Construction Retention Release Finance Explained
Construction firms often wait 12 to 24 months for retention funds to be released, creating cash flow gaps. Retention release finance lets limited company and LLP contractors borrow against those withheld sums before the defects period ends. FundBiz introduces eligible firms to specialist lenders who price against the retention debtor.
What is construction retention finance?
Retention release finance is a short-term facility that lets a construction business unlock cash tied up in contractual retentions before the formal release date. Main contractors typically withhold 3% to 5% of each payment application under JCT or NEC contracts, releasing half at practical completion and the remainder after the defects liability period, which commonly runs six to twelve months.
For subcontractors the effect compounds. A firm with around two million pounds of annual turnover may have eighty to one hundred thousand pounds sitting in retention at any one time. A lender advances a proportion of that withheld sum, usually 70% to 85% of the verified retention balance, and the business repays when the retention is released. The facility effectively converts a future receivable into immediate working capital.
Why retentions cause cash flow problems
Retentions compress margins at precisely the wrong moment, forcing contractors to fund ongoing labour and material costs from a reduced revenue base. The construction sector already operates on thin net margins, often in the low single digits for specialist subcontractors, so withheld retentions can represent the entire profit on a contract.
Late payment compounds the issue. Construction is consistently one of the worst-performing sectors for prompt settlement of subcontractor invoices. When a defects period drags on beyond the contractual deadline, businesses face the choice of pursuing dispute resolution, writing off the debt, or financing the shortfall from internal reserves.
Many smaller subcontractors have no reserves to draw on, making external finance the only practical route to maintaining payroll and buying materials for the next project.
Which lenders offer retention finance in the UK?
A small number of specialist lenders and asset-based finance providers offer dedicated retention release facilities, and terms vary considerably with contract type, debtor credit quality and trading history. Close Brothers and Bibby Financial Services both operate construction-aware lines that can accommodate retention balances.
Reward Finance Group and similar specialists have placed retention facilities for SME contractors. Some challenger banks, including Allica Bank, will consider retention-backed lending for established limited companies with audited accounts, though usually structured as a revolving credit facility rather than pure retention finance.
Where the requirement is really whole-book invoice discounting against your wider debtor ledger rather than a specific retention balance, that is invoice finance, which our sister site MarketInvoice covers. FundBiz focuses on introducing limited companies, LLPs and partnerships of four or more to the specialist lenders best suited to a defined retention release or bridging need.
Rates, fees and typical structures
Retention finance costs more than standard invoice discounting because the receivable is not immediately due and carries defects risk. Pricing typically includes a service charge of 0.8% to 1.5% of the facility value per month, plus a discount charge linked to the Bank of England base rate, currently 3.75% as of December 2025, commonly base plus 4% to 6% on drawn balances.
On a sixty thousand pound retention advance held for nine months, total financing costs would typically fall between four and a half and eight thousand pounds. Some lenders add arrangement fees. Where the retention debtor is a well-rated main contractor or a public-sector body, lenders may price more keenly because credit risk is lower.
Eligibility requirements
Most providers require a limited company or LLP structure, at least 12 months of filed accounts, and written evidence of the retention balance from the main contractor or employer. Some accept a signed final account or contract administrator certificate in lieu of audited accounts for newer businesses.
The quality of the retention debtor matters as much as the borrower's own credit profile. Lenders credit-check the main contractor or employer holding the funds. Local authority and housing association retentions are generally viewed favourably. Private developer retentions attract more scrutiny, particularly after a number of residential developers entered administration in recent years, leaving subcontractors with unrecoverable balances. Businesses with CCJs or HMRC arrears may still access retention finance through specialist panels, though pricing will be higher and advance rates lower. If a recent decline is the trigger, the construction late-payment routing sets out the alternatives.
| Lender / Provider | Min Turnover | Advance Rate | Monthly Cost (approx) | Best For |
|---|---|---|---|---|
| Close Brothers | £500k | Up to 85% | 0.8% to 1.2% + discount charge | Established contractors, strong debtors |
| Bibby Financial Services | £250k | Up to 80% | 0.9% to 1.4% + discount charge | SME subcontractors, mixed debtor quality |
| Allica Bank (revolving credit) | £500k | Facility-based | Base + 4.5% to 6% pa on drawn | Established Ltd cos, larger facilities |
| Reward Finance Group | £200k | Up to 75% | 1.2% to 1.5% + fees | Thin file, newer businesses |
| Specialist broker panel | £100k | 70% to 85% | Varies by lender | CCJs, HMRC arrears, complex cases |
Step by step
- Compile a full schedule of current retention balances, including contract name, main contractor or employer, contract value, amount withheld and expected release date.
- Gather your last two years of filed accounts plus recent management accounts showing current trading position.
- Obtain copies of the relevant contract sections confirming retention terms and any practical completion certificates already issued.
- Use a specialist introducer or broker rather than applying direct to a single lender, to access multiple providers without multiple credit searches.
- Review the full cost illustration from any lender, including service charge, discount charge and arrangement fees, before signing a facility agreement.
- Draw funds against verified retention balances as needed and repay when the retention is released by the main contractor or employer.
A specialist groundworks subcontractor based in the Midlands, trading as a limited company, had seventy-four thousand pounds in retentions spread across three main contractors, with release dates between eight and fourteen months away. Payroll pressure was acute.
Through a broker, the business secured a retention finance facility advancing 80% of the verified balances, releasing roughly fifty-nine thousand pounds within ten working days. Total financing costs over an average nine-month hold were approximately six and a half thousand pounds. The facility was repaid in full as each retention was released on schedule.
Frequently asked questions
Can a limited company or LLP access retention release finance?
Yes. Lenders prefer a limited company, LLP or established partnership because they take a legal assignment of the retention debt, which is cleaner to execute with an incorporated entity. FundBiz works only with limited companies, LLPs and partnerships of four or more, and matches each enquiry to lenders whose criteria the borrower can satisfy.
What happens if the main contractor becomes insolvent before releasing the retention?
This is the primary credit risk in retention finance. If the main contractor enters administration, the retention becomes an unsecured claim in the insolvency and recovery is uncertain. Lenders price this into their advance rates and credit-check the debtor before agreeing a facility. Depending on the facility terms, the borrower may still carry some residual liability.
How long does it take to receive funds after applying?
For straightforward cases with clean accounts and a well-rated retention debtor, most lenders issue a facility offer within five to ten working days of a complete application pack. The first drawdown typically follows within two to three working days of signing. Cases involving HMRC arrears, CCJs or private developer debtors can take longer.
Does taking retention finance affect my business credit score?
A facility agreement results in a credit search on the business, recorded at Companies House and with credit reference agencies. A well-managed facility repaid on time can have a neutral or mildly positive effect over time. Using a broker to approach multiple lenders usually means a single soft search rather than several hard searches.
Is retention finance regulated by the FCA?
Business lending to limited companies and LLPs is not subject to FCA consumer credit regulation, so most retention facilities fall outside FCA oversight. FCA-authorised lenders may apply their conduct standards voluntarily, and the Lending Standards Board's Standards of Lending Practice for Business Customers covers some providers. Always review the facility agreement carefully before signing.
Release the cash held in your retentions
Tell us your structure, your retention balances and the main contractors holding them, and we will match you against the specialist lenders most likely to advance before any hard search is run.
Open the eligibility checker →Founder & Managing Director, Muswell Rose, FundBiz
Adam is the founder and managing director of Muswell Rose and a founder of Best Business Loans Ltd, the company behind FundBiz. His background runs through commercial finance, mortgages and fintech, including as managing director of an invoice finance business. He oversees FundBiz's specialty finance comparison and the logic behind how businesses are matched to lenders.
Last reviewed: 29 June 2026
This is general information, not financial or legal advice. Last reviewed: 29 June 2026.