About NextyFy
The trusted platform for accurate US tax calculations. Built by certified financial professionals, powered by official IRS data.
NextyFy is the trusted resource for free, accurate, and professional-grade financial calculators designed specifically for US taxpayers.
Our mission is to demystify the complex world of United States taxes and personal finance. We believe everyone should have access to the same quality tools that tax professionals use — without paying for expensive software or consulting fees.
Who We Are
Michael R. Thompson Founder & Lead Financial Analyst
- •10+ years of experience in tax preparation, financial planning, and accounting
- •Former Senior Tax Analyst at a Big Four accounting firm
- •Personally reviews and validates every calculator formula and tax bracket update
- •Based in Austin, Texas, USA
Our team includes certified public accountants (CPAs), enrolled agents (EAs), and financial analysts who contribute to content creation and verification. All contributors are selected for their real-world expertise and commitment to delivering accurate, actionable financial guidance.
Our Methodology & Data Sources
Every calculator on NextyFy is built using a rigorous, transparent process to ensure accuracy and reliability:
Official IRS Publications
Tax brackets, standard deductions, and contribution limits are sourced directly from IRS Revenue Procedures and Publications (Rev. Proc. 2024-40, Publication 15-T, Publication 505).
State Tax Authorities
State income tax rates and brackets are sourced from each state's department of revenue or taxation official documentation.
Annual Review Process
Our team reviews and updates all calculators within 48 hours of IRS announcements. Each update is peer-reviewed by at least one CPA before publication.
Client-Side Processing
All calculations run directly in your browser. No financial data is ever transmitted to our servers, ensuring complete privacy.
What We Do
We specialize in creating comprehensive tools and educational content across key areas of personal finance:
- Federal Income Tax: Accurate calculators for all filing statuses and tax brackets
- State Taxes: State-by-state tax calculators and guides for all 50 states
- Payroll & Self-Employment: Social Security, Medicare, and self-employment tax tools
- Investment Taxes: Capital gains, property tax, and sales tax calculators
- Tax Education: In-depth guides explaining complex tax concepts in plain English
Our Promise to Readers
- Accuracy First: Our calculators are updated within 48 hours of any IRS tax law changes or bracket adjustments
- 100% Original Content: All guides and articles are written by our team of finance professionals
- Privacy Protected: Your calculations happen in your browser. We never store your personal financial data
- Free Forever: We believe financial literacy is a right, not a privilege. All tools remain free
- IRS Compliant: All content follows IRS guidelines and official tax documentation
Editorial Standards
As a YMYL (Your Money, Your Life) publication, we hold ourselves to the highest editorial standards:
- Fact-Checked: Every piece of financial data is verified against official government sources before publication.
- Expert-Reviewed: Content is reviewed by CPAs and enrolled agents for accuracy and completeness.
- Regularly Updated: All calculators and articles display their last review date and are updated when tax laws change.
- Transparent Sourcing: We cite IRS publications, revenue procedures, and state tax authority documents wherever applicable.
Our Commitment
We are committed to providing you with the most up-to-date and reliable information possible. Our calculators are built using official IRS tax tables and formulas, and we continuously monitor for changes in tax legislation.
While we strive for perfection, tax laws can be complicated and subject to change. We always recommend consulting with a qualified tax professional for your specific situation, but we're here to give you the best starting point possible.
Contact Us
Have questions, suggestions, or found an error? We'd love to hear from you. Reach out to us at contact@nextyfy.com and we'll respond within 24-48 hours.