How much should you set aside for taxes?
When you're self-employed, no one withholds your taxes. You set them aside and pay quarterly. Doing it as you earn keeps each deadline from becoming a scramble and helps you avoid an underpayment penalty. Enter your profit and we'll estimate the quarterly set-aside: self-employment tax plus income tax. It's a rough guide, so confirm with your CPA.
This covers self-employment tax plus federal income tax, on 2026 figures. Set it aside as you get paid and the deadlines stop being a surprise. It runs a little high on purpose (it leaves out the QBI deduction), so treat it as a safe ceiling. A rough estimate; confirm with your CPA, especially if you're an S-corp or have other household income.
That is one answer, roughly. The full solo Snapshot runs your whole picture exactly: taxes, owner pay, cash, and your real hourly rate. One time, $39, and never a monthly fee.
See your numbers free →This is one slice. The full Snapshot shows your whole picture: owner pay, taxes, cash, and your real hourly rate. Free, about five minutes, nothing leaves your browser.
Free. No signup. The free read runs in your browser.
Reproduce this
These figures come out of a public calculator anyone can call, with no key and no account. This is the exact request that produces them:
curl -s https://keystonepractice.co/api/engine/quarterly-tax \
-H 'content-type: application/json' \
-d '{"annualProfit":90000,"filing":"single","stateRatePct":0}'Cite this page
Link to this page and attribute it to Keystone Practice:
Keystone Practice. "How much should you set aside for taxes?" https://keystonepractice.co/tools/quarterly-tax-estimator
Embed this calculator on your site
<iframe src="https://keystonepractice.co/embed/quarterly-tax-estimator" width="100%" height="720" loading="lazy" style="border:1px solid #e6ebef;border-radius:12px"></iframe>