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SB-1329 • 2026

Real property tax: valuation: active solar energy system.

Real property tax: valuation: active solar energy system.

Budget Education Energy Taxes
Passed Legislature

This bill passed both chambers and reached final enrollment, even if later executive action is not shown here.

Sponsor
McNerney
Last action
2026-04-09
Official status
Set for hearing May 6.
Effective date
Not listed

Plain English Breakdown

Checked against official source text during the last sync.

Real Property Tax: Valuation of Active Solar Energy Systems

The bill sets rules for how active solar energy systems are valued for property tax purposes in California.

What This Bill Does

  • Defines the preferred method to value an active solar energy system as 'replacement cost new' minus depreciation and other forms of obsolescence.
  • Specifies that only tangible parts of a solar energy system count towards its valuation, not intangible assets or rights.
  • Requires local tax officials to treat excluded solar systems as separate appraisal units from other property.
  • Limits state reimbursement for lost property tax revenues due to the new rules.

Who It Names or Affects

  • Home and business owners with active solar energy systems in California
  • Local tax officials responsible for appraising real estate

Terms To Know

Replacement Cost New
The cost to replace an asset with a new one of similar quality.
Depreciation
A decrease in the value of property over time due to wear and tear or obsolescence.

Limits and Unknowns

  • The bill does not specify how much tax revenue local agencies might lose.
  • It is unclear if all solar energy systems will be treated equally under these new rules.

Bill History

  1. 2026-04-09 California Legislative Information

    Set for hearing May 6.

  2. 2026-04-08 California Legislative Information

    Re-referred to Com. on REV. & TAX.

  3. 2026-03-23 California Legislative Information

    From committee with author's amendments. Read second time and amended. Re-referred to Com. on RLS.

  4. 2026-03-04 California Legislative Information

    Referred to Com. on RLS.

  5. 2026-02-23 California Legislative Information

    Read first time.

  6. 2026-02-23 California Legislative Information

    From printer. May be acted upon on or after March 23.

  7. 2026-02-20 California Legislative Information

    Introduced. To Com. on RLS. for assignment. To print.

Official Summary Text

SB 1329, as amended, McNerney.
Personal income taxes.
Real property tax: valuation: active solar energy system.
The California Constitution generally limits the maximum rate of ad valorem tax on real property to 1% of the full cash value of the property and defines “full cash value” for these purposes as the appraised value of real property when purchased, newly constructed, or a change in ownership has occurred after the 1975 assessment. Pursuant to constitutional authorization, existing property tax law excludes from the definition of “newly constructed” for these purposes the construction or addition of any active solar energy system, as defined, through the 2025–26 fiscal year, except as specified.
This bill would establish uniform rules regarding the method of valuation of an active solar energy system. The bill would provide that the preferred
valuation of an active solar energy system is the “replacement cost new” less depreciation and all other forms of obsolescence. The bill would set forth parameters for determining the replacement cost new value and would provide that the valuation of such a system is limited to only the tangible property comprising the active solar energy system, and does not include intangible assets and rights of the system, as described. The bill would also provide that, with respect to an active solar energy system or portion thereof excluded in whole or part from the definition of “newly constructed,” as specified, the active solar energy system or portion thereof shall be treated as a separate appraisal unit from any property not excluded. By expanding the duties of local tax officials, this bill would impose a state-mandated local program.
Existing law requires the state to reimburse local agencies annually for certain property tax revenues lost as a result of
any exemption or classification of property for purposes of ad valorem property taxation.
This bill would provide that, notwithstanding those provisions, no appropriation is made and the state shall not reimburse local agencies for property tax revenues lost by them pursuant to the bill.
The California Constitution requires the state to reimburse local agencies and school districts for certain costs mandated by the state. Statutory provisions establish procedures for making that reimbursement.
This bill would provide that, if the Commission on State Mandates determines that the bill contains costs mandated by the state, reimbursement for those costs shall be made pursuant to the statutory provisions noted above.
This bill would take effect immediately as a tax levy.
This bill would include a change in state statute that would result in a taxpayer paying a higher tax within the meaning of Section 3 of Article XIII A of the California Constitution, and thus would require for passage the approval of
2
/
3
of the membership of each house of the Legislature.
Existing law, the Personal Income Tax Law, imposes taxes on income and provides definitions of specified terms for the purposes of that law, including a definition for “part-year resident.”
This bill would make a nonsubstantive change to those provisions.

Current Bill Text

Read the full stored bill text
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