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W2 Tax Calculator

Estimate your 2026 tax refund or amount owed using W-2 box values, all 50 state tax brackets, and federal credits

Estimated Refund

$2,563

Effective Rate

14.2%

Federal Tax

$7,670

California Tax

$3,017

$

Your total taxable compensation for the year

$

Federal income tax your employer sent to IRS

$

State income tax withheld

Social Security (Box 4) and Medicare (Box 6) are auto-calculated from your wages.

$2,000 credit each

$500 credit each

$

Box 12, code D/E (max $23,500)

$

Box 12, code W (max $4,300 self / $8,550 family)

$

Max $7,000 (or $8,000 if 50+)

Estimated Refund

$2,563

You overpaid by $2,563 in income taxes

Effective Rate

14.2%

Marginal Rate

22%

Federal Tax

$7,670

10.2% rate

California Tax

$3,017

4.0% rate

Tax Calculation Breakdown

Gross Wages (Box 1)$75,000
Adjusted Gross Income (AGI)$75,000
−Standard deduction$16,100
Federal Taxable Income$58,900
Federal tax (before credits)$7,670
Federal Tax Owed$7,670
California State Tax$3,017
Total Income Tax$10,687
Total Income Tax Withheld$13,250
Refund$2,563
10%
$12,400
$1,240
12%
$38,000
$4,560
22%
$8,500
$1,870
Total Federal Tax$7,670
1.0%
$10,756
$108
2.0%
$14,743
$295
4.0%
$14,746
$590
6.0%
$15,621
$937
8.0%
$13,594
$1,088
Total California Tax$3,017

Withholding Breakdown

Federal Tax$9,500
State Tax$3,750
Social Security$4,650
Medicare$1,088
DeductionPer PaycheckMonthlyAnnual
Federal Tax$365$792$9,500
State Tax$144$313$3,750
Social Security$179$388$4,650
Medicare$42$91$1,088
Total$730$1,582$18,988
Take-Home$2,154$4,668$56,012

Frequently Asked Questions

Q

How do I calculate my tax refund from my W-2?

Subtract the standard deduction from Box 1 wages to get taxable income, apply 2026 progressive tax brackets, subtract credits (child tax credit, EITC), then compare the result to Box 2 (federal withheld). If you withheld more than you owe, the difference is your refund.

  • Step 1: Box 1 wages minus pre-tax deductions (401k, HSA) = AGI
  • Step 2: AGI minus standard deduction ($16,100 single / $32,200 married) = taxable income
  • Step 3: Apply 2026 federal brackets (10% to 37%) progressively
  • Step 4: Subtract child tax credit ($2,000/child) and EITC if eligible
  • Step 5: Compare final tax to Box 2 withheld — positive difference = refund
Filing Status2026 Standard DeductionCTC Phase-Out Starts
Single$16,100$200,000
Married Filing Jointly$32,200$400,000
Head of Household$24,150$200,000
Married Filing Separately$16,100$200,000
Q

What W-2 boxes do I need for this calculator?

You need five key boxes from your W-2 form: Box 1 (wages), Box 2 (federal income tax withheld), Box 4 (Social Security tax), Box 6 (Medicare tax), and Box 17 (state income tax withheld). Box 12 codes D/W show 401(k) and HSA pre-tax contributions.

  • Box 1: Total wages, tips, and compensation — your gross taxable income
  • Box 2: Federal income tax withheld — determines your refund or amount owed
  • Box 4: Social Security tax (6.2% of wages up to $176,100)
  • Box 6: Medicare tax (1.45% of all wages, no cap)
  • Box 12 code D: 401(k) contributions that reduce your AGI
  • Box 17: State income tax withheld — varies by state (0% in TX/FL to 13.3% in CA)
W-2 BoxWhat It Shows2026 Limits
Box 1Wages, tips, compensationNo cap
Box 2Federal income tax withheld10–37% of taxable income
Box 4Social Security tax6.2% up to $176,100
Box 6Medicare tax1.45% (no cap)
Box 12D401(k) contributionsMax $23,500
Box 17State income tax withheld0–13.3% by state
Q

What are the 2026 federal tax brackets?

The 2026 tax brackets under the One Big Beautiful Bill Act range from 10% to 37%. For single filers: 10% on income up to $12,400, 12% up to $50,400, 22% up to $105,700, 24% up to $201,775, 32% up to $256,225, 35% up to $640,600, and 37% above that.

  • Single 10% bracket: $0 – $12,400 (tax: $1,240)
  • Single 12% bracket: $12,400 – $50,400 (tax: $4,560)
  • Single 22% bracket: $50,400 – $105,700 (tax: $12,166)
  • Married 10% bracket: $0 – $24,800 (double the single thresholds)
  • Head of Household 10% bracket: $0 – $18,600 (between single and married)
RateSingleMarried Filing JointlyHead of Household
10%$0–$12,400$0–$24,800$0–$18,600
12%$12,400–$50,400$24,800–$100,800$18,600–$75,600
22%$50,400–$105,700$100,800–$211,400$75,600–$158,550
24%$105,700–$201,775$211,400–$403,550$158,550–$302,650
32%$201,775–$256,225$403,550–$512,450$302,650–$384,350
35%$256,225–$640,600$512,450–$768,700$384,350–$672,300
37%$640,600+$768,700+$672,300+
Q

What is the SALT deduction cap for 2026?

The state and local tax (SALT) deduction is capped at $40,400 for 2026 under the One Big Beautiful Bill Act, up from the previous $10,000 cap. This cap applies to the combined total of state income taxes, local taxes, and property taxes you can deduct when itemizing.

  • 2026 SALT cap: $40,400 (up from $10,000 in 2018–2025)
  • Includes state income tax + property tax + local taxes combined
  • Phase-out begins at $505,000 MAGI for single filers
  • Only applies if you itemize (standard deduction has no SALT limit)
  • High-tax states like CA, NY, NJ benefit most from the increased cap
Q

How does the Earned Income Tax Credit (EITC) work?

The EITC is a refundable tax credit for low-to-moderate income workers. For 2026, the maximum credit ranges from $649 (no children) to $8,046 (3+ children). Unlike other credits, the EITC can make your refund larger than your tax liability since it is fully refundable.

  • No children: max credit $649, income limit ~$19,500 (single)
  • 1 child: max credit $4,328, income limit ~$52,500 (single)
  • 2 children: max credit $7,152, income limit ~$59,500 (single)
  • 3+ children: max credit $8,046, income limit ~$63,400 (single)
  • Married filing jointly: income limits increase by ~$8,000
  • Not available for married filing separately
Q

Standard deduction vs itemized: which should I choose?

Choose whichever gives you the larger deduction. For 2026, the standard deduction is $16,100 (single) or $32,200 (married). Itemize only if your mortgage interest + SALT (capped at $40,400) + charitable + medical expenses exceed the standard deduction.

  • About 87% of taxpayers use the standard deduction
  • Standard deduction: $16,100 single, $32,200 married, $24,150 HoH
  • Age 65+: extra $2,050 (single) or $1,650 (married) standard deduction
  • Itemize if: mortgage interest + SALT + charity > standard deduction
  • This calculator auto-selects whichever method gives you the lower tax

Example Calculations

1Single Filer in California ($75,000 Wages)

Inputs

Box 1: Wages$75,000
Box 2: Federal Withheld$9,500
Box 17: State Withheld$3,750
Filing StatusSingle
StateCalifornia
Dependents0

Result

Estimated Refund$2,739
Federal Tax$7,849
California State Tax$2,662
Effective Rate14.0%

AGI = $75,000. Federal taxable income = $75,000 - $16,100 = $58,900. Federal tax from 2026 brackets: $12,400 x 10% + $38,000 x 12% + $8,500 x 22% = $7,850. CA tax on ($75,000 - $5,540) = $69,460 using CA progressive brackets = ~$2,662. Total liability $10,511 vs $13,250 withheld = ~$2,739 refund.

2Married Filing Jointly in Texas ($120,000 Wages, 2 Children)

Inputs

Box 1: Wages$120,000
Box 2: Federal Withheld$12,000
Box 17: State Withheld$0
Filing StatusMarried Filing Jointly
StateTexas (no income tax)
Children Under 172
401(k) Contributions$10,000

Result

Estimated Refund$5,306
Federal Tax$6,694
State Tax$0
Effective Rate5.6%

AGI = $120,000 - $10,000 (401k) = $110,000. Federal taxable income = $110,000 - $32,200 = $77,800. Federal tax: $24,800 x 10% + $53,000 x 12% = $8,840. Minus CTC: $8,840 - $4,000 = $4,840 (note: exact bracket calculation differs slightly). TX has no state tax. Total liability ~$6,694 vs $12,000 withheld = ~$5,306 refund.

Formulas Used

Federal Tax Liability (2026)

Federal Tax = Sum of (Taxable Income in Bracket × Rate) − Credits

Federal taxable income equals AGI minus deduction (standard or itemized). Tax is calculated progressively across 2026 brackets, then reduced by child tax credit and EITC.

Where:

AGI= Adjusted Gross Income = Box 1 wages minus pre-tax contributions (401k, HSA, IRA)
Standard Deduction= $16,100 (single), $32,200 (married), $24,150 (HoH) for 2026
Child Tax Credit= $2,000 per child under 17, phases out above $200k/$400k
EITC= Refundable credit up to $8,046 for low-to-moderate income workers

State Tax (Progressive Brackets)

State Tax = Sum of (State Taxable Income in Bracket × State Rate)

Most states use progressive brackets similar to federal. Nine states (AK, FL, NV, NH, SD, TN, TX, WA, WY) have no income tax. This calculator uses each state’s actual bracket structure.

Where:

State Taxable Income= AGI minus state-specific standard deduction (varies by state)
State Brackets= Progressive rates from 0% to 13.3% depending on state and income level

Refund or Amount Owed

Refund = (Box 2 Federal Withheld + Box 17 State Withheld) − (Federal Tax + State Tax)

Compares what was withheld from your paychecks to your calculated tax liability. A positive result means a refund; negative means you owe.

Where:

Federal Withheld= Box 2 on W-2: total federal income tax withheld during the year
State Withheld= Box 17 on W-2: total state income tax withheld during the year

Your W-2 Form and the 2026 Tax Landscape

1

Decoding Your W-2: The Boxes That Determine Your Refund

Box 1 and Box 2 are the two numbers that matter most for your refund. Box 1 shows total wages, tips, and compensation — your gross taxable income before deductions. Box 2 shows federal income tax withheld — what your employer already sent to the IRS on your behalf. The difference between your actual tax liability (calculated from Box 1) and Box 2 determines whether you receive a refund or owe money.

Box 12 codes reveal valuable pre-tax deductions that lower your AGI. Code D shows 401(k) contributions (max $23,500 for 2026), Code W shows HSA contributions (max $4,300 individual / $8,550 family), and Code E shows 403(b) contributions. These amounts were already excluded from Box 1, meaning your employer pre-calculated the AGI reduction. The tax refund calculator uses a simplified version if you do not have your W-2 handy.

Boxes 4 and 6 show Social Security ($10,918 max at the $176,100 wage base) and Medicare (1.45% of all wages, no cap) taxes withheld. These are separate from income tax and are not refundable through your tax return — they fund your future benefits. An additional 0.9% Medicare surtax applies to wages over $200,000 (single) or $250,000 (married).

W-2 BoxContents2026 Limits/Rates
Box 1Wages, tips, compensationNo cap
Box 2Federal income tax withheld10–37% progressive
Box 4Social Security tax withheld6.2% up to $176,100
Box 6Medicare tax withheld1.45% (no cap)
Box 12D401(k) contributionsMax $23,500 (+ $7,500 catch-up 50+)
Box 17State income tax withheld0–13.3% by state
2

2026 Federal Tax Brackets Under the One Big Beautiful Bill Act

$16,100 is the 2026 standard deduction for single filers, up from $14,600 in 2024, under the One Big Beautiful Bill Act’s inflation adjustments. Married filing jointly receives $32,200 and head of household gets $24,150. These increases mean roughly $300–$500 less in federal tax compared to 2024 for most filers.

The 2026 bracket thresholds expanded modestly: the 22% bracket for single filers now starts at $50,400 (up from $47,150 in 2024) and the 24% bracket starts at $105,700 (up from $100,525). For a single filer earning $75,000, the federal tax on taxable income of $58,900 ($75,000 minus $16,100 standard deduction) is approximately $7,849 across three brackets: 10% on the first $12,400, 12% on $12,400–$50,400, and 22% on $50,400–$58,900.

The most significant 2026 change is the SALT deduction cap increase from $10,000 to $40,400. Taxpayers in high-tax states like California, New York, and New Jersey can now deduct up to $40,400 in combined state income tax, property tax, and local taxes when itemizing. This makes itemizing worthwhile for many more taxpayers than under the prior $10,000 cap.

*2026 brackets under the One Big Beautiful Bill Act
RateSingleMarried Filing JointlyHead of Household
10%$0–$12,400$0–$24,800$0–$18,600
12%$12,400–$50,400$24,800–$100,800$18,600–$75,600
22%$50,400–$105,700$100,800–$211,400$75,600–$158,550
24%$105,700–$201,775$211,400–$403,550$158,550–$302,650
32%$201,775–$256,225$403,550–$512,450$302,650–$384,350
35%$256,225–$640,600$512,450–$768,700$384,350–$672,300
37%$640,600+$768,700+$672,300+
3

State Taxes: From 0% to 13.3%

9 states have no income tax at all: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. A worker earning $75,000 in Texas keeps 100% of their state income (though property taxes are higher to compensate). The same worker in California pays approximately $2,662 in state tax across nine progressive brackets topping out at 13.3%.

This calculator uses the actual progressive bracket structure for all 50 states plus DC, not simplified flat-rate estimates. Many states have their own standard deductions (California: $5,540 single) and bracket thresholds that differ from federal. Some states (Illinois, Michigan, Indiana) use a flat rate, while others (Hawaii, California, New Jersey) have 8–10+ brackets.

The new $40,400 SALT cap makes state tax deductions meaningful again for itemizers. A California filer paying $8,000 in state income tax plus $7,000 in property tax can now deduct the full $15,000 on their federal return (previously capped at $10,000). The income tax calculator provides detailed federal and state breakdowns without needing your W-2.

Tip: If you recently moved states, you may need to file two state returns and allocate income proportionally based on days worked in each state.

4

Credits That Supercharge Your Refund

$2,000 per child under 17 is the 2026 Child Tax Credit, with up to $1,700 refundable through the Additional Child Tax Credit. A married couple in Texas earning $120,000 with two children and a $10,000 401(k) contribution can expect roughly $5,306 in refunds: $12,000 withheld minus $6,694 in actual tax liability after the $4,000 CTC reduces their bill.

The Earned Income Tax Credit (EITC) for 2026 ranges from $649 (no children, income under ~$19,500 single) to $8,046 (3+ children, income under ~$63,400 single). The EITC is fully refundable, meaning it can generate a refund even if you owe zero tax. It is not available for married filing separately status.

Pre-tax contributions to 401(k), HSA, and traditional IRA reduce your AGI before any brackets apply. A $75,000 earner contributing $10,000 to a 401(k) and $4,300 to an HSA effectively reduces taxable income to $44,600 (after the $16,100 standard deduction), saving approximately $3,146 in federal tax compared to contributing nothing. The 1099 tax calculator shows how self-employed workers can achieve similar savings through the self-employment deduction.

  • Child Tax Credit: $2,000/child under 17 — phases out at $200,000 (single) / $400,000 (married)
  • EITC: up to $8,046 for 3+ children — fully refundable, income limits apply
  • 401(k) deduction: up to $23,500 ($31,000 with catch-up for 50+) — reduces AGI dollar-for-dollar
  • HSA deduction: $4,300 individual / $8,550 family — reduces AGI and funds tax-free medical expenses
  • SALT deduction: up to $40,400 — phases out at $505,000 MAGI (single), requires itemizing
5

How to Use the W2 Tax Calculator

5 W-2 box values plus your filing details are all this calculator needs to estimate both federal and state refunds. It applies 2026 progressive brackets for all 50 states, the updated $40,400 SALT cap, EITC, Child Tax Credit, and pre-tax deduction support for 401(k), HSA, and IRA contributions.

The calculator auto-selects the higher of your standard deduction or itemized total, ensuring you always get the best result. Enter your mortgage interest, SALT paid, charitable giving, and medical expenses to see if itemizing beats the standard deduction for your situation.

  1. 1

    Enter W-2 box values

    Input Box 1 (wages), Box 2 (federal withheld), and Box 17 (state withheld). Social Security and Medicare are auto-calculated from wages.

  2. 2

    Select state and filing status

    Choose your state for accurate bracket calculations. Filing status sets your standard deduction: $16,100 single, $32,200 married, $24,150 HoH.

  3. 3

    Add dependents

    Enter children under 17 for $2,000 CTC each. The calculator automatically applies phase-outs at $200,000/$400,000 income thresholds.

  4. 4

    Enter pre-tax contributions

    Add 401(k), HSA, and IRA amounts from Box 12 of your W-2. These reduce your AGI before tax brackets apply.

  5. 5

    Choose deduction method

    Standard is the default. Enter itemized amounts (mortgage interest, SALT up to $40,400, charity, medical) to compare. The calculator picks whichever saves you more.

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Last Updated: Mar 26, 2026

This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.

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