Trust
Data sources
Rules trace to official publications. Browse the sources and actual rule review dates for each registered state, alongside federal references and known estimate limitations. A reviewed source is not agency endorsement or a guarantee that every payroll situation is covered.
Sources for all registered states
Open a state for named official publications and its calculator scope. Rule review dates are read from the registry; they are not reset when this page changes.
Enter a state name or abbreviation, such as New York or NY.
Showing 46 of 46 states
Alabama3 referencesRules reviewed:
Alaska8 referencesRules reviewed:
Arizona3 referencesRules reviewed:
Arkansas8 referencesRules reviewed:
- Arkansas — 2026 standard formula
- Arkansas — Current employer guide revised4/27/26
- Arkansas — AR4EC certificate
- Arkansas — Low-income tables: outside this estimate
- Arkansas — Current forms directory
- Arkansas — Employer-funded unemployment
- Arkansas — Workers compensation premium rules
- Arkansas — Minimum wage, tips and overtime scope
California3 referencesRules reviewed:
Colorado6 referencesRules reviewed:
Connecticut8 referencesRules reviewed:
Florida4 referencesRules reviewed:
Georgia2 referencesRules reviewed:
Hawaii9 referencesRules reviewed:
- 2026 Booklet A, Part1 p20 and section15 p14
- Actual HW-4 certificate Rev2022
- Current2026 employer update
- 2026 TDI and PHC cost-sharing notice
- TDI actual plan and eligibility FAQ
- Employee TDI contribution limits HRS392-43
- Employee UI costs excluded
- No employee WC premium HRS386-129
- Minimum wage and overtime scope
Idaho8 referencesRules reviewed:
- Idaho Tax Commission — July2026 annual table
- Idaho Tax Commission — annualization and rounding
- Idaho Tax Commission — current ID W-4
- Idaho Tax Commission — wages and benefits
- Idaho Tax Commission — exclusions
- Idaho Labor — employer-funded UI
- Idaho Industrial Commission — employer WC
- Idaho Labor — current-linked labor-law guide
Illinois2 referencesRules reviewed:
Indiana3 referencesRules reviewed:
Iowa8 referencesRules reviewed:
Kansas7 referencesRules reviewed:
Kentucky8 referencesRules reviewed:
Louisiana9 referencesRules reviewed:
- Louisiana DOR — 2026 computer formula
- Louisiana DOR — 2026 guide and examples
- Louisiana DOR — current L-4
- Louisiana DOR — why withholding uses3.09%
- Louisiana DOR — qualified cafeteria contributions
- Louisiana DOR — supplemental pay
- Louisiana Works — employer-funded UI (printedp9)
- Louisiana Works — employer WC premium rules
- Louisiana Works — labor-law resources
Maryland4 referencesRules reviewed:
Massachusetts5 referencesRules reviewed:
Michigan4 referencesRules reviewed:
- Michigan Department of Treasury — 2026 Michigan Income Tax Withholding Guide (Form 446)
- Michigan Department of Treasury — Form MI-W4, Employee's Michigan Withholding Exemption Certificate
- Michigan Department of Treasury — 2026 City of Detroit Income Tax Withholding Guide (Form 5469)
- Michigan Department of Treasury — 2026 withholding tax forms
Minnesota6 referencesRules reviewed:
Mississippi9 referencesRules reviewed:
- Mississippi DOR — current2026 computer formula
- Mississippi DOR — current2026 guide
- Mississippi DOR — Form89-350
- Mississippi DOR — benefits/tips/supplemental FAQ
- Mississippi — income tax regulations
- MDES — employer-funded unemployment
- MWCC — employer premium restrictions
- U.S. DOL — minimum wage scope
- U.S. DOL — overtime coverage
Missouri6 referencesRules reviewed:
Montana7 referencesRules reviewed:
Nebraska7 referencesRules reviewed:
Nevada4 referencesRules reviewed:
New Hampshire4 referencesRules reviewed:
New Jersey3 referencesRules reviewed:
New York7 referencesRules reviewed:
- New York State Department of Taxation and Finance — Withholding tax rate changes
- New York State Publication NYS-50-T-NYS — New York State withholding tables
- New York State Publication NYS-50-T-NYC — New York City withholding tables
- IRS Publication 15-T — Federal Income Tax Withholding Methods
- New York IT-2104 instructions
- New York Paid Family Leave2026
- New York standard disability employer guidance
North Carolina2 referencesRules reviewed:
North Dakota7 referencesRules reviewed:
- North Dakota 2026 withholding booklet and wage bands
- IRS actual 2026 Form W-4
- North Dakota taxable-wage and withholding guideline
- North Dakota withholding and supplemental-wage directory
- North Dakota 52-04-01: employer UI contributions
- North Dakota WSI employer-funded coverage
- North Dakota wage and hour FAQ
Ohio3 referencesRules reviewed:
Oklahoma7 referencesRules reviewed:
- Oklahoma — 2026 OW-2 percentage tables and official example
- Oklahoma — Actual OK-W-4 certificate
- Oklahoma — Current withholding publications directory
- Oklahoma — Certificate allowances and separately requested extra
- Oklahoma — Employer unemployment tax
- Oklahoma — Workers compensation premium protections
- Oklahoma — Wage, coverage and overtime scope
Pennsylvania3 referencesRules reviewed:
Rhode Island9 referencesRules reviewed:
- Rhode Island final2026 percentage tables
- Rhode Island actual2026 RI W-4, page22
- DLT2026 employee TDI rates and cap
- DLT benefits, coverage and localization FAQ
- DLT employer and employee tax distinction
- DLT TDI tax and coverage limitations
- TDI wage definitions28-39-2
- DLT2026 wage and employee-rights poster
- DLT employer workers compensation coverage
South Carolina5 referencesRules reviewed:
South Dakota5 referencesRules reviewed:
Tennessee4 referencesRules reviewed:
Texas1 referenceRules reviewed:
Utah6 referencesRules reviewed:
Vermont9 referencesRules reviewed:
- Vermont2026 percentage tables
- Vermont W-4VT actual certificate
- Vermont CCC agency guidance
- Vermont CCC guide and examples
- Vermont CCC covered wage definitions
- Vermont CCC rates and employee maximum
- Vermont employer-funded unemployment
- Vermont workers compensation premium restriction
- Vermont wage and overtime scope
Virginia3 referencesRules reviewed:
- Virginia Department of Taxation — Employer withholding tables, wages paid after July 1, 2025 (applicable through taxable year 2026)
- Virginia Department of Taxation — Form VA-4, Employee's Virginia Income Tax Withholding Exemption Certificate
- Official federal payroll implementation of the Virginia withholding formula (USDA National Finance Center)
Washington4 referencesRules reviewed:
West Virginia8 referencesRules reviewed:
Wisconsin3 referencesRules reviewed:
Federal and New York rule examples
- 2026 FederalReviewed · Rules reviewed
- Social Security & Medicare (2026)Reviewed · Rules reviewed
- 2026 New York StateReviewed · Rules reviewed
- 2026 New York CityReviewed · Rules reviewed
- NY Paid Family Leave (employee)Reviewed · Rules reviewed
- NY disability benefits (employee)Reviewed · Rules reviewed
Federal — annual tax-comparison data
IRS Revenue Procedure 2025-32 (IR-2025-103, 9 October 2025)
- 2026 rate schedules for all four filing statuses
- 2026 standard deduction: $16,100 single and married filing separately, $32,200 married filing jointly, $24,150 head of household
Federal — withholding method
IRS Publication 15-T (2026), Federal Income Tax Withholding Methods
- Worksheet 1A, Percentage Method for Automated Payroll Systems, implemented line by line
- 2026 STANDARD Withholding Rate Schedules and Form W-4, Step 2, Checkbox, Withholding Rate Schedules
- Worksheet 1A line 1g amounts: $12,900 married filing jointly, $8,600 all other statuses
- Forms W-4 from 2019 or earlier: $4,300 per withholding allowance (lines 1j-1l)
- Supplemental wages: 22% optional flat rate, 37% mandatory above $1,000,000 for the year
Federal — Social Security & Medicare
SSA Contribution and Benefit Base; IRS Publication 926 (2026)
- 2026 Social Security wage base $184,500, employee rate 6.2%
- Medicare 1.45% with no wage base
- Paycheck withholding: Additional Medicare 0.9% above $200,000 annual Medicare wages from one employer, regardless of filing status (IRS Topic 751)
- Final-return liability thresholds $200,000 / $250,000 / $125,000 remain separate for annual tax-comparison tools; the paycheck estimate does not reconcile the tax return
New York State
NYS-50-T-NYS (1/26), annual Methods II/III and supplemental methods; Form IT-2104 (2026)
- Published annual withholding bands and Method III whole-net-wage top-income rates; separate Single/Married NY certificate status
- Annual withholding deduction $7,400 Single or $7,950 Married, plus $1,000 per NY allowance; extra withholding entered separately
- Conditional 11.70% separately identified bonus option, or aggregate alternative; displayed annualized estimates may differ from printed per-payroll tables
New York City — resident payroll withholding
NYS-50-T-NYC (1/26), pages 24–26 annual withholding schedule and page 3 supplemental methods
- Payroll deduction $5,000 Single or $5,500 Married, plus $1,000 per IT-2104 line 2 allowance; line 4 extra withholding separate
- Identified bonus 4.25% option requires regular NYC withholding independently of the NY State prerequisite; aggregate alternative otherwise
- Annualized payroll withholding is distinct from IT-201/IT-2105 final-return rate schedules; printed per-payroll rounding can differ
New York — employee-paid coverage options
https://paidfamilyleave.ny.gov/2026; NY Workers’ Compensation Board disability benefits employer guidance
- Optional employee-paid PFL estimate: 0.432% of gross wages, up to $411.91 annually per covered employer
- Optional standard disability estimate: 0.5% of wages, up to $0.60 weekly; employer-funded and enhanced plans are not inferred
- Annualized averages only: actual deductions depend on coverage, prior premiums, time worked and employer funding
New York City — annual-return comparison data
NYS Form IT-2105-I (2026), city resident tax rate schedules
- Resident rates 3.078% to 3.876% with thresholds by filing status
- Annual-return bracket data is retained for tax-comparison tools; the paycheck calculator instead uses the NYS-50-T-NYC payroll methods listed above. Neither calculation reconciles final NYC credits
California — income tax
California EDD, California Withholding Schedules for 2026, Method B exact calculation (26methb.pdf); Form DE 4
- Table 1 low income exemption: $18,896, or $37,791 for married employees claiming two or more allowances and heads of household
- Table 2 estimated deduction: $1,000 a year per additional allowance
- Table 3 standard deduction: $5,706 and $11,412
- Table 4 exemption allowance credit: $168.30 per regular allowance annually
- Tables 5, 6 and 7 annual rate schedules, 1.1% to 14.63%
- DE 4 marital status and both allowance counts entered by the user
California — State Disability Insurance
California EDD, 2026 California Payroll Taxes (DE 201 Rev. 12 (1-26))
- Employee SDI rate 1.3% of wages
- No taxable wage ceiling, per SB 951 effective 1 January 2024
- Employer-paid UI (3.4% on the first $7,000) and ETT (0.1%) deliberately excluded from take-home
Texas
Office of the Governor of Texas, Texas Economic Development — Business Climate
- No individual state income tax; state income tax line is always $0
- Employer-paid unemployment tax and franchise tax excluded from employee withholding
Florida
Florida Department of Revenue, FAQ 1466
- No personal state income tax; state income tax line is always $0
- Employer-paid reemployment tax excluded from employee withholding
New Jersey — income tax
NJ Division of Taxation, Tables for Percentage Method of Withholding; NJ-WT; Form NJ-W4
- Rate Tables A, B, C, D and E, annual payroll period, 1.5% to 11.8%
- Form NJ-W4 Instruction A Wage Chart, transcribed in full, to select Tables C, D and E
- Withholding allowance value $1,000 per year per exemption, subtracted from wages before the rate table
- NJ-W4 rate table and exemption count entered by the user
New Jersey — employee contributions
NJ Department of Labor & Workforce Development, Division of Employer Accounts, 2026 worker rates and taxable wage bases
- Unemployment insurance 0.3825% and workforce development 0.0425% on the first $44,800
- Temporary disability insurance 0.19% and family leave insurance 0.23% on the first $171,100
- Employer experience-rated UI, employer disability and municipal employer payroll taxes excluded from take-home
Still outstanding
Refinements that would move this from estimate to payroll-exact
- Exact printed per-payroll NY / NYC table rounding; annual schedules and conditional supplemental options are available
- Final-return New York benefit recapture, credits and multiple-job reconciliation; published annual withholding Methods II/III are used for pay estimates
- Exact paycheck/YTD stopping of New York PFL premiums and irregular-employment disability caps; optional annualized estimates are available
- Yonkers resident surcharge and non-resident earnings tax
Calculations are estimates for informational purposes and are not tax, legal, or financial advice. Actual withholding and take-home pay may differ.