Karbon pricing 2026: Team, Business and Enterprise plans

It's a Tuesday in November at a four-person accounting firm. Extension season just ended, and the partner has an hour before the next client call. She has Karbon's pricing page open because last season ran on a shared inbox, a spreadsheet of who owed which documents, and one senior preparer who spent most of March sending "just checking in" emails. She wants to know what Karbon costs for four people, and whether the cheaper plan does the chasing or only tracks it.

This post covers Karbon pricing for that firm: what each plan costs per user, what it includes, where the page goes quiet, and what the Team plan leaves you doing by hand. Every price below comes from Karbon's pricing page, which I checked on November 11, 2026.

Karbon pricing at a glance

Don't budget from that table until you've checked two things.

First, monthly billing has a floor. The page says "Monthly subscription only available for teams of 4+" under both Team and Business. A solo practitioner or a three-person firm is looking at an annual commitment.

Second, the page has a currency selector with nine currencies, and the price text itself doesn't name one. The figures above are what the page showed me by default. Confirm the currency on your own screen before you quote these numbers to a partner.

What a small firm actually pays

Karbon prices per user, so the bill follows headcount. Here's the math from the published rates:

Paying monthly costs $20 more per user per month on Team and $10 more on Business. For the four-person firm in the opening, moving from Team to Business on annual billing adds $120 a month, or $1,440 a year. For most small firms I'd judge that $1,440 on one feature: automatic client reminders.

What every Karbon plan includes

The page has an "all plans include" section. On every tier you get:

• Email triage, so the team can share, assign and comment on client emails
• Workflow: assigned tasks, work created from templates, scheduled jobs, dashboards
• Client management, which the page says includes "automated client requests"
• A client portal for tasks and document sharing
• Document management
• Billing and payments
• Ecosystem integrations

That covers a lot of what the shared inbox and the spreadsheet were doing. For plenty of small firms, getting client email and the work list into one place is the whole reason to buy.

Team vs Business: the line that matters

Business adds three things: automatic client reminders, task automation, and industry integrations.

The first one is where I'd slow down. Every plan lists "automated client requests." Only Business and up lists "Automatic Client Reminders." The page doesn't spell out where one ends and the other begins. Read plainly, Team sends the request for documents and Business keeps nudging the client who ignores it. I couldn't confirm that from the page, so ask sales this exact question: on Team, when a client hasn't responded to a request after a week, does anything go out on its own?

If the answer is no, Team leaves the worst part of tax season where it is. The request goes out, a third of clients don't answer, and somebody senior starts writing follow-ups. I described how that plays out in why accounting firms spend March chasing documents.

Task automation is the same kind of difference inside the firm. On Team, work moves to the next step when a person moves it.

What the pricing page doesn't say

A few things I looked for and didn't find in what I could read of the page:

• Add-on prices. Email Insights and Custom Reporting are both marked "Paid add-on" in the comparison table, with no price.
• E-signatures. They aren't listed as a feature on any plan. If you need Form 8879 signed inside the same tool, ask how that works.
• Usage limits. The comparison table shows numeric caps near the workflow rows that rise from Team to Business and go to unlimited on Enterprise. The page doesn't label them clearly, so ask what counts against them.
• Onboarding or setup fees, contract terms, a free trial, and cancellation terms. I didn't find any of these stated.
• Card processing rates for the payments feature.

The answers may all be fine. But the per-user price is only part of the bill, so I'd bring this list to the demo and get each answer in writing.

What stays by hand, even on Business

Business gives you reminders and automation, but somebody at the firm still decides what they say and when they go out. Someone also has to:

• Write the document list for each kind of client, so a W-2 household and an S corp owner don't get the same request.
• Decide when a nudge turns into a phone call.
• Screen new inquiries before a partner spends a half hour on the phone. I covered that in accounting firm new client intake.
• Catch the call that comes in at 6pm on April 10 while everyone is heads-down.
• Chase the signature and the fee once the return is done, which is its own stall. More on that in why firms finish the return and then wait to file it.

Filling the gaps on Team without upgrading

If Team fits the budget and the firm mostly needs the chase handled, the missing pieces can run alongside Karbon:

1. A reminder schedule for open document requests. Clients who haven't sent their documents get a short, specific nudge at day 3, day 7 and day 14, and it stops the moment they respond.
2. Missed-call text back. An unanswered call gets a text from the firm's number within a minute, asking what the caller needs.
3. An intake form for new prospects that asks the screening questions up front and sends one readable summary to the partner.
4. Appointment booking with a confirmation and a day-before reminder.
5. A Friday summary: returns waiting on documents, returns waiting on signatures, invoices outstanding, new inquiries.

For a four-person firm, compare that against the $1,440 a year the Business upgrade costs. Sometimes the upgrade is the simpler answer, and I'll say so. My builds start at $500 one-time, then a flat monthly from $99 after an included run-in period, cancellable. I built sorted intake like this for a freight forwarder, where quote, import, export and general inquiries each arrive already categorized. There's more on the firm version on the accounting firm automation page.

What stays with a person

A preparer reviews the return. A partner decides whether to take a new client and has the conversation about fees. When a client is confused or upset about a notice, a person calls them back. And when the third reminder gets no answer, a human picks up the phone, because by then something else is going on. Keep client tax documents inside tools your firm has vetted, and keep them out of any reminder text or email. A reminder can say "we're still waiting on two items" without saying what's in them.

Before you pick a plan

If you're pricing Karbon, or you're already on Team and still chasing documents by hand, book a free 20 minute process audit. We'll look at where your week stalls and whether the fix is the Business plan or a small build around the plan you have. Book it here.