QuarterlyKynth OS

The freelancer tax desk — deductions found, estimates computed, deadlines tracked.

Quarterly connects to your bank feed and books, finds the deductions you're leaving on the table, computes each quarterly estimate with the math laid out, and walks you to every deadline with the payment amount ready.

Free to start — no credit card.

quarterly · Q2 estimate
Q2 estimateDue soon
$3,120.00due to the IRS
  1. 1Income to date $48,200, minus $9,340 of confirmed deductions → $38,860 net.
  2. 2Self-employment tax (~15.3%) plus federal income tax at your bracket.
  3. 3Spread across the remaining quarters, Q2 lands at $3,120 — a ~24% effective rate.

This is the real estimate card — Quarterly builds the number from your income and deductions and explains every line of the math, so quarterly taxes stop being a guess.

Every transaction categorized for deductibility

Quarterly reads each charge and tells you if it's deductible, partial, or personal — the Schedule C line it maps to, the percentage, and why — so the deductions you were leaving on the table stop slipping through.

Blue Bottle Coffee · $46.50Partial · 50%
Category
Business meal
Deductible
$23.25
Tax saved
$6.98

A client coffee counts as a business meal — the IRS allows 50%. Half of the charge is deductible; Quarterly explains why so you can confirm it in one tap.

Walked to every deadline, payment ready

Quarterly tracks each filing and payment deadline, keeps the amount ready, and drafts a plain-English reminder to your own inbox — a nudge that walks you to the deadline instead of a surprise.

Q2 federal estimated payment· 12 days out · $3,120.00 ready
Drafted by Claude

Your Q2 payment is due in 12 days

Stop dreading quarterly taxes.

The demo is live — free, no card. See a client coffee categorized at 50%, a quarterly estimate built line by line, and the deadline reminder already drafted.

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