Cash can be tied up in completed construction work long before a client pays. For a UK construction company asking what funding it can use while waiting for invoices and retentions, options include invoice finance, working capital finance and revolving credit facilities. Invoice finance may release 75% to 90% of an invoice’s value within days; some specialist facilities can also consider retention balances.
That gap can put pressure on payroll, materials and subcontractor payments, even when work is progressing as planned. Match funding to the cash-flow gap and check which invoices, applications or retentions may qualify.
This article explains how construction invoice finance works, what affects the amount and timing of funding, and how factoring differs from invoice discounting. It also covers alternative funding routes, the documents and contract details providers assess, and the costs, security and risks to weigh before deciding what may suit your business.
Key Takeaways
- Compare factoring and discounting by who manages customer payments and whether the facility needs to remain confidential.
- Check whether payment applications are approved, since uncertified work and disputed amounts may be harder to fund.
- Track retentions separately and review contract terms, payment records and customer concentration when assessing eligible debts.
- Choose funding that matches the cash-flow gap: invoice finance for eligible completed work, asset finance for equipment, or another facility for a different need.
- Before proceeding, understand the fees, repayment terms, security and any personal guarantee requirement.
What Is Construction Invoice Finance?
Construction invoice finance can turn eligible completed work into working capital before the customer pays. The facility advances funds against an unpaid invoice or approved contractual debt, then accounts for the balance when payment arrives.
Factoring and Discounting Options
Factoring may involve the funder handling credit control and following up on customer payments. Invoice discounting lets the business manage its own sales ledger and can keep the arrangement confidential from clients. General invoice finance facilities typically advance 80-90% of an invoice or application value. Compare who handles collections, how confidentiality works and how the facility treats customer payments.
Payment Applications and Retentions
Some specialist providers consider applications for payment before a formal invoice or payment notice is issued. But an application is not automatically an approved invoice or eligible debt. Providers may assess the contract, valuation, certification, completed work and any dispute. Some also consider advances against retention balances before release, although retentions may be reviewed separately or excluded.
Advance levels depend on the type of debt and facility. Construction-specialist facilities may advance up to 100% of an invoice or application value, while general facilities typically advance 80-90%. UK construction invoice finance providers typically advance 75% to 90% of an invoice’s value within days. These are different facility descriptions, not a guaranteed amount for every business. The available limit depends on eligible invoices, customer quality, payment terms and existing funding.
Providers may review the contract and payment mechanism, applications, valuations, certificates, notices, retentions, CIS status, set-offs and debtor quality. They may also consider existing funding arrangements. A disputed valuation, pay-less notice or unapproved application can restrict eligibility. Where CIS deductions apply, calculations may be based on the amount expected after those deductions. Clear records help show which completed work supports each debt.
Invoice finance is not the only route. Contract finance may suit costs tied to a particular contract, while trade finance can help meet eligible supply costs. Asset finance is designed for equipment, vehicles or plant, rather than unpaid invoices. Match the facility to the purpose: use invoice finance for eligible debts, and consider asset finance when equipment is the main requirement.
Embedded invoice financing describes finance presented within a contractor’s or platform’s payment workflow. The business can review a funding option alongside payment information, rather than treating it as a separate process. The underlying assessment still concerns eligible debts, customer payment, contract terms and supporting records. For any facility, map each application to completed work, confirm its approval status and track expected payments and retentions separately.
Factoring unpaid construction invoices and approved applications for payment
Factoring can release working capital against an unpaid invoice or approved application for payment. The funder advances an agreed proportion, then receives payment from the debtor. This can help construction businesses meet payroll or supplier commitments while waiting for a main contractor to pay. The amount available depends on whether the debt is approved, supported by records and payable by an acceptable customer.
Payment terms set the expected gap between applying for payment and receiving cash. Under the Construction Act, payment is due within the period agreed from the application date. A payment notice records the amount treated as due, while a pay-less notice can affect the amount expected. For funding, notices, approval status and any dispute can affect whether a debt qualifies.
Funding certified applications
Certified applications provide evidence that assessed work has reached a payment stage. UK construction factoring lenders typically advance 50% to 65% against certified applications for payment. A lender assesses the application alongside its valuation, certificate, contract and debtor. Keep each record together, with the relevant project reference and amount, so the funder can match the claimed sum to completed work.
After assessment, funds are released against the eligible amount, not automatically against every figure submitted. A retention, set-off or adjustment can reduce the amount available. The remaining balance is accounted for when the debtor pays, after applicable fees, reserves and adjustments. Reconcile the payment against the original application to keep project cash-flow records accurate.
Uncertified applications and materials
Uncertified applications face greater funding restrictions because the customer has not formally approved the amount. Specialist funders that accept them typically advance 40% to 55% of their value. They may examine the contract, valuation evidence, completed work and payment process before deciding eligibility. An unapproved variation or disputed valuation can make release difficult, so separate these items from approved work in project records.
Construction materials create a timing gap before installation and approval. Invoice factoring supports eligible debts after work or contractual payment stages, but may not fund materials before the related work is completed. Trade finance can be considered for supply costs, while asset finance fits equipment purchases. Match each facility to its purpose rather than relying on invoice finance for every project expense.
Before submitting a funding request, assemble the contract, application, valuation, certificate, notices and debtor payment history. Note any pay-less notice, dispute, retention or set-off against the relevant debt. A clear schedule helps show which sums are approved and which remain uncertain. Businesses preparing a funding request can organise their details through a business finance application.
Invoice factoring and invoice discounting
Both options can turn eligible construction debts into working capital before the debtor pays. The key difference is who manages customer credit control.
Choosing Between Factoring and Discounting
With factoring, the funder can take over credit control, chase late payments and manage the sales ledger. Some facilities also offer optional bad-debt protection. This can reduce administration for contractors, but customers deal directly with the factor.
Invoice discounting lets the business manage its own ledger and may keep the finance confidential from customers. Compare the effect on your team, customer relationships and existing payment processes. Confidential arrangements may help where a contract restricts assignment, but a main contractor could still query or delay payment to a factor.
Factoring for Construction Companies
Construction factoring is assessed against the underlying contract and debtor, not just the invoice total. Providers may review completed work, certification, payment terms, set-offs, retentions, disputes and contract assignment provisions. They may also consider whether one main contractor accounts for most revenue, since debtor concentration can limit the facility available.
Prepare a schedule linking each unpaid invoice to its contract, application and supporting records. Identify disputed amounts and retentions separately. Construction payment terms from main contractors regularly run to 60-90 days, so compare facility terms with the expected payment cycle and the time suppliers need to be paid.
Review the full cost structure before agreeing a facility. Compare minimum fees, notice periods, how the funder handles ledger administration, and what happens when customers pay late. Ask how reserves and adjustments affect the balance released after payment. Invoice discounting is typically available to larger construction businesses with turnover over £500,000, while factoring may suit firms that want outsourced credit control.
Personal guarantees may form part of a lender’s terms. Directors of smaller limited companies may be asked to provide one, putting personal assets at risk if the business cannot meet its obligations. Check the guarantee’s scope and seek professional advice before signing. If repayments are secured against an asset, that asset could also be at risk if repayments aren’t maintained.
Factoring may be unsuitable where debts are disputed, work remains uncertified or customers won’t pay a factor directly. A revolving credit facility for recurring cash-flow gaps may better match recurring cash-flow gaps, while a business loan may suit a separate, defined funding need. Compare the purpose, repayment source, contract restrictions and effect on suppliers before committing.
Funding eligible construction invoices and approved contractual debts: what funding can UK construction companies use while waiting for invoices and retentions?
Funding depends on the debt’s status, contract terms and payment evidence. Main contractors, subcontractors and specialist trades should match a facility to completed work and the cash-flow need it must cover.
Under the Construction Act, payment is due within the period agreed from the application date. Retention amounts and release milestones are set out in the relevant contract, so review those terms alongside payment notices and valuations.
Main Contractor and Subcontractor Funding
Main contractors and subcontractors can both seek funding against eligible business-to-business debts. A lender may assess the debtor, contract, payment process, completed work and existing finance. Specialist trades should organise applications, certificates and invoices by project. This makes it easier to distinguish an approved contractual debt from an unapproved variation or disputed valuation.
New contracts can create working-capital needs before the first payment arrives. Invoice finance generally relates to eligible debts for completed work, so it may not cover early mobilisation or costs incurred before a billable stage. A working-capital facility or business loan may better match those costs, depending on affordability and lender criteria.
Retentions and JCT Contracts
Construction retentions are typically 3-5% of each payment and may be held for 12 months or more. This can leave capital tied up across projects after the main work is complete. A retention bond may offer an alternative to cash retention when the customer accepts the bond and the provider approves it.
JCT contracts provide standard working practices for construction projects. Review each contract’s retention terms, including release events and outstanding conditions. Record each retention against its project, amount and expected release milestone. This gives the business a clearer view of cash not yet available for wages, materials or suppliers.
Eligible Invoices and Contractual Debts
Providers focus on debts linked to delivered work and an agreed payment stage. They may review the contract, applications, valuations, certificates, notices, debtor quality, CIS status, set-offs and existing funding. An unapproved variation can be difficult to fund until formally instructed and accepted. Keep these amounts separate from approved invoices in forecasts and supporting records.
Government grants generally have limited scope for working capital. CITB training grants are available to levy-registered employers, but support training rather than routine project cash flow. For operational funding, construction businesses can consider invoice finance, business loans or revolving credit facilities. The structure depends on whether the need relates to approved debts, early contract costs or a recurring timing gap.
Advance rates and funding speed
An advance rate is the share of an eligible debt released before the customer pays. It is not necessarily calculated against the full invoice total. A lender may first exclude retention, disputed sums, set-offs or other ineligible amounts. So a stated percentage applied to an eligible balance can produce less cash than the same percentage applied to the gross invoice.
Construction invoice factoring providers typically advance 75% to 90% of an invoice’s value within days. Some specialist facilities can advance up to 100% of an invoice or application value, while general invoice finance facilities typically advance 80-90%. These ranges describe different facility structures. The contract, debtor, approval status and quality of supporting evidence all affect the amount available.
Funding speed has several stages. First, the business submits its contract, invoice or payment application, valuation and supporting records. The lender assesses the debt and debtor, then confirms the facility terms and eligible amount. After approval, funds can be released against the accepted debt. Construction businesses can get working capital in 24 to 48 hours, and an average payout time is 48 hours. These timings do not mean every application follows the same process.
To make a cash-flow forecast useful, record the expected advance separately from the later balance. For each unpaid invoice, note the gross amount, eligible amount, expected payment date and any deductions. Then forecast when the customer is due to pay and when the remaining balance may be released after fees, reserves and adjustments. This helps compare funding with payroll, materials and supplier payment dates.
A faster advance does not automatically solve a funding gap. If a supplier needs payment before a payment application is approved, invoice factoring may not cover that cost. If the business needs ongoing access to funds, compare the facility’s terms with its cash-flow pattern. Review fees, minimum charges, notice periods and repayment arrangements alongside the advance rate. Compare the usable amount and timing, not just the headline percentage.
Prepare accurate records before applying. Reconcile the sales ledger, flag overdue debts, separate retentions and disputed sums, and make sure forecasts reflect actual customer payment patterns. Lenders may also assess business performance, credit profile, affordability, security and their own criteria. If a facility is secured against an asset, that asset could be at risk if repayments aren’t maintained.
TMS Finance: Business Loans
TMS Finance is a commercial finance broker, not a lender. It helps construction businesses consider Business Loans, Invoice Finance and Asset Finance for different funding needs, such as eligible unpaid invoices, wider working capital or equipment purchases.
Invoice Finance may suit a cash-flow gap linked to eligible debts. A Business Loan may fit a defined funding need that isn’t tied to those invoices. Lenders assess applications against their criteria, including the applicant’s circumstances, business performance, affordability and any security. Prepare contracts, payment records and cash-flow forecasts to support a discussion of the options. Compare repayment terms, fees, security and any personal guarantee, and seek professional advice where appropriate.
TMS Finance is a commercial finance broker, not a lender. Finance is subject to status, lender criteria and satisfactory checks. Terms, fees, security and personal guarantees may apply. Contact TMS Finance to discuss your circumstances and the funding options that may be available.
Set a clear funding plan for your next project
Choosing the funding UK construction companies can use while waiting for invoices and retentions starts with a clear cash-flow forecast. Map expected customer payments against payroll, materials, supplier commitments and project milestones. Then identify whether the gap comes from completed work awaiting payment, equipment costs or broader working-capital needs.
Use that forecast to compare the funding purpose, repayment source, fees, security and any personal guarantee. A facility linked to unpaid invoices may not fit costs arising before work reaches an eligible payment stage. If the gap relates to a different business need, consider suitable alternatives and seek professional advice before committing.
Prepare your project records and funding requirements before discussing the options. A clear view of the amounts, timing and repayment plan can support a focused conversation with TMS Finance.
A measured funding decision can help you plan upcoming commitments with greater clarity.
TMS Finance is a commercial finance broker, not a lender. Finance is subject to status, lender criteria and satisfactory checks. Terms, fees, security and personal guarantees may apply. Contact TMS Finance to discuss your circumstances and the funding options that may be available.
Frequently Asked Questions
What are the benefits of construction factoring, and how can a business qualify?
Construction factoring can release working capital against eligible debts and may include credit-control support. To assess an application, providers may review the business’s accounts, cash-flow forecast, debtor ledger, contracts and payment records. They also assess the customer, completed work, disputes and existing borrowing. For a contractor considering what funding UK construction companies can use while waiting for invoices and retentions, eligibility depends on the debts and the provider’s criteria.
Can retentions or uncertified applications for payment be funded?
Some specialist providers consider retention balances or uncertified applications, but neither is automatically eligible. Providers may examine the contract, release conditions, valuation evidence, completed work and customer payment process. CIS deductions can affect the eligible amount, so keep the gross application and expected deductions clearly recorded. Separate approved sums, retentions and disputed amounts in project records to show how each balance has been calculated.
Does factoring affect relationships with main contractors?
Factoring can change payment communications because a factor may contact the main contractor to collect debts. Some contractors may query or delay payment to a factor. Review contract terms and payment instructions before choosing factoring. If maintaining direct customer contact matters, invoice discounting may be worth comparing because the business manages its own sales ledger. Confidentiality and assignment terms depend on the facility and contract.
What invoice finance and contract funding options can construction companies consider?
Factoring, invoice discounting and selective invoice finance can support eligible debts in different ways. Contract finance may be considered for costs linked to a specific project, while trade finance can address eligible material purchases. A contractor asking what funding UK construction companies can use while waiting for invoices and retentions should match the option to the timing and purpose of the cash requirement.
How should a business decide whether a facility is suitable?
Compare the funding purpose, expected repayment source, fees, notice periods, security and any personal guarantee. Factoring may be unsuitable if debts are disputed, customers will not pay a factor, or costs arise before work reaches an eligible stage. Consider alternatives such as a business loan, revolving credit facility or asset finance where they better match the need. Seek professional advice before committing.
TMS Finance is a commercial finance broker, not a lender. Contact TMS Finance to discuss your circumstances and the funding options that may be available.
What government-backed finance, grants, or support schemes can UK construction businesses use for working capital?
Construction grants are often limited in scope. CITB training grants are available to levy-registered employers, but support training rather than working capital for day-to-day project costs.