Free tax calculators for 2026
Updated for 2026 tax law and powered by the same engine we use in client planning. Free, ungated, no email required.
S Corp Savings Calculator
Enter your profit and a reasonable salary to see whether an S corp election would lower your total tax in 2026, after the cost of running payroll and filing a separate return.
Open calculatorRSU Tax Withholding Calculator
Employers withhold a flat 22% federal tax on vesting RSUs, but for most tech professionals the shares are taxed at 32%, 35% or 37%. Enter your pay and this year's vests to see the gap and plan for it now.
Open calculatorQuarterly Estimated Tax Calculator
Find the smallest quarterly payment that keeps you clear of underpayment penalties in 2026, based on this year's projected tax or last year's actual tax.
Open calculatorSolo 401(k) & SEP‑IRA Calculator
Retirement contributions are often the largest deduction available to a profitable owner. See your 2026 room in a Solo 401(k) and a SEP-IRA side by side.
Open calculatorRental Property Depreciation Calculator
Depreciation is the deduction that makes rental real estate so tax-efficient. See what your property generates each year and what it's worth at your tax bracket.
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