You are pricing a writing assistant for a team that edits captions across a client roster, and the plan page quotes a rate per member. The rate is not what decides the bill. What decides it is whether one member can hold several client voices, or whether the product counts a brand voice the way it counts a person. The pricing page answers only the second question.
The seat that assumes one writer, one voice
Per-seat pricing sells one unit: a login tied to one human, carrying that human’s settings, dictionary and tone preferences. The model assumes your problem is headcount. Add a writer, add a seat. That holds inside a marketing department where everyone writes as one company.
An agency editor breaks it. The editor is not writing in their own voice at all. They correct a junior’s caption against one client’s terminology and tone, then open a caption for a different client with a different banned-word list, capitalisation convention and level of formality. The work is enforcement, not authorship, and what is being enforced changes several times a day. So before comparing rates, resolve the structural question: does a brand voice attach to the seat, or to something above it? That decides whether your bill scales with headcount or with client count, two numbers that are rarely close in an agency.
What the plan actually specifies, verified against Grammarly’s own documentation
One naming change first. Grammarly’s support documentation states that Pro replaces the Grammarly Business plan. Business still exists across the help centre, but the plan with a published per-member rate is Pro, and the Teams and Businesses page carries no price; its buttons read “Get Grammarly Pro” and “Contact Sales”. One caveat: grammarly.com/plans served this session a lineup priced in rupees and labelled exclusive to India, and a US variant of the URL returned the same page. The USD figures below come from Grammarly’s support documentation.
| What was checked | What Grammarly publishes |
|---|---|
| Grammarly Pro, monthly | $30 USD per member per month |
| Grammarly Pro, quarterly | $60 USD per member per three months, or $20 per month |
| Grammarly Pro, annual | $144 USD per member per year, stated by Grammarly as a $12 USD average per member per month |
| Flat or tiered | Flat per seat. No volume breakpoints published for Pro. Added seats are prorated against days left in the period. |
| Seat ceiling | Up to 149 seats |
| Seat minimum | [EVIDENCE NEEDED: a Grammarly-published minimum seat count. None appears in the pricing, About Grammarly Pro, or seat management articles.] |
| Billing structure | One payment covering all seats |
| Grammarly Business per-seat rate | Not published. Routes through Contact Sales. |
Annual billing is roughly two and a half times cheaper per seat than monthly, and no caption-editing team will approach 149 seats, so the limits that bite sit elsewhere.
Where the brand-voice question actually gets decided: style guide and tone settings
Grammarly’s documentation is unusually direct here, and the limits sit on the features, not the seats. The Create style rules article states that multiple style rule sets are not included in Pro plans, that Pro members can create one, and that Business members can create up to 50. A rule set is assigned to everyone in the organisation or to specific member groups, never to an individual person.
Two further documented facts close the loop. The Organize team members into groups article states that team members cannot be part of more than one group at a time. The Set brand tones article states that a member group can have only one brand tone profile assigned, that assigning a different profile overrides the previous one, and that Pro members can create one such profile. So one editor sits in one group, one group holds one brand tone, and one seat therefore carries one brand tone. A second seat for the same person is no route around it: the constraint is group membership, not licence count.
Style rules bend a little further. A group can have several rule sets assigned, and Grammarly notes that a group with two gets suggestions from both. That is stacking, not switching: your editor would see client A’s terminology firing on client B’s caption. A per-member toggle for turning rule sets on and off by project does exist, but Grammarly states it is currently available only in Enterprise and Education plans.
The workarounds agencies reach for, and what each one actually costs
- Buy a seat for everyone who touches client copy. Each additional editor is $144 per year annually or $30 per month. Operationally clean, and it solves nothing about brand voice, because every seat inherits whichever group it lands in. You are buying correctness checking at scale, not per-client enforcement.
- Share one login across the team. Grammarly’s terms of service, now published under Superhuman, address this in the credentials clause: “Your Credentials are unique to you and must not be shared with other persons, entities, or end users, except as permitted by these Terms.” The permitted use section separately prohibits allowing others to access or use the services. Read it yourself, because the practical exposure is not a fine. It is no per-person analytics, no clean offboarding, and one credential every departing contractor has seen. See sharing account access without sharing a password.
- Run a separate subscription per client rather than per employee. On the lower tiers this is the only structure giving each client a genuinely separate rule set and brand tone. It multiplies the bill by client count instead of headcount, forces a log out and back in to switch clients, and fragments analytics. For a shop with more clients than editors, the expensive direction.
A worked example: what the seat model costs an agency at a given roster size
Picture a shop where five people touch client captions: two editors, two approvers, and an owner who spot-checks. Everything below uses only the verified rates, so substitute your own headcount. Five seats billed annually is 5 multiplied by $144, or $720 per year. The same five billed monthly is 5 multiplied by $30, or $150 per month, which is $1,800 across twelve months, a gap of $1,080 a year for identical access. Add three freelancers who occasionally touch copy and eight seats is 8 multiplied by $144, or $1,152 per year. Each marginal person costs $144 a year.
Here is the part that reframes the purchase. At $720 or at $1,152, on a Pro plan you have bought exactly one style rule set and one brand tone profile. Your spend scaled with headcount. Your client-voice coverage did not move. If enforcing distinct client voices is why you are buying, the seat arithmetic answers a question you were not asking, and the conversation you need is with sales about Business or Enterprise, where the number comes from a quote.
Questions agencies actually ask before buying
- Can I reassign a seat when someone leaves? Yes, without vendor approval. The Replace members article describes it as removing the departing member and inviting the replacement, managed by admins and designated custom roles. No approval step, no transfer fee.
- Can I add and drop seats mid-term? Yes. Add or remove seats puts it on the Subscription page under Update plan. Additions are prorated and charged in full at renewal. Removals take effect at the next billing cycle, and you must remove members before dropping below your active count.
- Does an admin seat count against the plan? Yes. Grammarly states admins occupy seats because they count as active members, and only members on paid seats can hold the admin role. Budget your ops lead as a seat.
- Is there a volume discount as we grow? None published for Pro. The rate is flat to the 149-seat ceiling.
Before you buy seats
Settle the feature question first and the seat question second. Count the distinct client voices you need enforced, check that against the one-rule-set and one-tone-profile limits, then multiply a rate by a headcount. Two related pieces on this blog: how agencies price out per-client tool costs, and free tier caps on other tools agencies run.
Prices and plan limits here were fetched from Grammarly’s own pages and support documentation on 7 September 2026. This is a blog post. It is not Watchdog data and it is not on the followedapp re-verification schedule, so confirm any figure with the vendor before you sign. followedapp is published by the team behind RecurPost, and RecurPost is covered vendor #34 under the same rules as every other vendor.
FAQ
Does a Grammarly seat support more than one brand voice at a time?
No, on Grammarly’s own documentation. A member cannot belong to more than one group at a time, a group can have only one brand tone profile, and assigning a second overrides the first. Pro members can create one brand tone profile and one style rule set. Business allows up to 50 rule sets, but multiple sets on one group fire all at once rather than letting the editor switch, and the per-member toggle is stated as available only in Enterprise and Education plans.
What is the minimum spend to put an agency team on Grammarly Pro?
Grammarly does not publish a minimum seat count, so the floor cannot be stated as a fixed figure. What can be stated from the rate verified on 7 September 2026 is the arithmetic: $144 per member per year, $60 per quarter, or $30 per month. A four-person editing team on annual billing is 4 multiplied by $144, or $576 per year, and any admin you appoint occupies one of those paid seats.
Sources
- Grammarly Support, How much does Grammarly Pro cost? Per-member rates, 149-seat ceiling, proration, and the statement that Pro replaces the Business plan. Fetched 7 September 2026, HTTP 200.
- Grammarly Support, About Grammarly Pro Single payment for all seats, team functionality up to 149 members. Fetched 7 September 2026, HTTP 200.
- Grammarly Support, Create style rules One rule set on Pro, up to 50 on Business, group-level assignment, stacked suggestions, Enterprise-only per-member toggle. Fetched 7 September 2026, HTTP 200.
- Grammarly Support, Set brand tones One brand tone profile per member group, override behaviour, one-profile limit on Pro. Fetched 7 September 2026, HTTP 200.
- Grammarly Support, Organize team members into groups Members cannot belong to more than one group at a time; style guides and snippets configured per group. Fetched 7 September 2026, HTTP 200.
- Grammarly Support, Add or remove seats Self-serve seat changes, proration on additions, next-cycle effect on removals. Fetched 7 September 2026, HTTP 200.
- Grammarly Support, Replace members Seat reassignment by removing and re-inviting. Fetched 7 September 2026, HTTP 200.
- Grammarly Support, Allocation of seats for admins Admins occupy paid seats and count as active members. Fetched 7 September 2026, HTTP 200.
- Grammarly Terms of Service Account credentials clause on sharing, and permitted use restrictions. Fetched 7 September 2026, HTTP 200.
- Grammarly for Teams and Businesses No published per-seat price; Contact Sales and Get Grammarly Pro routing. Fetched 7 September 2026, HTTP 200.
- Grammarly Prices and Plans Returned a localised India-only lineup on the fetch date with no per-seat business rate. Fetched 7 September 2026, HTTP 200.