Research & Data
We publish the data sources and logic behind sharper.tax benchmarks.
Income Distribution Benchmarks
We compare your total income to U.S. household income distributions to estimate your percentile rank and cohort benchmarks. The current chart uses 2023 household income data.
Explore the benchmarks →Taxable Income Calculator
Estimate taxable income for 2025-2026 by applying adjustments and the larger of standard or itemized deductions.
Use the taxable income calculator →Federal Income Tax Calculator
Apply 2025 and 2026 federal tax brackets to your income to estimate your tax bill, marginal rate, and effective rate with a bracket-by-bracket breakdown.
Use the income tax calculator →Pay Stub Calculator
Reconcile gross pay, deductions, and withholding to understand why your take-home pay changed from one check to the next.
Use the pay stub calculator →Tax Rate Benchmarking
We compare your effective tax rate to peers with similar income to surface optimization opportunities. The tax score blends percentile ranking with strategy utilization.
How the tax score works →Federal Spending Allocation
We combine federal spending data with payroll tax earmarks to estimate where your tax dollars go. This powers the interactive spending treemap.
See the spending breakdown →