By jurisdiction
California calculators
10 statute-cited calculators across 2 clusters, all reviewed against California's current statute and regulation. Planning tools, not professional advice.
Cal. Const. Art. XIIIA + Civil Code
California Real Estate
Proposition 13 property-tax mechanics, Prop 19 transfer rules, and post-AB-12 security-deposit caps. The two-line bumper of California ownership math.
California Proposition 13 Property Tax Calculator
Compute a California property's tax bill under Proposition 13 (Cal. Const. Art. XIIIA): the 1% ad-valorem base rate, the 2% annual cap on assessed-value growth from the base year value, and the change-of-ownership reassessment rule. Surfaces Prop 19 (2020) updates: the parent-child primary-residence exclusion now limited to $1M difference in market vs assessed (Cal. Rev. & Tax Code § 63.2), and the 55+/severely disabled portability allowance of up to three base-year-value transfers anywhere in California (§ 69.6).
California AB 1482 Statewide Rent Cap Calculator
Evaluate a California residential rent increase against the AB 1482 Tenant Protection Act (Cal. Civil Code § 1947.12, Stats. 2019 Ch. 597; effective January 1, 2020, sunset January 1, 2030). Computes the § 1947.12(a)(1) cap as the lesser of 5% + regional CPI or 10%, applies the § 1947.12(a)(2) twice-per-12-months rule, and resolves each § 1947.12(d) exemption — the 15-year rolling new-construction exemption, the single-family-home exemption with its corporate-ownership trap and § 1947.12(d)(5) written-notice requirement, the duplex owner-occupied exemption, deed-restricted affordable housing, and the § 1947.12(j) deference to stricter local rent stabilization ordinances. Surfaces the § 1946.2 just-cause eviction companion and the statutory sunset.
California Mello-Roos CFD Tax Calculator
Project the lifetime cost of a California Mello-Roos Community Facilities District (CFD) special tax on a parcel under the Mello-Roos Community Facilities Act of 1982 (Cal. Gov. Code §§ 53311–53368.3). Walks the current-year special tax forward at the supplied annual escalator (typically 2%, set by the CFD's Rate and Method of Apportionment under § 53321(d)) across the remaining bond term, reports the nominal lifetime total and the present value at a 6% discount, expresses the special tax as an effective ad-valorem-equivalent percentage of purchase price, and combines it with the parcel's Prop 13 base property tax to surface the true first-year property-tax burden. The Mello-Roos special tax is layered on top of Cal. Const. Art. XIIIA § 1(a)'s 1% base rate cap — it does NOT count toward the 1% cap because it is a special tax, not an ad-valorem tax. Disclosure is REQUIRED at every sale under Cal. Civ. Code § 1102.6b via the separate Notice of Special Tax and Assessment Lien.
California Documentary Transfer Tax + City RPTT Calculator
Compute the two-layer California real-estate transfer tax stack — the statewide County Documentary Transfer Tax under Cal. Rev. & Tax Code § 11911 (the $0.55 / $500 = 0.11% county base) plus any city-level Real Property Transfer Tax authorized by Cal. Gov. Code § 37101 and the local charter (Cal. Const. Art. XI § 5). Models the eight most-impactful 2026 city schedules: San Francisco's 0.5%-6.0% Prop ULA mansion-tax ladder (highest in the United States at the $25M+ tier), Los Angeles's 0.45% base + 4.0% / 5.5% Measure ULA surtax, Oakland's Measure X four-tier 0%-2.5% ladder, Berkeley, San Jose's Measure E schedule, Santa Monica's Measure GS schedule, Culver City's Measure RE schedule, and the catch-all 'other California city' case where only the county 0.11% applies. Each city tier applies FLAT to the whole sale price (not marginally) and the cliff effect at $5M / $10M / $25M is dispositive.
California Tenant Security Deposit Calculator
Evaluate a California residential security deposit under Cal. Civil Code § 1950.5, as amended by AB 12 (Statutes of 2023, Ch. 689; effective July 1, 2024). Computes the lawful maximum deposit under the post-AB-12 one-month cap (§ 1950.5(c)(1)), the small-landlord two-month exception for natural persons owning no more than two residential properties comprising no more than four units (§ 1950.5(c)(4)), and the active-duty servicemember one-month protection (§ 1950.5(c)(5)). Surfaces the § 1950.5(g)(1) 21-day return deadline, the § 1950.5(g)(2) itemized statement and $125 receipt threshold, the § 1950.5(f) pre-move-out walkthrough right, and the § 1950.5(l) bad-faith retention exposure of up to two times the deposit.
Davis-Stirling Act
California HOA
California common-interest-development calculators under the Davis-Stirling Act (Civil Code §§ 4000-6150): assessment lien and nonjudicial foreclosure timing including the $1,800 / 12-month threshold under § 5705, late-fee + interest caps under § 5650(b), the Open Meeting Act notice windows, reserve-funding percent-funded under § 5570, and the Davis-Stirling quorum + supermajority thresholds.
California HOA Assessment Lien & Foreclosure Timeline Calculator
Walk a California HOA assessment-lien enforcement file against the Davis-Stirling Common Interest Development Act (Cal. Civ. Code §§ 4000-6150): the 30-calendar-day pre-lien collection notice under § 5660, the board-vote prerequisite under § 5673, the lien recording and 10-day post-recording notice under § 5675, the $1,800 OR 12-month nonjudicial-foreclosure threshold under § 5705, the executive-session board-vote requirement to foreclose, the 90-day reinstatement window under § 5710 after a Notice of Default is recorded, and the 90-day post-trustee's-sale redemption right under § 5715(b). Returns the cure-window end date, earliest lien-recording date, threshold-met flags, reinstatement deadline, redemption deadline, and a next-action recommendation grounded in the statute.
California HOA Late Fee & Interest Cap Calculator
Test a California HOA late-fee and interest charge against the Cal. Civ. Code § 5650(b) cap: late fee at the greater of $10 or 10% of the delinquent assessment; interest at up to 12% per annum on the delinquent assessment + late fee + reasonable costs; late fee and interest may not begin to accrue until 30 days after delinquency under § 5650(b)(4). Returns the maximum permissible late fee, the maximum permissible accrued interest, the effective charges (lesser of CCR-specified and statutory cap), the days remaining in the 30-day grace period, and an over-cap warning if the CCR-specified amounts exceed the statutory cap.
California HOA Open Meeting Act Notice Calculator
Compute the Common Interest Development Open Meeting Act notice deadline for a California HOA meeting under Cal. Civ. Code §§ 4900-4955. Handles open-session board meetings (4-day notice under § 4920(a)), executive-session board meetings (2-day notice under § 4920(b)), committee meetings (4-day notice under § 4910 / § 4920), annual and special member meetings (30-90 day window under § 5000), and elections (30-day pre-notice + 30-day balloting window under §§ 5100-5135). Returns the latest permissible posting date, the earliest permissible posting date for member meetings, the required delivery method (general under § 4045 or individual under § 4040), and a per-topic permissibility assessment that flags agenda items that require executive session under § 4935 (litigation, contracts, member discipline, owner-personal matters, personnel).
California HOA Reserve Funding Percent-Funded Calculator
Compute a California HOA reserve fund's CURRENT percent funded (reserve balance / fully funded balance, classified against the CRA / CAI tiers — strong 70-100%, fair 30-70%, weak under 30%), the 30-year PROJECTED percent funded given inflation, investment return, and annual contribution assumptions, and the REQUIRED monthly contribution to reach a target percent funded over the 30-year horizon. Disclosure metric required by Cal. Civ. Code § 5570 (annual reserve disclosure); funding-plan-adequacy test for the § 5560 board funding plan; companion to the § 5550 reserve study every three years. Also computes the § 5605 emergency-special-assessment 5% board cap on the annual budget.
California HOA Davis-Stirling Quorum & Supermajority Calculator
Compute whether a California HOA member vote has reached quorum and the votes-required-to-pass threshold under Davis-Stirling (Cal. Civ. Code § 4070 quorum default; § 4275 CCR amendment supermajority — 51% of total membership; § 4270 bylaws amendment; § 4760 transfer of common-area property — 67% of total membership; § 5605 special-assessment and capital-improvement over 5% — majority of quorum) and the underlying Corporations Code (Cal. Corp. Code § 7150 et seq. for nonprofit mutual-benefit corporations). Returns the effective quorum percentage and votes required, the quorum-met flag, the votes-required-to-pass for the vote type, and the current ballot status (passed, failed, pending, or no-quorum).