About TaxPreparerTools

Built by Tax Professionals,
for Tax Professionals

We built the tool suite we always wished existed — accurate, fast, and free for the people who file returns for a living.

Our Mission

Why TaxPreparerTools Exists

Tax season puts CPAs, Enrolled Agents, and preparers under extreme pressure. The tools most professionals rely on are either buried inside expensive software subscriptions, too slow to use during client calls, or simply don't exist in standalone form.

TaxPreparerTools was built to change that. Every calculator on this platform reflects current IRS guidance — 2025 and 2026 figures, updated for inflation adjustments and legislative changes. Our tools are designed to produce a result in under 60 seconds, without requiring a login or a credit card.

We believe the fundamentals of tax calculation should be freely accessible to every professional and every taxpayer. The complex software can handle the filing — we handle the understanding.

Editorial Standards

How We Keep Accuracy

Every tool and resource on TaxPreparerTools is grounded in primary IRS sources: Revenue Procedures, Revenue Rulings, IRS Publications, and the Internal Revenue Code itself. When Congress passes new legislation or the IRS issues revised guidance, we update our tools — typically within 48 hours of an official IRS announcement.

Our editorial process includes:

TaxPreparerTools is for informational and planning purposes. Nothing on this site constitutes tax advice for your specific situation. For individual guidance, consult a licensed CPA or Enrolled Agent.

Our Team

Who Makes This

KR
K. Reynolds, CPA
Lead Tax Accuracy
15 years in public accounting. Specializes in individual and small business returns, S-corp planning, and IRS representation. Reviews all calculator logic before publication.
ML
M. Larson, EA
IRS Representation & Penalties
Enrolled Agent with a decade of IRS examination and appeals experience. Oversees penalty calculator accuracy and penalty abatement guidance.
TJ
T. James
Product & Engineering
Former Big 4 tax technologist. Builds the calculator engines, ensures IRS threshold updates are deployed in real time, and manages the AI assistant system.
Credentials & Accuracy

Standards We Hold Ourselves To

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IRS-Sourced Data
All thresholds, rates, and limits are sourced directly from IRS publications and revenue procedures.
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Annually Updated
Every calculator is reviewed and updated at the start of each tax year for inflation adjustments.
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CPA-Reviewed
Calculator logic is reviewed by a licensed CPA before publication and after any tax law change.
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No Data Stored
Calculations run entirely in your browser. We do not store or transmit the financial figures you enter.

Disclaimer: TaxPreparerTools is not affiliated with the IRS or any government agency. All tools are provided for informational and planning purposes only and do not constitute legal, financial, or tax advice. Consult a qualified CPA, Enrolled Agent, or tax attorney for advice specific to your situation.