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Practice management and workflow

Karbon

Collaborative practice management for accounting firms.

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Overview

Accounting firms with five to fifty staff that still relay client context through hallway conversations and forwarded emails need a shared workspace where everyone sees the same picture. Karbon centralises client email, workflow templates, and team task tracking so handover happens in the system, not in someone's head.

Karbon is not a CRM bolted onto an inbox plug-in. It is a shared workspace where email is the spine of the work itself. The distinction matters because most practice management tools treat email as an afterthought. The job lives in a separate task system, the conversation lives in someone's personal Gmail, and the handover meeting exists to bridge the gap. Karbon collapses the gap. Client emails route into a shared workspace, attached to the client and the open job, so anyone on the team can see the full conversation, pick up where a colleague left off, and act without a briefing.

Karbon is also not a list of tasks pretending to be a workflow. Recurring jobs such as monthly accounts, quarterly reporting, or annual tax returns are set up once as templates. When the job comes around, the template generates the assigned tasks, deadlines, and dependencies in one click. Managers get a firm-wide view of what is open, overdue, or stuck, across every client, without asking for a status update.

The Business plan adds automation rules that progress jobs between stages and send clients automatic reminders when documents are outstanding. That removes the manual chasing that quietly eats into billable time across a small firm.

Karbon works with QuickBooks, Xero, Gmail, Outlook, Google Drive, OneDrive, Slack, Microsoft Teams, and Zapier. Pricing starts at $59 per user per month on annual billing. Business is $89 per user per month. Enterprise pricing is on request. There is no free trial or free tier, which matters if you want to pilot before committing. The platform serves firms in the US, UK, Australia, Canada, and more than thirty other countries.

See it in action

Key facts

Starting price
$59 per month
Pricing model
Per user
Free trial
No
Free tier
No
Deployment
Cloud
Geography
US, UK, AU, CA, Global
Founded
2014
Support
Email, Chat, Knowledge Base, 24/7
Languages
English, French, Dutch, Spanish
Works with
Quickbooks, Xero, Gmail, Outlook, Google Drive, Onedrive, Slack, Microsoft Teams, Zapier, Hubspot, Ignition, Dropbox
Last verified
2026-05-04

Pros and Cons

Pros

  • Firms of five to fifty staff where email and shared task lists hold the team together.
  • Practices on QuickBooks, Xero, or Gmail and Outlook that want one shared client view across the team.
  • Managers who need a firm-wide view of every job and deadline without scheduled status meetings.

Cons

  • Solo practitioners who already manage every client inside their inbox without team handoffs.
  • Firms that want to try before committing. Karbon has no free trial or free tier.
  • Tax-first practices that need built-in tax organizers and pre-filing questionnaires inside the portal.

Pricing

TierPriceBillingFeatures
Team$59Per user per month, billed annuallyEmail management, task and workflow tools, client portal, document management, billing and payments.
Business$89Per user per month, billed annuallyEverything in Team plus advanced automation, client reminders, and deeper integrations.
EnterpriseCustomCustomDedicated support, custom configuration, and unlimited usage limits.

Frequently asked questions

What does Karbon do that other practice management tools don't?
Karbon's defining feature is treating client communication as a first-class object: emails, chat threads, and tasks all live in shared client triage views rather than scattered across staff inboxes. AI summarisation across long email threads is unusually good and is a real time-saver for managers picking up new files. Karbon also has a strong kanban workflow view that fits firms running multiple parallel client engagements with different stages. The tool fits firms doing mixed compliance and advisory work where collaboration matters more than tax-cycle templating.
How much does Karbon cost?
Karbon prices per user per month with annual contracts. Tiers run from around 79 to 99 USD per user per month at the standard list, with discounts on annual billing and volume above 10 users. Enterprise tiers add custom workflow, single sign-on, and dedicated support. Karbon does not publish pricing transparently on the public website, so getting a real quote requires a sales conversation. Year-one spend for a 5-person firm typically lands between 4,000 and 7,000 USD across software and onboarding.
How does Karbon compare to TaxDome and Canopy?
Three different angles on the same problem. TaxDome is tax-cycle shaped: workflow templates, client portal, and automation are tightly fit to tax-return season. Canopy is US-tax-compliance-shaped, with deep integrations to US tax software and IRS systems. Karbon is collaboration-shaped, prioritising shared inboxes, AI summarisation, and team handoffs. For tax-heavy US practices, TaxDome or Canopy fit better. For mixed compliance and advisory firms with managers covering multiple files, Karbon fits better. Geography matters too: Karbon has stronger UK and Australian adoption than the US-built alternatives.
What AI features does Karbon have?
AI summarisation of long client email threads (the strongest feature), AI-drafted client messages (chase, status update, document request), and AI-assisted task creation from inbound emails. Karbon has been more measured than many vendors about which AI features it ships, focusing on features that genuinely change daily work over flashy demos. The summarisation feature alone saves a manager picking up a file roughly 5 to 10 minutes per file in real-world use.
Is Karbon a good fit for a UK firm?
Yes. Karbon was originally built in Australia and has substantial UK and Australian customer bases alongside the US. UK pricing is published in GBP through select resellers. The platform handles MTD VAT submission via integrations with UK accounting ledgers (Xero, QBO, Sage). The UK accountant programme is smaller than TaxDome's US programme, but the product fit for UK firms doing mixed compliance and advisory work is strong.

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Last verified 2026-05-04. Pricing and features come from vendor-published specs. See our methodology.