Claims tool
FIDIC notice deadline calculator
A quick calendar helper for claims: awareness date, notice deadline, detailed particulars deadline and reminder dates. It does not replace contract review; Particular Conditions may change the procedure.
Today
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Notice deadline
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Detailed claim deadline
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7-day reminder
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3-day reminder
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Calculation status
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Risk
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Useful reading
Bridge Consult
The calculator uses calendar days and does not account for Particular Conditions, holidays, service of notice rules, deeming provisions or applicable law. Check the contract before submitting a claim.
What this tool does
The tool counts the FIDIC 2017 contractual notice periods from an event date and shows which have already fallen due. It rests on the same periods as Sub-Clause 20.2, but the scope is wider: not just claims, but notices under other clauses, each with its own period and its own consequence for missing it.
Where the inputs come from
- The event date — the one you can evidence from a diary entry, an incoming letter or a minute.
- The notice type — it determines the applicable period; a claim notice and an advance warning run on different rules.
- If the Particular Conditions change the period, adjust the result manually.
How to read the result
An expired period does not always mean lost entitlement: the consequences differ by notice type. Missing the 28 days under Sub-Clause 20.2 generally bars the claim, whereas failing to give advance warning under Sub-Clause 8.4 does not bar it but can affect what is ultimately awarded. So read not just the status colour but which clause it belongs to.
What this tool does not account for
- Does not check the Sub-Clause 1.3 requirements on form, addressee and method of service.
- Does not account for periods modified by the Particular Conditions.
- Does not distinguish one-off from continuing events: continuing circumstances need a series of notices.
- Does not replace a notice register — project control needs a standing log, not a one-off calculation.
Questions
Which FIDIC 2017 notices are missed most often?
Three groups. The claim notice under Sub-Clause 20.2, because of the argument about the awareness date. The notice of unforeseeable physical conditions under Sub-Clause 4.12, because work carries on and the condition physically disappears. And the notice of intention to suspend for non-payment — contractors walk off site without it and convert a sound position into their own breach.
Is a notice still needed if the Engineer already knows?
Yes. The Engineer’s actual knowledge does not substitute for a contractual notice: the period runs from the event, not from whether the matter was discussed at a meeting. That knowledge may help later — it is a factor when challenging a time bar — but it is not a substitute for serving notice in time.