Written by Jayson Elliott · Attorney, Bay Legal PC · CA Bar No. 332479 · Last reviewed April 2026
California Mechanics Lien Law — 2026 Updates
What contractors, subcontractors, and property owners need to know about California construction law as of 2026, including SB 37 attorney advertising requirements and lien practice developments.
SB 37 — Attorney Advertising Transparency (Effective January 1, 2026)
California Senate Bill 37, effective January 1, 2026, imposes new disclosure requirements on attorney advertising. Law firms operating referral or information websites — including mechanics lien resource sites — must prominently disclose the name of the responsible attorney, their State Bar number, and the physical location of the bona fide office.
ContractorLienLaw.com is operated by Bay Legal PC. Responsible attorney: Jayson Elliott, California State Bar No. 332479. Bona fide office: 667 Lytton Ave Suite 3, Palo Alto, CA 94301 (Santa Clara County).
Prompt Payment Law — Existing Requirements Remain Strict
California's prompt payment statutes (Civil Code §8800 et seq. and Business & Professions Code §7108.5) continue to impose strict obligations. Owners must pay general contractors within 30 days of invoice. GCs must pay subcontractors within 7 days of receiving payment from the owner. Penalties of 2% per month apply to late payments, plus attorney's fees.
Lien Waiver Form Requirements
The four statutory lien waiver forms under Civil Code §8120–8138 remain in effect. California strictly prohibits non-statutory waiver language from modifying or expanding a claimant's waiver of rights. Any provision in a lien waiver that purports to waive rights beyond those covered by the statutory form is void and unenforceable.
Contractors should ensure that waiver forms used on all projects use the current statutory language and do not contain impermissible additional provisions inserted by owners or GCs.
Public Works Threshold Updates
The threshold for mandatory payment bonds on California public works projects remains $25,000 under Public Contract Code §9554. No change was enacted for 2026. Monitor the California Department of General Services and Public Works Board for any administrative updates to prevailing wage or bond requirements.
What Has Not Changed
- 20-day preliminary notice requirement for subcontractors and suppliers
- 90-day deadline to record a mechanics lien after completion or last day of work
- 90-day deadline to file a lien foreclosure lawsuit
- 125% bond amount for lien release bonds
- Constitutional basis for lien rights under Article XIV, Section 3
Frequently Asked Questions
What changed in California mechanics lien law for 2026?
The most significant 2026 development is SB 37, which imposes new attorney advertising disclosure requirements effective January 1, 2026. The core mechanics lien deadlines and procedures — preliminary notice (20 days), lien filing (90 days), and foreclosure (90 days) — remain unchanged.
Did California change the mechanics lien filing deadline in 2026?
No. The fundamental deadlines remain: 90 days from last day of work (without Notice of Completion), 30 days for subcontractors after a Notice of Completion is recorded, and 60 days for direct contractors after a Notice of Completion is recorded.
Bay Legal PC — Mechanics Lien Attorneys
Bay Legal PC handles mechanics lien enforcement, lien releases, and construction payment disputes throughout California. Free initial consultations available.
Get a Free Consultation →"Jayson and Ashley helped me tremendously with a construction dispute in which my previous general contractor abandoned the project. I cannot recommend them enough."
— Josey, Google Review
"I had issues with a contract that was not fulfilled. Jayson sent a demand letter outlining where the contract was breached. In the end I was paid back and got the outcome I wanted — all while avoiding escalation to suing."
— Jennifer, Google Review
"I cannot imagine how we would have navigated our conflict with our contractor had it not been for Jayson. He was professional, compassionate, informative and responsive."
— David, Google Review
Reviews from Google. Individual results may vary. Read all 371 reviews →
Talk to an Attorney — Free Consultation
Bay Legal PC handles mechanics lien disputes throughout California. Tell us about your situation and we'll be in touch promptly.
Call or text: (650) 668-8000 · Phone, video, or Palo Alto office
SoCal: (213) 668-8000
Jayson Elliott, Bay Legal PC · Palo Alto, California
✓ We received your message.
A member of the Bay Legal PC team will contact you shortly. See our Privacy Policy.
Or visit Bay Legal PC directly:
Visit BayLegal.com →