Delay Penalty Calculator
Calculate the liquidated damages for delay on your contract, the cap at which they stop, and how many weeks of slippage it takes to reach that ceiling.
Calculator
How the calculation works
Penalty = contract value x the periodic penalty rate x the number of late periods, capped at the ceiling written into the contract. Rates and caps differ from one contract to the next, so read the conditions of contract rather than relying on what is customary.
Frequently asked questions
Can the penalty be lifted for part of the delay?
Yes, where an extension of time is due. That needs written notice served in time, a critical-path impact analysis and supporting records — not an argument made after the fact.
Is the penalty applied to the whole contract value?
It depends on the wording. Some clauses apply it to the full contract value, others only to the value of the delayed portion. That difference belongs in the pre-signature review.
What happens once the cap is reached?
Liquidated damages stop accruing, but reaching the cap often triggers other remedies such as termination rights, so it is a warning line rather than a safe ceiling.
How do I protect the right to an extension of time?
Notify in writing within the period the contract sets, keep dated site records, and show the delay on the critical path. Late notice loses good claims more often than weak facts.
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This calculator is also available in Arabic: حاسبة غرامة التأخير.