How Milestone Payments Protect Tradespeople

Getting the work is only half the job. Tradespeople also need to know they will be paid for it.

Materials, fuel, wages, subcontractors and business expenses all need to be covered while a project is underway. When payments arrive late, even a busy and profitable business can run short of cash.

Milestone payments help tradespeople manage this risk by linking payment to clearly defined stages of work. Instead of relying on one large payment at the end of a project, both parties agree the work, price and completion requirements for each stage in advance.

The approach gives tradespeople greater visibility over when they will be paid, while giving customers a clear record of what their money covers. On Fort, funds for each milestone are secured before the work starts and released when the agreed stage is completed.

The payment problems facing UK tradespeople

Late payments remain a significant issue for small businesses and the construction industry.

Research published by Direct Line for Business in March 2023 surveyed 161 self-employed tradespeople and trades business owners. It found that respondents were owed an average of £6,984 in overdue payments, with each chasing an average of six late payments. The research also found that 57% of late-payment claims had been unsuccessful or remained unresolved.

These figures come from Direct Line's research into late payments among tradespeople, based on a survey conducted in February 2023. Although the research is not recent, it illustrates the direct financial pressure that unpaid invoices can create for small trade businesses.

More recent construction-sector evidence shows that payment timing remains a concern.

The Federation of Master Builders (FMB) and the Chartered Institute of Building (CIOB) surveyed 493 UK construction SMEs for their State of Trade Survey covering the second half of 2025. Their findings, published in 2026, showed that:

• 57% of firms reported invoices being paid within agreed terms.
• 29% experienced variable payment timelines.
• 13% reported frequent late payments.
• 51% reported lower-than-expected profits or losses.
• 20% said they feared their business viability was under threat.

These are separate findings, and the survey does not attribute every profit or viability concern to late payment. It does, however, show that payment uncertainty sits alongside wider financial pressures facing construction firms. Read the FMB and CIOB findings.

Government research provides a wider picture. A study commissioned by the Department for Business and Trade and the Office of the Small Business Commissioner, published in July 2025, estimated that late payments cost the UK economy almost £11 billion a year. It also estimated that 14,000 businesses close annually because of late payments. These figures cover UK businesses generally, not construction firms alone. Read the government's late-payment research.

The problem is not simply whether a customer intends to pay. It is whether the payment arrives when the business needs it.

Why cash flow matters to tradespeople

A builder can have a full schedule and still experience cash-flow problems.

Consider a straightforward extension project. The contractor may need to buy materials, pay subcontractors and cover labour costs before the customer makes the next payment. If that payment is delayed, the contractor must fund the gap from existing cash reserves or other available finance.

That becomes harder when several projects are running at the same time.

Government research published in September 2024 found that 18% of invoices in the construction sector were paid late on average, based on a survey of businesses across several sectors. The same research found that 40% of surveyed businesses identified their own customers being paid late as a driver of late payment. Source: Department for Business and Trade, late-payment performance and practices research.

The result can be a chain reaction. A homeowner delays paying a contractor, the contractor struggles to pay a supplier, and the supplier's cash flow is affected in turn.

Milestone payments cannot eliminate this wider problem, but securing funds before a defined stage begins can reduce the uncertainty surrounding that stage's payment.

What are milestone payments?

A milestone payment is a payment linked to the completion of a defined part of a project.

For example, a house extension might be divided into:

The exact stages depend on the project. A plumber, roofer or electrician undertaking a smaller job may need only one or two milestones, while a main contractor managing an extension may require several.

The important part is agreeing the scope, price and completion requirements before each stage begins.

On Fort, funds for a milestone are secured before the work starts and released when the agreed stage is completed. This means the tradesperson can see that the funds have been committed before starting the stage, rather than relying entirely on a promise of payment afterwards.

Five ways milestone payments protect tradespeople

1. Greater certainty over payment

A common risk is completing work and then waiting for the customer to pay.

With Fort's milestone payment system, funds for the agreed stage are secured before work begins. The contractor therefore has greater visibility over the payment attached to that stage.

This does not guarantee that every project will proceed without a dispute, but it addresses one important source of uncertainty: whether the agreed funds are available when the work is started.

2. Less time spent chasing invoices

Chasing overdue payments takes time away from quoting, completing work and running the business.

Direct Line for Business found that the tradespeople in its 2023 survey were chasing an average of six late payments each. Its research also identified time spent chasing payment as a concern for respondents. Source: Direct Line for Business.

A defined milestone schedule creates a clearer payment process. The work to be completed and the amount due are agreed in advance, giving both parties a common reference point.

Fort also keeps milestone information and project communications together, helping tradespeople maintain a clearer record of what was agreed and completed.

3. Clearer expectations with customers

Payment disputes can arise when the homeowner and contractor disagree about what a stage includes or whether it has been completed.

A milestone should define the work, the agreed price and what completion means. Where appropriate, photographs and supporting documents can help demonstrate progress.

These records give both parties something concrete to refer to when discussing the work and its associated payment.

Clear milestones do not prevent every disagreement, but they make expectations easier to establish before work starts.

4. Better visibility across multiple projects

When a tradesperson is managing several jobs, it is important to understand which payments have been secured, which stages are underway and what income is expected next.

A structured milestone schedule gives the contractor a clearer view of the payments associated with each project. That can support cash-flow planning alongside the business's own forecasts of materials, wages, overheads and other commitments.

It is not a substitute for working capital. Tradespeople still need to account for the costs incurred before a milestone is completed and its payment is released.

5. A clearer process when the scope changes

Additional work is a common source of financial disagreement.

A homeowner may request an extra socket, a different finish or a change to the original design. Without a clear record, the contractor may end up carrying out additional work without an agreed price.

Milestone-based project management works best when variations are documented and approved before the additional work proceeds. The revised scope and cost can then be reflected in the project records and payment arrangements.

Fort supports the recording of agreed project changes, helping contractors and customers maintain a shared understanding of what is required.

How to structure milestones so they work for your business

Milestones should reflect the actual work and the costs involved, not simply divide the total price into equal payments.

Before accepting a project, make sure each stage has:

• A clear scope: Identify the work and materials included.
• An agreed price: Calculate labour, materials, subcontractor costs and overheads appropriately.
• Completion requirements: Establish what needs to be finished before payment is due.
• A realistic timescale: Avoid stages that are unnecessarily long or difficult to assess.
• A process for changes: Agree how extra work will be priced and approved.

Material costs deserve particular attention. If you need to purchase expensive items before installation, discuss this when agreeing the schedule. The payment structure needs to reflect the practical costs of delivering the project.

Do not assume that every job needs the same number of stages. A short plumbing repair may require a simple arrangement, while a major renovation may need a more detailed schedule.

The objective is to create a payment structure that is understandable, workable and proportionate to the job.

How Fort's milestone payments work

Fort is designed to help tradespeople and homeowners agree payment stages and manage the project through one platform.

The process works as follows:

1. Agree the work and payment stages. The contractor and customer establish the scope of the project, the milestones and the amount attached to each stage.

2. Secure the funds. Funds for the relevant milestone are secured before the stage begins, giving the tradesperson visibility over the agreed payment.

3. Complete the work. The tradesperson carries out the agreed stage and records its completion. Fort allows photographs and supporting information to be uploaded against the milestone.

4. Release payment. Payment is released according to the agreed process when the milestone is completed, subject to the platform's applicable procedures.

What milestone payments cannot solve

Milestone payments reduce payment uncertainty, but they do not guarantee that a job will be profitable or run to schedule.

A contractor can still underprice a project, underestimate material requirements or encounter unexpected problems. Funds secured for a milestone also do not remove the need to finance the labour and materials required to complete it.

The quality of the agreement matters just as much as the payment structure. The scope, completion requirements and process for approving variations should be clear from the beginning.

Tradespeople should continue to maintain accurate accounts, monitor cash flow, check customer requirements and keep their own records of costs and payments.

Spend less time chasing payments and more time doing the work

Running a trade business already involves enough to manage: finding work, pricing jobs, buying materials, coordinating other trades and delivering a quality result.

Payment arrangements should be clear before the work starts, not left until an invoice becomes overdue.

Milestone payments provide a practical way to link money to completed work. By agreeing stages in advance and securing the funds before each stage begins, contractors can gain greater visibility over payments while giving customers a clear understanding of what they are paying for.

Fort is built around that principle. It helps tradespeople find new projects, bring existing customers onto the platform, manage project information and use Fortified milestone payments throughout the job.

If you want clearer payment expectations and a more organised way to manage residential projects, find out more about Fort for Tradespeople or create an account.

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Sources and further reading

• Direct Line for Business: Dealing with late payments as a tradesperson. Survey conducted in February 2023, covering 161 self-employed tradespeople and trades business owners.
• Federation of Master Builders and CIOB: Construction SME pressures and payment findings. State of Trade Survey for the second half of 2025, based on 493 construction SMEs.
• Department for Business and Trade: Late-payment performance and practices. Government-commissioned research published in September 2024.
• Department for Business and Trade: The economic impact of late payments. Government-commissioned research published in July 2025.
• Fort for Tradespeople. Fort's current information on project tools, secured milestone payments and the tradesperson process.

This article provides general business information rather than financial or legal advice. Milestone arrangements should be agreed in writing and tailored to the scope, costs and requirements of each project.