California Real Estate Calculators

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.

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 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 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.