{"id":2625,"date":"2026-03-16T16:47:01","date_gmt":"2026-03-16T16:47:01","guid":{"rendered":"https:\/\/assessorstg.wpengine.com\/?page_id=2625"},"modified":"2026-04-13T23:16:43","modified_gmt":"2026-04-13T23:16:43","slug":"property-tax-calendar","status":"publish","type":"page","link":"https:\/\/www.acassessor.org\/zh_hk\/property-tax-calendar\/","title":{"rendered":"Property Tax Calendar"},"content":{"rendered":"[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.27.6&#8243; custom_margin=&#8221;0px|||||&#8221; custom_padding=&#8221;0px||0px|||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.27.6&#8243; custom_margin=&#8221;0px|auto|0px|auto||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_sidebar _builder_version=&#8221;4.27.5&#8243; body_font=&#8221;||||on||||&#8221; body_text_color=&#8221;#0a4a8a&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_sidebar][\/et_pb_column][et_pb_column type=&#8221;3_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.27.6&#8243; global_colors_info=&#8221;{}&#8221;]\n<style>.page-id-2625 .entry-title.main_title { display: none !important; } @media (max-width: 980px) { body.et_left_sidebar #content-area { display: flex !important; flex-direction: column !important; } body.et_left_sidebar #sidebar { order: -1 !important; margin-bottom: 20px !important; width: 100% !important; max-width: 100% !important; float: none !important; padding: 0 !important; padding-bottom: 0 !important; height: auto !important; } body.et_left_sidebar #left-area { order: 1 !important; width: 100% !important; max-width: 100% !important; float: none !important; padding-left: 0 !important; } }<\/style>\n<h1 style=\"color: #1a5276 !important; font-weight: normal; font-size: 2em; border-bottom: 3px solid #2980b9; padding-bottom: 10px; margin-bottom: 20px;\">Property Tax Calendar<\/h1>\n<p><a href=\"#main-content\" class=\"skip-link\" style=\"position:absolute;top:-40px;left:0;background:#1a5276;color:#fff;padding:8px 16px;z-index:10000;font-size:0.95rem;text-decoration:none;border-radius:0 0 4px 0;transition:top 0.2s;\" onfocus=\"this.style.top='0'\" onblur=\"this.style.top='-40px'\">Skip to main content<\/a><\/p>\n<style>\na:focus-visible{outline:2px solid #2980b9!important;outline-offset:2px!important;box-shadow:0 0 0 4px rgba(41,128,185,0.3)!important;}\n\/* ADA Enhancement: Reduced Motion *\/\n@media (prefers-reduced-motion: reduce) {\n  *, *::before, *::after {\n    animation-duration: 0.01ms !important;\n    animation-iteration-count: 1 !important;\n    transition-duration: 0.01ms !important;\n    scroll-behavior: auto !important;\n  }\n}\n\/* ADA Enhancement: High Contrast Mode *\/\n@media (forced-colors: active) {\n  a { text-decoration: underline !important; }\n  [role=\"listitem\"] { border: 2px solid LinkText !important; }\n  .skip-link { color: LinkText !important; background: Canvas !important; }\n  h2, h3 { border-bottom: 1px solid CanvasText; }\n}\n\/* ADA Enhancement: Print Stylesheet *\/\n@media print {\n  .skip-link, nav, .no-print { display: none !important; }\n  body { font-size: 12pt !important; color: #000 !important; background: #fff !important; }\n  a { color: #000 !important; text-decoration: underline !important; }\n  a[href]::after { content: \" (\" attr(href) \")\"; font-size: 0.8em; }\n  a[href^=\"#\"]::after, a[href^=\"javascript\"]::after { content: \"\" !important; }\n  h2, h3 { page-break-after: avoid; }\n  table { border-collapse: collapse !important; }\n  th, td { border: 1px solid #000 !important; padding: 4px !important; }\n}\n\/* ADA Enhancement: Link Underlines (WCAG 1.4.1) *\/\n#main-content a:not(.skip-link):not([role=\"button\"]) {\n  text-decoration: underline;\n  text-underline-offset: 2px;\n}\n#main-content a:not(.skip-link):not([role=\"button\"]):hover {\n  text-decoration-thickness: 2px;\n}\n<\/style>\n<div id=\"main-content\" role=\"main\" lang=\"en\" aria-label=\"Property Tax Calendar - Key Dates and Deadlines\">\n<div style=\"max-width:1100px;margin:0 auto;padding:20px;font-family:Arial,Helvetica,sans-serif;\">\n<style>.entry-title.main_title { display: none !important; }<\/style>\n<p style=\"font-size:1.1em;color:#555;margin-bottom:30px;\">Important dates and deadlines for property owners, businesses, and tax professionals in Alameda County. All dates apply to the current fiscal year unless noted.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin-bottom:30px;\" aria-label=\"Annual property tax calendar with key dates and deadlines\">\n<caption>Key Property Tax Dates for Alameda County<\/caption>\n<thead>\n<tr style=\"background:#1a5276;color:#fff;\">\n<th scope=\"col\" style=\"padding:14px 16px;text-align:left;border:1px solid #154360;width:160px;\">Date<\/th>\n<th scope=\"col\" style=\"padding:14px 16px;text-align:left;border:1px solid #154360;\">Event \/ Deadline<\/th>\n<th scope=\"col\" style=\"padding:14px 16px;text-align:left;border:1px solid #154360;width:180px;\">Who It Affects<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background:#f0f7fa;\">\n<th scope=\"row\" style=\"padding:12px 16px;border:1px solid #ddd;font-weight:bold;color:#1a5276;\">January 1<\/th>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\"><strong>Lien Date<\/strong> \u2014 Property taxes for the upcoming fiscal year attach to the property as of this date. Value and ownership are determined as of 12:01 AM.<\/td>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\">All property owners<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"padding:12px 16px;border:1px solid #ddd;font-weight:bold;color:#1a5276;\">February 15<\/th>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\"><strong>Exemption Filing Deadline<\/strong> \u2014 Last day to file Homeowners&#8217; and Disabled Veterans&#8217; Exemption claims for full exemption value. Late claims (through Dec 10) receive 80%.<\/td>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\">Homeowners, Veterans<\/td>\n<\/tr>\n<tr style=\"background:#f0f7fa;\">\n<th scope=\"row\" style=\"padding:12px 16px;border:1px solid #ddd;font-weight:bold;color:#1a5276;\">April 1<\/th>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\"><strong>Business Property Statements Due<\/strong> \u2014 Businesses must file Form 571-L reporting all taxable business personal property.<\/td>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\">Business owners<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"padding:12px 16px;border:1px solid #ddd;font-weight:bold;color:#1a5276;\">April 10<\/th>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\"><strong>Second Installment Due<\/strong> \u2014 Second installment of property taxes due. Becomes delinquent after this date (penalties apply).<\/td>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\">All property owners<\/td>\n<\/tr>\n<tr style=\"background:#f0f7fa;\">\n<th scope=\"row\" style=\"padding:12px 16px;border:1px solid #ddd;font-weight:bold;color:#1a5276;\">May 7<\/th>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\"><strong>Business Property Penalty Date<\/strong> \u2014 10% penalty applied to late-filed business property statements.<\/td>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\">Business owners<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"padding:12px 16px;border:1px solid #ddd;font-weight:bold;color:#1a5276;\">July 1<\/th>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\"><strong>Fiscal Year Begins<\/strong> \u2014 New fiscal year for property tax purposes (July 1 through June 30).<\/td>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\">All property owners<\/td>\n<\/tr>\n<tr style=\"background:#f0f7fa;\">\n<th scope=\"row\" style=\"padding:12px 16px;border:1px solid #ddd;font-weight:bold;color:#1a5276;\">July 2<\/th>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\"><strong>Assessment Roll Delivered<\/strong> \u2014 Assessor delivers the annual assessment roll to the Auditor-Controller.<\/td>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\">Assessor \/ Auditor<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"padding:12px 16px;border:1px solid #ddd;font-weight:bold;color:#1a5276;\">September 15<\/th>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\"><strong>Assessment Appeal Deadline<\/strong> \u2014 Last day to file a formal appeal of your assessed value with the Assessment Appeals Board for the current roll.<\/td>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\">Property owners<\/td>\n<\/tr>\n<tr style=\"background:#f0f7fa;\">\n<th scope=\"row\" style=\"padding:12px 16px;border:1px solid #ddd;font-weight:bold;color:#1a5276;\">November 1<\/th>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\"><strong>First Installment Due<\/strong> \u2014 First installment of property taxes due for the current fiscal year.<\/td>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\">All property owners<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"padding:12px 16px;border:1px solid #ddd;font-weight:bold;color:#1a5276;\">December 10<\/th>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\"><strong>First Installment Delinquent<\/strong> \u2014 Penalty applies if first installment is not paid by this date. Also the last day for late exemption claims (80% value).<\/td>\n<td style=\"padding:12px 16px;border:1px solid #ddd;\">All property owners<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"background:#fef9e7;border:2px solid #f39c12;border-radius:8px;padding:20px;margin-bottom:30px;\" role=\"note\" aria-label=\"Important notes about property tax dates\">\n<h2 style=\"color:#1a5276;margin-top:0;font-size:1.2em;\">Important Notes<\/h2>\n<ul style=\"color:#555;line-height:1.9;\">\n<li>If a deadline falls on a weekend or holiday, the due date is extended to the next business day.<\/li>\n<li>The fiscal year runs from <strong>July 1 through June 30<\/strong>.<\/li>\n<li>Supplemental tax bills have their own separate due dates \u2014 check your supplemental bill for details.<\/li>\n<li>Property tax payments are made to the <a href=\"https:\/\/treasurer.acgov.org\/\" target=\"_blank\" rel=\"noopener noreferrer\" aria-label=\"Alameda County Treasurer-Tax Collector website for making payments (opens in new tab)\">Treasurer-Tax Collector<\/a>, not the Assessor.<\/li>\n<\/ul><\/div>\n<div style=\"background:#e8f4fd;border-radius:8px;padding:24px;text-align:center;\" role=\"complementary\" aria-label=\"Contact information for property tax questions\">\n<h2 style=\"color:#1a5276;margin-top:0;\">Questions About Dates or Deadlines?<\/h2>\n<p style=\"color:#555;\">Contact the Assessor&#8217;s Office for assessment-related dates, or the Tax Collector for payment deadlines.<\/p>\n<p><strong>Assessor:<\/strong> <a href=\"tel:5102723787\" aria-label=\"Call the Assessor's Office\">(510) 272-3787<\/a> | <strong>Tax Collector:<\/strong> <a href=\"tel:5102723787\" aria-label=\"Call the Tax Collector's Office\">(510) 272-6800<\/a><\/p>\n<\/p><\/div>\n<\/div>\n<\/div>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]\n","protected":false},"excerpt":{"rendered":"<p>Property Tax Calendar Skip to main content Important dates and deadlines for property owners, businesses, and tax professionals in Alameda County. All dates apply to the current fiscal year unless noted. Key Property Tax Dates for Alameda County Date Event \/ Deadline Who It Affects January 1 Lien Date \u2014 Property taxes for the upcoming [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-2625","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Property Tax Calendar - Alameda County Assessor<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.acassessor.org\/zh_hk\/property-tax-calendar\/\" \/>\n<meta property=\"og:locale\" content=\"zh_HK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Property Tax Calendar - Alameda County Assessor\" \/>\n<meta property=\"og:description\" content=\"Property Tax Calendar Skip to main content Important dates and deadlines for property owners, businesses, and tax professionals in Alameda County. 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