Bringing on a subcontractor doesn't just add capacity — it adds a second party to every promise you already made your client. A verbal "can you take the API integration" isn't a contract, and when something goes wrong — late delivery, a confidentiality slip, a dispute over who owns the code — you're the one holding both ends with nothing written down to point to.
Scope: their work, not your whole engagement
A subcontractor agreement shouldn't just point back at your client contract and say "same scope." It needs to name the specific slice of work you're handing off — the deliverable, the format, the deadline — separate from everything else you're still responsible for. If the subcontractor is only building a dashboard while you own the strategy and the client relationship, say that explicitly. Otherwise a delay on their piece reads as a delay on the whole engagement, and disputes about what they were actually supposed to deliver get harder to resolve.
Confidentiality: they see client data too
The moment a subcontractor touches client files, credentials, or internal numbers, your confidentiality obligations to that client extend to them — whether or not you wrote that down. Most consultants assume their own confidentiality clause with the client "covers" the subcontractor by extension. It doesn't. You need a separate confidentiality clause in the subcontractor agreement that binds them directly, because if they leak something, the client's claim is against you first.
Clause:"Subcontractor acknowledges that in the course of this engagement they may access confidential information belonging to Consultant's client, Acme Corp, including financial data, internal documentation, and system credentials. Subcontractor agrees to hold this information in confidence under the same terms as if they were a direct party to Consultant's confidentiality agreement with Acme Corp, and will not use or disclose it for any purpose outside this engagement."
Payment: decoupled from when the client pays you
The single most common subcontractor dispute isn't about the work — it's about timing. If your subcontractor agreement says "paid upon receipt of client payment," you've made your cash flow problem theirs, and a client who pays net-45 turns into a subcontractor who waits 45 days for work they finished on time. Set a payment schedule tied to your own milestones or calendar dates, not the client's payment behavior.
Clause:"Consultant will pay Subcontractor within 15 days of receipt of an approved invoice, regardless of Consultant's payment status with the end client. Payment is not contingent on Consultant receiving payment from any third party."
IP and ownership: work product flows to you, then to the client
Without an explicit assignment clause, a subcontractor can retain rights to what they built — which means you can't actually deliver clean ownership to your client, even though your client contract promises exactly that. This is the gap that surfaces months later, when the client wants to hand the code to an internal team and discovers the person who wrote part of it never signed anything transferring rights.
Clause:"All work product created by Subcontractor under this agreement, including code, designs, and documentation, is a work made for hire and is assigned to Consultant upon creation. Consultant may further assign or license this work product to its client as part of the underlying engagement."
The four clauses, worked together
On a real engagement — say, you're delivering a CRM migration for a client and bringing on a subcontractor to handle data cleanup — the agreement would name the data cleanup scope explicitly, bind the subcontractor to the same confidentiality standard you owe the client, set a 15-day payment term independent of your own invoice cycle with the client, and assign the cleaned datasets and scripts to you as work for hire so you can hand them off cleanly. None of these four clauses is optional once a second person touches client data and client deliverables.
None of this requires a separate legal process — it requires writing down what you'd otherwise leave implied. The free Consulting Retainer Agreement Template already covers scope, confidentiality, payment, and IP for a client relationship — the same structure adapts directly to a subcontractor.