For example, a cafe in a holiday hotspot that does a booming trade during summer that cools off in the cooler months.

You work on long-term contracts: If you need to cover expenses throughout the project before you're paid on completion, an overdraft can help. For example, construction companies that are paid the bulk of their fees after a project is completed may use a business overdraft to pay for staff and materials during construction.

You're setting up a company: A business overdraft can help cover staffing and supplier costs during your launch phase - before you start earning income.

A client payment defaults: If one of your major clients defaults on a payment, the overdraft can cover your operating expenses until your cash flow recovers A business overdraft can be a valuable safety net to pay for your business expenses while your income is low or delayed. However, be aware that you'll likely pay higher interest rates than a regular business loan.

What do you need to get approved for a business overdraft?

To get approved for a business overdraft, banks or lenders typically look at several key factors to assess your business's financial health and ability to repay the borrowed amount. Here's what you’ll usually need:

  • A business bank account – Most banks only offer overdrafts to existing business account holders. You may need to open one before applying.

  • Trading history – Lenders typically want to see at least 6–12 months of business activity to confirm consistent income and cash flow.

  • Financial records – Expect to provide recent profit and loss statements, balance sheets, and cash flow reports to show your financial health.

  • Credit check – Your business credit, and sometimes, even your personal credit history, will be reviewed. A strong score improves your chances and terms.

  • Overdraft limit request – You’ll need to specify how much you're applying for and why, such as covering seasonal gaps or unexpected costs.

  • Ability to repay – Lenders want to see how you’ll repay the overdraft, usually through predictable income or upcoming receivables.

Comparing business overdrafts and loans

When it comes to financing your business, both overdrafts and loans can provide access to much-needed funds, but they work in different ways and serve different purposes.

Flexibility vs Structure

A business overdraft offers flexible access to funds. You can withdraw up to a set limit, repay as you go, and only pay interest on what you use. This makes it ideal for short-term cash flow gaps. A business loan, on the other hand, provides a fixed amount repaid in regular instalments over a set term, making it better for planned, long-term expenses.

Interest and Fees

Overdrafts usually have variable interest rates and may include extra fees, like annual facility charges. While interest is only charged on used funds, rates tend to be higher. Business loans often have lower fixed rates, but interest is calculated on the full amount from day one.

Repayment Terms

There is no fixed repayment schedule for overdrafts, offering flexibility but requiring discipline. In contrast, loans come with set repayment plans that can support better budgeting and financial planning.

Purpose and Use

The flexible short-term borrowing offered by an overdraft makes it suitable for managing unexpected expenses or cash flow gaps, while a loan’s structured and fixed repayment terms make it better for planned, long-term financial needs.

Business overdraft vs credit card

While both short-term financing tools, a business overdraft and a business credit card function quite differently and are suited to different needs. Here are some key differences between the two:

Access to Funds

Overdrafts kick in automatically when your account goes below zero, making them ideal for managing cash flow dips. Meanwhile, credit cards must be actively used for transactions, and while they allow cash advances, those typically come with higher fees and interest.

Interest & Fees

Business overdrafts charge interest only on the amount used, usually at a variable rate. Banks may also add setup or renewal fees. Credit cards often have higher interest rates but offer interest-free periods on purchases if paid in full.

Credit Limit

Overdraft limits are based on your financials and can be flexible with bank approval. Credit card limits are based on creditworthiness and may increase over time with good repayment history.

Repayment Terms

Overdrafts are repaid automatically when funds hit your account, no fixed schedule. Credit cards require at least a monthly minimum payment, with interest applied if the full balance isn’t cleared.

Best Use Cases

It’s best to use an overdraft for short-term gaps like delayed invoices or unexpected expenses. A credit card is usually suited for routine purchases, travel, subscriptions, or when you want to earn rewards like cashback or points.

Pros and cons of using a business overdraft

Here’s a clear overview of the main advantages and disadvantages of a business overdraft to help you determine if it’s the right financing option for your business.

Pros

Cons

Flexible access to funds

Higher interest rates

Pay interest only on the amount used

Facility can be withdrawn at any time

Useful for short-term cash flow gaps

May include setup, renewal, or annual fees

No fixed repayment schedule which means flexibility

Easier to overuse, leading to poor cash flow habits

Quick approval in some cases, especially if you already bank with the lender

Credit checks may affect approval