Free calculators for startup founders
The numbers founders get wrong most often: Delaware and California franchise tax, how SAFEs convert, and what a paycheck really costs. Free, no sign-up, with the rules explained and sourced.
Delaware franchise tax calculator
Compare the Authorized Shares and Assumed Par Value Capital methods and see which gives your Delaware corporation the lower franchise tax.
California franchise tax calculator
Estimate a C corporation's California franchise tax on Form 100, including the $800 minimum, the first-year exemption and the 30/40/0/30 estimated payments.
SAFE conversion calculator
Model how post-money SAFEs convert in a priced round: conversion price, shares and ownership for each SAFE, and founder dilution.
Paycheck calculator
Calculate an employee's federal and state withholding, Social Security, Medicare, employer taxes and net pay, using the same engine ClearBooks payroll runs on.
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Keep the numbers in your books
ClearBooks tracks these filings from your ledger: franchise tax deadlines, the cap table and SAFEs, payroll and Form 1120. Free to start.