Tax & Accounting
Income, sales, property and capital gains tax, plus bookkeeping, depreciation and tax planning.
Tax owed, tax saved, and the books behind both. Federal and state income tax, marginal versus effective rate, take-home pay, sales tax forwards and backwards, property tax and assessment appeals, and capital gains including holding-period effects.
Self-employment tax, quarterly estimated payments and safe-harbour thresholds are covered for anyone invoicing rather than being paid.
Tax planning covers deduction bunching, retirement-contribution impact and bracket management; accounting covers depreciation schedules, accruals and common financial ratios.
35 calculators in 3 sections.
Matches are ranked by relevance. Use CtrlK anytime to search the full site.
Income, Sales & Property Tax
Income tax and take-home pay, sales tax, property tax and capital gains.
Sales Tax Calculator
Calculate sales tax on any purchase. Find the total price including tax, or reverse-calculate the pre-tax price from a total.
Tax Bracket Calculator
Find your federal tax bracket, marginal rate, and effective tax rate. See how much you owe at each bracket level.
Property Tax Calculator
Estimate your annual and monthly property tax based on home value, assessment rate, tax rate, and exemptions. Understand your effective property tax rate.
W-4 Withholding Calculator
Estimate your federal income tax withholding based on salary, filing status, and allowances. See your per-paycheck, monthly, and annual withholding amounts.
Tax Refund Calculator
Estimate your tax refund or amount owed. Calculate based on income, filing status, withholdings, deductions, and credits.
Comprehensive Income Calculator
Federal + state taxes, FICA, deductions, take-home pay
Tax Planner Calculator
Federal & state tax, capital gains, SE tax, refund estimate
VAT Calculator
Calculate Value Added Tax (VAT) for any amount. Add VAT to a net price or remove VAT from a gross price to find the tax-exclusive amount.
Marriage Tax Calculator
Calculate whether you'll face a marriage penalty or receive a marriage bonus based on your combined incomes. Uses 2026 US federal tax brackets.
Estate Tax Calculator
Estimate federal estate tax liability using the 2026 exemption of $15,000,000. Calculate taxable estate after deductions for spouse, charitable giving, and other expenses.
Income Tax Calculator
Estimate your federal income tax, FICA taxes, effective tax rate, and take-home pay based on your filing status and deductions.
Capital Gains Tax Calculator
Estimate your capital gains tax on investments, real estate, or other assets. Covers both short-term and long-term rates based on your income and filing status.
Self-Employment Tax Calculator
Calculate your self-employment tax including Social Security, Medicare, and quarterly estimated payments.
Quarterly Estimated Tax Calculator
Calculate quarterly estimated tax payments for freelancers and self-employed individuals. Includes both income tax and self-employment tax (15.3%).
Tax Planning
Bracket management, deduction timing and retirement-contribution impact.
Roth Conversion Calculator
Analyze the tax impact, break-even timeline, and long-term benefit of converting traditional IRA or 401(k) funds to a Roth IRA.
Section 179 Calculator
Calculate your maximum Section 179 deduction for business equipment purchases, including phase-out reductions, income limitations, and combined first-year write-off with bonus depreciation.
Bonus Depreciation Calculator
Calculate first-year bonus depreciation deductions under the TCJA phase-down schedule, combined with MACRS recovery for eligible asset purchases.
QBI Deduction Calculator
Calculate your Section 199A Qualified Business Income deduction with W-2 wage limits, UBIA property tests, and SSTB phase-out rules for 2024.
Charitable Deduction Optimizer Calculator
Compare annual giving vs. bunching donations into a Donor-Advised Fund to maximize your itemized deduction and tax savings over multiple years.
AMT Calculator
Calculate your Alternative Minimum Tax (AMT) liability based on income, SALT deductions, ISO stock option exercises, and filing status using current-year federal brackets and 2024 AMT exemption parameters.
State Tax Nexus Calculator
Determine if your business has economic nexus for sales tax or income tax in a state based on Wayfair thresholds, sales volume, transactions, and factor-presence standards.
International Tax Calculator
Calculate Foreign Tax Credit (FTC) limitations and GILTI inclusions for US taxpayers with foreign-source income.
Tax Withholding Calculator
Estimate whether your W-4 withholding will result in a refund or balance due, and get per-paycheck adjustment suggestions using 2026 federal brackets.
Estate Freeze Calculator
Estimate estate tax savings from an intentionally defective grantor trust (IDGT) estate freeze. Compare wealth transfer with and without freezing asset values.
Tax-Advantaged Order
Rule-of-thumb contribution priority from match % and HSA eligibility (educational).
Bookkeeping & Accounting
Depreciation schedules, accruals, and standard financial ratios.
Accounts Receivable Aging Calculator
Analyze AR aging buckets and calculate days sales outstanding (DSO).
Break-Even Units Calculator
Calculate the number of units needed to cover fixed and variable costs.
Cash Conversion Cycle Calculator
Calculate the cash conversion cycle: DIO + DSO - DPO.
Contribution Margin Calculator
Calculate per-unit contribution margin and ratio analysis for pricing decisions.
Double Declining Balance Calculator
Calculate accelerated depreciation using the double declining balance method.
Financial Ratio Dashboard
Calculate key liquidity, profitability, and leverage ratios from financial statements.
Lease Accounting (ASC 842) Calculator
Calculate right-of-use asset and lease liability under ASC 842.
MACRS Depreciation Calculator
Calculate MACRS depreciation schedules for business assets.
Straight-Line Depreciation Calculator
Calculate annual depreciation evenly over an asset's useful life.
Tax Provision Calculator
Calculate quarterly tax provision with current and deferred components.