Getting paid faster as a subcontractor in the construction supply chain

Getting paid in the construction industry can feel like an uphill battle, especially for smaller subcontractors. You’re often at the mercy of main contractors who hold most of the leverage, dictating long payment cycles and complex terms that can starve your business of essential cash flow. This article provides practical, UK-specific steps you can take to regain control, from negotiating better terms before you even start work to effectively chasing payments when they become overdue. We’ll cover your statutory rights and the processes you can use to ensure you get paid faster and more reliably.

Understanding the Landscape: Why Construction Payments Are So Slow

Before you can fix the problem, it helps to understand why the construction supply chain is so prone to payment delays. Unlike a simple transaction where you sell a product and send an invoice, construction payments are part of a complex, cascading chain.

• The Payment Chain: The ultimate client pays the main contractor, who then pays their tier-one subcontractors, who in turn pay their own sub-subcontractors and suppliers. A delay at any point in this chain has a domino effect, and it’s almost always the smallest firms at the bottom who suffer the most.
• "Pay When Paid" Culture: Historically, many main contractors used "pay when paid" clauses, meaning they would only pay you once they themselves had been paid by the client. While these clauses are now largely unenforceable in UK construction contracts (thanks to the Housing Grants, Construction and Regeneration Act 1996, often called the "Construction Act"), the mindset often persists. It's often replaced by "pay when certified", which links your payment to a third-party certifier approving the work, adding another potential point of delay.
• Retention Money: It is standard practice for main contractors to hold back a percentage of the value of your work as "retention." This is typically around 3-5% of the contract value. Half of this retention is usually released on practical completion of the project, but the final half is often held for a 12-month defects liability period. For a small subcontractor, this means a significant chunk of your money can be tied up for a year or more after you’ve finished the job.
• Complex Application Processes: In construction, you don't always just send a simple invoice. Most contracts require you to submit a detailed "Application for Payment" at regular intervals (usually monthly). These applications require extensive supporting evidence and must adhere to strict contractual deadlines and formats. Any error or omission is an easy excuse for the main contractor to delay payment.

Before You Even Sign: Negotiating the Contract

The single most effective thing you can do to improve your payment speed happens before you lift a single tool. The terms you agree to in your contract will dictate your financial life for the duration of the project. While the main contractor may present their terms as "standard and non-negotiable," you often have more leverage than you think, especially if you provide a specialist service.

Scrutinise the Payment Terms

Read the payment section of the proposed contract with a fine-tooth comb. Do not skim it. Pay close attention to:

• Payment Cycle: How long after you submit your application will you be paid? 30 days is good, 60 days is common but challenging, and anything over 60 days should be a major red flag. Be clear on when the clock starts. Is it 30 days from the date of your application, 30 days from the end of the month in which you applied, or 30 days from the date the work is certified by the client’s agent? "30 days from end of month" can easily become a 60-day wait in reality.
• The "Due Date" and "Final Date for Payment": Construction contracts have a specific legal meaning for these terms. The "due date" is the date the payment technically becomes due. The "final date for payment" is the deadline by which the cash must be in your bank. The gap between these two dates is the payment period. Make sure both are clearly defined.
• Retention: What is the retention percentage? Is it the standard 3-5% or something higher? When is it released? Push for the release of the first half on practical completion of your works, not the entire project. For the final release, try to negotiate a shorter defects liability period than the standard 12 months if appropriate for your trade.
• Pay When Certified: If the contract includes "pay when certified" clauses, understand exactly who is doing the certifying and what the process involves. This can be a major bottleneck if the certifier is slow or difficult to deal with.

Push Back (Strategically)

Challenging a main contractor’s terms can be intimidating, but it’s a commercial negotiation. Frame your requests in a commercial, not confrontational, way.

Instead of saying, "Your 90-day terms are unacceptable," try:

"To maintain the competitive pricing we've offered, we need to manage our own supplier payments and cash flow effectively. Our standard terms are 30 days, which allows us to do this. Can we amend the contract to reflect 30-day payment terms?"

If they won't budge on the headline payment term (e.g., 60 days), try to negotiate other elements. Could they agree to a lower retention percentage? Could they pay for materials on delivery rather than only when installed? Could you agree on a project bank account, where the client’s money is held in a trust account and paid directly to the whole supply chain simultaneously?

Propose a Clear Payment Schedule

To reduce ambiguity and the potential for disputes, propose a detailed schedule of payments linked to clear, verifiable milestones. This is particularly effective for lump-sum jobs.

For example, instead of vague monthly valuations, you could agree:

• 25% on completion of first-fix electrics.
• 25% on completion of second-fix electrics.
• 40% on successful testing and commissioning.
• 10% on handover of all documentation and certification.

This makes it harder for a contractor to dispute the value of work completed and gives you clear trigger points for payment applications.

Mastering the Application for Payment Process

In construction, your application for payment is your invoice. Getting it right is non-negotiable. A sloppy or incomplete application is the number one reason legitimate payments are delayed. The main contractor's commercial team is looking for any discrepancy as a reason to query your application and push it to the back of the queue.

Get it Right First Time

• Be on Time: The contract will specify a date each month for applications to be submitted. Submitting a day late can mean you miss that month's payment cycle entirely, resulting in a 30-day delay. Set a recurring calendar reminder.
• Provide All Documentation: Your application is not just one number. It must be substantiated. This means including signed timesheets, delivery notes for materials, daywork sheets, plant hire tickets, photos of completed work, and any other evidence required by the contract. Create a checklist for each application to ensure nothing is missed.
• Be Precise: Reference the contract, the schedule of works, and the relevant line items. Clearly show how you have calculated the value of the work you are claiming for. Ensure your maths is correct and that the cumulative value tracks correctly from one month to the next.
• Get Proof of Submission: Don't just fire it into a generic accounts@ email address. Send it to the specific person named in the contract (usually the quantity surveyor) and request an email read receipt or a simple acknowledgement of receipt. This creates a paper trail and proves you met your deadline.

Understand Payment Notices and Pay Less Notices

The Construction Act gives you powerful protections here. Once you submit a valid application for payment, the main contractor has a legal duty to respond.

• Payment Notice: The contractor must issue a "Payment Notice" no later than 5 days after the payment was due. This notice must state the sum they consider to be due and the basis on which that sum was calculated.
• Pay Less Notice: If the contractor intends to pay less than the amount stated in their own Payment Notice (or less than the amount you applied for, if they fail to issue a Payment Notice), they must issue a "Pay Less Notice". This must be issued a set number of days before the final date for payment and must set out, in detail, the grounds for paying less and the calculation.

This is critical: If a main contractor fails to issue a valid Payment Notice or a valid Pay Less Notice in time, you are generally entitled to be paid the full amount you applied for on the final date for payment. This is often referred to as a "smash and grab" adjudication, and it is a very powerful tool for enforcing payment.

When the Due Date Passes: A Professional Chasing Process

Even with a perfect application, payments can still be late. A systematic, professional chasing process is essential. It shows you are organised and serious about being paid.

The Day After: The Gentle Nudge

The day after the final date for payment has passed, send a polite, professional email.

Subject: Overdue Payment - [Your Company Name] / Application [Number]

Dear [Contact Name],

Hope you're having a good week.

This is just a friendly follow-up to note that payment for our application [Number] for £[Amount], due yesterday, is now overdue.

Could you please let me know when we can expect to receive the funds?

Best regards, [Your Name]

7 Days Overdue: The Firmer Follow-Up

If you haven't been paid or received a credible promise of payment after a week, it's time to pick up the phone. Call the accounts payable department or the contractor's quantity surveyor. Be polite but firm. Reference your previous email and ask for a specific date for payment. At this stage, it's reasonable to mention that the debt is now accruing interest under the Late Payment of Commercial Debts (Interest) Act 1998.

Automating the Initial Chasing

Manually tracking and chasing dozens of applications across multiple projects is a huge administrative burden. This is where automation can be a game-changer for the initial, polite stages of chasing. Tools like InvoiceReminder can help automate these first follow-up emails. By connecting to your accounting software (like Xero, QuickBooks, Sage, or FreeAgent), it can send scheduled reminders for overdue amounts, freeing you up to focus on the more complex disputes that require a phone call or formal escalation.

The Power of Statutory Late Payment Rights

For business-to-business debts in the UK, you have a statutory right to claim interest and compensation for late payment. This is not something you need to have in your contract; it's the law.

The interest you can claim is 8% plus the Bank of England's base rate. The base rate varies, so you should always check the current rate when calculating it.

In addition to interest, you can claim a fixed sum as compensation for the cost of recovering the debt. The amount depends on the size of the debt.

Debt Amount	Compensation Payable
Up to £999.99	£40
£1,000 to £9,999.99	£70
£10,000 or more	£100

You don't have to threaten this on day one, but formally adding it to the outstanding balance in your 'Letter Before Action' shows the contractor that the cost of not paying you is increasing.

Escalation: When Standard Chasing Fails

If polite reminders and phone calls don't work, you need to escalate the matter formally. These steps are serious and should be used when a significant amount is overdue and the contractor is being unresponsive or unreasonable.

Letter Before Action

This is a formal letter, sent by email and post, that is the final step before you initiate legal proceedings. It should clearly state:

• The project and application/invoice numbers.
• The outstanding amount.
• The amount of statutory interest and compensation you have added.
• A clear statement that if payment is not received within a set period (e.g., 7 or 14 days), you will commence formal proceedings without further notice.

This letter often gets a result from a previously unresponsive accounts department because it signals your intent to take action that will cost them time and money.

Statutory Demand

For an undisputed debt over £750, a Statutory Demand is a very powerful tool. It is not a court process but a formal demand that gives the debtor company 21 days to pay. If they fail to pay or apply to have it set aside, you can then petition the court to have their company wound up (liquidated). The threat of being put out of business is often enough to secure immediate payment. This is an aggressive step and should be used with caution, but it is highly effective for clear-cut, undisputed debts.

Adjudication

This is the default dispute resolution mechanism for UK construction contracts. It is a fast-track (usually 28-day) process where an independent adjudicator makes a binding decision on a dispute. It was specifically designed to resolve cash flow disputes quickly without waiting for lengthy court battles. If a contractor has failed to issue a valid Pay Less Notice, or is unfairly withholding money for alleged defects, you can take them to adjudication. The adjudicator’s decision is binding and enforceable by the courts, meaning you get your cash. While there are costs involved, it is far cheaper and faster than going to court.

Suspending Work

The Construction Act also gives you a statutory right to suspend performance of your work for non-payment. If a sum is due and has not been paid by the final date for payment (and no valid Pay Less Notice has been served), you can give the main contractor at least 7 days' written notice of your intention to suspend work. This is a massive lever. Stopping work on a live site causes huge disruption and puts immense pressure on the main contractor to resolve the payment issue immediately. It's a last resort as it can damage relationships, but it's a right you should be aware of.

Frequently asked questions

Can a main contractor refuse to pay me if their client hasn't paid them?

In most cases in the UK, no. "Pay when paid" clauses are made unenforceable by the Housing Grants, Construction and Regeneration Act 1996 for the majority of construction contracts. The main contractor's payment obligation to you is separate from them being paid by their client.

What's the difference between an invoice and an application for payment?

An application for payment is a detailed request for an interim payment under the terms of a construction contract, valuing the work done to date. An invoice is typically a simpler document requesting payment for a completed transaction. Your contract will specify which document you need to use and the process you must follow.

How much interest can I legally charge on a late payment in construction?

For business-to-business contracts, the Late Payment of Commercial Debts (Interest) Act 1998 allows you to charge statutory interest at a rate of 8% plus the current Bank of England base rate. You can also claim a one-off fixed compensation sum of £40, £70, or £100, depending on the size of the debt.

What is a Pay Less Notice and why is it so important?

A Pay Less Notice is a formal notice a client or contractor must issue if they intend to pay less than the sum you have applied for. It must be issued before the final date for payment and clearly explain their calculation. If they fail to issue a valid and timely Pay Less Notice, you are generally entitled to be paid the full amount you applied for, which can be a powerful tool for enforcement.

Is it worth taking a main contractor to adjudication?

For significant payment disputes, adjudication is often the best course of action. It's a statutory 28-day process designed specifically to resolve construction disputes quickly and protect cash flow. The adjudicator's decision is temporarily binding, meaning the losing party must pay up straight away. It is much faster and more cost-effective than traditional court proceedings.

Can I legally stop working if I am not being paid?

Yes, in many circumstances. The Construction Act gives a party to a construction contract the right to suspend performance of their obligations if a due amount is not paid in full by the final date for payment. You must first give the paying party at least seven days' written notice of your intention to suspend work. It is a powerful right but should be used as a last resort.

Automate Your Reminders and Focus on What Matters

Chasing payments in the construction industry is a repetitive but vital task that can consume hours of your time. By setting up a robust process, from contract negotiation through to final payment, you can significantly improve your cash flow and reduce stress.

For the crucial early stages of chasing, automation can provide consistency and save you valuable admin time. InvoiceReminder is designed for UK freelancers and small businesses to automate this process. It connects to popular accounting software like Xero, QuickBooks, Sage, and FreeAgent to send scheduled, escalating email reminders for your overdue invoices. This helps you establish a professional and consistent chasing process from day one, so you can focus your energy on running your business, not your credit control department. The core email reminder features are currently available at no cost.