How to Price Your Tender Competitively

The Winner's Curse

There is a well-documented phenomenon in competitive bidding called the 'Winner's Curse'. In any auction or tender process with several bidders, the winner is statistically likely to be the one who most overestimated the value of the contract, or most underestimated its true cost. Winning a tender at a loss is worse than losing it outright: losing costs you the time spent preparing the bid, but winning at an unsustainable price binds you legally to deliver a project that can bankrupt your business.

This matters more in South African government procurement than in private sector bidding, because withdrawing from an awarded government contract, or failing to perform on it, can lead to your business being listed on the National Treasury's Register for Tender Defaulters. That listing follows your company (and in some cases its directors) for years and blocks you from bidding on any future organ-of-state tender. A single badly priced bid can therefore cost you far more than the contract itself.

Building Your Price From the Ground Up

The most reliable way to arrive at a defensible tender price is to build it up layer by layer, rather than guessing a number and working backwards. Start with direct costs: materials, labour, equipment hire, fuel, and subcontractor fees that are tied specifically to delivering this contract. If the project did not exist, you would not incur these costs, so they must be calculated as precisely as your supplier quotes and labour rates allow. Underestimating direct costs is the single biggest cause of tender losses turning into real financial losses once the contract is awarded.

Next, add overheads — the costs your business carries regardless of whether this specific contract is won: rent, electricity, insurance, administrative salaries, accounting fees, and vehicle costs not tied to a single job. Because these costs exist whether or not you win this tender, you allocate only a proportional share to this bid, typically based on the contract's expected share of your annual revenue or the number of months it will run.

Third, build in a risk contingency. Government contracts often run over multiple months or years, during which fuel prices rise, exchange rates move, materials get delayed, or weather disrupts a construction schedule. A contingency of roughly 5-10% protects your margin from these predictable but unquantifiable disruptions. Skipping this step is common among first-time bidders desperate to win, and it is exactly what turns a winning bid into the Winner's Curse.

Finally, add your profit margin — your reward for taking on the risk and doing the work. For service contracts, a margin in the region of 10-20% is standard depending on complexity and risk; for pure supply contracts with lower risk and higher volume, 5-10% is more typical. There is no single correct number, but the margin should always be a conscious decision, not an afterthought.

Cost-Plus vs. Market-Based Pricing

Most South African SMEs default to Cost-Plus pricing: calculate your total cost, then add a fixed percentage. If your cost is R100 and you want R20 profit, you charge R120. This method is safe and easy to defend if an evaluator questions your numbers, but it can leave money on the table if the market would have tolerated a higher price, and it can also price you out of a tender if your internal costs are simply higher than a more efficient competitor's.

Market-Based pricing works the other way around: you research what similar contracts have historically been awarded for, or what competitors typically charge, and price close to that figure regardless of your internal cost-plus number. This can be lucrative when you have genuine market intelligence — for example, from previous tenders in the same category, or from published award notices — but it is risky if your cost structure is not actually competitive at that price point. The safest approach for most bidders is to calculate cost-plus first as a floor price you must never go below, then layer in market intelligence to decide how much room you have to move closer to the market rate without risking a loss.

Common Pricing Mistakes to Avoid

• Forgetting statutory costs: Performance guarantees, insurance, and compliance certifications all cost money and are frequently left out of the direct cost calculation.
• Ignoring payment terms: Government payment cycles can run 30-60 days or longer. If your pricing assumes immediate cash flow, you may need working capital finance you haven't budgeted for.
• Copying last year's price: Input costs change. A price that was competitive twelve months ago may now be a loss-maker if fuel, materials, or wage costs have risen.
• Padding vague line items: Evaluators are trained to spot inflated 'miscellaneous' or 'contingency' lines used to disguise extra profit rather than genuine risk cover.

A Worked Example

Consider a small facilities maintenance company bidding for a one-year municipal building maintenance contract. Direct costs — two technicians' wages, consumables, and a maintenance vehicle's fuel and servicing — come to roughly R840,000 for the year. Overheads, allocated proportionally based on this contract's share of the company's total annual revenue, add another R120,000 for office rent, admin salary share, and insurance. A 7% risk contingency on the combined figure adds roughly R67,000 to cover unexpected price increases or additional call-outs. Adding a 15% profit margin on top of the full cost base brings the total bid price to approximately R1,235,000 for the year. Every one of those four numbers should be traceable back to a real quote, payroll figure, or historical cost record — not an educated guess.

Sector Differences in Profit Expectations

Profit margin norms vary meaningfully by sector, and bidding with the wrong benchmark in mind can either price you out of a tender or leave money on the table. Construction and civil engineering contracts typically carry lower margins in the 8-15% range because of their scale and competition, but also carry higher absolute risk from weather delays, material price volatility, and site conditions, which is why the contingency line matters more here than almost anywhere else. Professional services — consulting, training, and specialised advisory work — can often sustain margins in the 20-30% range because the client is buying expertise and judgement rather than commoditised labour. Supply-only contracts, where you are simply distributing branded or manufactured goods, usually sit at the lower end, often 5-10%, because volume and reliable logistics matter more than differentiation. Knowing where your specific contract sits on this spectrum helps you sanity-check whether your calculated margin is realistic before you submit.

When to Walk Away From a Tender

Not every tender is worth pricing at all. If, after building your cost estimate honestly, you find that the only competitive price is below your calculated floor, the right decision is often to decline to bid rather than submit a price you know is unsustainable. Chasing a contract at an unrealistic price to keep your team busy or build a reference is a common trap, and it usually costs more in the long run — through cash flow strain, reputational damage from poor delivery, or even blacklisting risk — than simply waiting for a better-fitting opportunity. A disciplined pricing process should always leave room for the honest conclusion that this particular tender is not one you should win.

Use the Value Estimator

Our Value Estimator

helps you build your price from the bottom up using this exact structure — direct costs, overheads, contingency, and profit — and reminds you to include commonly forgotten costs like performance guarantees and insurance, so you never submit a price below your real break-even point.