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Tax Season Tools, Calculators and Research

Free calculators, original research, price data and state guides to help you file for less.

Updated October 2026.

Tax filing cost studyOriginal research: what seven tax services cost across four tax situations, with charts and a CSV download.2025 tax year · dataRead the study →Tax Software Price TrackerFree tiers, Deluxe, Premium and Self-Employed prices and state fees side by side.2025 tax yearOpen the tracker →Filing cost calculatorEstimate federal plus state cost by situation across providers.Simple to self-employedUse the calculator →Tax refund estimatorEstimate your 2026 federal tax and refund with IRS brackets.2026 tax yearEstimate your refund →Self-employment tax calculatorSocial Security and Medicare tax on freelance income.2026 tax yearCalculate →Quarterly estimated tax calculatorQuarterly payments for freelancers, with safe harbor.2027 paymentsCalculate →Price history2025 vs 2026 tax year list prices as providers announce them.Updated each seasonSee price changes →State tax guidesAll 50 states and DC: rates, deadlines and state e-file fees.51 guidesFind your state →Tax glossary50 tax terms in plain English.US federalBrowse terms →Free widgetsEmbed a Tax Day countdown or a price table on your site.Free to embedGet the code →

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The refund brief

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