How to write a payment schedule for large trade jobs

Introduction

Writing a payment schedule for large trade jobs like loft conversions, extensions, or full rewires requires careful planning. It is essential for protecting your cashflow and ensuring smooth project execution. Here’s how to effectively structure a payment schedule that suits your and your client’s needs.

Why Payment Schedules Matter

A well-crafted payment schedule ensures steady cashflow. Long-term projects can strain financial resources, especially if unexpected costs arise. By setting clear payment terms, you minimise financial risk and ensure you have the funds necessary to progress without disruption. For instance, if you are working on a six-month extension project, having a payment schedule can help cover expenses like labour and materials while keeping your business financially stable.

Structuring a Payment Schedule

A structured payment schedule typically involves an initial deposit, stage payments, and a final payment upon completion.

• Deposit: Collecting a deposit between 10% and 25% of the total project cost before starting helps cover initial expenses like materials. This percentage varies depending on the project scope and the upfront costs you anticipate.
• Stage payments: With milestones as benchmarks, these payments are spaced throughout the project’s duration. This keeps the client engaged and reassured about where their money is going, and it ensures that you are compensated for ongoing work.
• Final payment: Paid once the project is completed to the client's satisfaction. It's wise to ensure everything is signed off before this final sum is requested.

Example Milestones

Milestones ensure both parties agree on project progression points. Example milestones include:

• First fix completion: For electricians, this means basic wiring. For builders, it includes structural elements. Successfully reaching this stage shows significant project progress.
• Second fix completion: All visible elements like socket faces for electricians and doors for builders. Clients often feel the project is coming together at this point.
• Plastering done: Internal walls are complete to a professional standard, giving the project a finished feel.
• Tiling complete: All tiling areas specified in the scope of work are fully tiled and grouted. This milestone is often satisfying for clients, as it visibly enhances the space.
• Project sign-off: Final review and acceptance of work by the client. Any snagging issues should be addressed before this point.

Writing Clear Milestone Definitions

Clear definitions prevent disputes. Specify exactly what each completed stage looks like. Include details such as “All wires installed and terminated” for electrical work or “All walls plastered to a smooth finish, ready for painting” for plastering work. This clarity not only reduces misunderstandings but also helps maintain a positive working relationship with the client.

Examples of Detailed Milestone Descriptions

To provide even more clarity, consider expanding your milestone descriptions:

• Electrical first fix: All cables run to designated points, circuits are identified and left safe, and all necessary connections are ready for inspection.
• Plumbing installation: All pipework is installed and pressure-tested, ensuring no leaks or faults in the system.
• Structural completion: All beams, supports, and frameworks are installed and certified by an engineer, ensuring compliance with safety standards.

When to Issue Invoices

Link invoices to completion events rather than calendar dates. This approach ensures payment relates directly to work completed, reducing client disputes over unmet deadlines. If a project stalls for any reason, invoicing based on completion stages rather than dates helps avoid complications. For example, invoice for the first fix once it's complete, regardless of whether it’s on schedule or delayed by a week.

Handling Material Costs

For large jobs, decide whether to invoice separately for materials or include them in your stage payments. If separate, this helps clients see the division between labour and material costs. Otherwise, include material costs in your initial deposit and stage payments to integrate costs smoothly. For instance, if roofing materials are particularly costly, you might invoice for these separately to ensure transparency and maintain trust.

Advantages of Separate Material Invoicing

• Transparency: Clients appreciate seeing exactly where their money is going.
• Flexibility: Allows adjustments if material costs fluctuate.
• Budgeting: Clients can plan their finances more accurately.

Retention Clauses

Consider including a 5% retention clause, allowing you to hold back a percentage of payments during a defect liability period. This ensures any defects can be rectified without impacting the final payment. Evaluate the pros and cons based on the project's nature.

Pros:

• Encourages prompt correction of minor defects. You have a financial incentive to resolve issues swiftly.
• Satisfies client concerns over quality. Clients feel reassured that their investment is protected.

Cons:

• May delay total payment receipt. This can affect your cashflow if not managed properly.
• Can complicate final payment procedures, requiring additional administrative work to release retained funds.

Managing Late Stage Payments

If a client delays payment, remind them promptly. Use reminders sent via email or post detailing your terms and applying any contractual late payment charges. Persistent non-payment may necessitate legal action. In the UK, you can charge interest on late payments under the Late Payment of Commercial Debts (Interest) Act 1998. This is currently at 8% plus the Bank of England base rate for business-to-business transactions.

Steps to Take for Late Payments

• Send a polite reminder immediately after the payment is overdue.
• Follow up with a more formal letter after a week, outlining potential interest charges.
• Seek legal advice if payments remain outstanding, considering small claims court for amounts under £10,000.

Statutory Right to Interim Payments

For construction contracts over £5,000, statutory rights to interim payments may apply under the HGCRA 1996. These rights ensure you can request periodic payments based on work progress, protecting your liquidity. This legislation gives contractors the confidence to take on larger projects without the fear of cashflow issues causing delays or financial strain.

Understanding the HGCRA 1996

The Housing Grants, Construction and Regeneration Act 1996 mandates that construction contracts include provisions for interim payments. This applies to work involving construction operations as defined by the Act. By incorporating interim payments, contractors can secure portions of the contract value as work progresses, reducing financial exposure.

Including a Payment Schedule in Your Contract

Include clear clauses in your contract to outline payment expectations. Here’s a simple template:

• Payment terms: “Invoices must be paid within X days of issue, based on completion of defined milestones.” This ensures timely payments and maintains project momentum.
• Deposit details: “A deposit of X% is required before project commencement.” This upfront payment is crucial for initial expenses and demonstrates client commitment.

For more on tooling and contracts, visit our invoice generator tool and our blog on retentions.

Further details on statutory rights can be found in the gov.uk construction contracts guidance.

FAQs

1. How much should I charge for the initial deposit?

   A deposit typically ranges from 10% to 25% of the total project cost, depending on project size and initial material requirement. For example, a loft conversion might require a higher deposit due to specialised materials.

2. What should I do if a client disputes a payment milestone?

   Refer them to the milestone definitions in your contract. Clear documentation of works done helps resolve disputes. Photographic evidence and site inspections can also be beneficial in these situations.

3. How do I calculate stage payments?

   Divide the remaining project balance after the deposit into equal sums tied to key project milestones. Adjust these sums based on the estimated cost of each project phase.

4. Should I offer retention on smaller projects?

   While less common, you may offer it as a client reassurance measure, though it might complicate smaller projects unnecessarily. Consider the client’s preference and the project’s complexity before deciding.

5. What if the client requests changes mid-project?

   Discuss the impact on timelines and costs immediately. Adjust the payment schedule to reflect any agreed changes, ensuring both parties sign off on the new terms.