For US freelancers and contractors
Know what to move to tax savings after every payment.
WithholdingHelper turns irregular freelance income into one clear set-aside number, then keeps a running quarterly estimate without bank linking or bookkeeping bloat.
Free calculator
$5,000 payment: set aside $1,631
Estimated 32.6% for a single filer in California.
Federal income tax$543
Self-employment tax$706
State tax estimate$382
Total set-aside$1,631
Per-payment clarity
Log a payment and see federal, state, and self-employment tax broken out immediately.
Quarterly estimates
See the next IRS due date, countdown, and estimated payment using your logged income.
CPA-ready export
Export payment history with calculated set-asides when filing season arrives.
No bank links. No invoice system. No spreadsheet maintenance.
The workflow is intentionally narrow: set up your profile, log each gross payment, move the recommended amount, and keep an eye on quarterly payments.
Built around safe fallbacks
The app runs locally with SQLite, credential auth, and guarded Stripe and email routes so missing production keys never crash the build.