{"id":2223,"date":"2026-01-05T21:03:18","date_gmt":"2026-01-06T02:03:18","guid":{"rendered":"https:\/\/accoheart.com\/?p=2223"},"modified":"2026-03-30T19:26:53","modified_gmt":"2026-03-31T00:26:53","slug":"quarterly-tax-guide-deadlines-and-calculations-for-2026","status":"publish","type":"post","link":"https:\/\/accoheart.com\/es\/quarterly-tax-guide-deadlines-and-calculations-for-2026\/","title":{"rendered":"Quarterly Tax Guide: Deadlines and Calculations for 2026"},"content":{"rendered":"\n<div class=\"wp-block-uagb-image uagb-block-d1228078 wp-block-uagb-image--layout-default wp-block-uagb-image--effect-static wp-block-uagb-image--align-none\"><figure class=\"wp-block-uagb-image__figure\"><img decoding=\"async\" src=\"https:\/\/accoheart.com\/wp-content\/uploads\/2026\/01\/Quarterly-Tax-Guide-Deadlines-and-Calculations-for-2026-2-1024x572.jpg\" alt=\"Quarterly Tax Guide Deadlines and Calculations for 2026 (2)\" class=\"uag-image-2229\" width=\"1024\" height=\"572\" title=\"Quarterly Tax Guide Deadlines and Calculations for 2026 (2)\" loading=\"lazy\" role=\"img\" \/><\/figure><\/div>\n\n\n\n<p>For many new entrepreneurs, the biggest shock isn&#8217;t just the amount of tax they owe\u2014it\u2019s <em>when<\/em> they have to pay it. Unlike a traditional job where taxes are taken out of every paycheck, the U.S. tax system for business owners is a <strong>&#8220;pay-as-you-go&#8221;<\/strong> system.<\/p>\n\n\n\n<p>If you wait until April to pay your total tax bill, you will likely be met with an &#8220;Underpayment of Estimated Tax&#8221; penalty. To avoid this, you must make <strong>Quarterly Estimated Tax Payments.<\/strong><\/p>\n\n\n\n<p>Here is everything you need to know to stay compliant in 2026.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Who is Required to Pay Quarterly Taxes?<\/h3>\n\n\n\n<p>As a general rule, you must make estimated tax payments for the 2026 tax year if both of the following apply:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You expect to owe at least <strong>$1,000<\/strong> in tax for 2026 after subtracting your withholding and credits.<\/li>\n\n\n\n<li>You expect your withholding and credits to be less than the smaller of:\n<ul class=\"wp-block-list\">\n<li>90% of the tax to be shown on your 2026 tax return.<\/li>\n\n\n\n<li>100% of the tax shown on your 2025 tax return.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>This applies to sole proprietors, partners, S-Corporation shareholders, and freelancers.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. The 2026 Quarterly Deadline Calendar<\/h3>\n\n\n\n<p>Missing a deadline by even one day can trigger interest charges. Mark these dates in your calendar now:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>1st Payment (Jan 1 \u2013 March 31):<\/strong> Due <strong>April 15, 2026<\/strong><\/li>\n\n\n\n<li><strong>2nd Payment (April 1 \u2013 May 31):<\/strong> Due <strong>June 15, 2026<\/strong><\/li>\n\n\n\n<li><strong>3rd Payment (June 1 \u2013 Aug 31):<\/strong> Due <strong>September 15, 2026<\/strong><\/li>\n\n\n\n<li><strong>4th Payment (Sept 1 \u2013 Dec 31):<\/strong> Due <strong>January 15, 2027<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. How to Avoid Penalties: The &#8220;Safe Harbor&#8221; Rule<\/h3>\n\n\n\n<p>The IRS doesn&#8217;t expect you to know exactly how much you will earn by the end of the year. To protect you from penalties, they offer the <strong>Safe Harbor<\/strong> rule. You will not owe a penalty if you pay:<\/p>\n\n\n\n<p>\u2714 <strong>The 90% Rule<\/strong> Pay at least 90% of the tax you will owe for the current year (2026).<\/p>\n\n\n\n<p>\u2714 <strong>The 100% Rule (Prior Year)<\/strong> Pay 100% of the tax shown on your 2025 return. This is the safest way to avoid penalties if your income has increased significantly this year.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><em>Note: If your Adjusted Gross Income (AGI) was over $150,000, you must pay 110% of the prior year&#8217;s tax.<\/em><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. How to Calculate Your Payment Amount<\/h3>\n\n\n\n<p>To calculate your estimated tax, you must estimate your expected adjusted gross income, taxable income, taxes, deductions, and credits for the year.<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Estimate your Profit:<\/strong> Take your expected total income and subtract your business expenses.<\/li>\n\n\n\n<li><strong>Calculate Self-Employment Tax:<\/strong> This is currently 15.3%.<\/li>\n\n\n\n<li><strong>Calculate Income Tax:<\/strong> Apply your estimated tax bracket.<\/li>\n\n\n\n<li><strong>Divide by Four:<\/strong> Split the total into four equal payments.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">5. Why Quarterly Payments Matter for Your Cash Flow<\/h3>\n\n\n\n<p>Aside from avoiding penalties, paying quarterly helps your business maintain a healthy cash flow.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>No &#8220;April Surprise&#8221;:<\/strong> It\u2019s much easier to pay $5,000 four times a year than to come up with $20,000 all at once in April.<\/li>\n\n\n\n<li><strong>Accurate Financial Planning:<\/strong> Knowing your tax liability throughout the year allows you to know exactly how much &#8220;real&#8221; profit you have left to reinvest in your business.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">How Accounting Heart Keeps You Ahead of the IRS<\/h3>\n\n\n\n<p>Calculating estimated taxes can be complex, especially if your income fluctuates. At <strong>Accounting Heart<\/strong>, we take the guesswork out of the process so you can focus on running your business.<\/p>\n\n\n\n<p>We help you:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Calculate Accurate Estimates:<\/strong> We look at your real-time Profit &amp; Loss to ensure you aren&#8217;t overpaying or underpaying.<\/li>\n\n\n\n<li><strong>Avoid Penalties:<\/strong> We ensure you meet the &#8220;Safe Harbor&#8221; requirements every single quarter.<\/li>\n\n\n\n<li><strong>Manage Deadlines:<\/strong> We send you reminders and help you make your payments electronically through the IRS systems.<\/li>\n\n\n\n<li><strong>Optimize Deductions:<\/strong> We find ways to lower your taxable income throughout the year, not just at the end.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Stop Guessing and Start Growing<\/h3>\n\n\n\n<p>Don&#8217;t let the fear of a tax penalty slow down your business growth. Let the experts handle the calculations.<\/p>\n\n\n\n<p>\ud83d\udc49 <strong><a href=\"https:\/\/accoheart.com\/contact\/\">[Contact Accounting Heart today]<\/a><\/strong> to set up your 2026 Quarterly Tax Strategy and ensure you never pay a penny more in penalties than you have to.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>For many new entrepreneurs, the biggest shock isn&#8217;t just the amount of tax they owe\u2014it\u2019s when they have to pay it. Unlike a traditional job where taxes are taken out [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2229,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2223","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sin-categoria"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Quarterly Tax Guide: Deadlines and Calculations for 2026 -<\/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:\/\/accoheart.com\/es\/quarterly-tax-guide-deadlines-and-calculations-for-2026\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Quarterly Tax Guide: Deadlines and Calculations for 2026 -\" \/>\n<meta property=\"og:description\" content=\"For many new entrepreneurs, the biggest shock isn&#8217;t just the amount of tax they owe\u2014it\u2019s when they have to pay it. 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