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An MSA agreement, or master service agreement, is a contract that sets the general terms two businesses will follow across all their future work together, such as payment, confidentiality, liability and intellectual property. Each project is then added through a shorter statement of work, so the core terms do not need renegotiating every time. MSAs are common wherever one supplier serves the same client repeatedly.
This guide explains what an MSA covers, how it differs from an SOW, SLA and MOU, which clauses matter most, what it costs to prepare, and how to sign and end one.
What is an MSA agreement?
An MSA agreement is the umbrella contract for an ongoing business relationship. Nolo defines it as “a contract that lays out a framework of general terms and conditions between two parties in an ongoing, working relationship.” Individual projects sit underneath it, each described in its own statement of work.
MSA is short for master service agreement, sometimes written master services agreement. A typical example is a software company and a marketing agency signing one MSA, then issuing a new statement of work for each campaign. Thomson Reuters describes an MSA as a contract covering “terms and conditions for current and future activities and responsibilities,” which is why it usually outlasts any single project.
What is the purpose of an MSA?
The purpose of an MSA is to agree the legal and commercial ground rules once, so later projects can start quickly and on consistent terms. That matters because contract gaps are costly: World Commerce & Contracting estimates the average business loses almost 9% of value annually through poor contract management.
In practice, an MSA gives you three benefits:
• Speed: a new project can start with a short statement of work instead of a full new contract.
• Consistency: the same liability limits, IP rules and confidentiality terms apply to every project.
• Clarity: both sides know in advance who carries which risks if something goes wrong.
MSA vs SOW, SLA, MOU and standalone contracts
An MSA sets general terms for the whole relationship. A statement of work (SOW) describes one project’s scope, deliverables, timeline and price. A service level agreement (SLA) sets measurable service standards. A memorandum of understanding (MOU) records intentions and is usually non-binding. A standalone contract puts every term for a single deal into one document.
| Document | What it covers | Usually binding? | How many per client | Hypothetical example |
| MSA | Payment, IP, confidentiality, liability, termination | Yes | Usually 1 | Agency and client agree terms for all future campaigns |
| SOW | One project’s scope, deliverables, timeline and fee | Yes, under the MSA | 1 per project | A 12-week website redesign for a fixed fee |
| SLA | Service levels such as reliability, response times and reporting | Yes, when part of a contract | 1 per service | 99.9% monthly uptime with service credits |
| MOU | Shared intentions before a deal | Usually not | Varies | Two firms agree to explore a partnership |
| Standalone contract | Every term for one deal | Yes | 1 per deal | A one-off consulting engagement |
Definitions draw on Nolo (MSA), ContractSafe (SOW), the NIST glossary (SLA) and law firm Good Pine P.C. (MOU). The examples are hypothetical.
The MOU is the one to handle with care. Good Pine P.C. describes MOUs as “generally understood to be non-binding statements of intent,” but notes a court may enforce one that has definite terms, an offer and acceptance, and consideration. If you do not intend to be bound, say so expressly in the document.
What comes first, MSA or SOW?
The MSA comes first. You negotiate and sign the MSA, then issue an SOW for each project that refers back to it. You can sign an SOW without an MSA, but then the SOW has to contain every legal term itself, which makes it a standalone contract and removes the time saving.
Does an MSA supersede an SOW?
Only if the contract says so. Many MSAs include an order-of-precedence clause stating that the MSA controls unless an SOW expressly overrides a specific term. Without that clause, a court may give more weight to the SOW as the more specific and more recent document, as attorney Aaron Hall explains. Nolo recommends that the parties state which document controls if they conflict.
What should an MSA include?
An MSA should cover the scope of the relationship, payment terms, confidentiality, intellectual property ownership, warranties, indemnification, limitation of liability, term and termination, governing law, and an order-of-precedence clause. Nolo and Thomson Reuters both list IP, confidentiality, payment, termination and governing law among the core MSA terms.
| Clause | What it decides | Common approach to discuss |
| Scope and SOW process | What services are covered and how projects are added | Each SOW references the MSA by name and date |
| Payment terms | When and how invoices are paid | A set number of days after invoice, plus late-payment terms |
| Confidentiality | What each side must keep private | Survives termination for a stated period |
| Intellectual property | Who owns work product and pre-existing materials | Client owns agreed deliverables; supplier keeps its own tools |
| Limitation of liability | The maximum damages either side can claim | In technology and SaaS deals, commonly fees paid in the prior 12 months |
| Indemnification | Who covers third-party claims | Each side covers claims caused by its own conduct or IP |
| Term and termination | How long it lasts and how to exit | Initial term, renewal rules, notice to terminate |
| Governing law | Which jurisdiction’s law applies | One named state or country and a venue for disputes |
| Order of precedence | Which document wins in a conflict | MSA controls unless an SOW expressly overrides |
The liability benchmark comes from KO Law, which describes it as the most common cap in technology and SaaS agreements. The other entries describe typical drafting choices to tailor with your attorney, not legal requirements.
If you start from a master service agreement template, test each row against your actual services. A template written for software may say nothing about on-site staff, insurance or background checks, which matter a great deal in healthcare, construction or real estate work.
International service agreements
Cross-border MSAs need extra attention because fewer default rules apply. The UN Convention on Contracts for the International Sale of Goods (CISG), which has 97 contracting states, excludes sales of services, so a service MSA depends largely on its own governing-law, currency and dispute clauses. If the work involves transferring personal data out of the EU or EEA, the parties may need the European Commission’s Standard Contractual Clauses, adopted on June 4, 2021; data protection counsel can confirm whether they apply.
How much does an MSA agreement cost?
An MSA costs nothing to prepare from a free template, around $490 on average for a flat-fee attorney review, and more for full drafting. ContractsCounsel reported a $490 average review fee across 60 projects (updated February 2026), and an earlier 2024 dataset put average drafting at $820.
| Option | Published price | Best for | Trade-off |
| Free template, self-edited | $0 | Low-value, low-risk services | No legal review; easy to miss industry or state-specific terms |
| LegalZoom Business Attorney Plan | $469 a year or $259 for 6 months; reviews up to 10 pages included, 11 to 15 pages $69, 16 to 25 pages $149 | Small businesses reviewing several contracts a year | Page limits; complex negotiations may need a dedicated attorney |
| Flat-fee attorney review (ContractsCounsel marketplace) | $490 average (Feb. 2026) | Reviewing a client’s or vendor’s MSA before you sign | Review only; drafting costs more |
| Flat-fee attorney drafting (ContractsCounsel marketplace) | $820 average (April 2024) | A custom MSA you will reuse with many clients | Higher upfront cost |
Prices checked September 24, 2026. Marketplace averages vary by project and attorney.
Match the spend to the risk. If a single project could be worth more than your review fee many times over, or the work involves health, financial or personal data, an attorney’s review is usually worth paying for. A carefully adapted template can be reasonable for a small, low-risk engagement.
How to sign, manage and end an MSA
Put the MSA in place in a fixed order: agree the commercial basics, draft the terms, add an order-of-precedence clause, negotiate, sign with authorized signatories, and then issue SOWs. Once signed, track renewal and notice dates, because many MSAs renew automatically and termination rights depend on meeting the contract’s notice requirements.
1. Agree the commercial basics: services, pricing model, payment terms and expected length of the relationship.
2. Draft or adapt the MSA from your attorney’s form or a vetted template.
3. Add an order-of-precedence clause that says which document wins in a conflict.
4. Negotiate and review, involving an attorney for high-value or high-risk terms.
5. Sign with authorized signatories, showing each signer’s name, title and company.
6. Issue an SOW for each project that references the MSA by name and date.
Does an MSA need to be notarized or witnessed?
Usually not. FindLaw notes that business contracts “typically don’t need to be notarized or witnessed” to be binding, although exceptions exist for items such as real estate documents. The federal ESIGN Act also says a contract may not be denied legal effect solely because an electronic signature was used, so most companies sign MSAs electronically. Because contracts that cannot be performed within one year can fall under the statute of frauds, keep multi-year MSAs in writing and signed. For practical tips on signature blocks and authority, see our guide to signing contracts, and for the federal rules, our explainer on the ESIGN Act.
Related documents are a different matter. A corporate resolution, affidavit or power of attorney connected to the deal may need notarization if a lender, government office or the other party requires it.
Can an MSA be terminated?
Yes. An MSA can be ended under its termination clause, typically either for convenience with written notice or for cause, such as a material breach not fixed within a cure period. Before you give notice, check:
• The notice period and method, such as email or mail to a named address.
• What happens to active SOWs: whether they end with the MSA or run to completion.
• Which clauses survive, typically confidentiality, payment of amounts owed, IP ownership, indemnification and limitation of liability.
• Renewal dates, if the MSA renews automatically unless notice is given in time.
Have a question about a contract document that needs a notary? Email us at [email protected] and we will help you work out what is actually required.
Frequently asked questions
Does an MSA need to be signed by both parties?
Yes, in practice. Each party should sign through a person with authority to bind the company, and the signature block should show the signer’s name, title and company. An unsigned MSA invites disputes over whether its terms ever applied.
Can an MSA be signed electronically?
Usually yes. Under the federal ESIGN Act, a contract cannot be denied legal effect solely because an electronic signature was used, so most businesses sign MSAs on an e-signature platform. Check any industry or client requirements that call for a specific signing method.
How long does an MSA last?
As long as the contract says. Many MSAs run for a fixed initial term and then renew automatically unless either side gives notice by a set deadline. Check the term, renewal and notice clauses before you sign, and diary the dates.
Is an MSA the same as a master purchase agreement?
No. An MSA governs ongoing services, while a master purchase or supply agreement governs repeat sales of goods. Goods contracts follow different rules, including the Uniform Commercial Code and, for some cross-border deals, the CISG.
Can I use a free MSA template?
For low-risk work, a template can be a reasonable starting point if you adapt it to your services, industry and governing law. For high-value deals or regulated data, have an attorney review liability, indemnity and IP terms before signing.
What happens to open SOWs when an MSA ends?
It depends on the termination clause. Some MSAs end all active SOWs at the same time, while others let them run to completion under the MSA’s terms. If the contract is silent, get legal advice before assuming either outcome.
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