Negotiate Supplier Terms with a Cash Forecast

Identify the specific mismatch

Start with the bill, due date, reason for the timing problem and expected receipts. Give the supplier the dates and amounts you're proposing, so they can assess the request. Include your payment history and anticipated order pattern where relevant, without promising purchases you can't support.

Separate a temporary split payment from a permanent move to longer terms. The first deals with one invoice; the second changes the ongoing commercial arrangement and may affect price, credit limits or supply.

Compare the original dates with the request

Assumptions: AUD total bank amounts. Opening cash $10,000; other net outflows $2,000 in each of weeks 1 and 2; a reliable $8,000 receipt and $2,000 other payments in week 3. Invoice is originally due in week 1. Proposed split: $3,000 in week 1 and $3,000 in week 3.

Week	Original invoice payment	Original closing cash	Proposed payment	Proposed closing cash
1	$6,000	$2,000	$3,000	$5,000
2	$0	$0	$0	$3,000
3	$0	$6,000	$3,000	$6,000

Original ASBG worked example. All businesses, amounts and scenarios are fictional. The table contains the same figures as the visual.

The split preserves $3,000 through week 2 but doesn't improve the final $6,000 balance. It changes timing, not the cost. If the supplier charges an agreed fee or removes a discount, add that cost before judging the proposal.

Run the delayed-receipt case too. If the week-3 customer money fails to arrive, the revised promise may still be unaffordable. Use the customer-delay test to check it.

Send a request the supplier can answer

Adapt this template with your actual facts. It is a commercial request, not a legal variation document.

Subject: Proposed payment arrangement for invoice [number]

Invoice [number] for [amount] is due on [date]. We are asking to pay [amount] on [date] and the remaining [amount] on [date] because [brief factual reason]. Our expected receipt on [date] supports the second payment. This request applies only to this invoice. Please confirm whether you accept it and whether any fees, price changes or supply conditions would apply. We understand the existing terms continue unless a change is agreed.

Offer documents that support the request without sending unnecessary customer or bank information. Keep a copy of what was agreed, who agreed it and when. If the supplier accepts only different dates, rerun the forecast before saying yes.

Review more than the number of days

Ask about changes to discounts, order minimums, deliveries, guarantees, interest, fees and credit limits. A longer payment period can cost more or affect access to stock. Get legal advice on unfamiliar contractual commitments rather than relying on the spreadsheet to assess them.

The business.gov.au supplier guide recommends recording agreed responsibilities and terms in a written contract. It does not give a business an automatic right to extend payment dates.

Follow the agreement through to the bank

Add the accepted instalments to the payment run, referencing the original invoice and arrangement. Confirm cleared payments and remaining balances. Remove the old full-payment row so the cash forecast doesn't include both versions.

Key takeaways

• Propose dates supported by receipts and the whole business forecast.
• Check fees, supply conditions and delayed-payment scenarios.
• Treat the change as proposed until accepted and documented.

Where to get help

A business adviser can help test the plan. If you can't meet debts when due, seek qualified assistance promptly rather than repeatedly moving dates. ASIC provides guidance for businesses in financial difficulty.