How to manage applications for payment and project cash flow

To keep your construction business solvent, you must submit accurate applications for payment on the specific dates agreed in your contract and rigorously track project-specific spending to ensure you aren't "funding the build" with your own cash. Cash flow is the lifeblood of any general contractor; even a profitable project can sink a business if the money doesn't arrive in time to pay subcontractors and material suppliers.

Understanding the Application for Payment

Unlike a standard shop where you buy an item and pay immediately, construction often uses "Applications for Payment." This is a document you send to the client (or their architect/quantity surveyor) detailing the value of the work completed to date, including materials on-site. Once they agree with your assessment, they issue a payment notice, and you then send a formal invoice.

Steps to Manage Your Payment Process

1. Agree on a Valuation Calendar: Before the project starts, agree on a fixed monthly date for applications (e.g., the 25th of each month). Consistency helps the client budget and helps you predict when cash will hit your account.
2. Break Down the Contract Sum: Use your original estimate to create a "Schedule of Values." This breaks the total price into logical chunks (e.g., groundworks, brickwork to DPC, first fix electrics). This makes it much easier to agree on the percentage of work completed each month.
3. Include Variations Immediately: Never wait until the end of a project to bill for changes. If the client asked for extra sockets or a different floor finish, include that "variation" in your monthly application as soon as the work is done.
4. Account for Retentions: In the UK, it is common for clients to hold back 5% of each payment (retention) until the project finishes. Ensure your cash flow forecast accounts for the fact that you won't receive this full amount until the job is signed off.

Managing Project-Specific Cash Flow

It is vital to track each project as its own "mini-business." You should know exactly how much has been spent on labour and materials for a specific site versus how much you have been paid for it.

Month	Projected In (Applications)	Projected Out (Costs)	Project Cash Position
Month 1	£10,000	£8,500	+ £1,500
Month 2	£25,000	£22,000	+ £3,000

Example: Keeping a simple table like this prevents you from using the deposit from a new client to pay for the materials of a finishing client—a common trap that leads to business failure.

Best Practices for Chasing Payments

• The 24-Hour Rule: If a payment is due on Friday and hasn't arrived, call the client on Monday morning. Be polite but firm; assume it's a simple oversight but reiterate that your subcontractors rely on that payment.
• Know Your Rights: Under the Housing Grants, Construction and Regeneration Act 1996, you have a statutory right to be paid on time and to receive interest on late payments. Mentioning "statutory interest" often speeds up a slow finance department.
• The "Stop Work" Clause: Your contract should clearly state that you have the right to suspend work if payments are delayed beyond an agreed period.

Pro Tip: Always take photos of the progress on site on the day you submit your application. If a client disputes how much work has been done, you have time-stamped visual evidence to back up your claim.