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How to Calculate Tender Pricing and Profit Margins

Learn how to build accurate tender pricing in Sri Lanka, from direct costs and overheads to risk, taxes and profit margins, with a worked hypothetical example.

TenderHub Editorial · · 9 min read

How to Calculate Tender Pricing and Profit Margins

Winning a tender at the wrong price can hurt more than losing it. Price too high and the contract goes to a competitor. Price too low and you may end up delivering a government contract at a loss, with a performance security tied up at the bank and penalties waiting if you fall behind. Good tender pricing sits between these two risks. It covers every real cost, allows for risk, and still leaves a profit margin that is competitive in the market.

This guide explains a practical method for pricing tenders in Sri Lanka. It works for goods supply, works contracts and services. You will learn how to build up costs, add overheads and contingencies, handle taxes as the bidding document requires, choose a sensible margin, and check your final price against the market before you submit.

Note: Pricing rules, tax treatment and price adjustment clauses vary by tender. Always verify the requirements in each tender's bidding documents and get professional tax or accounting advice where needed.

Understanding the Basics of Tender Pricing

Before calculating anything, understand how your price will be judged.

How public tenders are usually evaluated

Under the National Procurement Commission (NPC) Procurement Guidelines, most goods and works contracts are awarded to the lowest evaluated substantially responsive bid. Your bid first has to pass eligibility, qualification and technical compliance checks. Then the evaluated price, after any corrections and adjustments the bidding document allows, is compared. For some consultancy and service contracts, a quality-and-cost based method may be used instead, where price is only part of the score.

That means:

  • Price is often the deciding factor once you are compliant.
  • Arithmetic errors can be corrected by evaluators according to the rules in the bidding document, and you may be bound by the corrected figure.
  • An abnormally low bid may be questioned. Evaluators may ask you to justify it, and an unjustified price can be a risk to your bid.

Price structure in the bidding document

Look at how the procuring entity wants prices presented:

  • Lump sum: one price for the entire scope.
  • Unit rates / Bill of Quantities (BOQ): a rate for each item, multiplied by estimated quantities. Common for works.
  • Schedule of prices: for goods, often per item with delivery and installation separated.
  • Time-based: for services, rates per person-month or per day.

Your costing method must match the format, because that is how your price will be read and compared.

Step 1: Calculate Direct Costs

Direct costs are the costs you can link straight to the contract.

Materials and goods

  • Get written quotations from suppliers, valid for at least your bid validity period where possible.
  • Include freight, handling, storage, insurance and wastage.
  • For imported items, account for customs duties, port and clearing charges, and exchange- rate exposure. The rupee's movement can significantly change landed cost between bid and delivery.

Labour

  • Use realistic productivity rates, not best-case ones.
  • Include statutory costs such as EPF and ETF contributions, plus overtime, travel, accommodation and meals for remote sites.

Equipment and plant

  • For owned equipment, include depreciation, fuel, maintenance and operator cost.
  • For hired equipment, use actual hire rates including mobilisation and demobilisation.

Subcontractors

  • Get firm quotations and check that subcontractors meet any eligibility requirements, such as CIDA grading for specialist works.

Step 2: Add Indirect Costs and Overheads

Indirect costs are easy to forget. They are also where many contractors lose their margin.

Site or project overheads

  • Site office, utilities, security and temporary works
  • Project manager, engineers, supervisors and quality staff
  • Insurance required by the contract (for example contractor's all-risk or third-party cover)
  • Health, safety and environmental measures
  • Testing, samples and as-built documentation

Financing costs

Public contracts often involve:

  • Bid security charges from the bank while your bid is under evaluation
  • Performance security charges for the contract duration
  • Advance payment security, if you take an advance
  • Retention money held back until the defects liability period ends
  • Payment delays, which mean working capital must be financed

Estimate the bank commission on each guarantee and the interest cost of the working capital you will need.

Head office overheads

Allocate a fair share of your company's fixed costs: rent, administration, accounts, IT and the cost of preparing bids, including the ones you lose. Many firms use a percentage of direct costs based on their own historic accounts.

Step 3: Price the Risk

Every contract carries risk. Ignoring it is not the same as being competitive.

| Risk | Typical way to handle it | |---|---| | Material price increases | Supplier quotes with validity; contingency; check price adjustment clause | | Exchange-rate movement | Contingency on imported content; forward cover if available | | Quantity uncertainty | Review BOQ and drawings; raise clarification before bidding | | Weather and site conditions | Site visit; allowance in programme and cost | | Late payment | Financing cost allowance | | Liquidated damages | Realistic programme; float in schedule | | Defects and warranty | Warranty provision based on experience |

Check whether the contract has a price adjustment or price variation formula. If it does, some inflation risk is shared with the client. If it does not, you carry it yourself, and your contingency should reflect that.

Step 4: Handle Taxes Correctly

Tax treatment is a frequent source of errors and disputes.

  • Read exactly how the bidding document asks you to show taxes. Some ask for prices inclusive of all taxes. Others ask for VAT to be shown separately.
  • Make sure your VAT registration status and the applicable rates are current. Sri Lankan tax rates and rules have changed several times in recent years, so confirm the position at the time of bidding with the Inland Revenue Department or your tax adviser.
  • Include other applicable levies on imported goods in your landed cost.

When the bidding document explains how taxes will be treated in the evaluation, follow it precisely.

Step 5: Choose Your Profit Margin

Once costs and risks are covered, decide on the profit margin. There is no single correct figure. The right margin depends on:

  • Competition: How many bidders are likely, and how aggressive are they?
  • Contract size and duration: Larger, longer contracts may justify a lower percentage but a larger absolute profit.
  • Strategic value: A first contract with a new client, or in a new sector, may justify a thinner margin.
  • Your capacity: If you are already busy, a higher margin makes sense. If resources are idle, a lower one may still be worthwhile.
  • Risk level: Higher-risk contracts need higher margins.

Markup versus margin

These two terms are often confused:

  • Markup is profit as a percentage of cost.
  • Margin is profit as a percentage of selling price.

A 20% markup on cost gives a margin of about 16.7% on price. Be clear about which one you are using, especially when several people work on a bid.

Worked Example (Hypothetical)

The figures below are round, hypothetical numbers for illustration only. They do not reflect actual market rates.

A company is pricing the supply and installation of office furniture for a government department.

| Item | Amount (LKR) | |---|---| | Materials and goods (including transport) | 4,000,000 | | Labour for installation | 500,000 | | Subcontracted upholstery | 300,000 | | Total direct cost | 4,800,000 | | Project overheads (supervision, insurance, site) | 240,000 | | Financing (guarantee charges, working capital) | 120,000 | | Head office overhead allocation | 240,000 | | Total cost before risk | 5,400,000 | | Risk contingency (illustrative 3%) | 162,000 | | Total cost including risk | 5,562,000 | | Markup (illustrative 10%) | 556,200 | | Bid price before taxes | 6,118,200 |

The company would then add taxes exactly as the bidding document instructs, and round the figure sensibly. In this example, the profit of 556,200 equals a margin of about 9.1% on the pre- tax price.

Step 6: Check Your Price Against the Market

Before you lock in the number, sanity-check it.

  • Compare with past awards. Award information and bid opening results from previous similar tenders can show you the price range that wins.
  • Attend bid openings. Read-out prices give valuable insight into competitors' pricing.
  • Compare with the engineer's estimate, if one has been disclosed.
  • Review unbalanced rates. In BOQ contracts, very low or very high rates on individual items can attract scrutiny. Keep rates realistic item by item.

Step 7: Final Review Before Submission

  • Reconcile all totals between the summary and the detailed schedules.
  • Check that every BOQ item has a rate, unless the instructions allow otherwise.
  • Make sure amounts in words and figures match, where both are required.
  • Confirm that the bid security amount is based on the correct figure if it is calculated as a percentage.
  • Get a final sign-off from someone who did not prepare the pricing.

Key Takeaways

  • Match your costing structure to the price format in the bidding document.
  • Build costs from firm quotations and realistic productivity rates.
  • Do not forget overheads, financing costs and guarantee charges.
  • Price risk explicitly, and check for a price adjustment clause.
  • Treat taxes exactly as instructed and confirm current rates.
  • Choose a margin that reflects competition, risk and strategy, and be clear about markup versus margin.
  • Benchmark against past awards and bid opening results before you submit.

Frequently Asked Questions

What is a typical profit margin for government tenders in Sri Lanka?

There is no fixed figure. Margins vary widely by sector, contract size, competition and risk. Use your own historic data and market intelligence rather than a rule of thumb.

Can I win by quoting the lowest price possible?

Only if your bid is also compliant and the price is sustainable. A price that does not cover costs can cause losses and delivery problems, and an abnormally low bid may be questioned during evaluation.

What happens if I make an arithmetic error in my bid?

Bidding documents usually set rules for correcting arithmetic errors, for example that unit rates prevail over totals. You may be bound by the corrected price, and refusing to accept the correction may have consequences for your bid security. Check the rules in each document.

Should I include VAT in my tender price?

Follow the bidding document. Some ask for prices inclusive of all taxes. Others ask for VAT to be shown separately. Confirm current rates and your registration status before bidding.

How do I handle exchange-rate risk on imported goods?

Include a contingency for currency movement, keep supplier quotes current, and consider options such as forward contracts through your bank. Check whether the contract allows any price adjustment.

How can I find past award prices?

Procuring entities may publish award notices, and bid opening sessions often reveal read-out prices. Tracking notices and results over time builds useful pricing intelligence.

Conclusion

Tender pricing is part arithmetic and part judgement. Get the arithmetic right with a disciplined cost build-up, and apply your judgement on risk and margin based on real market evidence. Over time, a record of your bids, wins and losses becomes your most valuable pricing tool.

To keep building that market picture, follow the daily tender notices on TenderHub.lk. You can browse tenders by category and province, spot those closing soon, and use tools such as the bid bond calculator as you prepare your next offer.

Related guides

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