TL;DR: Most commercial B2B invoices for completed work or delivered goods can be factored to improve cash flow. However, invoices must be free from disputes and issued to creditworthy business clients rather than individual consumers.

What types of invoices can be factored?

Invoice factoring is a popular financial tool used by UK businesses to bridge the gap between issuing an invoice and receiving payment. Instead of waiting 30, 60, or even 90 days for a customer to pay, a business can “sell” its invoices to a factoring company to receive an immediate cash advance. However, not every bill a business sends out is suitable for this process. Understanding what types of invoices can be factored is essential for any business owner looking to manage their working capital more effectively.

Generally, factoring providers look for invoices that represent a “clean” debt. This means the work has been finished, the goods have been delivered, and there is a clear contractual obligation for the customer to pay the full amount. While the range of eligible invoices is broad, certain sectors and invoice structures are more favourable to lenders than others.

The core criteria for factorable invoices

To understand what types of invoices can be factored, it is helpful to first look at the basic requirements that almost all UK factoring companies insist upon. If an invoice does not meet these foundational standards, it is unlikely to be accepted for funding.

• Business-to-Business (B2B) or Business-to-Government (B2G): Factoring is almost exclusively reserved for invoices issued to other businesses or public sector bodies. Lenders generally do not factor invoices issued to private individuals (B2C).
• Completed performance: The invoice must represent a completed transaction. This means the services must have been fully rendered or the goods must have been physically delivered and accepted by the customer.
• Creditworthy customers: Because the factoring company relies on your customer to pay the debt, they will assess the creditworthiness of your clients. High-quality debtors make an invoice much easier to factor.
• No existing disputes: If a customer has already raised a query or a complaint about the work, a factor will typically refuse to fund that specific invoice until the issue is legally and practically resolved.

Sectors and specific invoice types

Different industries have unique ways of billing, and some are particularly well-suited to factoring. Here are some of the most common types of invoices that are regularly accepted by UK providers.

1. Manufacturing and Wholesale invoices

In these sectors, invoices are usually backed by a physical Proof of Delivery (POD) or a signed delivery note. Because there is clear evidence that the goods have changed hands, these are considered some of the safest invoices to factor. Lenders appreciate the simplicity of a manufacturing invoice where the debt is clearly defined by the quantity and price of items shipped.

2. Recruitment and Temporary Staffing

Recruitment agencies often face a cash flow squeeze because they must pay their temporary workers weekly, but their clients might not pay the agency for a month or more. Invoices in this sector are typically based on approved timesheets. As long as the timesheet is signed by the client, it serves as a robust guarantee that the work was done, making these invoices highly eligible for factoring.

3. Transport and Haulage

Similar to manufacturing, the transport industry relies on “jobs completed.” Invoices are usually supported by a consignment note or a signed delivery receipt. Since the logistics industry often operates on thin margins and high fuel costs, factoring these invoices is a common way to keep trucks on the road while waiting for payment from large retail or industrial clients.

4. Professional Services

Consultancy firms, marketing agencies, and IT service providers can often factor their invoices. These are generally based on project milestones or monthly retainers. The key here is ensuring that the client has formally signed off on the milestone. If the billing is based on “estimated time” without a final sign-off, a factoring company might be more hesitant to provide funds.

5. Construction Invoices (CIS)

The construction industry is unique because of the way contracts are structured. Invoices are often based on applications for payment or “stage payments.” While some traditional factoring companies avoid construction due to the complexity of “pay when paid” clauses and retentions, there are specialised providers who focus specifically on construction factoring. They understand how to handle invoices under the Construction Industry Scheme (CIS) and contractual disputes.

Invoices that are difficult or impossible to factor

While many businesses can benefit from this service, there are several types of invoices that typically fall outside the scope of what can be factored.

B2C Invoices: As mentioned, invoices sent to the general public are rarely factorable. This is largely due to the Consumer Rights Act and the administrative difficulty of chasing payments from hundreds of individual people. For businesses selling to consumers, merchant cash advances or traditional loans are often better alternatives.

Stage Payments or Progress Billings: If an invoice is sent for work that is only 50% complete, many factors will decline it. They prefer to fund the “final” debt. If the business fails before the other 50% is finished, the customer may legally refuse to pay the first half, leaving the factoring company at risk.

Conditional Sales: If the payment of an invoice is dependent on a future event—such as the customer selling the goods to someone else (sale or return)—it cannot be factored. The debt must be absolute and unconditional.

Invoices with a “Ban on Assignment”: Some large companies include a clause in their contracts that prevents you from “assigning” the debt to a third party. If this clause is present, you may not be able to use standard factoring, although some lenders may offer “confidential invoice discounting” as a workaround.

The role of credit checks in factoring

When you apply for factoring, the lender will not only look at your business but also at the credit history of your customers. They want to ensure that the people you are invoicing have the financial stability to pay their bills. This process often involves a credit search on your business and your major clients.

If you are curious about how your own credit profile might impact your ability to secure the best rates, you can check your status. Get your free credit search here. It’s free for 30 days and costs £14.99 per month thereafter if you don’t cancel it. You can cancel at anytime. (Ad)

Key benefits of factoring the right invoices

When you factor eligible invoices, you are essentially turning a static asset (the money owed to you) into a liquid one. This provides several advantages:

• Improved Cash Flow: You get access to up to 90% of the invoice value within 24 hours, which can be used to pay staff, suppliers, or HMRC.
• Reduced Admin: In a full-service factoring arrangement, the lender handles the credit control and collections, saving you time on “chasing” payments.
• Scalability: Unlike a fixed loan, factoring grows with your business. The more you invoice, the more funding you can access.
• Credit Protection: If you opt for “non-recourse” factoring, the lender may provide insurance against your customers going insolvent, though this typically comes with higher fees.

Understanding the risks and costs

While factoring is a useful tool, it is not without cost. Lenders charge a “service fee” (for managing the facility) and a “discounting fee” (essentially the interest on the money advanced). These costs can add up, especially if your customers are slow to pay.

Furthermore, if you choose “recourse factoring” and your customer fails to pay, the factoring company will ask you to buy the invoice back or will deduct the amount from your next advance. It is vital to read the terms and conditions carefully to understand who carries the risk of bad debt. For more information on business finance and your rights as a borrower, you can visit the UK government’s business finance guide.

People also asked

Can I factor invoices that are already overdue?

Most factoring companies only accept current invoices that are not yet due. If an invoice is already significantly overdue or in “bad debt” territory, it is generally ineligible for factoring.

Do I need to factor all of my invoices?

Standard factoring usually requires a “whole turnover” agreement where you factor all B2B invoices. However, “selective factoring” allows you to choose specific invoices or clients to factor, though it often carries higher individual fees.

What is the difference between factoring and invoice discounting?

In factoring, the lender manages your sales ledger and collects payments directly from your customers. In invoice discounting, you retain control over your credit control and the arrangement is usually kept confidential from your clients.

What happens if my customer disputes the invoice?

If a customer raises a valid dispute regarding the quality of work or goods, the factoring company will typically “reassign” the invoice back to you, meaning you must repay the advance until the dispute is settled.

Can a new startup factor its invoices?

Yes, many factoring companies work with startups because the funding is based on the creditworthiness of the customers rather than the trading history of the new business itself.

Final thoughts on invoice eligibility

In summary, what types of invoices can be factored depends largely on the clarity of the debt and the status of the customer. If your business operates in a B2B environment and provides clear evidence of work completed, invoice factoring could be a powerful way to unlock capital. By ensuring your invoices are accurate, undisputed, and issued to reliable clients, you can maximise your chances of securing a flexible and supportive funding facility.

Always remember to compare different providers and consider whether you want a facility that includes credit control or one that remains confidential. Factoring is a significant commitment, and choosing the right invoices to fund is the first step toward a healthier cash flow for your UK business.