Calc365

All calculators

Fourteen calculators are ready to use: eight covering United States tax for 2026, and six covering mortgages, loans, saving, and debt. Others are listed as in development — they stay unpublished until the figures they depend on can be traced to an official source.

Individual taxes

Federal returns, refunds, and deductions for individuals and families.

Federal Income Tax Calculator Estimate your federal tax, effective and marginal rates, and whether you land on a refund or a balance due. Tax year 2026
Tax Refund Calculator A refund-focused view of the federal return. In development
Standard vs. Itemized Deduction Blocked on confirmation of the 2026 SALT deduction cap. In development

Paycheck and payroll

What lands in your bank account, and what an employer actually pays.

Take-Home Pay Calculator See what is left of a paycheck after federal tax, Social Security, Medicare, benefits, and retirement contributions. Tax year 2026 Payroll Tax Calculator Split FICA between the employee and the employer, and add FUTA to see the full cost of employing someone. Tax year 2026

Investment taxes

Capital gains, dividends, and the tax on net investment income.

Capital Gains Tax Calculator Compare short-term and long-term treatment, apply losses, add NIIT, and see after-tax proceeds. Tax year 2026

Business and self-employment

Schedule C profit, self-employment tax, and quarterly payments.

Self-Employment Tax Calculator Estimate Schedule SE tax on business profit, the deductible half, and what to set aside each quarter. Tax year 2026
Quarterly Estimated Tax Calculator Form 1040-ES payment sizing as a standalone tool. In development

Sales and local taxes

Sales tax at the register, and state and local income tax.

Sales Tax Calculator Add sales tax to a price, back it out of a tax-inclusive total, or work out the rate you were actually charged. Rate supplied by you
State Income Tax Calculator Awaiting confirmation of 2026 rate schedules from each state revenue department. In development

Home and property

What a mortgage actually costs each month, and over its life.

Mortgage Calculator Estimate a full monthly payment including property tax, insurance, HOA dues, and mortgage insurance. Ready to use
Property Tax Calculator Requires county-level millage rates, which are not yet sourced. In development

Loans and borrowing

Payments, total interest, and amortization on money you borrow.

Loan Calculator Payment and amortization for any fixed-rate loan, and what paying extra would save. Ready to use Auto Loan Calculator Car payment with sales tax, fees, a down payment, and a trade-in all accounted for. Ready to use

Saving and investing

How money grows over time, with and without regular contributions.

Compound Interest Calculator What a single deposit grows to, and how much compounding adds over simple interest. Ready to use Investment Calculator Project regular investing, split between what you contribute and what growth adds. Ready to use

Debt payoff

How long a balance takes to clear, and what the interest costs.

Credit Card Payoff Calculator Time and total interest to clear a card balance, and what paying more each month changes. Ready to use

Estate and retirement

Longer-horizon planning tools.

Estate Tax Calculator Federal estate tax against the $15,000,000 exclusion for 2026, with deductions, lifetime gifts, and portability. Ready to use Gift Tax Calculator What you can give before anything is reportable, and what a larger gift takes off the lifetime exclusion. Ready to use
Property Tax Calculator Requires county-level millage rates, which are not yet sourced. In development
401(k) Tax Savings Calculator Requires confirmed 2026 contribution limits. In development
Roth vs. Traditional IRA Calculator Requires confirmed 2026 contribution and phaseout limits. In development

Why some calculators are not published. A calculator that produces a confident-looking number from an unverified rate is worse than no calculator at all. Each tool listed as in development is waiting on figures we can trace to an official IRS, SSA, or state revenue department publication. See our methodology for how that verification works.