INTRODUCING
AI Agents Built for Tax & Accounting
HubSync HaloTM is the agentic engine at the center of every engagement. Specialized AI agents execute complete workflows in the background — from engagement letter to e-File acceptance — updating your team at key decision points and delivering outputs ready for review.
The result: your firm shifts from doing the work to reviewing the work.
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Five Stages. Specialized Agents at Every Step.
From engagement letter to e-File acceptance, HubSync HaloTM orchestrates the entire tax engagement lifecycle through five connected stages — each powered by purpose-built AI agents that work alongside your team. Every handoff happens automatically, every document is tracked from upload to filing, and every figure is traceable back to its source. The result is a single connected workflow that replaces the patchwork of tools, spreadsheets, and email threads firms rely on today.
In Action Today
From Signed to Started in Seconds
The engine that kicks off the entire client engagement. One signature cascades workspace setup, document requests, folder structures, team invitations, and billing — transforming multi-step onboarding into a single automated sequence.
- Letter Creation Agent — Pre-fills next year's engagement letter from CRM, ERP, and prior year data.
- Workspace Creation Cascade — One signature spins up the workspace, folders, request list, and workflow.
- Automated Invoice Creation — Generates invoices straight from the signed engagement letter.
- Client Reminder Agent — Tracks signatures and sends smart follow-ups until the client signs.

Every Document, Classified the Moment It Lands
Stop chasing clients for documents. Intake agents handle the whole collection process for you — matching uploads to your request lists and PBCs, checking that everything's accounted for, and reaching out to clients when something's missing.
- 1040 Document Classification — Auto-identifies W-2s, 1099s, K-1s, and more on upload.
- PBC Document Classification — Matches uploads to PBC items and checks for completeness.
- Follow-Up Agent — Smart, personalized reminders that name the exact missing document.
- Document Summarization — Pre-reads every document so preparers start fully briefed.

From Source Document to Signed Return
This is where source documents become a return. The engine reads forms, schedules, and financials, pulls the numbers that matter, and assembles the binder and workpapers automatically. Every figure links back to where it came from, carries a confidence score, and lands in the right tax software field.
- IDP Extraction & Binder Creation — Multi-modal LLMs read W-2s, 1099s, and K-1s (including unstructured footnotes and attachments) in parallel, scoring every figure for confidence and linking it back to the source as the binder is assembled.
- AI TB Mapping — Auto-maps GL accounts to Schedules K, L, and M-1/M-2/M-3, learning your firm's mapping preferences and applying them on every future return.
- Book-to-Tax Adjustment Agent — Computes MACRS depreciation, Section 274 meals, tax-exempt income, state addbacks, and TCJA compliance items, with a confidence score on every adjustment.
- Reviewer Agent — Compares extracted data against prior year, flags anomalies, runs variance analysis, and surfaces tax opportunities.
- Tax Software Integration — Maps and pushes finalized data directly into CCH Axcess, OIT, GoRS, or your tax compliance platform.
- Sign Off & Export — Manages sign-off and logs every export.

The Last Mile, Fully Automated
Once the partner signs off, the rest runs on its own. Authorizations are sent, the return is validated, rejections are caught and corrected, and follow-ups go out without anyone having to track them — straight through to IRS acceptance.
- E-File Authorization Agent — Auto-generates and sends the e-File authorization the moment the partner signs off.
- Validation Agent — Catches errors before they reach the IRS.
- Client Communication Automation — Instant firm and client notifications on IRS acceptance.
- E-File Rejection Agent — Classifies rejections and generates a fix-it checklist from historical resolutions.

Close the Return. Open the Conversation.
The end of an engagement shouldn't be the end of the conversation. HubSync HaloTM turns every completed tax, audit, CAS, and advisory engagement into client-ready deliverables — pitch decks, ROI summaries, proposals — that turn engagement close into recurring advisory revenue.
- Multi-Agent Strategy Evaluation — Specialist agents review the completed work to spot new opportunities for the client.
- Client-Ready Deliverables — Pitch decks, ROI summaries, and proposals built automatically from real engagement data.
- Cross-Service Whitespace Detection — Identifies unmet client needs across tax, audit, CAS, and advisory.
- Next-Cycle Rollover & Closeout — Carries balances and PBCs into the next cycle, archives workpapers, and saves lessons learned.
- Payments Automation — Bills and collects automatically as milestones are hit.

INTEGRATIONS
Connect your tools. Unify your workflow.
Your business runs on more than one platform — but it shouldn't feel that way. Our 1,000's of integrations connect seamlessly with the tools you already use, so your data flows effortlessly across systems without manual work or messy handoffs.
From CRM and marketing automation to finance, support, and operations, we make it easy to keep everything in sync. Set up quickly, reduce errors, and unlock real-time visibility across your entire tech stack.
Because your software should work with you — not against you.
EXPERIENCE AI IN ACTION
See How AI Transforms
Your Workflows
Discover how HubSync's AI capabilities can automate repetitive tasks, surface instant insights, and empower your team to work smarter. Schedule a demo to see intelligent automation in action and learn how leading firms are leveraging AI to gain a competitive edge.
FREQUENTLY ASKED QUESTIONS
You’ve Got Questions, We’ve Got Answers
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What is HubSync Halo?
HubSync HaloTM is the central AI orchestration engine that powers every agent and automation across the HubSync platform. It coordinates specialized AI agents across five engagement stages — Engage, Gather, Prep & Review, Deliver, and Close & Advise — while maintaining complete transparency through the Agents Control Center. Halo validates, plans, dispatches, and supervises every request, keeping your firm in control at every step.
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How does HubSync Halo handle the full tax engagement lifecycle?
HubSync HaloTM orchestrates five connected stages. It starts when a client signs an engagement letter — triggering workspace creation, document requests, and billing automatically. It then manages data collection with intelligent classification and follow-up agents. In Prep & Review, it extracts data from source documents, builds binders and workpapers, and maps to your tax compliance software. At Deliver, it handles e-file authorization, validation, IRS submission, and rejection handling. And in Close & Advise, it surfaces advisory opportunities and rolls forward everything needed for next year.
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How does HubSync Halo help with document-heavy PBC and tax work?
AI classification agents identify every uploaded document type — W-2s, 1099 variants, K-1s, schedules — and automatically match them to the request list or PBC checklist. Document summarization extracts key figures and flags anything different from prior year. Follow-up agents send personalized reminders naming the exact documents still missing. The result: preparers arrive fully briefed without opening every file.
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How does the MCP server work?
The HubSync MCP server lets outside AI assistants — like Microsoft Copilot, Claude, and ChatGPT — safely connect to your engagement data, documents, and workflows. Your team can ask these tools questions or give them tasks, and they'll work directly with HubSync on your behalf. Everything is protected by the same logins and permissions you already use in HubSync, so people only see what they're allowed to see. Every action the AI takes is recorded, and administrators decide exactly what these assistants can do and where they can do it.
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Is my data safe with HubSync Halo?AI should make your firm more efficient—not introduce new risks or uncertainty. That’s why every layer of HubSync Halo'sTM AI is designed with control, transparency, and data protection at its core. You get the benefits of automation and intelligence, without giving up oversight or trust.
- Client data is never sent to or stored by AI model providers
- Client data is never used to train AI models
- Every AI action is logged and auditable
- Your staff still approves at critical steps — HubSyncTM Halo doesn't file anything without a human checkpoint
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What is the Agents Control Center?
The Agents Control Center is a centralized hub that gives your firm complete transparency into what every AI agent is doing across every engagement. You see live thinking steps, action queues for human review, and a full audit trail. Nothing automated ships without firm approval — human-in-the-loop validation is embedded at every decision point.
STAY AHEAD IN TAX TECH
Latest Insights from HubSync Resources
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TAKE THE NEXT STEP
See HubSync AI in Action
See firsthand how HubSync Agentic Agents consolidate your entire tax workflow into one intelligent AI-enabled workflow automation platform. Schedule a demo and discover why leading accounting firms trust us to power their operations.

