How To Calculate Property Tax in California

How to Calculate Property Tax in California

Start with your assessed value, subtract the approved value exemption, apply the 1% base tax and your parcel’s additional bond rate, then add annual direct charges. The calculator above shows each part separately so you can compare the estimate with your bill.

For this 2026 guide, use figures for the 2026–27 fiscal year, July 1, 2026 through June 30, 2027. This is an annual secured-property estimate, not a calculation of the amount due immediately after buying a home.

What is included in California property tax?

Your bill can contain percentage-based property tax and separate dollar charges. The statewide base rate is 1%; voter-approved bonded debt can add to that rate. Direct assessments and special taxes are entered separately rather than treated as another percentage.

The county assessor determines the assessed value. The tax collector handles billing and payment. A market-price estimate from a property website is not necessarily the assessed value used on your current bill.

Get these four figures from your bill

1. Assessed value before exemptions

Enter the combined assessed land and improvement value before exemptions. If your bill also shows a lower net taxable value, do not use that figure and subtract the exemption again.

For a recent purchase, the seller’s assessment may not represent your future assessment. Use the county’s updated value when available; a purchase-price estimate remains provisional.

2. Approved value exemption

Enter the exemption amount shown on your assessment, or leave this field blank for zero. The homeowners’ exemption can reduce taxable value by $7,000 for a qualifying principal residence; it is not a $7,000 reduction in the tax bill.

Do not assume eligibility just because you own a home. Use the amount actually applicable to your property, especially where filing timing or a different exemption changes the approved amount.

3. Additional bond rate above 1%

The calculator already includes the 1% base rate. If your verified combined percentage rate is 1.20%, enter 0.20 in this field, not 1.20.

Use your parcel’s rate rather than a countywide average. Enter zero only when you have confirmed there is no additional bond rate; an unknown rate is not the same as zero.

4. Annual direct charges

Add the full-year dollar charges listed separately on the bill. These may include direct assessments or Mello-Roos special taxes. Include only applicable amounts, and do not add percentage-based bond tax here a second time.

Press Calculate after entering the figures. Reset clears the entries and result. For another property-tax estimate, the California Property Tax Calculator uses a combined-rate input, so check its labels before transferring these numbers.

A complete 2026 calculation

Suppose your assessed value is $600,000, your approved exemption is $7,000, the additional bond rate is 0.20%, and annual direct charges total $384. These are illustrative inputs, not a quoted rate for any county.

Net taxable value:

$600,000 − $7,000 = $593,000

Base property tax:

$593,000 × 1% = $5,930

Additional bond tax:

$593,000 × 0.20% = $1,186

Estimated annual property tax:

$5,930 + $1,186 + $384 = $7,500

Monthly budget equivalent:

$7,500 ÷ 12 = $625

The monthly figure is a budgeting amount, not a monthly county payment schedule. Enter the $7,500 annual total in the California Mortgage Calculator when including property tax in your housing estimate.

Why your result may differ from the bill

First compare the fiscal year, assessed value, exemption and parcel rate. Then check whether the bill includes charges you left out. This calculator rounds the base and bond components to cents; county line-item rounding can produce small differences.

A supplemental tax bill is separate from the regular annual estimate. A change in ownership or new construction can generate an additional assessment covering the relevant part of the fiscal year. This calculator does not calculate that assessment or any resulting refund.

If you are buying, keep annual ownership costs separate from the cash needed at closing. Use your lender or escrow figures in the California Closing Cost Calculator; do not assume this annual estimate equals your closing tax adjustment.

Proposition 13 generally limits inflation growth in the factored base-year value to 2% annually. It does not cap every increase in the total bill. Reassessment, changing bond rates and direct charges can affect the amount payable.

The calculator accepts your current assessed value; it does not project reassessments or add an annual inflation increase. Questions about exemptions, assessment appeals and reassessment rules can be researched through the BOE property-tax resources.

Use the result without double-counting costs

If your mortgage payment already includes a tax escrow amount, check that allowance before adding the calculator’s monthly figure to your budget. Otherwise, you may count the same expense twice.

For a wider affordability check, compare your remaining income with the expenses discussed in Livable Wage in California. Property tax is only one part of owning a home; insurance, maintenance and any HOA charges remain separate.

Frequently asked questions

Q1: Is California property tax always exactly 1%?

A: No. The base is 1%, but additional bond tax and direct charges can increase the annual total. Use the actual figures for your parcel.

Q2: Should I enter my mortgage balance?

A: No. Enter the assessed property value before exemptions. The amount you still owe on the loan is not the tax base.

Q3: Does Calculate claim my homeowners’ exemption?

A: No. It only subtracts the amount you enter. Exemption claims are handled through your county assessor, not this website.

Q4: Can I use this to calculate California income tax?

A: No. Property tax and the California income tax rate apply to different tax bases. Use the income and paycheck tools on California Calculator for those separate calculations.