California 20252026 Regular Session Status: Passed Senate 1 R cosponsors

SB 603 — Property taxation: transfer of base year value: disaster relief.

Last action — August 29 hearing: Held in committee and under submission.

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  1. ✓
    Introduced
  2. ✓
    In Committee
  3. 3
    Passed Senate
  4. 4
    Passed Assembly
  5. 5
    To Executive
  6. 6
    Enacted

This bill has passed the Senate. Introduced February 20, 2025. It now moves to the second chamber.

Next likely step: consideration and a floor vote in the Assembly.

Prognosis

Advancing 48% · moderate confidence

Where this bill stands today.

Odds of enactment

High

How often bills like it became law.

  • Passed Senate

    Current position in the legislative process.

  • 1 sponsor

    1 primary, 0 co-sponsors signed on.

  • Single-party support

    Sponsorship is currently within one party (1 R).

  • Cleared a recorded vote

    Passed 5 recorded votes so far.

Prognosis reads this bill's own signals — stage, sponsorship breadth, committee status, recorded votes and cross-state momentum. Odds come from a model trained on which bills have become law.

Summary

Existing property tax law provides, pursuant to a requirement of the California Constitution, that the property tax base year value of real property that is substantially damaged or destroyed by a disaster, as declared by the Governor, may be transferred to a comparable property located within the same county that is acquired or newly constructed within 5 years after the disaster as a replacement property. This bill would authorize the county board of supervisors of any county proclaimed by the Governor to be in a state of emergency, or otherwise determined or declared by the Governor to be in a state of disaster, on or after January 1, 2025, but before January 1, 2030, to extend the above-described time period to transfer by up to 3 years for properties located in that county. The bill would apply to the determination of base year values for lien dates occurring on or after January 1, 2025, and before January 1, 2030. 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. This bill would take effect immediately as a tax levy.

Bill Text

Action History

  1. August 29 hearing: Held in committee and under submission.

  2. August 20 set for first hearing. Placed on APPR. suspense file.

  3. Read second time and amended. Re-referred to Com. on APPR.

  4. From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 7. Noes 0.) (July 14).

  5. June 23 set for first hearing. Placed on REV. & TAX. suspense file.

  6. Referred to Com. on REV. & TAX.

  7. In Assembly. Read first time. Held at Desk.

  8. Read third time. Passed. (Ayes 38. Noes 0. Page 1328.) Ordered to the Assembly.

  9. Ordered to special consent calendar.

  10. From committee: Do pass. (Ayes 6. Noes 0. Page 1206.) (May 23).

  11. Read second time. Ordered to third reading.

  12. Set for hearing May 23.

  13. May 19 hearing: Placed on APPR. suspense file.

  14. Set for hearing May 19.

  15. From committee: Do pass and re-refer to Com. on APPR. (Ayes 5. Noes 0. Page 1083.) (May 14). Re-referred to Com. on APPR.

  16. From committee with author's amendments. Read second time and amended. Re-referred to Com. on REV. & TAX.

  17. Set for hearing May 14.

  18. Referred to Com. on REV. & TAX.

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

  20. Introduced. Read first time. To Com. on RLS. for assignment. To print.

Sponsors

Sponsorship breakdown

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1 sponsors · 0 co-sponsors · 121 not signed on

Sponsors (1)

Co-sponsors (0)

None.

Not signed on (121)

121 members have not signed on to this bill.

Show all 121 →

"Not signed on" means a member has not sponsored or co-sponsored this bill — it does not imply opposition. Members flagged Voted No have a recorded No vote on this bill.

Whip count is in markup. Polling the chamber and every recorded vote this session. Only the first open is slow. It’s instant for you after this. Calling the roll · Tallying · Engrossing

Votes

Special Consent

Passed 38 Yea · 0 Nay · 2 Other
Party YeaNayPresentNot Voting
Democratic 28002
Republican 10000
Total 38002
% of votes cast 95%0%0%5%
How each member voted (40)
Member Party Vote
Allen, Benjamin Democratic Yea
Archuleta, Bob Democratic Yea
Arreguín, Jesse Democratic Yea
Ashby, Angelique V. Democratic Yea
Becker, Josh Democratic Yea
Blakespear, Catherine S. Democratic Yea
Cabaldon, Christopher Democratic Yea
Caballero, Anna M. Democratic Yea
Cervantes, Sabrina Democratic Yea
Cortese, Dave Democratic Yea
Durazo, Maria Elena Democratic Yea
Gonzalez, Lena A. Democratic Yea
Grayson, Timothy S. Democratic Yea
Hurtado, Melissa Democratic Yea
Laird, John Democratic Yea
Limón, Monique Democratic Not Voting
McGuire, Mike Democratic Yea
McNerney, Jerry Democratic Yea
Menjivar, Caroline Democratic Yea
Padilla, Stephen C. Democratic Yea
Pérez, Sasha Renée Democratic Yea
Reyes, Eloise Gómez Democratic Not Voting
Richardson, Laura Democratic Yea
Rubio, Susan Democratic Yea
Smallwood-Cuevas, Lola Democratic Yea
Stern, Henry I. Democratic Yea
Umberg, Thomas J. Democratic Yea
Wahab, Aisha Democratic Yea
Weber Pierson, M.D., Akilah Democratic Yea
Wiener, Scott D. Democratic Yea
Alvarado-Gil, Marie Republican Yea
Choi, Steven S. Republican Yea
Dahle, Megan Republican Yea
Grove, Shannon Republican Yea
Jones, Brian W. Republican Yea
Niello, Roger W. Republican Yea
Ochoa Bogh, Rosilicie Republican Yea
Seyarto, Kelly Republican Yea
Strickland, Tony Republican Yea
Valladares, Suzette Martinez Republican Yea

Official roll call →

Subjects

taxation housing
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Frequently asked questions

What does SB 603 do?
Existing property tax law provides, pursuant to a requirement of the California Constitution, that the property tax base year value of real property that is substantially damaged or destroyed by a disaster, as declared by the Governor, may be transferred to a comparable property located within the same county that is acquired or newly constructed within 5 years after the disaster as a replacement property. This bill would authorize the county board of supervisors of any county proclaimed by the Governor to be in a state of emergency, or otherwise determined or declared by the Governor to be in a state of disaster, on or after January 1, 2025, but before January 1, 2030, to extend the above-described time period to transfer by up to 3 years for properties located in that county. The bill would apply to the determination of base year values for lien dates occurring on or after January 1, 2025, and before January 1, 2030. 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. This bill would take effect immediately as a tax levy.
Who sponsors SB 603?
SB 603 is sponsored by Niello, Roger W. (Republican).
What is the current status of SB 603?
This bill has passed the Senate. Introduced February 20, 2025. It now moves to the second chamber.
Where can I track SB 603?
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