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    3. Tax Law
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    Tax law without the research hours

    Regulations, opinions, filings — AI that knows tax law across jurisdictions.

    Start FreeSee It In Action
    Tax Research

    AI-powered analysis

    847
    Matters Handled
    23
    Jurisdictions
    75%
    Time Saved
    15,000+ law firms100,000+ people200+ countriesLegal AI ChateFirm

    What's slowing you down

    Tax law changes annually

    Every budget brings new rules.

    Cross-border tax complexity

    Treaties, withholding, PE — intricate.

    Client tax opinions expensive to write

    Every opinion is hours of research.

    Audit defense documentation heavy

    Every deduction defended with paper.

    Digital services taxes emerging

    DSTs changing fast, jurisdiction by jurisdiction.

    How HAQQ solves it

    Current tax law

    HAQQ updates as rules change.

    Cross-border tax support

    Treaties, PE, withholding — covered.

    AI-assisted tax opinions

    Draft and refine opinions faster.

    Audit prep automation

    Documentation compiled continuously.

    DST tracking

    New digital services taxes monitored globally.

    Every tax workflow

    Legal Research

    Research case law, statutes, and regulations in seconds. AI that reads and synthesizes legal sources for you.

    AI Legal Assistant

    An AI assistant trained specifically for legal work. Research, draft, and analyze with an AI that understands law.

    Document Extraction

    Pull out key terms, dates, parties, and obligations from any document. Data extraction at scale.

    Contract Review

    Review contracts in minutes, not hours. AI that spots issues, flags risks, and suggests improvements.

    How tax law works with HAQQ

    1

    Scope the question

    Domestic, cross-border, treaty.

    2

    Research the law

    Current rules, cases, guidance.

    3

    Draft the opinion

    AI drafts. Tax counsel refines.

    4

    Defend on audit

    Documentation archived continuously.

    5

    Monitor changes

    New rules flagged as published.

    Not sure which one fits?

    eFirmChat

    AI for Tax Law

    Regulations, opinions, filings — AI that knows tax law across jurisdictions.

    eFirm

    HAQQ for Compliance Officers

    KYC, policy tracking, and regulatory monitoring — automated.

    eFirm

    HAQQ for In-house Counsel

    Contracts, compliance, and risk — one AI platform for your business.

    FAQ

    Does HAQQ file tax returns?

    No — HAQQ is legal, not accounting. Tax prep is separate.

    Transfer pricing

    Transfer pricing analysis supported, documentation drafts included.

    Tax planning

    Legal aspects yes — pure planning should include tax advisors.

    Sales and use tax

    Supported for jurisdictions where HAQQ has coverage.

    Related solutions

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    AI Regulatory Compliance

    A new data-protection rule drops and the GC wants to know what changes by Friday. HAQQ reads the regulation, maps it to what your business actually does, and drafts a cited compliance memo — instead of a week of manual reading.

    See the workflow
    Solutions by Role
    eFirm

    HAQQ for In-house Counsel

    Contracts, compliance, and risk — one AI platform for your business.

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    Solutions for You
    MobileChateFirm

    HAQQ for Business Owners

    Contracts, compliance, disputes — AI that runs your legal work.

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