Karbon review (2026): is it worth $59 a month per user, billed yearly?
Practice management software for accounting firms
Black Friday: is there a Karbon sale?
Karbon report card
Weak · out of 4.0 · graded Nov 12, 2026
Best for practice management for accounting firms
Karbon is practice management for accounting firms, with shared email triage, workflows and client requests, from $59 a user a month on yearly billing. There's no self-serve trial, so you start with a demo request, and client reminders and task automation sit on the dearer plan.
Who Karbon is for
- Fits if you run an accounting firm and want shared client email and workflow in one place
- Makes sense if your firm already works in Gmail and Google Calendar
Who Karbon is not for
- Not for you if you want software for your own books, as it's built for firms
- Skip it if you want to try it yourself first, because there's no self-serve trial
- Pricey if you want automation: reminders and task automation need Business at $89 a user
- Watch out: monthly billing is open only to teams of 4 or more users
Why Karbon gets a 1.6
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- DValue for money$59 a user a month billed yearly for Team and $89 for Business, where the automation is. That's past the $52 where the dearer quarter starts, and Business is above $75.
- FFree plan and trialNo free plan, and the pricing page says self-serve free trials aren't offered, so access starts with a demo request.
- CFeaturesShared email, workflow templates, a client portal, time, budgets and billing. It runs a firm and doesn't keep a business's books, and automation isn't on Team.
- CEase of useNo store rating on record. You set up templates and client requests, and access starts with a demo.
- BPlatforms and integrationsWeb, iPhone and Android, with Gmail, Google Calendar, Google Drive, Ignition and QuickBooks Online Accountant, plus an API.
What these grades rest on. Graded from this listing, whose facts were read from Karbon's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
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<a href="https://toolgpa.com/tools/karbon#review"><img src="https://toolgpa.com/badge/karbon.svg" alt="Karbon: 1.6 GPA on ToolGPA" width="196" height="56"></a>Where Karbon stands among accounting and invoicing tools
Karbon's GPA of 1.6 is higher than 1 of the 65 other accounting and invoicing tools we grade, and level with 5.
It stands best on platforms and integrations (B, above 13 of 65) and worst on free plan and trial (F, above 0).
Its paid plans start at $59 a month for each person, against a middle price of $18.09 for the category: 47 of the 54 others that charge start lower.
On features, ease of use and platforms it scores 2.3 out of 4. 15 tools score higher and cost less.
Each grade against the category
Every bar is all 66 accounting and invoicing tools we grade, cut by the letter each got. Karbon’s own letter is outlined.
- DValue for moneyAbove 0 of 65, level with 12
- FFree plan and trialAbove 0 of 65, level with 10
- CFeaturesAbove 4 of 65, level with 46
- CEase of useAbove 1 of 65, level with 56
- BPlatforms and integrationsAbove 13 of 65, level with 46
Price against what you get
Each dot is one of 58 accounting and invoicing tools. Further left costs less, and higher up scores better on features, ease of use and platforms. Point at a dot to see which tool it is.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Keep Karbon, or make your own?
Keep it
To replace Karbon you would be making connections to other products, each kept working as those products change. That is not a weekend's work, with an AI app builder or without one.
That makes this kind of software worth paying for, not this one in particular: 59 of the 65 other accounting and invoicing tools grade higher. It costs $708 a year.
What you could make
- Time tracking, invoicing and tasks: an app builder makes these well.
What you could not
- Connections to other products, each kept working as those products change.
- One mailbox that several people work at once.
- A real app for iOS and Android. Something home-made would be a web page.
- It is priced for each person, which means accounts and billing for a team.
- AI features, unless you pay a model provider for each request yourself.
What this rests on. Karbon’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is Karbon?
Karbon is practice management software for accounting and bookkeeping firms rather than for a business keeping its own books. It combines shared email, workflow templates, client requests, time tracking and billing so a firm can run client work in one place.
Worth knowing
- It is a tool for running a firm, not general ledger software for a business's own books.
- The pricing page says self-serve free trials are not offered; access starts with a demo request.
- Monthly billing is open only to teams of 4 or more users.
- Automatic client reminders, task automation and industry integrations are not on the Team plan.
Key features
- Shared email triage
- Team members can share, assign and comment on client emails, with comments and @mentions on emails, tasks and notes.
- Workflow templates
- Work is created from templates with statuses and types. Limits rise by plan: 35, 50 or unlimited statuses and 40, 75 or unlimited templates.
- Client requests and portal
- Clients get requests, file uploads and comments through a portal. Automatic client reminders need the Business plan.
- Time, budgets and billing
- Track time against budgets, then bill and collect payment from inside the same workflow.
- Integrations and API
- Connects with Gmail, Google Drive, Ignition and QuickBooks Online Accountant, and has a public API for contacts, work items and timesheets.
Karbon pricing
As of Nov 12, 2026, Karbon is a paid product, starting at $59 per user / month, billed yearly ($79 billed monthly).
- Starts at
- $59 per user / month, billed yearly ($79 billed monthly)
- Free plan
- None
- Free trial
- None listed
| Plan | Price | What you get |
|---|---|---|
| Team | $59per user / month, billed yearly ($79 billed monthly) | Integrated email, workflow and to-do lists, time tracking and budgets, billing, payments and engagements. Monthly billing needs 4+ users. |
| Business | $89per user / month, billed yearly ($99 billed monthly) | Team features plus automatic client reminders, task automation and industry integrations. Monthly billing needs 4+ users. |
| Enterprise | Custom | Adds an enterprise platform, a dedicated Karbon contact, customization and unlimited usage limits. |
Read from karbonhq.com on Nov 12, 2026. Prices change, so confirm with Karbon before you buy.
Works with
- Gmail
- Google Calendar
- Google Drive
- Ignition
- QuickBooks Online Accountant
- Microsoft Entra ID
Karbon alternatives
- Karbon vs Canopy
From $74/mo
- Karbon vs Jetpack Workflow
Free trial · from $40/mo
- Karbon vs Dext
Free trial · from $25.21/mo
- Karbon vs Botkeeper
From $53/mo
Common questions
Does Karbon have a Windows app?
No Windows app was listed when its pages were read on Nov 12, 2026. Karbon is listed for Web, iOS and Android.
Does Karbon have a macOS app?
No macOS app was listed when its pages were read on Nov 12, 2026. Karbon is listed for Web, iOS and Android.
Is Karbon open source?
Karbon is not described as open source on its own site, as read on Nov 12, 2026.
Does Karbon have an API?
Yes. Karbon offers a public API, according to its own site.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Nov 12, 2026.