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Invoice finance

Construction invoice finance: funding applications for payment

How construction invoice finance funds applications for payment, why retentions, set-off and CIS affect advances, and which contractors lenders tend to support.

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In short

Construction invoice finance lets contractors borrow against applications for payment and invoices on construction work before main contractors pay. Specialist funders advance part of the amount they judge collectable, then release the balance when payment arrives. Retentions, contra-charges, pay less notices and CIS deductions all affect how much can be funded, and only some lenders accept construction debt.

This page is for subcontractors and specialist contractors who wait too long to be paid on construction work and want to borrow against what they are owed. Construction invoice finance funds applications for payment, certified valuations and invoices raised under construction contracts, so cash comes in while main contractors work through their payment cycles. Smart Funding Solutions is a broker, not a lender. We approach lenders on our panel of 300+ that have appetite for construction debt, arranging facilities from around £10,000 to £500,000+, with larger facilities available in suitable cases. For other ways to fund receivables, see our invoice finance hub, and for the wider sector, our construction finance page.

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What construction invoice finance is and how it works

Construction invoice finance is a form of invoice finance adapted to the way construction contracts bill and pay. Instead of simple invoices for goods delivered, a contractor usually submits applications for payment for work done to date, the paying party values them, and the amount actually paid can differ from the amount applied for.

A specialist funder advances a proportion of the amount it judges to be genuinely collectable, then releases the balance, less charges, when the main contractor or client pays. Because the value of a construction debt is less certain than an ordinary invoice, funders look closely at each contract, the paying party and your record of getting applications agreed in full. Advances are typically more conservative than on a standard whole-turnover facility, and some funders lend only against certified or agreed amounts rather than the gross application.

This product is different from JCT contract funding, which provides money to start and carry out a specific contract before you have billed. Construction invoice finance funds work you have already done and applied for.

Payment notices and pay less notices

The Housing Grants, Construction and Regeneration Act 1996, as amended by later legislation, gives parties to most construction contracts in England, Wales and Scotland statutory rights around payment. Contracts must set out an adequate mechanism for working out what is due and when. The payer (or a specified person) should issue a payment notice stating the sum it considers due and how it is calculated. If the payer wants to pay less than the notified sum, it must serve a pay less notice within the time the contract (or the statutory scheme) allows before the final date for payment. Where no valid payment notice is given, the payee can in many cases rely on its own application or a default payment notice. The Act also gives a right to adjudication and, after notice, a right to suspend work for non-payment. Some contracts, such as most work for residential occupiers, fall outside these rules. You can read the legislation on legislation.gov.uk, and take legal advice on any specific dispute.

For funders, a contractor that tracks notices properly and enforces its rights is a lower risk. Missed pay less notices, or a habit of accepting late reductions without challenge, can weaken the value of your debts.

Retentions, pay-when-paid, contra-charges and CIS

Several features of construction billing reduce what a funder can advance against, so it helps to understand each one before you apply.

  • Retentions. The payer holds back a percentage of each payment until practical completion and the end of the defects period. Because release is often months or years away and can be disputed, most funders do not lend against retentions, or lend very little.
  • Pay-when-paid. The Act makes most pay-when-paid clauses ineffective, except where a party further up the chain is insolvent. Funders still assess the main contractor and, where relevant, the end client, because a weak chain can delay payment in practice.
  • Contra-charges and set-off. Main contractors may deduct sums for delays, defects, cleaning, attendance or damage. Funders reduce their view of your debts to allow for this, and a history of heavy contra-charges will limit the facility.
  • CIS deductions. Under the Construction Industry Scheme, contractors deduct tax from payments to subcontractors on the labour element unless the subcontractor holds gross payment status. A funder advances against the net amount you will actually receive, so gross payment status can increase usable funding.

Illustration: from application to fundable amount

Illustration only. The figures are round and hypothetical, and every funder applies its own rules. A groundworks subcontractor submits an application for £100,000 of work to date. The main contractor's payment notice values it at £90,000, holds back £5,000 as retention and deducts a £3,000 contra-charge for site cleaning. A further £2,000 is deducted under CIS on the labour element. The subcontractor will actually receive £80,000.

A construction funder would typically base its advance on something close to that £80,000, not the £100,000 applied for, and would leave the retention out entirely. Understanding this gap before you apply avoids the disappointment of a facility that looks smaller than your ledger.

Why only some lenders fund construction debt

Many mainstream invoice finance providers exclude construction, or accept only simple supply-only invoices, because construction debts can shrink or be delayed after they are raised. Valuation disputes, variations, set-off, retentions and the knock-on effect of insolvency in the contract chain all make collection less predictable than with standard trade invoices. If a contractor fails mid-job, a funder may struggle to collect for partly finished work.

The lenders that do fund construction usually have specialist teams with quantity surveying knowledge, review contracts individually and monitor jobs more closely. That extra work and risk means construction facilities may be priced differently from general facilities, with more conservative advances, higher minimum fees or additional checking costs. Some prefer to fund selected contracts or customers on a selective invoice finance basis rather than the whole ledger.

Which contractors it suits, and which it does not

Construction invoice finance typically suits contractors that work for established main contractors or public bodies, bill regularly and can show a track record of applications agreed close to the amount claimed. Common examples include:

  • Specialist subcontractors in trades such as roofing, drylining, cladding and flooring
  • Mechanical and electrical (M&E) contractors, including electrical contractors
  • Groundworks and civil engineering firms (see our civil engineering funding guide)
  • Labour supply businesses, which invoice on timesheets and are often easier to fund
  • Plant hire and scaffolding businesses that invoice on hire periods
  • Utility contractors working on framework agreements

It is harder to arrange for contractors working mainly for homeowners, businesses with a few large fixed-price contracts in dispute, or firms with recent losses or HMRC arrears. Suppliers to the trade, such as builders merchants, usually raise standard invoices and can often use mainstream facilities instead.

How long it typically takes

A construction facility typically takes around three to six weeks to set up, and sometimes longer for larger ledgers. Specialist funders often review contracts and sample applications individually, and may want to speak to main contractors or check payment histories. A selective line against one or two strong contracts can sometimes be arranged faster. Having contracts, notices and a clear debtor breakdown ready shortens the process.

Security and guarantees

Lenders usually take an assignment of the debts funded and a debenture over the company. Personal guarantees from directors are common in construction, often with warranties about the accuracy of applications and the absence of undisclosed disputes. Where a bank already holds a charge, a deed of priority is normally needed.

How the costs are structured

Construction facilities generally follow the standard invoice finance model: a service fee, calculated on turnover or invoices funded, and a discount charge on the money drawn, usually a margin over Bank of England base rate and charged daily. Because of the extra checking and risk, construction may be priced differently, with higher minimum fees, contract review or survey fees, and charges for disapproved applications. Whole-ledger facilities usually carry a minimum term and notice period, while selective facilities charge per invoice or contract. Ask for a full schedule of charges before you commit.

Alternatives to construction invoice finance

Depending on what you need the money for, other options can sit alongside or replace invoice finance:

Underwriting

What lenders assess

Lenders assess the quality of your contracts and customers as much as your own accounts. The main points they review are:

01

The contract form (for example JCT, NEC or bespoke subcontracts), payment terms and any restrictions on assignment

02

The creditworthiness of main contractors and end clients, and how concentrated your work is

03

Your history of applications against certified and paid sums, and the level of contra-charges

04

Retention balances, outstanding disputes and adjudications

05

CIS status, VAT position and HMRC payment record

06

Profitability, work in progress, order book and director experience

Checklist

Documents lenders usually ask for

  • Filed accounts and current management accounts
  • An aged debtor report separating applications, certified sums and retentions
  • Copies of key subcontracts and any framework agreements
  • Recent applications for payment, payment notices and pay less notices
  • A contract schedule showing values, progress and expected completion dates
  • CIS statements and VAT returns
  • Business bank statements and details of existing borrowing
A transaction we arranged

£150,000

Main contractors slow to pay. £150K released from selected invoices.

A specialist subcontractor wanted cash from a few large invoices without putting its whole sales ledger on a factoring facility.

Construction receivables need a lender that understands how contract payments really work.

Read the transaction
Sector
Construction
Structure
Selective invoice finance
Outcome
Completed

Pros and cons

Advantages

  • Turns long payment cycles into usable working capital
  • Funding grows as you win and bill more work
  • Helps you pay labour, materials and CIS obligations on time
  • Specialist funders understand construction billing

Disadvantages

  • Fewer lenders, more scrutiny and often more conservative advances
  • Retentions and disputed sums are usually excluded
  • Costs can be higher than mainstream invoice finance
  • Reporting needs to track applications, notices and set-off carefully
Side by side

Compare your options

How the main business finance structures work. Lenders set their own terms, so treat this as a guide to the questions to ask.

OptionHow you repaySecurityOften used for
Unsecured business loan Fixed instalments, usually monthlyNo charge over assets; a personal guarantee is usually requiredGrowth, stock, tax bills and cash flow
Secured business loan Fixed instalments, often over a longer termA charge over property or other assetsLarger sums, property and refinancing
Revolving credit facility Interest on what you draw; repay and redrawVaries by lender and caseRecurring or uneven cash flow gaps
Merchant cash advance A share of future card takingsNo charge over assetsCard-taking businesses with uneven months
Asset finance Regular payments over the life of the assetThe asset being financedEquipment, vehicles and machinery
Invoice finance Settled as customers pay their invoicesYour unpaid invoicesBusinesses waiting on customer payment

General information only. Every lender has its own criteria, and all finance is subject to status.

Applications for payment versus invoices

An application for payment is a claim for the value of work carried out to a point in time, whereas an invoice is a demand for a fixed sum that has already been agreed. That distinction matters to funders.

Many lenders will not treat an application as a debt until it has been valued or certified, because the payer may dispute quantities, rates or variations. Some contracts require a VAT invoice only after the payment notice, which changes when a funder will recognise the amount. A clear record of applications made, amounts certified and amounts paid on each job helps a lender judge how much of your ledger it can rely on.

Construction invoice finance versus contract funding

FeatureConstruction invoice financeContract funding
What is fundedApplications and invoices already raisedCosts of starting and delivering a specific contract
TimingAfter work is done and applied forBefore and during the contract
Main risk assessedCollectability of each debtAbility to complete the contract profitably
ScopeWhole ledger or selected contractsUsually one contract at a time
Repaid fromCustomer paymentsContract receipts over the job
The broker’s view

How we help

We start by looking at your contracts, customers and debtor breakdown to see which parts of your ledger a construction funder is likely to accept. We then approach lenders on our panel with real appetite for construction debt, compare their advances, exclusions, fees and terms, and explain what each one means for your cash flow. Lenders make every credit decision. It is free to enquire; any broker fee is disclosed separately before you proceed.

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FAQs

Questions clients ask

Can I get construction invoice finance if I am a new subcontractor?

It is harder but not impossible. Some funders will consider a business with a short trading history if the directors have relevant industry experience and the work is for strong main contractors. A selective facility against one contract, or labour supply invoicing based on timesheets, is often the easier starting point while you build a payment record.

Does it matter if I work under NEC rather than JCT contracts?

Funders work with both, but each form has its own payment, compensation event and set-off provisions, so the lender will read the actual terms. Heavily amended subcontracts, clauses restricting assignment or unusual payment periods can reduce what is fundable. Sending clean copies of your main contract forms early helps the funder give a reliable view.

Can I fund work for public sector clients?

Often, yes. Public bodies are usually reliable payers, which can make the debt attractive, although some frameworks restrict assignment or require consent. Where you are a subcontractor, the funder also looks at the main contractor between you and the public client, because that is who pays you.

What happens if a main contractor goes into administration?

Money owed by the insolvent contractor may not be collected in full, and with a recourse facility you would normally have to repay the funder for those debts. Bad-debt protection can reduce this risk where available. Spreading work across several main contractors, and checking their credit before tendering, also limits exposure.

Can a CIS-registered sole trader use construction invoice finance?

Some providers fund sole traders and partnerships working under the Construction Industry Scheme, but most construction invoice finance is aimed at limited companies with a regular flow of applications. Funders will allow for CIS deductions and retentions when working out how much can be advanced. If you need money to start a contract rather than fund work already done, JCT contract finance may be a better fit.

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