Free Calculators for Connecticut Small-Business Owners
Quick, no-signup tools built on official 2026 IRS, Social Security and Connecticut figures. Run the numbers, then let us set it up for you.
LLC vs. S-Corp Tax SavingsCompare self-employment tax with S-Corp payroll taxes and extra costs to see if the election pays off.Open calculator →
Quarterly Estimated TaxEstimate your 2026 federal and Connecticut quarterly payments, including self-employment tax and due dates.Open calculator →
CT Startup Cost CalculatorAdd up CT filing fees, the annual report, an EIN, registered agent and software. See one-time vs. monthly totals.Open calculator →
Employee Payroll CostSee the true cost of a hire in CT: employer FICA, FUTA, CT unemployment, workers’ comp and payroll software.Open calculator →
Self-Employed Health Insurance EstimatorRough estimate of your Access Health CT premium tax credit and the self-employed health insurance deduction.Open calculator →
Each calculator lists the sources it uses and was last updated in October 2026. They are built by Andrew Nocera, Tax Preparer & Small-Business Finance Consultant at Enhance Finance in Danbury, CT.
Estimates for education only, not tax, legal, or insurance advice.
Want this set up for you? See Business Launch Setup