Why We Built This
If you've ever tried to calculate your quarterly taxes online, you've probably run into the same problem: every calculator wants your email address, wants you to sign up for an account, or tries to upsell you on tax software you don't need.
That's not how tax calculators should work. You should be able to get an instant, accurate estimate without giving up your personal information or sitting through a sales pitch.
Quarterly Tax Pro gives you instant tax calculations with no signup, no upsell, and no nonsense. Just real numbers from real tax professionals.
Who We Are
Every calculator and guide on this site is verified by Nausheen Shahid, the founder of LMN Tax Inc., a tax preparation and accounting firm based in Manassas, Virginia.
Nausheen has 22+ years of experience in tax, payroll, and accounting. Since founding LMN Tax in 2015, she has served over 5,000 clients across Northern Virginia and saved them more than $5 million in taxes and penalties.
LMN Tax specializes in small business tax preparation, quarterly tax planning, and helping self-employed individuals navigate the IRS without the stress. If you need professional tax help beyond these calculators, you can learn more at lmntax.com/about.
Our Commitment
All tax rates, deductions, and rules on this site are sourced directly from IRS publications and verified for the current tax year. When the IRS updates rates or rules, we update our calculators.
We don't sell your data, we don't require signup, and we'll never ask for your Social Security number or personal financial information. These tools are genuinely free.