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Karbon

Venture-backed US practice-management leader; $66M Series B and Aider acquisition bring native AI close.

Primary

Practice Mgmt

Kind

Practice Mgmt

Raised

~$166M

Pricing

$59–$99/user/month

01Score Breakdown

Each dimension is a composite of public signals. The Index is a weighted average; weights are published on the methodology page.

Autonomy · 30%
70.0
Accuracy · 20%
78.0
Coverage · 13%
84.0
Local Fit · 13%
50.5
Integrations · 8%
84.0
Traction · 8%
92.0
Pricing · 8%
68.0
02Feature Coverage

Where the tool plays across the 17-category taxonomy used by this index.

General Ledger

The system of record — chart of accounts, journal entries, trial balance.

Transaction Categorization

Classifying bank and card transactions against a chart of accounts.

Bank Reconciliation

Matching ledger entries to bank statements; flagging discrepancies.

Accounts Payable

Bill capture, vendor management, approval workflows, payment execution.

Accounts Receivable

Invoicing, dunning, collections, payment matching.

Month-End Close

Accruals, deferrals, depreciation, task orchestration, review workflows.

Financial Reporting

P&L, balance sheet, cash flow, variance analysis, board-ready packs.

Tax

Income tax, sales tax / VAT / moms, nexus tracking, e-filing.

Audit Prep

Documentation, PBC lists, evidence trails, auditor collaboration.

Payroll

Wage calculation, withholdings, benefits, regulatory filings.

Multi-Entity Consolidation

Inter-company elimination, currency translation, consolidated statements.

Revenue Recognition

ASC 606 / IFRS 15 automation, performance-obligation tracking.

Expense Management

Corporate cards, expense policy, reimbursements, spend controls.

FP&A Copilot

Forecasting, budgeting, scenario modeling, variance commentary.

Natural-Language Interface

Conversational query, report generation, and action-taking via chat.

Practice ManagementPrimary

Firm-side workflow, client portals, deadlines, CRM, billing, and team orchestration for accounting and tax practices.

AI Tax Research

Generative-AI research and memo-writing assistants trained on tax code, rulings, and case law.

03Research

Karbon is the clearest benchmark for modern, firm-first practice management — #1 in G2's quarterly reports for 17 consecutive quarters through Winter 2026, with 30,000+ accounting professionals across 33 countries using the product. The January 2026 $66M Series B led by Tidemark took total raised to roughly $166M, and the September 2025 acquisition of Aider (a New Zealand AI-reporting tool) added native agentic period-close, inline transaction editing, and AI management reporting to the platform.

The Aider acquisition is the structural change: Karbon has traditionally been a practice-cockpit on top of third-party ledger and compliance tooling, and the Aider tech brings a real agentic surface on the bookkeeping and reporting axes — a meaningful autonomy uplift that sits alongside the existing Karbon AI drafting and workflow-triage features. Public claims of ~18.5 hours per employee per week of freed-up time should be read as a marketing number but directionally consistent with the product's triage-heavy positioning.

Country fit is strongest in the US and meaningfully strong in the UK, where Karbon has invested in Companies House and HMRC deadline automation. Germany and Sweden remain non-markets; DATEV, Agenda, and Capego own those seats.

Citations