How to Appeal Property Taxes in Sacramento County, California (2026 Guide)

Sacramento County’s 2026 regular assessment appeal window is July 2 through November 30, 2026. File the county-specific BOE-305-AH Assessment Appeal Application as an original signed paper form with the Sacramento County Assessment Appeals Board, 700 H Street, Suite 2450, Sacramento, CA 95814; the filing fee is $30 per application per tax year.

How assessments work in Sacramento County

Sacramento County’s 2026 appeal is about the value that will drive the 2026-27 property tax bill. For a regular “decline in value” appeal, the key valuation date is January 1, 2026—not the date you receive the October tax bill and not today’s market.

The Assessor’s online Assessed Value Look-Up shows two important columns for secured parcels: “This Year’s Prop 13 Assessment,” which is the 2026-27 factored Prop. 13 value, and “This Year’s Assessment,” which is the value your 2026-27 tax bill will be based on. The county says these values are updated twice—at the end of June and in mid-September—so check once early and again before the deadline.

Under Prop. 13, Sacramento County generally reassesses real property only when there is a change in ownership, new construction, or a decline in value. The annual tax rate is the 1% countywide rate plus voter-approved debt; Sacramento County says rates average roughly 1.1% countywide, and the 2025-26 rate book shows actual tax-rate-area totals commonly around 1.04% to 1.20% before fixed direct charges.

A Prop. 8 decline-in-value reduction is temporary. If your January 1 market value is below your factored Prop. 13 value, the Assessor can enroll the lower market value for that year. If the market later recovers, the assessed value can rise by more than 2% in a year until it reaches—but does not exceed—the Prop. 13 cap. Also remember: direct levies and special assessments are not reduced by a Prop. 8 value reduction.

One useful local quality check: the State Board of Equalization’s 2026 Sacramento County sampling survey reported that the county’s 2024-25 roll met assessment-quality requirements and showed an average assessment ratio of 99.82%. That does not mean your parcel is correct, but it does mean you should bring parcel-specific evidence, not just a general complaint that prices are high.

Whether you should appeal

Appeal if you can show that your home’s market value on January 1, 2026 was lower than the enrolled 2026-27 assessed value. Good evidence usually means nearby comparable sales that closed close to January 1, 2026; listings or pending sales are weaker unless they clearly show the market at that time. Focus on homes with similar location, size, condition, lot, school district, and sale date.

Start with the free informal review through the Assessor’s Office. Sacramento County opens the informal review period July 1 through December 31, and there is no charge. An appraiser reviews market data and may process a roll change. But do not let the informal review lull you past the appeal deadline: if November 30 is approaching and you have not received a satisfactory change, file the formal appeal to preserve your rights.

There are no official Sacramento County homeowner “success rate” or median-reduction statistics published by the county that I could verify. The State BOE publishes assessment-appeals workload data, but not a homeowner-friendly median reduction for Sacramento residential appeals. Treat any private website claiming a countywide average reduction as unverified unless it cites official county or BOE data.

Check exemptions before appealing, because some savings are handled by the Assessor—not the Appeals Board. The Homeowners’ Exemption reduces assessed value by $7,000, usually saving about $70 to $80 per year. The Disabled Veterans’ Exemption is much larger: for lien date 2026, Sacramento County lists a basic exemption of $180,671 and a low-income exemption of $271,009 with a 2026 low-income limit of $81,131. Disaster/calamity relief may apply if physical damage is $10,000 or more.

Step-by-step how to file

1. Look up your 2026-27 value. Use the Assessor’s Assessed Value Look-Up by APN. Compare “This Year’s Assessment” with your evidence of January 1, 2026 market value.

2. Request an informal review if time allows. It is free and can fix obvious Prop. 8 issues without a hearing. Still calendar November 30, 2026 for the formal appeal.

3. Use the exact form. Sacramento County requires the current county-specific BOE-305-AH Assessment Appeal Application with Instructions. Related county forms include the Multi-Parcel Form for contiguous parcels, Agent Authorization Form, Extension of Time [R&T Code Section 1604(c)], and Appeal Withdrawal Form.

4. Complete the value section carefully. Your application must state your opinion of value. For a typical homeowner decline-in-value appeal, that is your opinion of the home’s market value as of January 1, 2026. Do not attach a giant evidence package to the application unless required; the county instructions say evidence is presented at the hearing.

5. Choose filing method—paper only. Sacramento County says you may fill the form out online and save it, but the county only accepts paper applications. Local rules say assessment appeal applications may not be filed by fax or electronically, and emailed applications are rejected. Email is useful for questions, not for filing the application.

6. File with fee. Include the $30 non-refundable processing fee per application per year. Mail or deliver the original signed application to:

   Assessment Appeals Board
   700 H Street, Suite 2450
   Sacramento, CA 95814

   In-person filing is accepted at the main office, Monday-Friday, 8:00 a.m. to 5:00 p.m., and at the South County Service Center:

   County Service Center, South
   8239 E. Stockton Boulevard, Suite A
   Sacramento, CA 95828
   Monday-Friday, 8:00 a.m. to 4:00 p.m.

7. Do not stop paying taxes. Filing an appeal does not delay tax-bill due dates. If you win after paying, the county refunds the excess taxes.

What happens after

The appeal authority is the Sacramento County Assessment Appeals Board, administered by the Clerk of the Board and independent of the Assessor, Tax Collector, and Auditor. Filing triggers a review by the Assessor’s Office. If the Assessor, county counsel, and you agree to a reduced value, the result can be put into a written stipulation. If the Board accepts the stipulation at a public meeting, you generally do not need to attend a full evidentiary hearing.

If there is no agreement, your case is scheduled for hearing. Expect a public, quasi-judicial hearing—not a casual customer-service meeting. You or an authorized representative must appear, testify under oath, answer questions, and present evidence. The Assessor’s staff also attends and presents evidence. Sacramento local rules require five copies of evidence for Board hearings; Hearing Officer matters require two copies. For owner-occupied single-family dwellings, the Assessor has the burden of proof if you supplied required information.

The Board can lower, sustain, or increase the value based on the evidence. It cannot change tax rates, waive late-payment penalties, or grant exemptions. Under state law, a hearing and final determination generally must occur within two years of a timely filed application unless you agree to extend time. If written findings of fact are requested, Sacramento County charges $250, and findings are to be provided within 180 days after the decision; otherwise, the Clerk still provides a written notice of decision.

Local tips

Use your actual tax-rate area when estimating savings. As a realistic example, the county’s 2025-26 rate book lists tax-rate area 61-025 at 1.1133% total rate on net value. Suppose your 2026-27 assessed value is $575,000, but three comparable sales support $525,000 as of January 1, 2026. A $50,000 reduction saves about $556.65 in ad valorem tax for that year ($50,000 × 1.1133%). Subtract the $30 filing fee and the first-year net is roughly $526.65. Fixed direct levies, Mello-Roos, utility charges, and similar bill items generally do not shrink.

If you bought after January 1, do not confuse the annual roll with a supplemental assessment. Annual bills use the January 1 lien-date value; supplemental assessments after a purchase or new construction have separate appeal deadlines—generally within 60 days of the supplemental notice or tax bill, whichever rule applies.

Finally, file before you feel “ready” if the deadline is close. You can refine your evidence later, but you cannot fix a missed November 30 regular appeal deadline.