Quick answer
Australian Government agencies are expected to pay correctly rendered invoices within 20 calendar days, or 5 days for eligible eInvoices, so the wait after invoicing is often shorter than with private customers. The cash gap for government suppliers usually comes earlier: delivering milestones, waiting for acceptance and fixing invoice errors. Invoice finance can fund that gap, and lenders generally view government debtors favourably, but they still need clean, accepted invoices.
Key points
- Commonwealth policy sets 20 calendar days for payment, or 5 days for eligible eInvoices.
- Interest may be payable to suppliers on late payments where accrued interest exceeds $100.
- The real gap is often before invoicing: mobilisation, milestones and acceptance.
- Incorrect invoices don't start the payment clock, so get the details right.
- Lenders like government debtors but still exclude uncertified or disputed claims.
If you supply Australian Government agencies, you may need invoice finance less than you think, and at different points than you’d expect. Commonwealth policy expects agencies to pay correctly rendered invoices within 20 calendar days, or 5 days for eligible eInvoices. The cash squeeze usually happens before that clock even starts: mobilising, hitting milestones, getting work accepted and fixing invoice errors.
So the right question isn’t “will the government pay?” It’s “how long am I funding the work before I can send an invoice the agency will accept?”
How quickly does the Australian Government pay its suppliers?
The Department of Finance’s Supplier Pay On-Time or Pay Interest Policy sets the timeframes for Australian Government organisations:
- 5 calendar days for eligible eInvoices, where both the agency and the supplier have Peppol eInvoicing capability and have agreed to use it
- 20 calendar days in all other cases, unless shorter payment terms have been agreed
The policy also says interest may be payable if an agency misses those terms and the accrued interest is more than $100, unless an exemption applies. Two important exceptions: interest isn’t payable if you didn’t submit a correctly rendered invoice, or if the agency hasn’t acknowledged satisfactory delivery. The policy also makes the point that your business size doesn’t affect your entitlement to be paid on time.
State, territory and local governments set their own policies, so check the terms in each contract.
If the government pays quickly, where does the cash gap come from?
From everything that happens before a payable invoice exists. A typical government contract looks something like this:
- Win the contract and sign it, sometimes weeks after the tender closes.
- Mobilise: hire or reassign staff, buy equipment, set up systems.
- Deliver to a milestone or the end of a billing period.
- Wait for acceptance, often a sign-off by the contract manager.
- Invoice, correctly, with every required detail.
- Get paid, within the policy timeframe.
Steps 2 to 4 can take weeks or months, and you’re paying wages and suppliers throughout. Then a single error at step 5, a missing purchase order number or the wrong cost centre, can send the invoice back and restart the wait.
| Stage | Who’s funding it? | Best tool |
|---|---|---|
| Mobilisation | You | Working capital loan or line of credit |
| Delivery to milestone | You | Line of credit, or progress invoicing if the contract allows |
| Waiting for acceptance | You | Line of credit |
| Accepted invoice awaiting payment | The invoice | Invoice finance |
| Invoice rejected for errors | You, again | Fix the invoice fast |
That table explains why invoice finance is only part of the answer for many government suppliers. It’s excellent once a correct invoice exists. For the earlier stages, a working capital loan or a line of credit usually does the job better.
How do you make sure your invoice starts the payment clock?
Because late-payment interest only applies to correctly rendered invoices, accuracy is worth real money. A few habits help:
- Match the contract and purchase order exactly, including reference numbers, descriptions and quantities.
- Get delivery accepted in writing before you invoice, or invoice in the way the contract specifies.
- Include the tax invoice basics. business.gov.au’s how to invoice guide lists them, including your ABN, the date, a description, the GST amount and, for sales over $1,000, the buyer’s identity or ABN.
- Send it to the right place. Agencies often have a single accounts payable address or portal.
- Switch to eInvoicing if you can, to move into the 5-day timeframe.
business.gov.au’s eInvoicing guide explains that many small business accounting packages already include eInvoicing, sometimes at no extra cost, and that the Peppol network is administered by the ATO.
How do lenders look at government invoices?
Generally, favourably. A lender’s main worry with invoice finance is whether the customer will pay, and Australian Government agencies are about as reliable as debtors get. That can mean higher limits against government invoices than against small private customers.
But lenders still check:
- Acceptance. Uncertified or unapproved work is usually excluded until it’s signed off.
- Disputes and variations. Anything under dispute or awaiting a variation is set aside.
- Assignment clauses. Some government contracts restrict assigning payments to a third party. A lender will want to see the contract before relying on it.
- Concentration. If one agency is most of your revenue, the lender may set a cap on that debtor.
- Your own position. Tax lodgements, super and any ATO debt still matter.
If you’re about to start a new government contract and need funding for the early months, tell us about the contract. A real person will look at where your cash gap actually sits.
An illustrative example
Illustrative only. A small IT consultancy wins a 12-month contract with a Commonwealth agency, billed monthly in arrears after the agency signs off a progress report. Its six contractors are paid fortnightly.
In the first month, the consultancy pays about $80k in contractor costs before it can invoice. Its first invoice is then sent back because the purchase order number is missing, adding another week. The owner arranges a line of credit to cover mobilisation and the first two billing cycles, then switches to eInvoicing through its accounting software. Payments start arriving within days of acceptance, and the line of credit is cleared within a few months. Invoice finance turns out to be unnecessary; the real need was funding the time before invoicing. Our IT business loans page covers similar situations.
What if an agency pays late anyway?
It happens, usually because something in the chain stalled: a contract manager on leave, an invoice sitting in the wrong inbox, or a dispute about whether a deliverable was finished. Start by checking the basics. Was the invoice correctly rendered? Has delivery been acknowledged in writing? If either answer is no, the policy timeframe may not have started.
If both answers are yes, contact the agency’s accounts payable team with the invoice number, the date it was received and the acceptance record. The Department of Finance offers an interest calculator, and the policy says interest may be payable once accrued interest passes $100. In practice, a polite reminder with the right paperwork usually gets the invoice moving.
Keep a simple log of when each invoice was sent, accepted and paid. Over a few months it shows exactly where delays come from, which is useful both for fixing your process and for showing a lender how reliably your government customers pay.
When is invoice finance still the right answer for a government supplier?
It earns its place when:
- you supply several agencies or a mix of government and private customers, some on longer terms
- you’re a subcontractor to a prime contractor, which may pay on its own commercial terms rather than government timeframes
- your volumes are growing fast and every month’s invoices are bigger than the last
- you invoice large amounts that are accepted, correct and simply waiting to be paid
Subcontracting is the big one. If you’re two steps removed from the agency, the prime contractor’s terms are what count, and they may be considerably longer than the Commonwealth’s.
Starting or growing a government contract?
Government work is steady and reliable, which is why it’s worth funding properly from the start. The gap is usually short, but it arrives at the worst moment: when you’ve just won the work and need to hire.
Starting the conversation takes about 60 seconds and there’s no credit check when you first enquire. Your details aren’t farmed out to a list of lenders, so you can focus on the contract instead of answering calls. A real person looks at your contract terms, billing cycle and team costs, then calls to talk through what fits. Please fill in the form accurately, including whether you contract directly or as a subcontractor, so we can suggest the right structure first time.
Frequently asked questions
How quickly do Australian Government agencies pay suppliers?
Under the Commonwealth's Supplier Pay On-Time or Pay Interest Policy, agencies should pay within 5 calendar days for eligible eInvoices and 20 calendar days in other cases, unless shorter terms have been agreed. State and local governments set their own policies.
Do I get interest if a government agency pays me late?
Under the Commonwealth policy, interest may be payable when payment misses the maximum terms and the accrued interest is more than $100, unless an exemption applies. Interest isn't payable if your invoice wasn't correctly rendered or delivery hadn't been accepted.
Can I get invoice finance on a government contract?
Generally yes. Many lenders are comfortable funding invoices owed by government agencies because the risk of non-payment is low. They'll still check that the work has been accepted and the invoice is correct, and some contracts have clauses about assigning payments that need checking.
What is eInvoicing and why does it matter?
eInvoicing is the digital exchange of invoices between accounting systems over the Peppol network. For Commonwealth agencies, eligible eInvoices fall under the 5-day payment timeframe, so switching can shorten the wait significantly.
What if my contract pays on milestones rather than monthly?
Then your gap is the time between starting work and reaching a milestone that can be invoiced. Invoice finance only helps once there's an accepted invoice. For the work before that, a line of credit or working capital loan is usually the better fit.