Income Range for Your Effective Rate
Results
Visualization
The short answer
Your effective rate is total tax divided by total income; your marginal rate is the rate on your next dollar. They diverge a lot, and confusing them is the most common tax-planning mistake. A single filer at $125,178 has an effective rate of 15% but a marginal rate of 24% — meaning the next dollar earned is taxed at 24%, even though the average across all income is 15%.
The gap comes from the standard deduction and the low bottom brackets. The first $16,100 of income is untaxed (the 2026 standard deduction for a single filer), the next $12,400 is taxed at 10%, and so on. The average only climbs to 15% once enough income has pushed through several brackets.
How the reverse solve works
The tool searches income levels for the one where tax(income − standard deduction) / income equals your target rate, then scans outward to find the income band where the effective rate stays within half a percentage point of that target. Because the effective-rate curve rises steeply at low incomes and flattens as it approaches the top bracket, the band is narrow at low targets and wide at high ones.
Reference points for a single filer, 2026
| Target effective rate | Income | Within ±0.5pp | Tax at that point | Marginal rate |
|---|---|---|---|---|
| 10% | $73,583 | $71,000 – $76,000 | $7,358 | 22% |
| 12% | $88,300 | $85,000 – $92,000 | $10,596 | 22% |
| 15% | $125,178 | $118,000 – $132,000 | $18,777 | 24% |
| 22% | $283,583 | $274,000 – $294,000 | $62,388 | 35% |
| 24% | $335,143 | $321,000 – $351,000 | $80,434 | 35% |
Read the last two rows carefully: to average 22% you need to be earning enough that your marginal rate is 35%. Effective rates look low for a long way up the income scale because the bottom of the schedule is so lightly taxed.
What this tool covers — and what it does not
- Federal income tax only, using the standard deduction. No state or local tax, no FICA.
- No credits. The earned income credit, child tax credit, and education credits can push an effective rate well below anything on this curve, particularly at lower incomes.
- No capital gains or self-employment tax. Long-term gains are taxed at their own 0/15/20% schedule and net investment income tax may apply; self-employment income carries 15.3% SE tax. A household whose income is mostly gains or SE income will not sit on this curve at all.
- Standard deduction only. Itemising lowers taxable income further and shifts the curve down.
How to use the result
- Use the marginal rate for decisions — a deduction, a raise, a Roth conversion, or a deferral is all worth the marginal rate.
- Use the effective rate for comparison — "what share of my income went to federal tax", or to sanity-check a withholding estimate.
- Do not plan on hitting a target effective rate by adjusting income. Because the curve is flat, moving income by $10,000 near a 15% target barely changes the effective rate.
- Remember the curve is different for married filing jointly: the standard deduction and every bracket threshold are doubled, so a joint filer reaches the same effective rate at roughly twice the income.
Frequently asked questions
Why is my marginal rate so much higher than my effective rate?
Because the standard deduction and the lowest brackets shelter a large share of income. At a 15% effective rate for a single filer the marginal rate is already 24% — the average is dragged down by income taxed at 0%, 10% and 12%.
Why is the income band so narrow at some targets?
The effective-rate curve rises steeply at low incomes, so a half-percentage-point window covers few dollars. Higher up, the curve flattens and the same window spans a much wider income range.
Does this account for the standard deduction?
Yes — $16,100 for a single filer and $32,200 for a married couple filing jointly in 2026. Itemising instead would lower taxable income and lower the effective rate at every income level.
Does it include state tax or FICA?
No, federal income tax only. Add your state's rate and, for wages, 7.65% in Social Security and Medicare below the $184,500 wage base.
Can credits make my effective rate negative?
Yes. Refundable credits can produce a negative effective rate at lower incomes. This tool models no credits, so it will overstate the effective rate for anyone who qualifies for them.
Are these 2026 brackets?
Yes — IRS Rev. Proc. 2025-32. Figures as of 2026-08-09.
Sources
- IRS Rev. Proc. 2025-32 — 2026 inflation adjustments (brackets, standard deduction). Retrieved 2026-08-09.
- IRS Pub. 15 (Circular E), Employer's Tax Guide 2026 — Social Security wage base $184,500. Retrieved 2026-08-09.
- IRS Pub. 15-T (2026) — federal income tax withholding methods. Retrieved 2026-08-09.
- IRS Schedule A (Form 1040) — itemized deductions. Retrieved 2026-08-09.
Figures as of 2026-08-09. FiscTalk provides educational estimates only. This is not tax, legal, or financial advice — confirm any consequential figure with a licensed CPA, EA, or the IRS publication cited.