How sharper.tax Analyzes Your Return
A walkthrough of the data pipeline and benchmark logic behind your analysis dashboard.
This guide explains how the sharper.tax analysis page turns your uploaded return into benchmarks, scores, and strategy recommendations.
Key Takeaways
- We analyze strategies first, then benchmark your tax rate so the score uses real strategy counts.
- Benchmarks compare your effective tax rate to peers with similar income.
- We separate federal income tax, payroll taxes, and state/local taxes for clarity.
Step 1: Strategy Analysis Comes First
We evaluate every active strategy against your return to see what is available, already used, or not applicable. This happens before benchmarking so the tax efficiency score includes real strategy counts. Strategies range from retirement contributions and Roth conversions to tax-loss harvesting and charitable bunching. For a deeper look at how we calculate your tax efficiency score, see our tax efficiency score explained guide.
Key Inputs We Read
- Form 1040 totals (income, adjustments, deductions, tax, credits) — see how to read Form 1040
- W-2 / 1099 income and withholding
- Schedule C / E / D when applicable — learn more about Schedule C deductions
- K-1 income for partnerships and S-corps — see our Schedule K-1 explained guide
Step 2: Income and Tax Rate Benchmarking
We compute:
- Total income
- Effective tax rate — the percentage of your income that actually goes to taxes
- Percentile rank among similar incomes
That percentile feeds the tax efficiency score. More detail is in income tax rate benchmarking. To understand the difference between your effective rate and your marginal tax rate, see our marginal vs. effective tax rates guide.
Step 3: Income Distribution Context
We place your income on the U.S. income distribution to show where you sit nationally. See the full data story in US income distribution benchmarks.
Step 4: Tax Breakdown
We split taxes into three buckets:
- Federal income tax — driven by your tax bracket
- Payroll taxes (Social Security and Medicare)
- State and local taxes — see our state income tax guide
That separation helps explain why two people with similar income can have very different effective rates. Read more in federal vs. payroll vs. state and local taxes.
Step 5: Action Plan
We surface the most impactful strategies first, then show supporting steps, deadlines, and required documents. Your action plan is designed to be shareable and collaborative. For a walkthrough of how to interpret your action plan, see our tax action plan guide.
Ready to see it? Explore tax strategies
Sources
The information above is educational and not tax advice.