A full order book should create opportunities for a contractor. It can also put pressure on cash when supplier deposits, fuel and wages fall due before project payments arrive. A clear working-capital plan helps your business take on suitable work, protect delivery and maintain confidence with staff and suppliers.
Construction contractor working capital determines whether growth strengthens the business or creates a larger funding gap. Sector demand is useful context, but it does not show how much cash a contractor needs while waiting for certification, payment or retention release.
For boards, investors and contractors, the judgement is clear. Do not treat a tender award, a progress certificate or a sector-growth forecast as cash. Test the contract and the project cash curve before committing labour, materials and equipment.
Growth can conceal a cash-flow problem
Construction revenue arrives after work, evidence and certification. Costs arrive before or during work. That timing difference explains why a contractor can report growing turnover while borrowing more, delaying subcontractors or losing supplier terms.
Where contractors depend on public-sector work or subcontracting arrangements, certification and payment delays can transfer pressure through the supply chain. Review the customer and contract behind each project rather than assuming that a busy sector means dependable cash receipts.
Directors need to assess each contract’s cash demands rather than using sector growth as a proxy for enterprise health. This helps management choose work the business can fund and deliver reliably.
A simple working-capital test
Before accepting a project, build a weekly cash forecast from mobilisation to final retention release. Include labour, material deposits, fuel, plant hire, performance security, advance-payment guarantees, VAT, subcontractor commitments and the employer’s stated payment date.
Then ask one hard question: how much cash must the business carry if the first certificate arrives later than planned? If the answer exceeds available cash plus committed bank facilities, the project needs a revised commercial structure, staged procurement or more capital. Revenue will not solve a funding gap that appears before revenue converts into cash.
Take an illustrative Harare contractor awarded a public works project without a mobilisation advance. Labour, fuel and supplier deposits must be funded before documented progress leads to certification and payment. A delay can widen that funding gap even when the contract appears profitable.
The contractor should not use the contract value as its funding plan. It should price the financing burden, negotiate realistic milestones where procurement rules permit, and ring-fence cash for payroll. In hindsight, many firms would have modelled the certificate-to-cash period instead of assuming that a busy site would fund itself.
Read public-contract terms as a funding document
For public works, review the applicable procurement requirements alongside the contract’s payment provisions. Identify the evidence needed for progress claims, the certification process, deductions, retention and any contractual remedies for late payment.
Do not assume a standard payment period or retention arrangement. Check the bidding documents and final contract for the payment clock, claim requirements, deductions, interest provisions and the process for disputed work. Obtain legal advice on the terms that apply to the proposed project.
The Procurement Regulatory Authority of Zimbabwe, PRAZ, oversees the public procurement framework. Tender opportunities and processes use the PRAZ e-GP and procurement portal. The tender stage is the right time to identify whether the employer requires records such as site measurements, delivery notes, test results, engineer approvals or photographs before it will certify a claim.
Do not assume mobilisation funding
Do not assume an advance will be available. Confirm whether the bidding documents and contract provide for mobilisation funding, what conditions apply and whether security is required.
An agreed advance may still leave early labour, imported inputs, equipment and supplier deposits partly unfunded. Build the cash plan around confirmed terms and test what happens if the advance arrives later than expected.
Consider a contractor whose early procurement, security and site costs exceed the available advance. The contract still needs additional funding or revised commercial arrangements. Reviewing cash timing before accepting the work gives management more room to act.
Certification is not payment
An interim certificate records an assessment of work. It does not mean funds have reached the contractor’s bank account. The distinction affects payroll, supplier relationships and tax planning.
Track the stages between submitting a claim, certification and receipt of cleared funds. These events may occur at different times, and a certified amount should not be treated as cash already available for new commitments.
This is more than an administrative issue. Late payment can force contractors to borrow, halt procurement or postpone subcontractor payments, while the public entity pays interest from public funds. Record the date of certification, contractual due date, payment date and interest position for every claim.
Consider an illustrative Bulawayo civil contractor with a certified claim expected to fund payroll and subcontractors. If payment arrives late, the business may need bridging finance even though its accounts show earned revenue. A clear forecast helps identify that need before it becomes urgent.
The better approach is to maintain a certificate register and a weekly cash report that separates certified amounts from banked cash. The directors should escalate a missed contractual date promptly under the contract’s notice process. They should also avoid committing all certified value to new work until money has actually cleared.
Retention needs a specific board decision
Retention protects the employer against incomplete or defective work, but it also ties up contractor cash. Review how it is held, when release is due and what conditions must be met before relying on it in a funding plan.
Retention protections differ between jurisdictions and contracts. Confirm the applicable position with a qualified adviser rather than assuming that arrangements used in another market apply locally.
For a Zimbabwean project, confirm where retention sits, when it will be released, what defects period applies and what evidence triggers release. These terms can determine whether an attractive project ties up cash for longer than the enterprise can support.
If your turnover is under the level needed to carry retention across several concurrent projects, do not pursue every large contract. Limit the number of retention-heavy jobs or secure funding that matches the release timetable. This is a governance choice, not a lack of ambition.
Build a tender process that protects liquidity
A disciplined bid review gives directors a chance to decline work that looks profitable but requires more cash than the business can safely carry. Use this process before submitting through the PRAZ e-GP and procurement portal.
Map the cash curve
List every weekly inflow and outflow from bid security through defects liability. Put the advance, if any, only on the date and conditions stated in the tender. Put progress payments only after the contract’s evidence, certification and payment period.
Use a downside case as well as the expected case. Test delayed certification, supplier deposits and payroll commitments without incoming project cash. This identifies where management may need to revise procurement, secure funding or negotiate suitable terms.
Price the cost of waiting
Include interest, guarantee charges, supplier-credit costs and the cost of management time spent collecting overdue amounts. A project margin that ignores financing cost can overstate its contribution to the business.
For smaller contractors, supplier terms often matter more than a small pricing adjustment. If a supplier requires cash before delivery but the employer pays after certification, the contractor finances the gap. Discuss credit terms before bid submission, not after the purchase order is urgent.
Make evidence collection part of site operations
Progress payments require contract-required evidence of performance. Site teams should know exactly what the engineer, employer or contract administrator expects before the first claim.
Keep delivery notes, measurements, approvals, test results and photographs in a claim file as work proceeds. The common mistake is to start assembling records when the claim is due. By then, missing signatures or measurements can delay certification and turn a planned cash date into an estimate.
Set board triggers
Agree when management must escalate a cash issue. Triggers may include overdue certificates, reduced payroll cover, retention above an approved level or a material supplier changing terms.
Cash flow forecasting and business advisory should form part of project governance, not an annual finance exercise. A director who sees the gap early has choices. A director who discovers it on payroll day has fewer.
Frequently Asked Questions
Does construction-sector growth mean contractors will be profitable
No. Sector growth does not show a contractor’s payment timing, retention exposure or borrowing costs. Review each contract’s cash requirements and contribution separately.
How should a contractor assess payment terms
Read the bidding documents and final contract, identify what starts the payment clock and confirm the evidence needed for certification. Obtain advice on the applicable procurement requirements and contractual remedies.
Is a mobilisation advance guaranteed
No advance should be assumed until its availability, conditions and timing are confirmed in the relevant documents. Test whether the proposed funding covers early commitments and any delay.
How should a contractor plan for retention
Confirm the release conditions, expected timing and any applicable protection. Include retention in the cash forecast and review its effect across concurrent projects.
M&J Consultants can help you review project cash requirements, strengthen cash-flow forecasting and assess the commercial implications of contract terms. Contact our team to discuss your next construction project and enquire for a tailored quote.
