Basis
Basis helps accounting firms automate complex workflows with autonomous AI agents.
Basis builds AI agents that autonomously execute complex accounting workflows end-to-end, including tax return preparation, audit testing, and reconciliation tasks. The platform ingests data from accounting systems and ERPs, performs analysis and calculations, and delivers finished work for human review. Top accounting firms use Basis to shift their teams from execution to review, achieving 20-50% efficiency gains across tax, audit, and advisory practices.
Problem solved
Accounting firms spend significant time on repetitive execution tasks like reconciliations, journal entries, tax return preparation, and audit workpapers, limiting capacity for client advisory work.
Target customer
Top 25 accounting firms (Big Four and regional firms) with tax, audit, and advisory practices seeking to increase capacity and shift staff to higher-leverage client work.
Founders
M
Matthew Harpe
CEO & Co-Founder
Former Boston Consulting Group and SoftBank executive.
M
Mitchell Troyanovsky
Co-Founder
Co-founder of Basis AI.
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Zenna Tavares
Founder
Innovation scholar at Columbia University's Zuckerman Mind Brain Behavior Institute and associate research scientist in the Data Science Institute.
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Emily Mackevicius
Founder
Leads Basis' Collaborative Intelligent Systems group; postdoctoral researcher studying memory at Columbia's Center for Theoretical Neuroscience.
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Eli Bingham
Founder
Machine learning fellow at Broad Institute of MIT and Harvard; co-creator of Pyro probabilistic programming language; former senior research scientist at Uber AI Labs.
Funding history
Seed
$3.6M
September 2023
Led by Better Tomorrow Ventures
· BoxGroup, Abstract Ventures
Series A
$34M
December 2024
Led by Khosla Ventures
· Better Tomorrow Ventures, BoxGroup, Avid Ventures, NFDG, angel investors including Nat Friedman, Daniel Gross, Larry Summers, Adam D'Angelo, Jeff Dean
Series B
$100M
February 2026
Led by Accel
· GV (Google Ventures), Khosla Ventures, Lloyd Blankfein, NFDG, Better Tomorrow Ventures, BoxGroup, Avid Ventures, Adam D'Angelo, Amjad Masad, Clem Delangue
Total raised:
$137.6M
Pricing
Not publicly available. Enterprise custom pricing for accounting firms.
Notable customers
Approximately 30% of Top 25 accounting firms. Named customers include Boulay PLLP, Clark Nuber PS, MarksNelson LLC, Pinion LLC, UHY LLC, and Wiss.
Integrations
OpenAI (o3, o3-Pro, GPT-4.1, GPT-5), accounting systems, enterprise resource planning platforms
Tech stack
jQuery (JavaScript libraries)
core-js (JavaScript libraries)
HTTP/3
HSTS (Security)
Google Font API (Font scripts)
jsDelivr (CDN)
Google Hosted Libraries (CDN)
Cloudflare (CDN)
Webflow (Page builders)
Website
Competitors
AvidXchange
Broader financial operations platform focused on accounts payable automation rather than end-to-end accounting workflows.
AppZen
Specializes in expense and compliance automation; narrower focus than Basis' multi-practice approach.
Canopy
Tax-focused automation platform; does not address audit and advisory workflows like Basis does.
Auditoria.AI
Audit-specific AI tool; lacks Basis' multi-practice coverage across tax, audit, and advisory.
Brex
Corporate card and financial operations platform; not focused on accounting firm workflows.
Why this matters: Basis represents a fundamental shift in how accounting work gets done, with recent demonstration of the first AI agent to autonomously complete an end-to-end tax return. The $100M Series B at $1.15B valuation, led by Accel and backed by major tech leaders and OpenAI board members, signals strong market validation for AI-driven accounting automation in professional services.
Best for: Top accounting firms needing to increase capacity and shift skilled staff from execution work (reconciliations, tax returns, audit testing) to high-value client advisory and review activities.
Use cases
Autonomous Tax Return Preparation
Basis agents autonomously complete end-to-end 1065 tax returns by ingesting client financial data, performing calculations, applying compliance rules, and generating finished returns for accountant review. This eliminates manual data entry and initial drafting, reducing tax preparation cycle time by 20-30%.
Audit Workpaper Generation
Agents automatically generate audit workpapers including reconciliations, analytical procedures, and testing documentation. Auditors review and approve the work rather than creating it from scratch, improving audit team capacity and consistency.
Reconciliation and Journal Entry Automation
AI agents handle account reconciliations and journal entry preparation by analyzing transaction data, identifying discrepancies, and drafting entries with full visibility into decision logic. Accountants review and post entries, shifting from clerical work to judgment-based review.
Alternatives
BlackLine
Cloud accounting operations platform focused on reconciliation and close process; less advanced AI automation than Basis.
Armanino FloQast
Financial close management tool with some automation; narrower scope than Basis' end-to-end workflow agents.
Workiva
Enterprise reporting and compliance platform; broader but less specialized in accounting firm workflow automation.
FAQ
What does Basis do? +
Basis builds AI agents that autonomously execute complex accounting workflows end-to-end, including tax return preparation, audit testing, reconciliations, and workpaper generation. The agents ingest data from accounting systems and ERPs, perform analysis and calculations, and deliver finished work for human accountants to review and approve. This allows accounting firms to shift staff from execution to higher-value advisory work.
How much does Basis cost? +
Basis pricing is not publicly available. The company uses custom enterprise pricing tailored to accounting firm size and usage. Contact Basis directly for pricing information.
What are alternatives to Basis? +
Alternatives include BlackLine (cloud accounting operations), AvidXchange (AP automation), Canopy (tax automation), and AppZen (expense and compliance automation). These competitors offer narrower functionality or focus on specific accounting processes rather than end-to-end workflow automation.
Who uses Basis? +
Basis serves approximately 30% of the Top 25 accounting firms, including Wiss, Boulay PLLP, Clark Nuber PS, and others. The target customer is large accounting firms with tax, audit, and advisory practices that need to increase capacity and improve team productivity.
How does Basis compare to AvidXchange? +
AvidXchange focuses on accounts payable and financial operations automation for corporations, while Basis specializes in end-to-end accounting workflows for accounting firms themselves. Basis covers tax returns, audit workpapers, and reconciliations; AvidXchange handles invoice processing and payment automation. Basis is designed for accounting firm practices; AvidXchange serves corporate finance teams.
Tags
accounting automation
AI agents
tax preparation
audit automation
professional services
workflow automation
accounting firms