Blended Tax Rate Calculator
Saw a "blended tax rate" in TurboTax and wondered what it means? It is your effective tax rate — the real percentage of your taxable income that goes to the IRS, not your scary-looking top bracket. Enter your income and filing status to see yours using 2026 tax-year brackets.
Last updated:
Free Blended Tax Rate Excel Template
A ready-made bracket worksheet: enter how much of your taxable income fell in each bracket and it returns your effective rate beside your top marginal rate. Includes blended interest and blended hourly sheets too.
How your blended tax rate is calculated
The US tax system is progressive: each slice of your income is taxed at its own tier rate, and only the top slice is taxed at your marginal bracket. Your blended rate is simply:
Example: a single filer with $100,000 of taxable income in 2026 pays 10% on the first $12,400, 12% up to $50,400, and 22% on the rest — a total of $16,712. That is a blended rate of 16.71%, even though the filer sits in the 22% marginal bracket.
Blended rate vs. marginal rate at a glance
| Taxable income (single, 2026) | Marginal bracket | Approx. blended federal rate |
|---|---|---|
| $50,000 | 12% | ~11.5% |
| $100,000 | 22% | ~16.7% |
| $200,000 | 24% | ~20.3% |
| $400,000 | 35% | ~27.2% |
The gap between the two numbers is why a raise never costs you money: only the dollars above each threshold are taxed at the higher rate.
Municipal bonds: the blended rate that decides if a muni is worth it
Municipal bond interest is exempt from federal tax, and often from your state's tax too if you buy in-state. That exemption means a muni's headline yield is not comparable to a corporate bond's. To compare them you convert the muni to its tax-equivalent yield — and the rate you divide by is your blended federal-plus-state marginal rate:
A 3.50% muni looks weak next to a 4.75% corporate bond. But for an investor at a 30% blended marginal rate, 3.50% ÷ 0.70 = a 5.00% tax-equivalent yield — the muni wins. Note that this uses your marginal rate, not the blended effective rate the calculator above reports: the question is what tax the next dollar of bond interest would attract, not what you averaged across every bracket.
Blending a portfolio of munis
A portfolio is where this gets misread, because in-state and out-of-state holdings are not taxed the same way. Weight each holding by its balance — the same weighted average behind every calculator on this site — but apply each one's own tax treatment first. Take $100,000 at a 24% federal and 6% state marginal rate:
| Holding | Balance | Yield | Tax treatment | After-tax yield |
|---|---|---|---|---|
| In-state GO bonds | $60,000 | 3.20% | Federal + state exempt | 3.20% |
| Out-of-state revenue bonds | $40,000 | 4.10% | Federal exempt, state taxable | 3.85% |
| Blended | $100,000 | 3.56% | — | 3.46% |
- In-state: $60,000 × 3.20% = $1,920, untaxed.
- Out-of-state: $40,000 × 4.10% = $1,640, less 6% state tax = $1,541.60.
- Blended after-tax yield: $3,461.60 ÷ $100,000 = 3.46%.
- Blended tax-equivalent yield: 3.46% ÷ (1 − 0.30) = 4.94%.
So the portfolio is worth 4.94% against taxable alternatives, even though its nominal blended yield is only 3.56%. Note the ordering trap: averaging the two yields first and then grossing up gives 3.56% ÷ 0.70 = 5.09%, which overstates the portfolio by 15 basis points because it silently exempts the out-of-state bond from the state tax it actually pays. Apply each holding's tax treatment first, then blend.
Two things the tax-equivalent yield does not capture
- Muni interest still counts in two formulas. Tax-exempt interest is added back when working out how much of your Social Security is taxable (26 U.S.C. § 86(b)(2)(B)), and it is added to AGI for Medicare IRMAA premium surcharges. A muni can raise those two costs while paying no income tax itself.
- State tax deductibility shifts the divisor. The 30% above treats federal and state as simply additive, which is right when you take the standard deduction or your SALT deduction is already capped. If you itemize with room under the cap, the state tax is federally deductible and your true combined marginal rate is f + s × (1 − f) — 28.56%, not 30% — which lowers the tax-equivalent yield slightly.
High earners: add the 3.8% net investment income tax
This one moves the answer more than the ordering trap above, and it is the easiest to leave out. Taxable interest is subject to the 3.8% net investment income tax once your modified AGI passes $200,000 single or $250,000 married filing jointly — thresholds that are not indexed for inflation — but municipal bond interest is excluded from net investment income. So the corporate bond you are comparing against loses another 3.8% that the muni does not.
That belongs in the divisor. Taking the same portfolio at a 30% blended marginal rate, a filer over the NIIT threshold is really comparing at 33.8%: 3.46% ÷ (1 − 0.338) = a 5.23% tax-equivalent yield rather than 4.94% — 29 basis points, roughly double the error from blending in the wrong order. Leaving NIIT out always understates the muni, and it does so for exactly the high-income investors most likely to be holding one.
Learn more about blended tax rates
- What is a blended tax rate? — the plain-English definition and why it's lower than your bracket.
- Effective vs marginal vs blended tax rate — which number to use for a raise, overtime, or budgeting.
- How to calculate a blended tax rate — the step-by-step math, tier by tier.
- Blended state and federal tax rate — combine both into your true burden.
- Blended tax rate for an LLC or S-corp — business income with self-employment tax.
- Blended tax rate on a bonus or RSUs — why withholding isn't your real rate.
- Why is my blended tax rate so high? — the TurboTax number explained.
- Shift differential calculator — what overtime across two shift rates is worth before tax.
Frequently asked questions
What is a blended tax rate?
A blended tax rate — also called your effective tax rate — is the single average percentage of your taxable income that you actually pay in tax. Because the US uses progressive brackets, your income is taxed in tiers, and the blended rate is the weighted average of all the tiers you pass through.
Why does TurboTax show me a blended tax rate?
TurboTax displays a blended tax rate on its summary screen to show what percentage of your taxable income went to federal tax overall. It is calculated as total tax divided by taxable income, and it is almost always lower than your marginal bracket.
Why is my blended tax rate so high?
The most common reasons are additional income that stacked on top of your salary (bonuses, capital gains, side income), losing deductions or credits you had the year before, or self-employment tax being included in the figure. Comparing total tax to taxable income rather than gross income also makes the percentage look higher.
Is my blended tax rate the same as my tax bracket?
No. Your tax bracket (marginal rate) only applies to your last dollar of income. Your blended rate averages every tier — someone in the 24% bracket typically has a blended federal rate around 17–20%.
How do I calculate my blended federal and state tax rate?
Add your federal tax and state tax together, then divide by your taxable income. This calculator does it for you when you enter an optional state rate — useful for comparing take-home pay across states.
How do you calculate a blended rate on municipal bonds?
For a single muni, divide the tax-free yield by (1 minus your blended federal-plus-state marginal rate) to get the tax-equivalent yield: a 3.50% muni at a 30% blended rate is worth 5.00% taxable. For a portfolio, apply each holding's own tax treatment first and then take the weighted average — in-state bonds are usually exempt from both federal and state tax, while out-of-state bonds are federal-exempt but state-taxable. Blending the yields before taxing them overstates the result, because it silently exempts the out-of-state bonds from the state tax they actually pay.
Do I use my blended rate or my marginal rate for a tax-equivalent yield?
Your marginal rate. The blended (effective) rate answers what you paid on average across all your income; the tax-equivalent yield asks what tax the next dollar of bond interest would attract, which is the marginal rate by definition. Using the blended effective rate here understates the value of the tax exemption and can make a municipal bond look worse than a taxable bond when it is actually better.
Does the 3.8% net investment income tax change a municipal bond's tax-equivalent yield?
Yes, and leaving it out always understates the muni. Taxable interest is subject to the 3.8% net investment income tax under Section 1411 once modified AGI passes $200,000 single or $250,000 married filing jointly, but municipal bond interest is excluded from net investment income. So a filer over that threshold at a 30% blended federal-plus-state marginal rate is really comparing at 33.8%: a portfolio yielding 3.46% after tax is worth 3.46% divided by (1 minus 0.338) = 5.23% taxable, not 4.94%. That 29 basis points is roughly double the error from blending yields in the wrong order.
Tax year 2026. Brackets are the federal rates published by the IRS in Rev. Proc. 2025-32, which reflects the rate structure made permanent by the One Big Beautiful Bill Act. Figures last verified 29 July 2026. This calculator takes taxable income (line 15 of Form 1040) and treats any state rate you enter as flat. It does not apply the standard deduction, and does not include self-employment tax, capital-gains rates, AMT, credits, or local taxes. The municipal-bond section uses marginal rates rather than the effective rate this calculator reports, and its yields and tax rates are illustrative; it does not address AMT on private-activity bonds, de minimis market discount, or capital gains on a bond sold before maturity. It is not tax advice — consult a qualified tax professional for filing decisions.
High earner? Check your Medicare surtax too
The 0.9% Additional Medicare Tax creates its own blended rate on wages above the threshold. See what you actually pay.