This guide is maintained as a current resource for July 2026 and covers only the laws of England and Wales. Information is for general guidance, not legal advice. Consult a qualified solicitor for advice specific to your situation.
Liquidated damages claims arise in commercial contracts where the parties agree in advance on a fixed sum payable in the event of a specified breach. These clauses are widely used in construction contracts, supply agreements, IT projects, and commercial services to provide certainty over financial exposure if performance obligations are not met. In England and Wales, claims for liquidated damages are subject to statutory limitation rules under the Limitation Act 1980. The applicable limitation period depends on whether the claim is treated as a breach of contract claim and when the cause of action accrues. Understanding these time limits is essential, as failure to act within the limitation period can result in the claim becoming unenforceable in court. What Are Liquidated Damages in Commercial Contracts? Liquidated damages are: A pre-agreed contractual sum payable on breach Designed to reflect a genuine estimate of loss Enforceable provided they are not a penalty They are commonly used in: Construction delay clauses Missed delivery deadlines in supply contracts Service level agreements (SLAs) IT implementation and software projects Courts will generally enforce liquidated damages clauses if they represent a legitimate commercial forecast of loss rather than a punitive measure. Legal Nature of Liquidated Damages Claims A claim for liquidated damages is still fundamentally a: Breach of contract claim This means it is governed by the same limitation rules as other contractual claims, rather than having a separate statutory regime. The relevant legislation is the Limitation Act 1980, particularly: Section 5 (actions founded on simple contract) Standard Limitation Period: Six Years General rule The limitation period for liquidated damages claims is: Six years from the date the cause of action accrues This applies whether the contract is written, oral, or implied, provided it is not executed as a deed. This rule is derived from section 5 of the Limitation Act 1980, which applies to simple contract claims. When Does Time Start Running? Breach-based accrual Time begins when the breach giving rise to liquidated damages occurs. In practice, this depends on the contract structure: 1. Single breach (e.g. delay completion date) Time runs from the contractual deadline Example: missed completion date in construction contract 2. Ongoing delay Time generally runs from each day or period of delay if the clause is continuous Some contracts calculate damages per day/week of delay 3. Milestone-based contracts Time runs from each missed milestone date Each breach may create a separate limitation period Example If a contractor fails to complete by 1 January 2020: Liquidated damages start accruing from that date The limitation period generally expires on 1 January 2026 Accrual in Construction and Commercial Delay Claims Liquidated damages are most commonly seen in construction contracts. Typical features include: Fixed daily or weekly rate for delay Triggered after the agreed completion date Continuing accrual until completion or termination For limitation purposes: Each day of delay may be treated as part of a continuing breach However, the underlying breach is anchored to the failure to complete on time Careful contractual interpretation is required to determine accrual. Continuing Breaches and Limitation Complexity Liquidated damages clauses often involve continuing obligations. Key principles: A continuing breach may generate a rolling loss Limitation does not necessarily restart each day in a new way Courts examine whether the obligation is: A single breach with continuing consequences, or A series of separate breaches
This distinction is critical in long-running commercial disputes. Contractual Certification and Claim Triggers In many commercial contracts, particularly construction agreements: Liquidated damages may only be payable after certification An architect, contract administrator, or employer may issue certificates Limitation issues then depend on: Whether certification is a condition precedent to liability Whether the underlying breach or certification triggers the cause of action If certification is required: Time may run from the point certification should have been issued or was issued incorrectly Deeds and Extended Limitation Periods If the contract is executed as a deed: The limitation period is extended to 12 years This is common in: Large infrastructure contracts High-value construction agreements Long-term commercial arrangements The distinction depends on execution formalities, not contract label. Effect of Acknowledgment or Payment Although less common in liquidated damages disputes, limitation can be affected by: Written acknowledgment of liability Part payment of sums due Under the Limitation Act 1980: A valid acknowledgment restarts the six-year period A part payment may also restart the limitation clock Effect of Expiry of Limitation Period If the limitation period expires: The claim becomes statute-barred The defendant may raise limitation as a complete defence The court will usually refuse to enforce the claim Importantly: The contractual right may still exist in principle But enforcement through litigation is barred Interaction with Other Commercial Claims Liquidated damages claims may overlap with: General damages for breach of contract Claims for loss and expense Claims for delay damages in construction law Set-off and counterclaims Each claim must be assessed separately for limitation purposes. Court Proceedings and Time Limits For limitation purposes: A claim is “brought” when the claim form is issued by the court Not when: A notice of claim is sent A contractual dispute is raised Pre-action protocols are initiated This distinction is particularly important where limitation deadlines are close. Common Commercial Scenarios Construction delay disputes Contractor misses completion date Employer claims daily liquidated damages Limitation runs from breach or each accrual period Supply chain delays Supplier fails to deliver goods on time Contract includes fixed penalty per day late IT implementation failure System go-live delayed beyond agreed date Liquidated damages triggered under SLA Key Risks in Liquidated Damages Claims Common issues include: Misidentifying the breach date triggering damages Confusing continuing delay with multiple breaches Failing to account for certification requirements Overlooking deed-based 12-year limitation periods Delay in issuing proceedings in long-running projects Misinterpreting contractual trigger mechanisms Practical Considerations When assessing limitation in liquidated damages claims: Identify the contractual completion or trigger date Determine whether damages accrue continuously or at fixed points Check whether certification is required Confirm whether the contract is a deed Review any extensions, variations, or agreed delays Establish whether multiple breaches exist within one contract Summary The limitation period for liquidated damages claims in England and Wales is generally six years from the date of breach under the Limitation Act 1980, or twelve years if the contract is executed as a deed. The key issue is identifying when the breach occurred, which may be a single event, a milestone failure, or a continuing delay depending on the contract structure. Liquidated damages clauses are common in commercial and construction contracts, but limitation rules require careful analysis of breach timing, accrual mechanisms, and contractual conditions such as certification. Once the limitation period expires, the claim becomes unenforceable in court.
Liquidated damages claims arise in commercial contracts where the parties agree in advance on a fixed sum payable in the event of a specified breach. These clauses are widely used in construction contracts, supply agreements, IT projects, and commercial services to provide certainty over financial exposure if performance obligations are not met.
In England and Wales, claims for liquidated damages are subject to statutory limitation rules under the Limitation Act 1980. The applicable limitation period depends on whether the claim is treated as a breach of contract claim and when the cause of action accrues. Understanding these time limits is essential, as failure to act within the limitation period can result in the claim becoming unenforceable in court.
What Are Liquidated Damages in Commercial Contracts?
Liquidated damages are:
- A pre-agreed contractual sum payable on breach
- Designed to reflect a genuine estimate of loss
- Enforceable provided they are not a penalty
They are commonly used in:
- Construction delay clauses
- Missed delivery deadlines in supply contracts
- Service level agreements (SLAs)
- IT implementation and software projects
Courts will generally enforce liquidated damages clauses if they represent a legitimate commercial forecast of loss rather than a punitive measure.
Legal Nature of Liquidated Damages Claims
A claim for liquidated damages is still fundamentally a:
- Breach of contract claim
This means it is governed by the same limitation rules as other contractual claims, rather than having a separate statutory regime.
The relevant legislation is the Limitation Act 1980, particularly:
- Section 5 (actions founded on simple contract)
Standard Limitation Period: Six Years
General rule
The limitation period for liquidated damages claims is:
- Six years from the date the cause of action accrues
This applies whether the contract is written, oral, or implied, provided it is not executed as a deed.
This rule is derived from section 5 of the Limitation Act 1980, which applies to simple contract claims.
When Does Time Start Running?
Breach-based accrual
Time begins when the breach giving rise to liquidated damages occurs.
In practice, this depends on the contract structure:
1. Single breach (e.g. delay completion date)
- Time runs from the contractual deadline
- Example: missed completion date in construction contract
2. Ongoing delay
- Time generally runs from each day or period of delay if the clause is continuous
- Some contracts calculate damages per day/week of delay
3. Milestone-based contracts
- Time runs from each missed milestone date
- Each breach may create a separate limitation period
Example
If a contractor fails to complete by 1 January 2020:
- Liquidated damages start accruing from that date
- The limitation period generally expires on 1 January 2026
Accrual in Construction and Commercial Delay Claims
Liquidated damages are most commonly seen in construction contracts.
Typical features include:
- Fixed daily or weekly rate for delay
- Triggered after the agreed completion date
- Continuing accrual until completion or termination
For limitation purposes:
- Each day of delay may be treated as part of a continuing breach
- However, the underlying breach is anchored to the failure to complete on time
Careful contractual interpretation is required to determine accrual.
Continuing Breaches and Limitation Complexity
Liquidated damages clauses often involve continuing obligations.
Key principles:
- A continuing breach may generate a rolling loss
- Limitation does not necessarily restart each day in a new way
- Courts examine whether the obligation is:
- A single breach with continuing consequences, or
- A series of separate breaches
This distinction is critical in long-running commercial disputes.
Contractual Certification and Claim Triggers
In many commercial contracts, particularly construction agreements:
- Liquidated damages may only be payable after certification
- An architect, contract administrator, or employer may issue certificates
Limitation issues then depend on:
- Whether certification is a condition precedent to liability
- Whether the underlying breach or certification triggers the cause of action
If certification is required:
- Time may run from the point certification should have been issued or was issued incorrectly
Deeds and Extended Limitation Periods
If the contract is executed as a deed:
- The limitation period is extended to 12 years
This is common in:
- Large infrastructure contracts
- High-value construction agreements
- Long-term commercial arrangements
The distinction depends on execution formalities, not contract label.
Effect of Acknowledgment or Payment
Although less common in liquidated damages disputes, limitation can be affected by:
- Written acknowledgment of liability
- Part payment of sums due
Under the Limitation Act 1980:
- A valid acknowledgment restarts the six-year period
- A part payment may also restart the limitation clock
Effect of Expiry of Limitation Period
If the limitation period expires:
- The claim becomes statute-barred
- The defendant may raise limitation as a complete defence
- The court will usually refuse to enforce the claim
Importantly:
- The contractual right may still exist in principle
- But enforcement through litigation is barred
Interaction with Other Commercial Claims
Liquidated damages claims may overlap with:
- General damages for breach of contract
- Claims for loss and expense
- Claims for delay damages in construction law
- Set-off and counterclaims
Each claim must be assessed separately for limitation purposes.
Court Proceedings and Time Limits
For limitation purposes:
- A claim is “brought” when the claim form is issued by the court
Not when:
- A notice of claim is sent
- A contractual dispute is raised
- Pre-action protocols are initiated
This distinction is particularly important where limitation deadlines are close.
Common Commercial Scenarios
Construction delay disputes
- Contractor misses completion date
- Employer claims daily liquidated damages
- Limitation runs from breach or each accrual period
Supply chain delays
- Supplier fails to deliver goods on time
- Contract includes fixed penalty per day late
IT implementation failure
- System go-live delayed beyond agreed date
- Liquidated damages triggered under SLA
Key Risks in Liquidated Damages Claims
Common issues include:
- Misidentifying the breach date triggering damages
- Confusing continuing delay with multiple breaches
- Failing to account for certification requirements
- Overlooking deed-based 12-year limitation periods
- Delay in issuing proceedings in long-running projects
- Misinterpreting contractual trigger mechanisms
Practical Considerations
When assessing limitation in liquidated damages claims:
- Identify the contractual completion or trigger date
- Determine whether damages accrue continuously or at fixed points
- Check whether certification is required
- Confirm whether the contract is a deed
- Review any extensions, variations, or agreed delays
- Establish whether multiple breaches exist within one contract
Key Takeaways
The limitation period for liquidated damages claims in England and Wales is generally six years from the date of breach under the Limitation Act 1980, or twelve years if the contract is executed as a deed. The key issue is identifying when the breach occurred, which may be a single event, a milestone failure, or a continuing delay depending on the contract structure.
Liquidated damages clauses are common in commercial and construction contracts, but limitation rules require careful analysis of breach timing, accrual mechanisms, and contractual conditions such as certification. Once the limitation period expires, the claim becomes unenforceable in court.
