The Back-To-Back Clause: What It Means and How to Negotiate It (2026)

What is a back-to-back clause? A back-to-back clause makes the terms of a subcontract match the terms of the main contract above it, so that the obligations and risks the main contractor owes to the client are passed down to the subcontractor. The idea is that the main contractor should not be left owing the client something it cannot recover from the subcontractor who actually did that part of the work. It is common in construction, infrastructure, IT delivery and any chain where a main contractor subcontracts parts of a larger job. In plain terms, a back-to-back clause says to the subcontractor: you take on, towards me, the same duties I owe to the client for your part of the work. That can cover the scope, the programme and deadlines, the quality standards, the payment timing, the liability and indemnity position, and the dispute-resolution route. Done well, it keeps the chain consistent and avoids a gap where the main contractor carries a risk no one below it shares. Done badly, it dumps terms on a subcontractor that it never saw and cannot realistically meet. This article is general guidance, not legal advice. ## What "back-to-back" can mean in practice There are two common ways to draft it, and they are not the same: - Full incorporation by reference. The subcontract says the main contract terms apply "as if set out in full", with names changed. This is broad but dangerous for the subcontractor, who may be bound by terms it has not read.

• Selective back-to-back. The subcontract flows down only named obligations, for example the programme, quality standards and specific pass-through risks, and keeps its own payment and liability terms. This is clearer and usually fairer. A major pitfall is the payment side. If payment is passed down back-to-back, the subcontractor may be paid only when and if the main contractor is paid by the client, which is a pay-when-paid or pay-if-paid arrangement. Those are restricted or banned in some places, so handle payment carefully and separately. ## Sample back-to-back clause ``` BACK-TO-BACK WITH THE MAIN CONTRACT 1. The Subcontractor has been given a copy of the Main Contract between the Contractor and the [Client] (commercial terms may be redacted) and acknowledges its terms so far as they relate to the Subcontract Works. 2. In performing the Subcontract Works, the Subcontractor owes the Contractor the same obligations, and assumes the same risks, that the Contractor owes the Client under the Main Contract in respect of those Works, including as to [scope], [programme and completion dates], [quality and testing standards] and [the pass-through risks listed in Schedule []]. 3. Where the Main Contract entitles the Contractor to relief (such as an extension of time or additional payment) for a matter affecting the Subcontract Works, the Subcontractor is entitled to equivalent relief from the Contractor, but only to the extent the Contractor actually obtains it from the Client for that matter. 4. Payment under this Subcontract is governed by clause [] and is not conditional on the Contractor being paid by the Client, except as permitted by applicable law. 5. If there is a conflict between this Subcontract and the incorporated Main Contract terms, this Subcontract prevails.

- **Flow down duties and relief together.** If you pass down the obligations, also pass down the matching rights, such as extensions of time and variation payments. A one-way flow-down is unfair.
- **Handle payment on its own.** Keep payment terms explicit and lawful, and do not bury a pay-when-paid arrangement inside a general back-to-back clause.
- **Name the risks.** Prefer listing the specific risks you are flowing down to a blanket "all terms apply".
- **Add a conflict rule.** Say which document wins if the subcontract and the incorporated terms clash. ## Both-side negotiation points **If you are the main contractor, push for:**
- A genuine flow-down of the obligations and risks you owe the client for the subcontractor's scope.
- Alignment of programme dates and quality standards with the main contract, so no gap opens up.
- The subcontractor's acknowledgement that it has seen the relevant main-contract terms. **If you are the subcontractor, protect:**
- Sight of the actual main-contract terms before you sign, not a blind "as if set out in full".
- Matching rights for every obligation passed down, especially extensions of time and extra payment.
- Payment terms that do not make you wait for, or depend on, the client paying the main contractor, unless local law allows it and you accept it.
- A cap on liability that reflects your fee, not the whole project, so you are not exposed far beyond your scope. ## The payment trap: pay-when-paid The most common problem with back-to-back drafting is payment. A clause that says the subcontractor is paid only when the main contractor is paid, or only if it is paid, shifts the client's non-payment risk onto the subcontractor. These pay-when-paid and pay-if-paid terms are restricted or void in some jurisdictions and enforceable in others, so always check local law and keep the payment clause separate and clear. Never let it ride in on a general "back-to-back" reference. ## A note on jurisdiction Back-to-back drafting is used worldwide, but how far terms can validly be flowed down varies by jurisdiction, especially on payment. In the United Kingdom, the Housing Grants, Construction and Regeneration Act 1996 makes most pay-when-paid clauses in construction contracts ineffective, except where the party above is insolvent, so a back-to-back payment term that relies on being paid first will usually fail there. In the United States the position depends on the state: many enforce pay-if-paid clauses with clear wording, while several, such as California, New York and Virginia, restrict or prohibit them. In India these terms are generally treated as matters of contract under the Indian Contract Act, 1872, though timely-payment concerns for subcontractors are a live policy issue. Because the rules differ so much, this varies by jurisdiction. Last verified October 2026. ## One workspace for drafting and tracking a contract chain The clause is only the start. The real work is keeping the subcontract aligned with a main contract that itself changes, matching dates and standards up and down the chain, and making sure every obligation you flowed down carries the right it needs. Drafting a back-to-back subcontract, reviewing where a main-contract term maps across and where a gap remains, and tracking dates up and down the chain can all sit in one AI workspace tuned to how your company contracts. [Adira](https://adiralaw.com) is one such workspace for back-to-back terms and the two contracts they link. This guide alone is enough to draft and negotiate a fair back-to-back clause.