Capital Gains Tax on Real Estate in California

Calculation of Taxable Gain on Property Sales

A California seller's capital gains tax starts with the gain, which is the amount realized minus adjusted basis. The amount realized equals the final contract sale price minus allowable selling costs, such as commissions. Your adjusted basis starts with the original purchase price, plus capital improvements and qualified closing costs from purchase, minus any depreciation previously claimed or allowed.

To see this arithmetic in action, consider a concrete worked example. Assume a seller bought a home for $400,000, spent $50,000 on capital improvements including a new roof and kitchen, and later sold the property for $900,000 while paying $54,000 in selling costs:

* Original Purchase Price: $400,000 * Capital Improvements: $50,000 * Adjusted Basis ($400,000 + $50,000): $450,000 * Gross Sale Price: $900,000 * Selling Costs: $54,000 * Amount Realized ($900,000 - $54,000): $846,000 * Total Capital Gain ($846,000 - $450,000): $396,000

This $396,000 balance represents the total gain. It does not automatically represent the amount subject to tax, because your usage of the property dictates your available exclusions. You can model your personal property purchase and renovation costs using our capital gains calculator to establish your baseline numbers.

Federal Tax Rates on Real Estate Profits

Federal taxation on real property profits depends primarily on how long you owned the asset prior to closing. Real estate held for one year or less falls under short-term capital gains rules, which means the federal government taxes the gain as ordinary income at standard tax brackets. You can review how this contrasts with investment structures in our guide to ordinary income vs capital gains tax.

Property held for more than one year qualifies for long-term capital gains treatment, which applies preferential rates of 0%, 15%, or 20%. The rate that applies to your transaction depends on your overall taxable income for the year of sale. The exact income brackets governing the 0%, 15%, and 20% thresholds change annually, so review IRS Topic 409, capital gains and losses to confirm your specific bracket.

Higher-income real estate sellers must also account for the Net Investment Income Tax (NIIT). The NIIT adds a 3.8% surtax on net investment income, including real estate capital gains, for taxpayers with modified adjusted gross income exceeding $200,000 for single filers or $250,000 for married couples filing jointly. Congress set these statutory thresholds without inflation adjustments, so appreciation can push more sellers over them over time.

California State Income Tax on Capital Assets

California has no separate or reduced capital gains tax rate for real estate sales. The state taxes all net capital gains as standard ordinary income through its progressive bracket schedule, regardless of whether you held the property for six months or thirty years. This approach exposes California property sellers to standard state income tax brackets on every dollar of non-excluded profit.

California state income tax rates reach a top marginal bracket of 12.3%, with an additional 1% Mental Health Services Tax assessed on taxable income over $1,000,000. This brings the top marginal state rate to 13.3% on qualifying real estate earnings. You should consult the California Franchise Tax Board to identify the state income brackets that correspond to your household income level.

Because state rates run alongside federal rates, combined taxation can consume a substantial share of profit on non-primary assets. Sellers looking at inherited estates should also review our overview of capital gains tax on inherited property to see how basis resets alter these calculations, while older owners can evaluate capital gains tax for seniors before disposing of long-held assets.

Primary Residence Exclusions Under Section 121

The primary residence exclusion under Internal Revenue Code Section 121 shields large property gains from both federal and state tax bills. To qualify, you must have owned the property and used it as your principal residence for at least two of the five years immediately preceding the date of sale. Qualified single filers can exclude up to $250,000 of gain, while married couples filing jointly can exclude up to $500,000.

California tax law generally conforms to this federal exclusion, generally applying the same ownership and residency tests. Taxpayers can typically claim this exclusion once every two years, as detailed in IRS Topic 701, sale of your home. When your gain falls within these boundaries, you pay no federal or California capital gains tax on the excluded amount.

Looking back at our worked example with a $396,000 total gain illustrates the power of this exclusion. A married couple filing jointly who meets the residency test can exclude up to $500,000, which means none of the $396,000 gain is subject to state or federal tax. A single taxpayer with the same transaction excludes $250,000, leaving a net taxable capital gain of $146,000 ($396,000 minus $250,000) that remains exposed to both federal capital gains rates and California state income brackets.

Rental Property Considerations and Depreciation Recapture

A property that was not your main home for 2 of the last 5 years does not qualify for the primary residence exclusion, and selling a rental adds depreciation adjustments. When you claim depreciation deductions during the years a property is rented, those deductions decrease your adjusted basis. A lower basis directly expands your net capital gain when you eventually sell the asset.

Federal tax law divides profits from depreciated rental assets into standard capital gains and unrecaptured Section 1250 gain. The portion of your profit that reflects past depreciation deductions faces a federal tax rate capped at 25%, rather than the standard 15% or 20% long-term rates. To calculate your accumulated depreciation deductions before listing your property, plug your acquisition timeline into our depreciation calculator and estimate tax on rental income with our rental income tax calculator.

Investors can defer gains by executing an exchange under Section 1031 into like-kind real estate. A Section 1031 exchange can defer the gain. If you exchange California real estate for replacement property located outside the state, you must file California Form FTB 3840 annually with the Franchise Tax Board. California tracks the deferral through this annual report until you execute a taxable sale. You can compare this deferral mechanism with other tax strategies in our guide on 1031 exchange vs Opportunity Zone.

Nonresident Escrow Withholding Rules Under Form 593

California enforces upfront tax collection on real estate closings using Form 593 to prevent sellers from avoiding state obligations. When a property sale closes, the escrow officer must generally withhold 3 1/3% of the gross sale price unless the seller qualifies for a statutory exemption. This withholding applies to sellers who are nonresidents of California, as well as to resident sellers disposing of properties that do not serve as their principal residence.

This 3 1/3% escrow deduction is a prepayment toward anticipated state taxes rather than an added assessment. The amount withheld is credited against your California tax liability when you file your return. Sellers who qualify for an exemption can certify it on Form 593 at escrow.

Sellers who move out of California before listing their real estate remain subject to California taxation because the property itself sits in the state. For vacant land, see our guide to how to avoid capital gains tax on land sale. Verify your residency classification and withholding status directly with your escrow officer and the California Franchise Tax Board to ensure correct paperwork is submitted before closing.

Frequently asked questions