
Why retention money can become a problem
Retention is a standard clause in most construction contracts, held back to guarantee the quality of the finished work. In practice the amount is often released months after practical completion, which means it sits on the balance sheet while the project moves on. Without a clear record, the due date can slip, invoices may be missed and the contractor can be left waiting for funds that are technically owed.
When retention is forgotten, the impact is felt across the whole supply chain. Sub‑contractors may struggle to meet their own obligations, cash‑flow forecasts become unreliable and disputes can arise over whether the work meets the release criteria. The longer the money remains unreleased, the more likely interest, legal costs or strained relationships will develop, adding unnecessary pressure to the project.
Who needs to watch retention closely
The primary parties that must monitor retention are the main contractor, any sub‑contractors and the client or employer. Each has a contractual right to hold or receive the sum, but the responsibility for tracking dates and conditions often falls to the party that holds the money. Project managers, site accountants and contract administrators all share the duty to ensure the retention is released on time.
In addition, suppliers who have linked payment terms to retention release may be indirectly affected. Even consultants who advise on the release criteria need to be aware of the schedule, because their sign‑off can trigger the final payment. Understanding who is responsible at each stage helps to allocate the right checks and avoid gaps in the process.
Where JobEng helps
Never forget retention money again. JobEng is an app for UK engineering and construction, on iPhone and Android with the same account on the web. Firms use it to hire engineers and run the business side of their projects.
First steps to set up a retention register
Start by creating a simple register that captures the essential details of every retention clause. Record the contract name, the amount held, the percentage or fixed sum, the date of practical completion, the conditions for release and the agreed release date. Add columns for the status of any inspections, certifications or defect lists that must be cleared before the money can be returned.
Once the register is populated, assign a single person – typically a contract administrator – to own it. They should review the register weekly, flag any upcoming release dates and ensure that all prerequisite documents are being chased. A regular review meeting, even a short fifteen‑minute catch‑up, keeps the information fresh and distributes responsibility across the team.
Simple tools you can use today
A spreadsheet is often sufficient for small to medium projects. Use built‑in date functions to calculate the release window and conditional formatting to highlight items that are due within the next thirty days. For larger firms, a shared cloud‑based document allows the whole project team to view and update the register in real time, reducing the risk of duplicated effort.
Calendar reminders are another low‑tech option. Create a series of alerts linked to the release dates and the intermediate milestones that must be satisfied. Combine these with a checklist of required inspections, test certificates and client sign‑offs, and you have a lightweight system that works without specialised software. The key is consistency – the same tool should be used for every contract to build familiarity and reliability.
Common mistakes and how to avoid them
One frequent error is treating retention as a one‑off line item rather than a living record. When the register is only updated at the start of a project, changes to the scope or revised completion dates are missed, leaving the release schedule inaccurate. Regularly reconciling the register with the latest contract amendments prevents this drift.
Another pitfall is relying on memory or informal notes to track release conditions. Without documented evidence of inspections, test results or client approvals, disputes can arise over whether the work truly meets the release criteria. Keep copies of all relevant certificates attached to the register, either as scanned files or as referenced document numbers, so the evidence is readily available when the release is due.
How to start
- Download JobEng free from the App Store (iPhone) or Google Play (Android).
- Create a business account for your firm — firms can ask about a free month of the full platform.
- Open JobEng and start with: never forget retention money again.
Download JobEng free
The whole platform for your firm, on your phone. On iPhone and Android, with the same account on the web.
Frequently asked questions
When should I start tracking retention on a new contract?
Add the retention details to your register as soon as the contract is signed, before any work begins, so the dates are captured from day one.
What information is essential in a retention register?
Contract name, amount held, percentage or fixed sum, practical completion date, release conditions, agreed release date and current status of any required inspections.
How often should the retention register be reviewed?
A weekly review is advisable, with a brief status meeting to confirm that any upcoming release dates are on track.
Can a simple spreadsheet handle multiple projects?
Yes, provided you use separate tabs or a clear identifier for each contract and maintain consistent columns across all entries.
JobEng is free to download on iPhone and Android. Firms can ask about a free month of the full platform.
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