Quarterly tax, demystified.
A friendly estimator built for solo pros — consultants, creators, coaches, and single-owner LLCs. Federal, state, self-employment tax, and a plain-English summary you can save.
Know the number before the IRS does.
Small business owners who pay their own taxes — freelancers, sole proprietors, single-owner LLCs, and single-owner S-corps. We handle both flavors: Schedule C self-employment and S-corp owner-salary + K-1 pass-through.
Not covered yet: partnerships and multi-owner LLCs — the math depends on your partnership agreement, so please work with a CPA for that.
Answer a few questions
Five short steps — income, expenses, any paycheck withholding, a few adjustments. Takes about four minutes.
See your quarterly number
Federal, state, and self-employment tax — plus a target that keeps you clear of IRS late-payment penalties.
Save your summary
A printable breakdown with due dates and a checklist of write-offs you may have missed.
We use it to send your summary and occasional tips for people who work for themselves. Unsubscribe anytime.
Estimates only. For anything binding, work with a CPA — especially for state nuances and multi-entity setups.
The things solo pros ask us most.
Yes. On the first screen, pick 'S-corp (I'm the only owner)' and we'll ask for your salary, withholding, and employer payroll taxes on top of the usual questions. Partnerships and multi-owner LLCs aren't supported yet — talk to a CPA for those.
Ordinary and necessary costs of running your business: software, marketing, home office, business miles, education, professional services, meals (50%), and more. The wizard shows a categorized checklist with plain-English hints.
It's a good ballpark. We use each state's top rate for 2025 as a flat approximation. Your actual state return uses brackets and credits we don't model.
No — it's an educational estimator. Use the number as a directional target and confirm with a licensed CPA or Enrolled Agent before making decisions.
Meet The Blueprint — the rest of running your business.
This estimator handles the tax piece. The Blueprint handles everything else a solo pro juggles — cashflow you can see coming, pricing that actually pays, and a real owner's paycheck instead of whatever's left over.