Are the starting amounts verified United States prices or legal rules?

No. Numeric defaults are illustrative unless an input or dated reference explicitly identifies a researched component. Currency is USD; local quotes, eligibility and unsupported rules must be entered and verified separately.

What must I check before relying on the result?

Planning calculation, not a tax return, benefit decision, credit approval or legal opinion. No eligibility is inferred from a numeric result. Only the stated tax year and expressly supported rule components are included. Entered amounts require independent verification.

Can I compare or share different assumptions?

The original calculator retains its project controls. Use the separate scenario-link control for the additional model; its inputs are not silently written into an older saved project.

Finance

United States versionFormula-based · Runs in your browser

Income Tax Calculator

Estimate 2026 U.S. federal income tax using the standard deduction and progressive brackets.

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Saved locally, explained clearly

Drafts, calculations, scenarios, and workflow progress stay in this browser unless you export them.

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Do not save this sessionPause new drafts, history, counters and project saves in this tab. Existing records, browser history and downloaded files are not deleted.

Calculation steps

Follow what happened from the selected formula to the displayed answer.

Show substituted values and intermediate working

Calculate current inputs to see the working.

1
Formula selected
The calculator uses the following formula or method.
2026 taxable income = max(gross income − standard deduction, 0); federal tax is the sum of tax charged within each progressive bracket.
Federal estimate only. Credits, itemized deductions, additional deductions, self-employment tax, and state tax are excluded.
2
Values entered
Your values are placed into the calculation.
Enter values to see what is used in this step.
3
Result calculated
The formula or method produces the following result values.
Results will appear after a successful calculation.
4
Answer formatted
Displayed values are rounded and formatted using each output’s configured precision.

Scenario comparison

Save working scenarios, then select two or three to compare. Formula versions and inputs remain visible.

Scenario name

No scenarios saved for this calculator yet.

Recent calculations

Successful calculations are retained locally according to your privacy settings.

No local history for this calculator yet.

Data and privacy

Additional planning scenario: Income Tax Planning Calculator

The original calculator and its saved-project input names remain unchanged above. This additional model is independent: use its own share-link button, not the original calculator’s project or export controls.

Estimate ordinary annual employment income tax with dated country rules, separating deductions, basic credits, Canadian provincial calculations, Irish USC and separately entered other local tax.

Formula: Dated national/provincial marginal tax − supported automatic and entered credits + entered other local tax; Irish USC is separate.

Preparing saved example…

Inputs

Enter the values you know. Optional fields may be left empty.

Separate scenario — use its own link

Annual gross incomeRequired

USD

Additional deductible amount (not a tax credit)Required

USD

Additional verified nonrefundable national creditsRequired

USD

US federal filing assumptionRequired

Other state/local income tax not automatically includedRequired

USD

Result

Updates as valid inputs change.

Calculated locally

Illustrative defaults are not local quotes or verified legal rules. Dated reference components and user-entered assumptions are explicitly distinguished. Professional review is pending.

Total modeled taxes

—

Supported basic national credits before final tax limitations

—

Canadian provincial/territorial tax (zero outside Canada)

—

Taxable income used

—

National bracket tax before credits

—

Income tax after supported credits and local/provincial tax

—

Irish USC (zero outside Ireland)

—

Gross income less modeled taxes

—

Modeled effective rate

—

The main page’s project/export controls apply to the original calculator, not this separate scenario. A scenario link includes its input values.

Scope and limitations

Planning calculation, not a tax return, benefit decision, credit approval or legal opinion. No eligibility is inferred from a numeric result.
Only the stated tax year and expressly supported rule components are included. Entered amounts require independent verification.

Reference scope

US income authority — retrieved 2026-09-24. Use only the expressly supported schedule components; this link does not validate unrelated taxes.

How it works

Estimate 2026 U.S. federal income tax using the entered gross income, filing status, standard deduction, and progressive tax brackets.

Input query strings and outputs

Use an input name in this page’s URL as ?name=value, and join additional inputs with &. Portable shared links may instead use the compact ?ac= state parameter.

Input query strings

?income= Annual Income ($)

Number · Optional · Default: 75,000
?filingStatus= Filing Status

Text · Optional · Default: single

Outputs

result Result

Text · Primary output

result contains the calculator’s complete rendered result area, including its visible result cards, tables, charts, and messages.

Formula

Taxable income = max(gross income − standard deduction, 0)
Tax is calculated one bracket at a time.
Effective rate = estimated federal income tax ÷ gross income

Included

2026 single and married-filing-jointly standard deductions.
2026 ordinary-income brackets for those two filing statuses.

Not included

Credits, itemized deductions, qualified business income, capital gains, self-employment tax, additional deductions, state tax, local tax, and many special rules are excluded.

Use

Treat the result as a planning estimate, not a filed return or tax advice. Confirm current rules and your facts with official guidance or a qualified tax professional.

Sources

IRS 2026 tax inflation adjustments

Limitations

Tax estimate only; not tax advice.
Federal estimate only. Credits, itemized deductions, additional deductions, self-employment tax, and state tax are excluded.
Estimates use the rates, timing, and assumptions entered. Fees, taxes, lender rules, and future changes are included only where explicitly shown.

Saved locally, explained clearly

Calculation steps

Formula selected

Values entered

Result calculated

Answer formatted

Scenario comparison

Recent calculations

Inputs

Result

Table

Scope and limitations

Reference scope

How it works

Input query strings and outputs

Input query strings

Outputs

Formula

Included

Not included

Use

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