Business structure calculators (2026)

Each one uses 2026 federal figures and the published rates and fees of the state you pick.

Business structure switching calculatorAny structure to any other, in any state: the yearly saving and the break-even profit.
S corp tax savings calculatorWhat an S corp election saves an LLC or sole proprietor in your state, after payroll costs.
Self-employment tax calculatorSocial Security and Medicare on business profit for 2026, and the half you deduct.
S corp payroll cost calculatorEmployer and employee payroll taxes on an owner salary, by state.
C corp double tax calculatorCorporate tax plus dividend tax against an S corp, by state.
Take-home pay calculator by business structureWhat you keep from your profit as a sole proprietor, LLC, S corp or C corp, by state.
S corp salary calculatorThe yearly cost of an S corp at each owner salary, against a plain LLC, in your state.
Quarterly estimated tax calculatorThe four 2026 estimated tax payments for a self-employed owner, with the safe harbors.
QBI deduction calculatorThe 20% qualified business income deduction, with the wage limit and the service-business rule.
LLC cost calculatorWhat forming and keeping an LLC costs in your state: the first year and five years.
LLC cost by stateFormation fee, yearly report and LLC taxes in every state.
Is an S corp worth it?The saving at each profit level, state by state.

Calculators for one state