SaaS Agreement vs MSA: The Difference

A SaaS agreement (often called a subscription agreement) grants the customer a right to access hosted software for a recurring fee, and it usually pairs with an order form that sets the plan and price. An MSA (master service agreement) is a master framework governing an ongoing relationship, with the actual work defined in separate statements of work (SOWs). Many pure software deals use a SaaS agreement plus order form, while services heavy deals use an MSA plus SOW.

Last updated July 2026. This is general information, not legal advice. Contract requirements vary by state, by deal, and by situation, so have a qualified attorney review your agreements before you rely on them.

If you sell or buy software, you will run into both of these documents, and people mix them up constantly. Someone forwards you an MSA when you expected a subscription agreement, or a procurement team asks you to sign their MSA for what is really a self serve SaaS purchase. The names sound interchangeable, but they solve different problems. One licenses access to a product. The other sets the rules for a stream of future work. This guide breaks down what each document does, where they overlap, and how to decide which structure fits the deal in front of you.

What is a SaaS agreement?

A SaaS agreement is a contract in which a vendor gives a customer the right to access cloud hosted software over the internet for a subscription fee. It is not a sale of software or a perpetual license. It grants ongoing access for as long as the customer pays, and it sets the terms around uptime, data handling, renewal, and liability.

The defining feature of a SaaS agreement is that nobody hands over a copy of the software. The customer never installs or owns the code; they log in and use it while the subscription is active. Because of that model, a SaaS agreement typically bundles several pieces together: an order form (the plan, seats, term, and price), the terms of service or subscription terms (the legal body), a service level agreement or SLA (uptime commitments), and a data processing addendum or DPA (how personal data is handled). Some vendors present all of this as a single click through agreement for smaller plans, and a signed order form referencing online terms for larger ones. When you need a customer to formally execute the paper, you can sign a SaaS agreement online and keep the signed order form and terms together in one record.

What is a master service agreement (MSA)?

A master service agreement is a framework contract that governs an ongoing relationship between two companies. It sets the general terms once (payment, confidentiality, IP, liability, termination) and then leaves the specific deliverables, timelines, and prices to separate statements of work that reference back to it. Sign the MSA once, then add SOWs as new work comes up.

The reason MSAs exist is efficiency. If a vendor is going to do multiple projects for the same customer over months or years, negotiating a full contract every time is wasteful. The MSA front loads all the boilerplate that rarely changes, so each new engagement only needs a short SOW covering scope and cost. This structure is common in consulting, agencies, staffing, managed services, and any relationship where the work is delivered in phases. The MSA is the durable layer; the SOWs are the disposable, project specific layer. If you run this structure, you can send an MSA for electronic signature and then attach each SOW as its own signed document under the same master.

What is the difference between a SaaS agreement and an MSA?

The core difference is what each document delivers. A SaaS agreement grants access to a specific product for a subscription fee, and the commercial details live in an order form. An MSA does not deliver anything by itself; it is a set of rules waiting for statements of work to define the actual services. SaaS is a product subscription, MSA is a services framework.

In plain terms: with a SaaS agreement, you are buying access to software that already exists. With an MSA, you are setting up the terms under which someone will perform work for you over time. The table below lays the two side by side.

Factor	SaaS agreement	Master service agreement (MSA)
What it delivers	Access to hosted software for a fee	A framework of terms, no work by itself
Paired with	Order form (plan, seats, term, price)	Statement of work (SOW) per project
Best for	Selling or buying a software product	Ongoing services delivered in phases
Pricing model	Recurring subscription, often per seat	Per SOW, hourly, milestone, or fixed fee
Key extras	SLA, DPA, uptime, auto renewal	Confidentiality, IP assignment, indemnity
Typical signer	Click through or signed order form	Signed once, then a signed SOW per job

The line blurs in the real world. A SaaS vendor that also does heavy onboarding, custom integration, or professional services may use both: a SaaS agreement for the software plus an MSA and SOW for the services. That is normal, not a contradiction.

Do you need both a SaaS agreement and an MSA?

Sometimes, yes. If you are only selling or buying access to a software product, a SaaS agreement plus an order form is usually enough. If the deal also includes meaningful professional services (implementation, custom development, ongoing consulting), you may want an MSA plus SOW to govern that work alongside the SaaS agreement covering the product.

A quick way to decide: ask what the customer is actually paying for. If the answer is access to the app, lead with a SaaS agreement. If the answer is people doing work, lead with an MSA and SOW. If it is genuinely both, run them in parallel so the product terms and the services terms do not get tangled. One practical warning for vendors selling to many customers: once you have dozens or hundreds of active agreements, each with its own renewal date, SLA credit, and data commitment, you need a way to track the obligations buried in every active agreement so nothing lapses or gets missed at renewal.

What should a SaaS agreement include?

A SaaS agreement should include the subscription grant and term, the fees and payment terms, service levels, data protection commitments, renewal mechanics, IP ownership, and a limitation of liability. Cover the subscription term, SLA, DPA, auto renewal, fees, IP, and liability, and most disputes are already handled.

The clauses below are the ones that matter most in a SaaS agreement, and the ones buyers should read most carefully.

Clause	Why it matters
Subscription term	Sets the length of access (monthly or annual) and when it starts and ends.
Fees and payment	The price, billing cadence, per seat math, and what happens on late or non payment.
SLA and uptime	The availability commitment (for example a stated uptime target) and any service credits if it is missed.
Data and DPA	How the vendor processes, stores, and secures customer data, often as a separate data processing addendum.
Auto renewal	Whether the term renews automatically (evergreen) and the notice window to cancel before it does.
IP ownership	The vendor keeps the software IP; the customer keeps its own data and content.
Limitation of liability	Caps the vendor's exposure, commonly tied to fees paid, and carves out certain claims.

The auto renewal clause is the one that surprises buyers most. Many SaaS agreements renew automatically unless you give notice within a set window before the term ends, so read that window carefully and set a reminder. On the vendor side, spell it out plainly so a renewal never feels like a trap to the customer.

Can a SaaS agreement be signed electronically?

Yes. A SaaS agreement is a contract between two businesses, so an electronic signature on it is valid and enforceable under the federal ESIGN Act and state UETA laws, with no notary required. Whether the customer clicks to accept online terms or signs an order form, the electronic record holds up.

Electronic signing fits the SaaS sales motion better than paper ever did. A prospect can review the order form and terms, sign from a laptop or phone, and start using the product the same day, with a dated audit trail showing exactly what was agreed. For teams that also run MSAs and SOWs, keeping every subscription agreement, order form, and addendum in one signing workflow means the whole contract stack is executed and stored in the same place. Ready to close faster? You can sign a SaaS agreement online with SignSend on a free plan or the flat 12 dollar per month Pro plan, and get the deal papered without the back and forth.

This guide is general information and not legal advice. SaaS agreement and MSA requirements vary by state, by deal, and by circumstance. Consult a qualified attorney about your specific situation.

SaaS Agreement vs MSA: What's the Difference and Which Do You Need?