What is a final account in construction
The final account is the comprehensive statement of the total price payable under the contract, adjusting the original contract sum for variations, provisional sums, re‑measurement, loss and expense, fluctuation, and any allowed set‑offs. It typically also deals with prolongation, disruption, defects and snagging, liquidated damages, retention and final payment. Disputes arise when the parties do not agree the valuation or the contractual entitlement to those adjustments.
Common causes of final account disputes
- Disagreement over the scope and valuation of variations and change control
- Measurement disputes in re‑measurable contracts and provisional sum adjustments
- Loss and expense claims for prolongation and disruption, including heads of loss and causation
- Extensions of time, concurrent delay and entitlement to or deduction of liquidated damages
- Quality issues, defects, snagging and the cost of rectification or completion by others
- Contra charges and set‑off, including back‑charges for site management, hire and preliminaries
- Payment notice and pay less notice timing and validity under the Housing Grants, Construction and Regeneration Act 1996 (as amended)
- Retention release and final certificate effects under JCT, NEC or bespoke terms
- Final account reconciliation following termination or partial termination
Final account disputes are document‑heavy and fact‑sensitive. Early, targeted advice often prevents positions from hardening and reduces the cost of resolution.
How we can help with construction final account disputes
We provide clear, commercial advice at every stage of the final account process, from strategic guidance before practical completion through to adjudication, mediation, arbitration or court proceedings in the Technology and Construction Court. We act for employers, contractors, specialist subcontractors and consultants across sectors including residential, commercial, industrial, healthcare and education.
- Early case assessment: rapid review of entitlement, notices, quantum and risk
- Contract and legal analysis: JCT and NEC mechanisms, conditions precedent and certification
- Forensic support: working with quantum and delay experts to evidence claims or defend them
- Negotiation and settlement: without prejudice meetings, mediation and structured deal making
- Adjudication: fast‑track, statutory process to secure interim or final determination of payment
- Arbitration and litigation: robust representation where a binding, final outcome is required
- Cost control: practical budgeting, staged fees and proportionate tactics
Routes to resolve a final account dispute
Negotiation and commercial settlement remain the fastest and most economical way to close out a final account. We prepare concise position statements and evidence packs to focus discussion on the real value drivers.
Mediation can unlock entrenched positions. A neutral mediator facilitates a confidential settlement without prejudice to your legal rights. It is often used alongside continuing project work or defects completion.
Adjudication offers a 28‑day, enforceable decision under the 1996 Act and is well‑suited to valuation, pay less notice validity and extensions of time. It can be commenced even after the project has completed and after some payments have been made, subject to jurisdiction and crystallisation.
Arbitration or Technology and Construction Court proceedings may be appropriate for larger disputes or where issues of principle require a final and binding determination. We follow the Pre‑Action Protocol for Construction and Engineering Disputes to narrow issues, test evidence and explore settlement before proceedings.
Why choose us
Stephensons is a national, full‑service law firm with a strong track record in complex commercial and construction disputes. We are accredited with the Law Society’s Lexcel quality mark for excellence in client care and practice management, reflecting our commitment to service, compliance and continuous improvement.
Our litigators are experienced in fast‑moving adjudications and high‑value TCC claims, and we work seamlessly with quantum and delay experts to present compelling evidence. Clients value our straightforward advice, focused strategy and relentless attention to detail.
We are also recognised for our wider dispute resolution and regulatory capability, with a nationally respected criminal and regulatory team available 24/7 for urgent matters affecting your workforce or business reputation. When you instruct Stephensons, you gain the depth of a multi‑disciplinary firm with the agility to act at pace.
Our process and costs
We start with a concise, fixed‑price initial review of your final account position, contract and key supporting documents. You receive a practical action plan covering entitlement, evidence gaps, likely routes to resolution, timescales and budget.
We provide clear, upfront cost estimates and, where appropriate, staged or fixed‑fee options for specific steps such as pre‑action correspondence, adjudication submissions or mediation preparation. Our approach is always proportionate to the sums and issues at stake.
Documents we will need
- Executed contract, appendices and any amendments or Z‑clauses
- Bills of quantities, pricing documents and tender clarifications
- Change control records: instructions, variations, CE registers and quotations
- Programmes, progress records and delay notices
- Loss and expense claims with substantiation and contemporaneous records
- Applications for payment, payment notices, pay less notices and certificates
- Defects lists, snagging schedules and rectification correspondence
- Final account statements, meeting minutes and settlement proposals
For employers, contractors and subcontractors
Employers often need decisive advice on entitlement to deduct liquidated damages, the effect of final certificates and the timing and conditions for retention release. Contractors and subcontractors typically require strategic support to secure payment for variations, preliminaries and prolongation, challenge defective pay less notices, and defend contra charges. We tailor our approach to your role, risk profile and commercial objectives.
Frequently asked questions about final account disputes
What is the difference between an interim and a final account
An interim account values work within a defined period and is subject to later adjustment. The final account is intended to capture the complete contractual entitlement, including all variations, loss and expense, defects and set‑offs, and to determine the final balance payable.
Do i need to serve notices for final account claims
Yes, most contracts require timely notices for variations, extensions of time and loss and expense. Conditions precedent in JCT and NEC contracts can bar recovery if notices are late or incomplete. We can audit your notices and advise on mitigation where deadlines have been missed.
Can i start adjudication after the project has finished
Usually, yes. Adjudication can determine final account valuation, extensions of time and the validity of payment and pay less notices after completion. Jurisdictional and timing issues can be complex; seek advice promptly to manage risk and maximise your prospects.
What if the final certificate has been issued
Under JCT forms, a final certificate can be persuasive but is not always conclusive. Strict time limits apply to challenge it. Under NEC, the assessment and acceptance regime is different but time‑bar and notification provisions are equally important. Early advice is essential.
How long does a final account adjudication take
Standard adjudication runs to a 28‑day decision from the referral, extendable by agreement. Tight timetables require careful preparation. We help assemble the core bundle and evidence swiftly to put your best case forward.
What are the limitation periods
As a general guide, claims in simple contracts must usually be brought within six years, and claims under deeds within twelve years, from the relevant breach or accrual of the cause of action. Specific facts can change the analysis; take advice as soon as a dispute is likely.
What does it cost to resolve a final account dispute
Costs depend on the complexity, quantum, route to resolution and the quality of records. We provide a clear budget and strategy at the outset and keep costs under active review so there are no surprises.
How can i reduce the risk of a final account dispute
Maintain robust records, operate the contract mechanisms for notices and change control, agree contemporaneous valuations where possible, and address issues early..
Contact our construction dispute solicitors
For immediate assistance with final account disputes in construction, call Stephensons on 0161 696 6170. Alternatively, fill in our enquiry form for a callback. We act promptly to protect your position and your cash flow.
