Karbonhq

Practice management software for accounting firms — manage work, clients, and revenue in one place

karbonhq.com

Verified API available Works with n8n · Zapier ~6.8k monthly visits

Quick facts
What is it	Practice management software for accounting firms — manage work, clients, and revenue in one place
Pricing	Paid — from €54/mo
Free tier	No
Platform	Web Application
API	Yes
Works with	n8n, Zapier
Best for	Managing client engagements from proposal to payment, Automating month-end close and tax workflow
Domain registered	2015

Data updated Aug. 1, 2026

What does Karbonhq do?

Karbonhq is practice management software built specifically for accounting firms. It gives teams a single platform to manage client work, track projects, handle billing, and communicate — all in one place. Instead of juggling separate tools for email, tasks, documents, and client portals, Karbonhq brings everything together so nothing slips through the cracks. The platform is designed to help firms boost productivity, strengthen client relationships, and drive profit.

The software includes an AI coworker called Kai that knows your firm's data — clients, work items, and team members. You can ask Kai to summarize a client's status, pull up recent communications, or take on a task. Beyond AI, Karbonhq offers automation for repetitive tasks like data collection and onboarding, a client portal for sharing documents and requesting signatures, and built-in e-signatures and approvals. It also provides real-time visibility into job status, resource allocation, and financial reporting through analytics dashboards. Integrations with tools like Google Drive, OneDrive, and tax software extend its capabilities.

Karbonhq is best suited for accounting firms of all sizes — from small practices to large enterprises — that want to standardize workflows and improve team collaboration. It's especially useful for firms handling recurring engagements like tax preparation, audits, and monthly closes. Partners and managers get a clear view of firm-wide progress, while staff benefit from automated task assignments and reduced manual follow-ups. The platform is web-based, so teams can work from anywhere.

Calendar & Scheduling E-Signature Project Management

#accounting-firms#ai-coworker#billing#client management#practice management#reporting#team collaboration#workflow automation

Key features

What makes it stand out

AI coworker Kai that summarizes client data and handles tasks using firm information

Automate repetitive tasks, standardize processes, and schedule data collection

Unite team communication, email, jobs, and tasks in a single platform

Track every job's status, who's working on it, and client communications in real time

Built-in billing, payments, e-signatures, and client portal for end-to-end engagement management

Who is Karbonhq for?

Who benefits most from this tool

Managing client engagements from proposal to payment

Automating month-end close and tax workflow

Tracking project progress and team workload across the firm

Pricing

Team

€54.0/month

€49.0/month billed yearly

Integrated Email
Team Collaboration Tools
Workflow and To-Do Lists
Time Tracking & Budget Reporting
Billing
Engagements

Business

€69.0/month

€59.0/month billed yearly

Everything in Team, plus:

Automatic Client Reminders
Task Automation
Industry Integrations

Enterprise

Custom

Everything in Business, plus:

Enterprise Platform
Dedicated Karbon Contact
Customization
Unlimited Usage Limits

Trust & presence

Search presence Top 100k site

Domain Domain registered 2015

Gallery

Click any image to enlarge

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