Quick answer
The official rate used by a procuring entity to convert bids expressed in different currencies into a single evaluation currency, fixed at a specific date stated in the solicitation documents.
Exchange rate, in the context of bid evaluation, is the specific rate at which the procuring entity converts bids submitted in one or more foreign currencies into a common evaluation currency, fixed at a date published in the solicitation documents so that all competing bids are compared on identical financial terms.
What is Exchange Rate (Bid Evaluation)?
When an icb or similar international tender allows bidding in multiple currencies, the employer cannot directly compare bids expressed in different units without first converting them to a common denominator. To prevent the evaluation outcome from depending on which day an evaluator runs the conversion, the solicitation documents specify both the evaluation currency and the source and date of the exchange rate to be used. Common references are the central bank selling rate, the IMF rate, or an authoritative commercial source, all fixed as of a stated date such as 28 days before bid closing. Every evaluator uses the same rate for every bid, producing a level comparison.
The evaluated price used for comparison is then the converted equivalent of each bid. If one bidder submits in US dollars and another in euros, both are converted to the evaluation currency at the fixed rate. The actual currency-of-payment under the resulting contract may differ from the evaluation currency, and the exchange rates used during execution depend on the payment provisions in the contract, not on the evaluation-stage rate.
Why Exchange Rate matters for bidders
The fixed evaluation exchange rate is a snapshot, not a forecast. If you are bidding in a currency that has been depreciating and you expect further weakening, the evaluation rate may overstate your price in the evaluation currency relative to what you will actually spend. Conversely, a strengthening bid currency makes your evaluated price look cheaper than your real cost. Model your bid price in the currency that matches your cost exposure, not in whichever currency produces the lowest evaluated figure, because the evaluation currency advantage disappears at payment stage if the exchange rate has moved. Monitoring the gap between the fixed evaluation rate and current spot rates tells you whether your price remains competitive as bid closing approaches.
FAQ
Can a bidder choose which exchange rate applies to its bid?
No. The exchange rate source and date are fixed by the employer in the solicitation documents and apply equally to all bidders; individual bidders cannot substitute a different rate.
Does the evaluation exchange rate apply to contract payments?
No. The evaluation rate is used only for comparing bid prices. Contract payments use the rate and mechanism specified in the contract conditions, which is a separate provision.
What if the official rate source is unavailable on the reference date?
The solicitation documents or the instructions to bidders typically specify a fallback, such as the rate from the nearest preceding business day or an alternative authoritative source.
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Related terms
Currency of Bid
The currency or currencies in which a bidder is required to express its price in a tender submission, as specified in the instructions to bidders in the solicitation documents.
ViewCurrency of Payment
The currency or currencies in which the employer will actually pay the contractor under the contract, which may differ from the currency used to express the bid price.
ViewPrice Adjustment Formula
A contractual formula that adjusts payments to a contractor over time to reflect changes in labour, material, and equipment costs, protecting both parties from inflation risk on long contracts.
ViewInternational Competitive Bidding (ICB)
The open, internationally advertised procurement method that multilateral development banks use for their largest contracts to attract qualified bidders worldwide.
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