How to Fund a Major Contract Win Without Stretching Cash Flow
Julian Marks
CEO · Jun 30, 2026 · 7 min read
Winning a significant new contract should be among the best moments in a UK business's history. But the gap between starting work and receiving payment can create a cash flow crisis that threatens the very business that won the contract. This is especially acute in construction, professional services, manufacturing, and staffing - sectors where lead times are long and payment terms extend to 60, 90, or even 120 days. Understanding your options before the contract is signed gives you far more flexibility than scrambling for finance after the work has started.
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The cash flow gap in major contracts
For a manufacturing business winning a £500,000 contract, the cost profile typically looks like this: raw materials at £150,000 upfront, labour costs of £50,000 per month for three months, overheads allocated at £20,000 per month, and payment received 60 days after delivery. The total cash outflow before receipt is roughly £360,000. The profit margin only materialises after the gap is bridged.
Contract size alone does not determine how difficult the financing challenge is. Payment terms, upfront costs as a proportion of contract value, whether materials can be purchased on supplier credit, and whether the counterparty is creditworthy enough to support invoice finance all shape the actual working capital requirement.
Finance solutions for contract funding
Invoice finance is often the most efficient tool where invoices can be raised on the back of contract milestones or deliverables. Raising an interim invoice upon delivery of the first phase and immediately unlocking 85-90% of its value through discounting can substantially reduce the cash gap. For contracts with creditworthy corporate or public sector counterparties, this approach is fast and relatively cheap.
Where invoices cannot be raised until delivery, purchase order finance or contract finance (where the lender advances against the confirmed order rather than an issued invoice) becomes relevant. These products are more niche and more expensive than invoice finance but solve a different problem. They are particularly relevant for manufacturers, importers, and government contractors.
"The businesses that build finance planning into contract bids grow faster and win more business than those that scramble for cash after the contract is signed."
- Julian Marks, CEO
Planning contract finance into your bid
The most sophisticated UK businesses factor finance costs into their contract pricing before they submit bids. If a large contract will require bridging finance, that finance cost is part of the cost of winning and delivering the contract. Building it into the margin assumption rather than discovering it afterwards is both more professional and more financially disciplined.
It also means you can negotiate payment terms more confidently. A business that knows it has an invoice finance line available can offer 60-day payment terms to a large buyer without concern, whereas a business without that line might feel forced to insist on shorter terms that disadvantage the bid.
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Frequently Asked Questions
What is contract finance and how is it different from invoice finance?
Invoice finance advances against issued invoices. Contract finance (or purchase order finance) advances against confirmed orders before invoices are raised, solving an earlier stage of the cash gap.
Can I get finance on a public sector contract?
Yes. Public sector debtors are among the most accepted by invoice finance lenders due to payment certainty. Government contract income is often the basis for very efficient invoice discounting facilities.
Should I negotiate payment terms before or after signing a major contract?
Ideally before. Payment terms and milestone structures determine your working capital requirement. Having a finance solution in place before signing gives you far more negotiating freedom on payment terms.
The bottom line
Major contract wins are among the highest-value events in a UK business's growth trajectory. Funding them properly is not optional - it is what separates businesses that fulfil their contracts comfortably from those that become financially distressed while trying to deliver. Spark Finance has experience helping UK businesses across all sectors structure contract finance before and during delivery of major contracts.
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