A board can look at a growing sector, a rising sales forecast and a full order book, then still fund a project that consumes cash every month. The missing discipline usually sits in the gross margin model. Revenue growth matters, but gross margin shows whether each sale leaves enough to pay for stock, operations, tax, debt and future growth.
For Zimbabwean enterprises and investors, the distinction between a promising sector and a bankable project is practical. We test the price a customer will pay, the direct cost of delivering that sale, the cash tied up before collection, and the permissions required before operations begin.
Start with the sector, then test the project
Zimbabwe’s manufacturing, mining, agriculture and retail sectors offer investment opportunities, but sector growth alone does not prove that a particular project can earn a sustainable margin. Investors benefit from testing customer demand, direct costs and working-capital needs before committing capital.
A sector can expand while a specific operator loses margin. A retailer may face imported stock costs, stock losses and rent in United States dollars while competitors hold prices down. A manufacturer may gain volume but give customers 60-day credit and run out of cash before its invoices fall due.
Treat sector data as a starting point for an investment thesis, not as approval for capital expenditure. The feasibility study must answer a narrower question: can this business sell enough units, at a credible price, with a reliable gross margin and a manageable cash cycle?
What gross margin actually measures
Gross margin is revenue less direct cost of sales. Direct cost of sales usually includes the materials, purchased goods, direct conversion cost, freight into stock where relevant, packaging and distribution costs that arise from making or delivering the sale.
It does not mean operating margin, EBITDA margin or cash flow. Salaries for head-office staff, professional fees, finance costs and income tax may sit below gross profit, depending on the business and its accounting policy. You need those costs in the full model, but do not call the result gross margin.
The formula is simple:
Gross margin percentage = gross profit divided by revenue, multiplied by 100.
The judgement sits inside the inputs. Do not adopt a competitor’s reported margin as your own target. Purchasing scale, local production, inventory practices and sales channels can all change the result. A tailored financial model helps management understand its actual earning potential.
Published company results can provide useful comparisons, but even established operators face different raw-material, distribution and operating costs. Strong feasibility work turns those comparisons into questions to investigate, rather than unsupported targets for a new venture.
A new food processor, distributor or retailer should build its own unit economics from supplier quotations, expected wastage, route costs and customer terms. This gives investors clearer evidence for decisions and helps protect capital.
Build the gross margin model in the right order
1. Set a unit selling price that the market can support
Start with the actual product, pack size, customer segment and route to market. Do not begin with the profit figure you want. Record whether each price comes from a signed customer indication, a current shelf observation, a distributor discussion or an internal assumption.
Then decide whether the price is VAT-inclusive or VAT-exclusive. Zimbabwe’s standard VAT rate increased from 15% to 15.5% on 1 January 2026. Mixing VAT-inclusive sales with VAT-exclusive costs can make a weak margin look acceptable on paper.
A trader must register for VAT when taxable supplies exceed, or are expected to exceed, US$25,000 or its ZiG equivalent in a 12-month period. Once registration applies, model the VAT treatment line by line, including any zero-rated or exempt supplies, before you present revenue to an investment committee.
2. Build direct costs from evidence, not percentages
List direct materials or stock by item. For imported goods, separate supplier price, freight, insurance, customs-related costs, inland delivery and foreign-exchange exposure. For manufactured goods, separate material usage, yield loss, direct labour, energy used in conversion and packaging.
Add stock loss, breakages, returns, expiry and obsolete inventory. These costs are easily overlooked in an early model, yet they can erode the profit left from each sale. Tracking them improves pricing decisions and highlights opportunities to protect margins.
Do not use a single cost-of-sales percentage unless you can trace it to a bill of materials or a supplier price list. The percentage is the output of the model, not the evidence for it.
3. Test the contribution by product and customer
A blended gross margin can conceal a product that loses money. Test each major stock keeping unit, contract or customer segment separately, then test the blended result.
A large customer may increase revenue while demanding discounts, returns rights, long credit and free delivery. If that customer produces a lower contribution than the rest of the portfolio, management needs a deliberate reason to retain the account.
Consider a retailer whose sales are growing while supplier costs and stock shrinkage rise. Its headline revenue may look encouraging, but less gross profit remains to meet payroll, rent and other commitments. A product-level margin review can reveal which lines need better supplier terms, tighter stock controls or a different sales mix before the business expands.
The retailer should not respond by assuming more sales will solve the problem. It should test price changes, supplier terms, product mix and shrinkage controls first. The lesson is that volume can amplify a margin error.
4. Separate profit from cash conversion
A project can report a positive gross margin and still fail to fund its working capital. Inventory requires cash before sale. Receivables delay collection after sale. Supplier credit can reduce the gap, but only if suppliers will grant it and the business can meet the terms.
Build a monthly cash flow forecast alongside the profit and loss statement. Include opening inventory, purchases, stock turns, debtor days, creditor days, payroll, rent, tax payments, capital expenditure and debt service where applicable.
Published cash-flow statements from established businesses demonstrate that profit and cash movement are different measures. A business may show healthy trading margins while still needing substantial funding for inventory, equipment and expansion. Investors benefit from reviewing both measures together.
Consider a distributor that offers customers extended credit, carries slow-moving inventory and must pay suppliers before collecting sales proceeds. Even with a positive gross margin, the business can face a funding gap that threatens reliable deliveries and future growth.
Negotiating more suitable supplier terms, improving collections and reducing slow-moving stock can ease that funding gap without relying solely on higher sales. Before committing funds, we would ask for customer credit evidence and supplier terms, not just a projected income statement.
Make compliance part of the investment case
A bankable project includes permissions, tax administration and governance in its timetable and cash forecast. A licence or registration does not replace another regulator’s approval.
Tax registration and fiscalisation
ZIMRA requires taxpayer registration within 30 days after starting business. An employer must register within 14 days of becoming an employer, and businesses must retain accounting records for at least six years.
For a VAT-registered operator, fiscalisation is not an optional systems upgrade. ZIMRA requires VAT-registered businesses to fiscalise sales, and a compliant fiscal invoice supports input-VAT claims. Non-compliance can lead to statutory penalties and other enforcement consequences. Planning fiscalisation early protects reporting accuracy and reduces avoidable disruption.
Finance Act 7 of 2025 also tightened fiscal-invoice validation for input-VAT claims through ZIMRA’s Fiscalisation Data Management System. A feasibility model should therefore include fiscal devices, invoice configuration, staff controls and reconciliation work from the start. The ZIMRA TaRMS Self-Service Portal forms part of the registration and tax-administration process.
The operational mistake we see most often in planning is treating invoicing as an administrative detail after launch. It affects revenue records, VAT recovery and the quality of management information from day one.
Environmental and investment approvals
If a project falls within prescribed activities such as industry, mining, power, irrigation, infrastructure or waste, the Environmental Management Agency requires an environmental and social impact assessment certificate before implementation begins. Do not order equipment or break ground on the assumption that approval will follow.
The EMA certificate remains valid for two years. The holder must apply for renewal six months before expiry. Those dates belong in the project plan because a missed renewal can interrupt a project that otherwise meets its sales targets.
International investors should also assess whether a Zimbabwe Investment and Development Agency general-investment licence suits the project. The application requires Form ZIDA 1, company documents and a shareholder or director list. Confirm current application requirements and prescribed fees directly with ZIDA before filing.
A ZIDA licence does not replace tax clearance, NSSA clearance, a factory licence, sector approvals or an EMA certificate where required. Put each approval owner, cost, dependency and deadline into the implementation schedule before company registration reaches the final stage.
Use a decision-ready feasibility review
A useful feasibility review does not produce one optimistic forecast. It produces a base case, a downside case and clear conditions that management must meet before releasing capital.
For each scenario, test unit price, sales volume, direct materials, conversion costs, distribution costs, stock losses, receivable days, supplier credit, VAT, tax and capital expenditure. Explain how changing demand and margins affect cash availability, resilience and the timing of investment decisions.
If turnover will remain below the VAT registration threshold and the business has no credible near-term path above it, do not build a VAT-registered operating model merely because a larger competitor uses one. If expected taxable supplies will exceed US$25,000 in 12 months, plan for VAT and fiscalisation before trading, because late configuration creates avoidable compliance and margin risk.
We also recommend a pre-launch evidence file. It should hold supplier quotations, customer pricing evidence, lease terms, inventory assumptions, regulatory applications, capital expenditure quotes and a monthly cash forecast. This gives directors and funders a record of the assumptions behind the decision and a basis for monitoring performance after launch.
Business feasibility studies, tax compliance advisory and financial modelling should work as one process. A commercial forecast without tax treatment is incomplete. A compliance plan without a cash forecast can still leave the enterprise underfunded.
Frequently Asked Questions
What is a good gross margin for a Zimbabwean business?
There is no universal good gross margin. A manufacturer, importer, retailer and professional-services firm carry different direct costs and working-capital demands. Use comparable data only as context, then test your own price, stock losses, logistics and customer credit terms.
Does revenue growth prove that a project is bankable?
No. Revenue growth can increase cash pressure when a business must buy more inventory, offer more credit or absorb higher input costs. A bankable project needs credible sales, reliable gross margin, sufficient working capital and the approvals required to operate.
How does VAT affect gross margin?
VAT should not form part of a VAT-exclusive revenue and cost comparison when the operator can account for it correctly. However, the 15.5% standard rate effective from 1 January 2026 affects customer price points, invoices, cash timing and the accuracy of VAT reporting.
When should a project obtain an EMA certificate?
For prescribed projects that require environmental assessment, obtain the EMA certificate before implementation begins. Include the assessment process in the development timetable, then plan for renewal six months before the two-year certificate expires.
A promising sector can justify further diligence. A reliable gross margin, supported by evidence and cash discipline, helps justify capital. M&J Consultants Africa supports feasibility reviews, financial modelling and compliance planning that help investors make informed decisions, protect resources and pursue sustainable growth. Speak with our team about your project and enquire for a tailored quote.