What Is Factoring and How It Works

Cash flow can make or break a growing business. If you’re profitable on paper but constantly waiting 30–90 days for customers to pay, it’s hard to cover payroll, stock or your next big order.

That’s where factoring (also called invoice factoring or invoice finance) comes in. It’s a way to unlock cash tied up in unpaid invoices so you can keep moving without taking out a traditional loan.

In this guide, we explain what factoring is, how it works in the UK, the legal documents and risks to watch, and practical steps to decide if it’s right for your business.

What Is Factoring And How Does It Work?

Factoring is a type of finance where you sell your outstanding invoices to a finance provider (a “factor”) at a discount in exchange for immediate cash. The factor typically advances 70–90% of the invoice value upfront, then pays you the balance (minus fees) when your customer pays.

The Basic Workflow

• You provide goods or services and issue an invoice to your customer.
• You “assign” the right to receive payment under that invoice to the factor.
• The factor advances a percentage to you straight away (for example, 80%).
• The factor usually takes over collections and is paid directly by your customer.
• When the customer pays, the factor remits the remaining balance to you, after deducting its fees and any reserve adjustments.

Some providers operate on a “whole turnover” basis (you factor most or all invoices). Others let you pick and choose specific invoices. Pricing varies, but expect a service fee (a percentage of invoice value) and a discount rate (an interest-like charge based on how long the invoice takes to get paid).

Recourse vs Non‑Recourse Factoring

• Recourse: If the customer doesn’t pay after a set period, you must buy back the invoice or the factor can claw back the advance. Cheapest, but you retain credit risk.
• Non‑recourse: The factor absorbs the risk of customer insolvency (subject to conditions and caps), so you won’t have to repay the advance if the customer goes bust. Fees are higher, and it usually excludes disputes or late payment not linked to insolvency.

For many SMEs, recourse factoring is the norm. Non‑recourse can be attractive if you trade with a small number of large customers, but read the fine print about exclusions.

Is Factoring The Same As Invoice Discounting?

They’re related, but not identical.

• Factoring: The factor typically manages your sales ledger and collections. Your customers are often notified to pay the factor directly. This is common for smaller businesses that want collections and credit control support.
• Invoice discounting: You still collect from your customers yourself and the finance provider sits more in the background. It’s often “confidential” (customers aren’t notified) and suits businesses with established finance functions.

Some providers offer hybrid or selective products. The right choice depends on your margins, internal processes, customer mix and whether you’re comfortable with customers dealing with a third party for payments.

What Are The Legal Building Blocks Behind Factoring?

Under UK law, the key mechanism that enables factoring is the assignment of receivables. In simple terms, you transfer (assign) your right to be paid under an invoice to the factor, so they step into your shoes to collect it.

Assignment Of Receivables

Most factoring agreements use a legal assignment documented in the finance contract and supporting notices to your customers. Understanding how assignment differs from other transfers helps when reviewing contract clauses and customer terms, so it’s worth getting across the basics of assignment.

Depending on the provider’s structure, you may sign or reference a Deed of Assignment to formalise the transfer of receivables. Your customers might also receive a “notice of assignment” telling them to pay the factor going forward.

Limits On Anti‑Assignment Clauses

Some customer contracts try to prohibit you from assigning receivables. The Business Contract Terms (Assignment of Receivables) Regulations 2018 generally make anti‑assignment clauses ineffective for receivables in many business contracts (with carve‑outs, for example, certain financial services and interests in land). This regime was designed to help small businesses access invoice finance even if their customer terms try to block it.

It’s still sensible to have your customer-facing terms reviewed and, where you can, ensure they don’t prevent or complicate factoring. If a key contract is outside the Regulations, you may need your customer’s consent.

Data Protection And Sharing Customer Information

To factor invoices, you’ll share customer identities, balances and contact details with the finance provider. That’s personal data if your customers are sole traders or you hold contact details for individuals at a company. You must comply with UK GDPR and the Data Protection Act 2018 when you share personal information with third parties. In practice, that means:

• Having a lawful basis to share data (usually for contract performance or legitimate interests).
• Keeping your Privacy Policy accurate and transparent about invoice finance providers you use.
• Putting appropriate contractual safeguards in place with the factor (for example, confidentiality and data protection clauses).

Late Payment And Collections

The Late Payment of Commercial Debts (Interest) Act 1998 gives you the right to claim statutory interest and fixed charges on overdue business invoices. Your factor may exercise these rights as part of collections, but you’ll need to follow the contract and any agreed credit control process.

You’ll also need to ensure your invoices meet UK standards (customer details, VAT, description of goods/services, etc.), as clean documentation helps prevent disputes and speeds up funding. If you’re tightening up your process, this explainer on UK invoice requirements is a good reference.

What Contracts Will You Sign When You Use Factoring?

Factoring is contract‑heavy by design. Before you sign, take time to understand what each document does and where the risk sits.

1) Factoring Agreement

This is the core contract with the finance provider. Expect clauses covering:

• Scope: Whole turnover vs selective invoices, eligible debtor criteria, and any concentration limits (e.g. no more than 30% of the ledger from one customer).
• Funding Terms: Advance rate, reserves/retentions, fees (service fee, discount rate), and how days are counted for pricing.
• Recourse: When you must repurchase an invoice, dispute triggers, and time limits.
• Assignment & Notice: How invoices are assigned and when customers are notified to pay the factor.
• Warranties: You’ll promise that invoices are valid, undisputed and free from set‑off or prior assignments.
• Undertakings: Ongoing obligations like delivering ledger reports, notifying disputes, and not changing payment terms without consent.
• Termination: Minimum term, notice periods, exit fees, and how the facility is wound down.

2) Security Documents

Many providers ask for a fixed and floating charge over your assets or a specific charge over receivables. In lender terminology, that’s often documented as a General Security Agreement registered at Companies House. Where the business is owner‑managed, providers sometimes require a Deed of Guarantee and Indemnity from directors as additional comfort.

3) Assignment/Notice Documents

As noted, the transfer is often evidenced by a schedule of assigned invoices and a notice of assignment to your customers. In some setups, you’ll sign or reference a separate Deed of Assignment to cover legal formalities.

4) Data And Confidentiality Protections

Factoring relies on sharing customer lists and ledger data. Check the agreement’s confidentiality provisions and data processing clauses. If you want a standalone contract to govern how data flows between you and the funder (especially where you also share supplier or end‑consumer data), consider putting a Data Sharing Agreement in place alongside the main facility.

5) Align Your Customer Terms

It helps if your customer‑facing payment terms are consistent with the factoring arrangement: clear due dates, late payment provisions, and rights to assign receivables. If you’re refreshing your sales docs, it’s a good time to implement robust Terms of Trade so you’re protected from day one across credit, delivery, and dispute handling.

What Are The Risks And How Do You Manage Them?

Factoring can be a great cash flow tool, but like any finance product, it comes with trade‑offs. Here are the common risk areas and how to stay on top of them.

Control Over Customer Relationships

Because the factor often manages collections, your customers may interact with them for payment queries. That’s not necessarily negative-some providers are excellent-but you should understand their collection approach and how disputes are handled. Ask for service standards and escalation paths so your brand is protected.

Fees, Reserves And Real Cost

Beyond headline rates, look for audit fees, bank transfer charges, minimum service fees, and exit fees. Reserves (retentions) can be adjusted for credit notes, disputes or concentration risk. Model different debtor days (e.g. 30, 45, 60+) to see the true annualised cost and impact on margin.

Recourse Risk

In recourse facilities, you carry the can if the customer doesn’t pay or raises a dispute outside the factor’s criteria. Keep documentation squeaky clean (signed delivery notes, proof of service, acceptance emails) and embed a strong pre‑invoice QA so invoices you factor are “fundable” and less likely to bounce back.

Contractual Restrictions

Watch for cross‑default or “all monies” language in security documents that could affect other lenders. If you already have a bank overdraft or asset finance, you may need intercreditor arrangements. Also review any key customer contracts for restrictions that fall outside the 2018 assignment Regulations.

Data Protection And Confidentiality

You remain responsible for lawful data sharing and safeguarding confidential information. Ensure the factor’s data security and privacy commitments align with your obligations. Keep customer comms clear about where to pay, and update your privacy notices as needed.

Termination And Exit

Facilities often have minimum terms and auto‑renewals. Understand the notice window, exit fees, and how the ledger is reconciled on termination. If you’re planning to refinance or move to invoice discounting later, check for assignment release mechanics and security discharge timelines.

Set‑Off And Disputes

If a customer has a legitimate set‑off (for example, defective goods or unresolved credit notes), the factor may reduce availability or require you to repurchase the invoice. A tight operational process-clear order confirmations, delivery proofs, and efficient handling of credits-reduces this risk significantly.

Is Factoring Right For Your Business? A Quick Checklist

There’s no one‑size‑fits‑all answer. Use this checklist to pressure‑test your fit.

Commercial Fit

• Do you sell on trade credit to other businesses with predictable debtor days?
• Are your margins sufficient to absorb fees while still improving cash flow?
• Is your ledger diversified (not concentrated in one or two customers), or will the provider accommodate that risk?
• Do your customers accept dealing with a third party for payments, or would confidential invoice discounting be better?

Operational Readiness

• Are your invoices accurate, timely and compliant with UK requirements?
• Do you have robust proof of delivery/service and a fast dispute‑resolution process?
• Can you generate clean debtor reports and respond to audit requests quickly?
• Will you adjust your credit control process to the provider’s workflow?

Legal And Documentation

• Have you reviewed assignment mechanics and any anti‑assignment language with counsel?
• Do you understand the security the provider will take (and the impact on any existing lenders)?
• Have you assessed whether director guarantees are being requested and what they cover?
• Are your customer‑facing payment terms up to date and consistent with the facility?

Alternatives To Consider

• Invoice discounting: Similar funding with you controlling collections.
• Overdraft/working capital line: Useful if you have strong financials and collateral.
• Supplier finance/extended terms: Negotiate better supplier terms to smooth cash flow.
• Collections improvements: Tighten credit checks and dunning before turning to finance; if things escalate, you might consider steps like a pre‑action letter or, in some cases, UK invoice law routes to chase overdue payments.

Practical Steps To Get Ready For Factoring

1) Clean Up Your Ledger And Documents

Resolve old disputes and unapplied credits before you apply. Make sure your debtor listings match statements and that your invoices meet the basics under UK law. A tidy ledger improves your advance rate and speeds up onboarding.

2) Align Your Customer Terms And Processes

Standardise due dates, late payment provisions and assignment permissions in your contracts. If you don’t have strong sales terms, get robust Terms of Trade in place and ensure your team follows them consistently.

3) Map Data Flows And Privacy

List what customer data you’ll share, why you need it, and where it goes. Update your privacy notices and ensure your agreement with the funder has suitable confidentiality and data protection clauses. Consider a dedicated Data Sharing Agreement if the relationship is data‑intensive.

4) Review Security And Guarantees

Understand any fixed/floating charges and whether a Companies House filing will be made. If asked to sign a director guarantee, know exactly what you’re guaranteeing under the Deed of Guarantee and Indemnity and how you can limit exposure.

5) Understand Assignment Mechanics

Clarify when invoices are deemed assigned, what notices are sent to customers, and how repurchases work if a dispute arises. If the provider uses a deed or schedule of assigned invoices, ensure it aligns with your understanding of assignment and, where relevant, your Deed of Assignment.

Key Legal Questions We’re Often Asked

Can My Customer Contract Stop Me From Factoring?

Often not. The 2018 Regulations make anti‑assignment clauses ineffective for receivables in many B2B contracts, especially where the supplier is a small business. There are exceptions, so get a contract review for key accounts.

Will Factoring Affect My Other Finance?

It can. A new security interest may conflict with existing overdrafts or equipment finance. Your lenders might require consent or a deed of priority. Address this early to avoid onboarding delays.

What Happens If My Customer Doesn’t Pay?

In recourse facilities, you’ll typically have to buy back the invoice or the factor will set it off against future advances. In non‑recourse, the factor may absorb insolvency risk, but disputes or set‑off often remain your responsibility. The exact position sits in the factoring agreement-read it closely.

Is Factoring Regulated By The FCA?

Invoice finance for business customers is generally unregulated credit (different from consumer credit). However, providers follow industry standards and financial crime controls. Your main protections are contractual, so negotiating clear terms matters.

Key Takeaways

• Factoring converts your unpaid invoices into immediate cash by assigning receivables to a finance provider who advances a percentage upfront.
• The legal backbone is assignment: ensure the factoring agreement (and any Deed of Assignment) clearly set out how invoices transfer, when customers are notified, and who bears non‑payment risk.
• Align your operations before you apply: accurate, compliant invoices, quick dispute resolution, and consistent payment terms will improve funding and reduce recourse risk. If needed, refresh your Terms of Trade.
• Expect security documents (often a General Security Agreement) and, for owner‑managed companies, possible director guarantees via a Deed of Guarantee and Indemnity.
• Comply with UK GDPR when sharing debtor data with your factor-update privacy notices and consider a Data Sharing Agreement for clarity.
• Model the full economic cost (fees, discount rate, reserves and exit fees) and check how the facility interacts with your other lenders and key customer contracts.
• If factoring doesn’t fit, look at invoice discounting, overdrafts, supplier terms, or tightening collections under UK invoice law before escalating.

If you’d like tailored help reviewing a factoring agreement, aligning your terms, or setting up the right protections, you can reach us on 08081347754 or team@sprintlaw.co.uk for a free, no‑obligations chat.