AI for CAS Practices: Closing Every Client's Month in 2026

77 tools in this directory serve a client accounting services practice and 39 name CAS outright. CAS is the segment vendors built the agents for: a firm closing forty clients' months on the same calendar is the ideal customer for software that codes, reconciles and explains variances on its own and hands the exceptions to a person. This guide walks the CAS practices page from the bank feed to the board report, with October 2026 prices from the vendors' own sites.

The close that runs itself

Double is the posted-price entry point: AI bank feeds with confidence-staged categorization, AI journal entries, variance explanations and Autoclose agents as an add-on, from $10/client/mo, synced to QuickBooks Online, Xero, Sage Intacct and NetSuite. Xenett ($7.5/client/mo) runs 50-plus AI checks and a Books Health Score. Truewind and Pilot's Meridian close the books end to end — transaction coding on autopilot, reconciliation across every account, flux analysis before each close — at quoted prices, with every decision logged for review. The AI-native ledgers do the same inside the general ledger: Digits ($65/client/mo) runs an Agentic Close, Kick opens the books to Claude and ChatGPT over MCP, Botkeeper ($149/license/mo) tracks closes across clients, and Docyt (quoted) runs 16 agents toward a zero-day close for hospitality and multi-location clients. Basis brings its month-end close agents to CAS teams at quoted pricing.

AP, AR and cards you operate for clients

BILL's Accountant Console runs client payables and receivables across entities for $49/user/mo, with agents that read and code bills, catch duplicates and flag unusual amounts. Melio costs the firm nothing, clients get 45 days free then 30% to 45% off, and Agent Mel answers questions about client AP. Forwardly is a $0 platform with a multi-client dashboard, AI bill capture and instant transfers at 1%. Chaser handles collections — from $233/mo on US pricing — with an AI email generator that reads each debtor reply and drafts the response. For spend, Ramp (free plan), Brex (Essentials $0/user/mo), BILL Spend & Expense ($0/user/mo), Expensify (free plan, Collect $5/member/mo) and Zoho Expense (from $3/user/mo) code transactions, match receipts and flag fraud with AI, and every one has an accountant program.

Payroll under the firm's umbrella

Gusto ($49/mo plus $6 a person) pays partners up to 20% revenue share; Rippling (from $8 an employee a month) runs payroll, HR, spend and bill pay on one platform with a reseller tier; Deel (from $49 a contractor a month) covers clients with international teams and carries the compliance liability; Paychex Flex and RUN Powered by ADP are quoted, with Partner Pro and Accountant Connect dashboards for multi-client work and AI assistants for payroll and HR questions.

The report the client pays for

Clockwork's firm plans ($999/mo on annual billing) build a 5-year model and a 52-week cash forecast for every client, and Mira, its AI analyst, runs weekly client briefings on the higher tiers. Jirav starts at $50/mo on its wholesale tier with one-toggle AI forecasting; Fathom ($59/mo for one company) writes report commentary with every figure traced to its source; Spotlight Reporting ($329/mo for ten organizations) drafts executive summaries and action plans; Reach Reporting ($149/mo) flags anomalies and writes the narrative; Aider (from a $150/mo minimum) closes the period and generates management reports across the client base; LiveFlow (quoted) pulls live QuickBooks data into Excel and Google Sheets. Syft Analytics is free with qualifying Xero plans for partners.

The console the team works from

Intuit Accountant Suite (free on Core; Accelerate $149/mo from January 2027) puts client QuickBooks files, team work and AI-powered automations in one place and has an Agentic Books Close coming. Client Hub ($49/user/mo) runs month-end close work with Magic Books Review. Canopy ($74/user/mo) sells Close Automation as a power-up at $10 per connected client. Karbon ($59/user/mo) and Financial Cents ($19/user/mo) run the recurring work and the client requests.

Where to start

Start with the review layer, not the full agent: Xenett at $7.5 or Double at $10 a client tells you in a month how clean the files really are and which clients would pay for a faster close. Then put the firm's own books on one of the AI-native ledgers — Digits gives you those free — and judge the agentic close on your own numbers before you move a client.

Quick answers

What does AI month-end close software cost per client?

Xenett is $7.5/client/mo, Double $10/client/mo (Autoclose agents extra), Digits $65/client/mo as a full ledger, and Botkeeper $149/license/mo. Truewind, Meridian, Docyt and Basis are quoted.

Which bill-pay platforms are free for the CAS firm?

Melio (free for the firm, clients discounted 30% to 45%), Forwardly ($0 platform with per-transfer fees), BILL Spend & Expense ($0/user/mo) and Brex Essentials ($0/user/mo). BILL's accountant AP & AR Partner plan is $49/mo.

Which forecasting tools have AI that writes the commentary?

Fathom's Commentary Writer ($59/mo for one company), Spotlight Reporting's executive summaries ($329/mo), Reach Reporting's narrative insights ($149/mo), Clockwork's Mira analyst (firm plans from $999/mo) and Syft Analytics' AI summaries (free plan).

Do the agentic close tools let a person review before anything posts?

The vendors say so on their own sites: Double stages categorizations by confidence, Meridian logs every decision for review, Truewind runs flux analysis before each close, and Integra Balance AI has Integra's accountants monitoring the bot. Confirm the review step on your own files during the trial.