If you run a small business, Grammarly is probably already on one of your devices. It sits in your browser, your email, and your phone keyboard, quietly fixing typos before they reach a customer. Most people use the free version and never think about it again.

But Grammarly also sells a paid Business plan at about $15 per user per month. The pitch is bigger: a shared style guide, an AI writing assistant, and tone controls for your whole team. We ran a small team on it for a month to see what the upgrade actually buys you.

Short answer: it is a solid tool with a narrow job. Whether $15 a head is worth it depends on how much your team writes and how picky you are about a consistent voice. Here is the honest breakdown.

What Grammarly Business actually does

Grammarly checks your writing as you type. The free tier catches spelling, grammar, and basic punctuation. The paid tiers add tone suggestions, clarity rewrites, and a generative AI assistant that drafts and rewrites text on command. It works inside Gmail, Outlook, Google Docs, LinkedIn, Slack, and most web text boxes.

The Business plan adds team features on top of that. The two that matter most are a shared style guide (you set rules like "never use exclamation points" or "always write US dollars as $") and a brand tone profile that nudges everyone toward the same voice. There is also an admin dashboard showing who is using it and how much.

Grammarly pricing in 2026

Here are the three tiers, billed annually. Prices change, so check the site before you buy.

  • Free: spelling, grammar, and basic punctuation. $0.
  • Premium: tone, clarity rewrites, and the AI assistant for one person. About $12 per month.
  • Business: everything in Premium plus the shared style guide, brand tones, and admin dashboard. About $15 per user per month, and you need at least three seats.

Month-to-month pricing runs higher, closer to $25 per user for Business. So a three-person team on the annual plan pays roughly $540 a year. That is real money for a tool that, at its core, fixes commas.

What Grammarly gets right

The catch rate is the main reason to pay. Grammarly flags the small mistakes a busy owner misses at 6pm: a missing word, a wrong "its," a sentence that runs too long. Over a month, it caught dozens of errors in our outgoing emails that spell-check alone would have let through.

The shared style guide is the feature that justifies the Business tier. If three people answer customer emails, the style guide keeps them from sounding like three different companies. You set the rules once, and Grammarly enforces them quietly. For a team that cares about a consistent voice, that is genuinely useful.

  • Works almost everywhere you already type, so there is nothing new to learn.
  • The tone detector is fair. It tells you when an email reads as cold or pushy before you hit send.
  • The AI assistant is fine for quick rewrites: shorten this, make it warmer, fix the structure.

Where it falls short

The AI writing assistant is the weak spot. It is competent but plain. Ask it to draft a newsletter and you get something safe and a little generic, the kind of copy that reads fine and sells nothing. For real drafting work, a dedicated writing tool or a general AI chat does a better job.

Grammarly also over-suggests. It will flag perfectly good sentences and push you toward shorter, blander phrasing. If you accept every suggestion, your writing loses its personality. You have to learn to ignore about a third of what it says, which takes a few weeks of use.

And privacy deserves a flag. Grammarly reads everything you type into it, by design. For most marketing copy that is fine. For sensitive legal or financial drafts, you may not want a third-party tool scanning the text. The Business plan does offer tighter data controls, but read the terms before you turn it loose on confidential work.

Free vs Premium vs Business: which tier fits you

Most solo owners do not need to pay. The free tier handles 80 percent of the value, catching the typos that make you look careless. Upgrade only if you hit a clear need above that line.

  • Stay on Free if you mostly need clean spelling and grammar in emails.
  • Go Premium ($12/month) if you write a lot solo and want tone help and rewrites.
  • Go Business ($15/user) only if three or more people write for customers and a consistent voice matters.

Skip it if you are this kind of business

Skip Grammarly Business if you are a one- or two-person shop. The team features are the whole reason to pay the Business rate, and you cannot use them with fewer than three seats. A solo owner gets nearly everything from Premium, or even Free.

Skip it too if you barely write. If your customer contact is mostly phone calls and a handful of texts a week, paying $180 a year per person to fix the occasional typo makes no sense. And skip it if you need a tool to write long content from scratch. Grammarly polishes; it does not really create.

How it compares to just using ChatGPT

A fair question: why not paste your draft into ChatGPT and ask it to fix the grammar for free? You can, and for one-off cleanups it works well. ChatGPT will rewrite an email better than Grammarly's assistant does. The catch is friction. You have to copy text out, prompt it, and paste the result back, every time.

Grammarly wins on being always-on. It fixes the email you are already writing, in the box you are already in, without breaking your flow. Skip ChatGPT as your grammar tool if you want corrections to happen automatically as you type; reach for it when you need a real draft or a heavier rewrite. Many owners end up using both: Grammarly for live cleanup, a chat tool for drafting.

The bottom line

Grammarly Business is worth $15 a person if you have a team of three or more who write to customers every day and you want them to sound like one company. The shared style guide is the feature you are really paying for, and it earns its keep for the right team.

For everyone else, the free tier is one of the better deals in software. Try Free for a month, see how often it saves you, and upgrade only when you hit a wall you can name. Do not pay for team features you do not have a team to use.