Cash Flow for Construction Companies in Tanzania: How to Stop Running Out of Money Mid-Project

Construction companies in Tanzania run out of cash because they pay for materials and wages weeks before the client pays them, and because part of every payment is held back as retention. The fix is to plan cash, not just profit: agree an advance and short payment stages, forecast money in and out week by week, keep a reserve of at least one month's site costs, negotiate credit with suppliers, and stop taking on new work when the forecast goes negative. A profitable project can still sink a company if the cash arrives too late.

We have seen good builders with full order books close down because three clients paid late in the same month. It is rarely about skill. It is about timing.

How does cash move on a building project?

Picture a typical private building contract. You mobilise, buy materials and pay workers for three or four weeks. Then you submit a claim, the client or their consultant checks it, and payment arrives a week or two later, minus retention. Meanwhile the next stage has already started.

An example. Real timings depend on the contract and the client.

The lowest point, just before the first payment, is where small companies get into trouble. On public contracts the gap can be longer, since certificates go through several approvals.

What are retention and advance payments?

Retention is a part of each payment, often 5 to 10 percent, that the client keeps until the end of the defects liability period, usually 6 to 12 months after handover. It protects the client if defects appear. For you it means a slice of your profit sits with the client for a year or more.

An advance payment is money paid at the start to help you mobilise, often 10 to 20 percent, recovered from later payments. Larger clients and public bodies usually ask for an advance payment guarantee from a bank or insurer in return.

Know exactly how both work in your contract before you sign. Our construction contract checklist lists the payment clauses to look for.

How do you make a simple cash flow forecast?

You do not need special software. A spreadsheet with weeks across the top and two sections is enough:

1. Money in: advances, stage payments, retention releases, any other income. Put each one in the week you realistically expect it, not the week the contract says.
2. Money out: materials, wages, equipment hire, transport, rent, salaries, loan repayments, taxes.

Subtract out from in each week and keep a running balance. Update it every Monday. If the balance goes negative in week six, you have five weeks to fix it: chase a payment, delay a purchase, agree supplier credit, or slow down a site.

Ten ways to keep cash flowing

1. Ask for an advance. Even 10 percent changes the shape of the project.
2. Use short payment stages. Monthly claims or stage payments tied to clear milestones (foundation, walls, roof) are better than three large payments.
3. Claim on time, every time. A claim submitted a week late is paid a week late. Make the paperwork easy to approve, with photos and measurements.
4. Get supplier credit. Pay cement and steel suppliers reliably and ask for 30 days. A good payment record with a hardware supplier is worth a lot.
5. Buy materials per stage, except where buying early protects you from a known price rise and the client has paid for it.
6. Keep a reserve. Aim for at least one month of site costs and overheads in the bank, untouched.
7. Separate company and personal money. Mixing them hides problems until it is too late.
8. Chase payments politely and early. Call the day after a payment is due, not three weeks later.
9. Do not fund one project with another's advance unless you know exactly when it will be replaced.
10. Watch your mix of clients. If one client is more than half your work, their delays become your crisis.

What should you do when a client pays late?

Start with a call and a written reminder that refers to the contract clause and the certificate. Many delays are just paperwork stuck on someone's desk. If payment is seriously late, the contract may allow interest on late payment or a slowdown or suspension of work after notice. Use these carefully and in writing; stopping a site has costs for you too. For private clients who keep delaying, slow down purchases to match what you have received.

For public contracts, keep copies of every certificate and follow up through the right office. The Public Procurement Regulatory Authority has said NeST is meant to reduce payment delays by tracking contracts online, which should help over time. Our guide to winning construction tenders covers how public payments are structured.

Where can contractors find extra working capital?

Talk to your bank before you need money. A bank that has watched your account for two years will move faster than one meeting you for the first time with an urgent request. If you are building your own property rather than a client's, our guide on financing a house in Tanzania explains the main loan types.

Signs your cash is in trouble

• You are paying suppliers late and hoping they do not notice.
• You are using one client's advance to finish another client's work.
• Wages are paid in parts, or late.
• You do not know how much retention you are owed in total.
• Every new contract feels like rescue money.

Any of these means it is time to stop, build the forecast, and say no to new work until the numbers recover.

How does pricing affect cash flow?

If your price has no proper overheads, contingency or profit, no amount of cash management will save the job. Cash flow problems often start at the quote. See how to price a construction job for the method we use, and how to grow a construction company for how cash fits into the bigger picture.

Frequently asked questions

How much working capital does a small contractor need?

Enough to run your largest project until its second payment arrives, plus your monthly overheads. For many small firms that is two to three months of site costs.

When is retention usually released?

Often half at practical completion and half at the end of the defects liability period, but check your contract. Some hold all of it to the end.

Should I accept a job with no advance?

You can, if the stages are short, the client is reliable, and you have the cash to reach the first payment. Otherwise negotiate an advance or shorter stages.

Is it better to pay workers weekly or monthly?

Most site workers in Tanzania are paid weekly or every two weeks. Build that into your forecast; wages are the cost that can never wait.

Build with a contractor that plans

Vika Construction agrees clear payment stages and reports progress with every claim. See our services or contact us to discuss your project.