CA Tools

Data Sources

The official agencies and programs behind every figure on this site.

Vehicle & EV

  • California Air Resources Board (CARB) — MyFirstEV, Clean Cars 4 All, Clean Air Vehicle sticker program; Clean Cars 4 All administrators (South Coast, Bay Area, Sacramento Metro and San Joaquin Valley air districts, San Diego APCD, and the statewide Driving Clean Assistance Program) for program status
  • DriveClean.ca.gov — official EV incentive application portal
  • California Department of Tax and Fee Administration (CDTFA) — vehicle sales and use tax rules; Vehicle Code §4456.5 (dealer documentation fee cap)
  • Judicial Council of California — Uniform Bail and Penalty Schedules (traffic infraction penalties, surcharge and court fees)
  • California Legislative Information — Vehicle Code §§1808.7, 40611, 42003, 42005; Penal Code §1214.1
  • Vehicle Code §§4604, 9552, 9554, 9559, 9561 (late registration penalties, Planned Non-Operation); California DMV Registration Fees page
  • U.S. Energy Information Administration — weekly California retail gasoline prices; PG&E electric rate schedules EV2-A and E-TOU-C
  • California Department of Public Health — WIC Income Guidelines (WPPM #980-1060, effective May 1, 2026 to June 30, 2027)
  • California Community Colleges Chancellor’s Office — 2026-27 California College Promise Grant income standards and CCPG and Special Programs Manual; 5 CCR §58620
  • California Public Utilities Commission — California LifeLine income limits (June 1, 2026 to May 31, 2027), eligibility page and program fact sheet
  • Residential time-of-use tariffs: PG&E schedules E-TOU-C, E-TOU-D, EV2 and E-ELEC; SCE Schedule TOU-D (Options 4-9 PM, 5-8 PM and PRIME); SDG&E Total Rates Tables for TOU-DR1, TOU-DR2, EV-TOU-5 and TOU-ELEC

Utilities & Benefits

  • California Public Utilities Commission (CPUC) — CARE, FERA program rules and income thresholds
  • California Department of Health Care Services (DHCS) — Medi-Cal MAGI income limits (ACWDL 26-01), non-MAGI asset limit reinstatement (ACWDL 25-14) and the undocumented-adult enrollment freeze
  • California Department of Community Services & Development — LIHEAP / Energy Savings Assistance
  • Social Security Administration — POMS SI 01415.058 (California SSI/SSP payment levels, January 2026), SSI federal payment amounts; California Department of Social Services — SSI/SSP maximum grant tables and eligibility summary; 20 CFR 416.1112, 416.1124
  • California Student Aid Commission — Middle Class Scholarship income and asset ceilings; Education Code §70022
  • Employment Development Department (EDD) — Disability Insurance pregnancy rules, Paid Family Leave; Government Code §§12945, 12945.2 (PDL, CFRA)
  • California State Teachers’ Retirement System (CalSTRS) — Member Handbook age factor tables, compensation limits

Employment

  • California Department of Industrial Relations (DIR) — minimum wage, exempt salary threshold, healthcare worker wage rules
  • California Legislative Information — Code of Civil Procedure §§706.050, 706.052 (wage garnishment limits)
  • California Legislative Information — Labor Code §§201, 201.5, 201.7, 202, 203, 227.3, 246(g) (final wages, vacation payout, waiting time penalty)
  • Division of Labor Standards Enforcement (DLSE) — "Paydays, pay periods, and the final wages" FAQ
  • Employment Development Department (EDD) — UI, ETT and SDI rates and taxable wage limits
  • California Legislative Information — Labor Code §§1474–1475 (fast food minimum wage, AB 1228 and AB 610)
  • Labor Commissioner’s Office — Fast Food Minimum Wage FAQ
  • Labor Commissioner’s Office — Reporting Time Pay FAQ and Split Shift FAQ; IWC Wage Orders §§4, 5
  • Division of Workers’ Compensation (DWC) — temporary total disability minimum and maximum rates (DIR Newsline 2025-116), benefits table; Labor Code §§4453, 4652, 4653, 4656
  • California Legislative Information — Unemployment Insurance Code §§1279, 1280 (partial unemployment benefits, weekly benefit maximum)
  • California Civil Rights Department — Family Care and Medical Leave fact sheet; Government Code §12945.2 (CFRA); U.S. Department of Labor Fact Sheet #28 (FMLA)

Property

  • California State Board of Equalization (BOE) — homeowners' and disabled veterans' exemptions, welfare exemption (Publication 149, Organizational Clearance Certificates), Prop 19 base year value transfer rules
  • California State Board of Equalization — Annual Report average property tax rates by county; Revenue and Taxation Code §75.41 (supplemental assessment proration)
  • California State Board of Equalization open data portal — county property tax allocations and average rates (Tables 14–15), net assessed values (Table 10), homeowners’ exemptions (Table 9) and exemptions (Table 8); BOE County Contacts (assessor and tax collector offices); Revenue and Taxation Code §§2192, 2605–2619 (lien date and payment deadlines) and §155.20 (low-value exemption)
  • County documentary transfer tax: Revenue and Taxation Code §11911; city transfer taxes: City of Los Angeles Office of Finance (Measure ULA), San Francisco Business & Tax Regulations Code Art. 12-C, Oakland Municipal Code 4.20.020, City of Berkeley
  • City rent stabilization programs (Los Angeles, San Francisco, Oakland, Berkeley, San Jose, Santa Monica and others) — annual allowable increases, coverage dates, relocation amounts
  • California Legislative Information — Civil Code §§1946.2, 1947.12 (AB 1482), 1954.50–1954.535 (Costa-Hawkins)
  • U.S. Bureau of Labor Statistics — CPI-U for Los Angeles, San Francisco, Riverside and San Diego metro areas (AB 1482 regional rent caps); Civil Code §§1942, 1942.5, 1954 (repairs, retaliation, landlord entry)
  • Fannie Mae — Selling Guide B3-6-02, debt-to-income ratio limits
  • Revenue and Taxation Code §§75.43 and 75.52 (supplemental refunds and due dates); Los Angeles County Treasurer and Tax Collector, New Property Owner page (supplemental bills go to the owner)
  • Government Code §§53311, 53321(d), 53341.5 and Civil Code §1102.6b (Mello-Roos special taxes and disclosure)
  • Code of Civil Procedure §§703.140, 704.730, 704.740, 704.950 (homestead exemption); Department of Industrial Relations, California Consumer Price Index; Judicial Council form EJ-156
  • State Controller's Office — Property Tax Postponement program page and fact sheet; Revenue and Taxation Code §§20503, 20585; Government Code §16183
  • Civil Code §1950.5 (security deposit return, as amended by AB 414, 2025)
  • California Housing Finance Agency — MyHome Assistance, Dream For All, borrower requirements and 2026 income limits

Family & Legal

  • California Legislative Information — Code of Civil Procedure §§116.220–116.750 (small claims limits, fees, service, appeals); Judicial Council form SC-100-INFO
  • California Legislative Information — Code of Civil Procedure §§335.1–343, 352, 360, 683.020; Commercial Code §2725; Business and Professions Code §17208; Government Code §§911.2, 945.6, 12960, 12965; Penal Code §§799–802 (statutes of limitations)
  • California Legislative Information — Family Code §§70, 760, 770, 771, 852, 2550, 2581, 2601, 2622, 2625, 2640; In re Marriage of Moore (1980) 28 Cal.3d 366; In re Marriage of Marsden (1982) 130 Cal.App.3d 426 (community property division)
  • California Legislative Information (leginfo.legislature.ca.gov) — Family Code §§4055, 4057, 4058, 4059 (statewide child support guideline, as amended effective September 1, 2024)
  • California Department of Child Support Services (DCSS) — child support services and the official guideline calculator
  • Santa Clara County Superior Court Family Rules, Rule 3(C) (temporary spousal support guideline); Family Code §§4320, 4336, 4337; FTB — California tax treatment of alimony
  • Probate Code §§10800, 10810, 13100 (leginfo); Judicial Council of California — Probate Code §890 adjusted amounts (small estate limits)

Tax

  • California Franchise Tax Board (FTB) — income tax brackets, capital gains treatment, home sale exclusion
  • FTB — estimated tax payments (30/40/0/30 schedule, Form 540-ES); EDD — Elective Coverage for the self-employed
  • FTB 2025 Form 540 instructions — exemption credits, renter’s credit, AGI limitation; SB 132 (2025) military retirement exclusion
  • FTB — Where’s my refund; 2025 Form 540 renter’s credit qualification record
  • FTB — Nonrefundable renter’s credit page (AGI limits, credit amounts); 2025 Form 540 instructions, line 46 (where the credit is claimed)
  • Employment Development Department (EDD) — California Employer's Guide (DE 44), supplemental wage withholding rates
  • Internal Revenue Service — Publication 15, supplemental wage and Additional Medicare withholding
  • Franchise Tax Board (FTB) — Form 540-ES instructions (estimated tax safe harbors, due dates, mandatory e-pay)
  • FTB — 2025 form FTB 3514 and instructions (CalEITC limits, Young Child Tax Credit phaseout); Young Child Tax Credit and CalEITC pages
  • FTB — 2025 Form 540NR booklet and Schedule CA (540NR) instructions (part-year resident tax rate, deduction and exemption credit percentages)
  • FTB — Schedule CA (540) instructions (HSA contributions, earnings and distributions; California Lottery exclusion); IRS Rev. Procs. 2024-25, 2025-19 and 2026-24 (HSA limits); IRS Publication 969
  • FTB — 2025 Form 540 instructions, line 91 Use Tax Worksheet and Estimated Use Tax Lookup Table; CDTFA city and county sales and use tax rates
  • FTB — Gambling income page; IRS Instructions for Forms W-2G and 5754 (regular gambling withholding)

Business

  • Office of Environmental Health Hazard Assessment (OEHHA) — Proposition 65 list, safe harbor levels and short-form warning amendments (Title 27 CCR Article 6)
  • California Franchise Tax Board (FTB) — LLC annual tax and gross receipts fee
  • California Secretary of State (bizfile) — Statement of Information filing periods, fees and delinquency
  • California Legislative Information (leginfo.legislature.ca.gov) — Corporations Code §§17702.09, 1502, 17713.07 and Business & Professions Code §§17900–17930 (fictitious business names)
  • County clerk-recorder offices — fictitious business name filing fees and procedures vary by county
  • County assessor offices — property tax exemption claims (homeowners', disabled veterans', welfare) are filed with the assessor of the county where the property is located
  • FTB — business tax rates (C corporation, S corporation, financial), $800 minimum franchise tax, PTE elective tax (SB 132)
  • California Department of Tax and Fee Administration (CDTFA) — Publication 107 (Do You Need a California Seller's Permit?), Publication 109, Temporary Sellers and Permits & Licenses pages; Regulations 1595 and 1699; Revenue and Taxation Code §§6043, 6045, 6066, 6067, 6203
  • Civil Code §1770(a)(29) (SB 478 / SB 1524 all-in pricing), §§1761, 1780; Business and Professions Code §17206; California Attorney General, SB 478 Hidden Fees FAQ; FTC Rule on Unfair or Deceptive Fees, 16 CFR Part 464

Each tool page also links directly to its specific official source in the "How this is calculated" section. To see when each page gets the next round of official figures, and which pages are already updated, see the data update schedule.