TheTaxCalc for Tax Professionals
Free, CPA-reviewed tools and research for tax professionals. Model client scenarios, embed calculators on your website, access original tax research, and demonstrate OBBBA impact — all without sign-up, per-client fees, or data collection.
64+
Calculators
6
Research Studies
50
States Covered
$0
Cost Forever
Professional Tools & Resources
Client Scenario Modeling
Use 64+ calculators to model client scenarios instantly. Compare take-home pay across states, project retirement balances, estimate self-employment tax, and model OBBBA impact — all without sign-up or client data storage.
Open Paycheck CalculatorEmbeddable Calculator Widgets
Add any TheTaxCalc calculator to your professional website with a simple embed script. Your clients get accurate, CPA-reviewed calculations directly on your site — with a DoFollow attribution link back to your practice.
Get Free WidgetsOriginal Tax Research
Access 6 original empirical studies on state tax burdens, property tax disparities, remote worker tax attractiveness, tax refund statistics, and OBBBA impact. Use them in client presentations, newsletters, and planning memoranda.
Browse ResearchCPA-Reviewed Methodology
Every calculation is reviewed by a Certified Public Accountant and documented transparently. The full methodology page cites IRS publications, SSA data, and state revenue department sources — giving you confidence in every number.
View MethodologyBulk State Comparison
Quickly compare tax burdens across all 50 states for clients considering relocation. The state comparison tool shows income tax, sales tax, property tax, and total effective burden side-by-side.
Compare StatesOBBBA Comparison Tool
The dedicated OBBBA tax calculator shows clients exactly how the One Big Beautiful Bill Act changes their 2026 federal taxes versus prior law — including new SALT cap, doubled CTC, and tip/overtime deductions.
OBBBA CalculatorHow Tax Professionals Use TheTaxCalc
During client meetings
Pull up the paycheck calculator to show clients exactly how a raise, 401(k) change, or state relocation affects take-home pay — in real time, no software to install.
For relocation planning
Use the state comparison tool to show clients the tax implications of moving from California to Texas, New York to Florida, or any state combination.
For OBBBA client education
The OBBBA tax calculator demonstrates exactly how the new law changes each client's tax bill — making abstract policy concrete and actionable.
On your professional website
Embed free calculators on your firm's website to attract visitors, demonstrate expertise, and provide value without building tools from scratch.
In client newsletters & presentations
Reference original research studies on state tax burdens, property tax disparities, and OBBBA impact to add credibility and data-driven insight to your communications.
Transparent, CPA-Reviewed Methodology
Every number on TheTaxCalc is derived from official government publications and reviewed by a Certified Public Accountant. The full methodology page documents exactly which sources we use, how each tax is calculated, and what assumptions go into our 2026 calculators.
Primary Data Sources:
- • IRS Publication 15-T — Federal Income Tax Withholding Methods (2026)
- • IRS Revenue Procedure 2025-25 — Annual inflation adjustments for 2026
- • Social Security Administration — 2026 wage base ($184,500)
- • State revenue departments — State-specific brackets and deductions
- • Tax Foundation — Property tax and state tax burden analysis
- • Bureau of Labor Statistics — Consumer Expenditure Survey
Frequently Asked Questions
Is TheTaxCalc free for tax professionals?
Yes. All calculators, research, and embeddable widgets are 100% free for tax professionals. There is no premium tier, no per-client fee, and no subscription required.
Can I embed TheTaxCalc calculators on my professional website?
Yes. TheTaxCalc provides a free embeddable widget system that allows you to add any of our 64+ calculators to your professional website. Visit our widgets page for installation instructions.
Is the methodology documented for professional review?
Yes. TheTaxCalc publishes a comprehensive methodology page documenting every calculation source. All calculations are CPA-reviewed.
Can I use TheTaxCalc research in client presentations?
Yes. TheTaxCalc Research Division publishes original empirical studies at /research. All research is available under Creative Commons Attribution license.
Does TheTaxCalc offer bulk state comparison tools?
Yes. TheTaxCalc provides 50-state comparison tools for tax burdens, property taxes, and sales taxes.
Start Using TheTaxCalc Professional Tools
No sign-up. No cost. No data collection. Just accurate, CPA-reviewed calculators.