{"id":4684,"date":"2026-03-21T19:05:29","date_gmt":"2026-03-22T01:05:29","guid":{"rendered":"https:\/\/victorvizcaino.com\/blog\/?p=4684"},"modified":"2026-03-21T19:05:29","modified_gmt":"2026-03-22T01:05:29","slug":"calculate-isr-freelancers-small-businesses","status":"publish","type":"post","link":"https:\/\/victorvizcaino.com\/blog\/calculate-isr-freelancers-small-businesses\/","title":{"rendered":"\ud83d\udcca How to Calculate ISR for Freelancers and Small Businesses in Mexico"},"content":{"rendered":"<p class=\"ds-markdown-paragraph\">Understanding how\u00a0<strong>ISR (Impuesto Sobre la Renta)<\/strong>\u00a0is calculated is essential for any freelancer, independent professional, or small business owner in Mexico. Unlike a flat tax, ISR uses a\u00a0<strong>progressive rate structure<\/strong>\u2014meaning the more you earn, the higher the percentage you pay, but only on the portion of income within each bracket.<\/p>\n<p class=\"ds-markdown-paragraph\">In this article, I explain how ISR works, how to calculate it, and provide real examples for freelancers and small businesses.<\/p>\n<hr \/>\n<h2>\ud83d\udccc What Is ISR?<\/h2>\n<p class=\"ds-markdown-paragraph\"><strong>ISR (Income Tax)<\/strong>\u00a0is a direct tax applied to the income earned by individuals and legal entities. It is calculated on\u00a0<strong>net income<\/strong>\u2014income after allowed deductions\u2014using a progressive rate table updated annually by the SAT.<\/p>\n<blockquote>\n<p class=\"ds-markdown-paragraph\">\ud83d\udca1\u00a0<strong>ISR is not a flat percentage of your total income. Different portions of your income are taxed at different rates.<\/strong><\/p>\n<\/blockquote>\n<hr \/>\n<h2>\ud83e\uddfe How Progressive Taxation Works<\/h2>\n<p class=\"ds-markdown-paragraph\">Progressive taxation means that as your income increases, the tax rate applied to the\u00a0<strong>additional<\/strong>\u00a0income increases. Your entire income is not taxed at your highest rate\u2014only the portion that falls into each bracket.<\/p>\n<h3>Example: Understanding Progressive Rates<\/h3>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th>Income Bracket (MXN)<\/th>\n<th>Rate<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>$0 &#8211; $8,000<\/td>\n<td>1.92%<\/td>\n<\/tr>\n<tr>\n<td>$8,001 &#8211; $10,000<\/td>\n<td>6.40%<\/td>\n<\/tr>\n<tr>\n<td>$10,001 &#8211; $20,000<\/td>\n<td>10.88%<\/td>\n<\/tr>\n<tr>\n<td>(and so on&#8230;)<\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ds-markdown-paragraph\">If your annual income is $15,000:<\/p>\n<ul>\n<li class=\"ds-markdown-paragraph\">The first $8,000 is taxed at 1.92%<\/li>\n<li class=\"ds-markdown-paragraph\">The next $2,000 is taxed at 6.40%<\/li>\n<li class=\"ds-markdown-paragraph\">The remaining $5,000 is taxed at 10.88%<\/li>\n<\/ul>\n<blockquote>\n<p class=\"ds-markdown-paragraph\">\ud83d\udca1\u00a0<strong>Your effective tax rate (total tax \u00f7 total income) will always be lower than your top marginal rate.<\/strong><\/p>\n<\/blockquote>\n<hr \/>\n<h2>\ud83d\udccb ISR Rate Table for Individuals (Approximate)<\/h2>\n<p class=\"ds-markdown-paragraph\">The SAT updates these brackets annually. The following are approximate rates for illustration:<\/p>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th>Lower Limit (MXN)<\/th>\n<th>Upper Limit (MXN)<\/th>\n<th>Marginal Rate<\/th>\n<th>Tax on Lower Limit<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>$0<\/td>\n<td>$8,000<\/td>\n<td>1.92%<\/td>\n<td>$0<\/td>\n<\/tr>\n<tr>\n<td>$8,000<\/td>\n<td>$10,000<\/td>\n<td>6.40%<\/td>\n<td>$154<\/td>\n<\/tr>\n<tr>\n<td>$10,000<\/td>\n<td>$20,000<\/td>\n<td>10.88%<\/td>\n<td>$282<\/td>\n<\/tr>\n<tr>\n<td>$20,000<\/td>\n<td>$35,000<\/td>\n<td>16.00%<\/td>\n<td>$1,370<\/td>\n<\/tr>\n<tr>\n<td>$35,000<\/td>\n<td>$60,000<\/td>\n<td>21.36%<\/td>\n<td>$3,770<\/td>\n<\/tr>\n<tr>\n<td>$60,000<\/td>\n<td>$120,000<\/td>\n<td>23.52%<\/td>\n<td>$9,110<\/td>\n<\/tr>\n<tr>\n<td>$120,000<\/td>\n<td>$250,000<\/td>\n<td>30.00%<\/td>\n<td>$23,222<\/td>\n<\/tr>\n<tr>\n<td>$250,000<\/td>\n<td>$500,000<\/td>\n<td>32.00%<\/td>\n<td>$62,222<\/td>\n<\/tr>\n<tr>\n<td>$500,000<\/td>\n<td>$1,000,000<\/td>\n<td>34.00%<\/td>\n<td>$142,222<\/td>\n<\/tr>\n<tr>\n<td>$1,000,000<\/td>\n<td>$3,000,000<\/td>\n<td>35.00%<\/td>\n<td>$312,222<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<blockquote>\n<p class=\"ds-markdown-paragraph\">\ud83d\udca1\u00a0<strong>&#8220;Tax on Lower Limit&#8221; is the accumulated tax from all previous brackets. This simplifies calculation.<\/strong><\/p>\n<\/blockquote>\n<hr \/>\n<h2>\ud83d\udcca How to Calculate ISR: Step by Step<\/h2>\n<h3>Step 1: Determine Your Annual Income<\/h3>\n<p class=\"ds-markdown-paragraph\">Calculate your total income from all sources for the year.<\/p>\n<h3>Step 2: Apply Deductions<\/h3>\n<p class=\"ds-markdown-paragraph\">Subtract allowed deductions to determine your\u00a0<strong>net taxable income<\/strong>.<\/p>\n<p class=\"ds-markdown-paragraph\">Common deductions for individuals:<\/p>\n<ul>\n<li class=\"ds-markdown-paragraph\">Medical expenses<\/li>\n<li class=\"ds-markdown-paragraph\">Dental expenses<\/li>\n<li class=\"ds-markdown-paragraph\">School tuition (private schools)<\/li>\n<li class=\"ds-markdown-paragraph\">Mortgage interest<\/li>\n<li class=\"ds-markdown-paragraph\">Voluntary retirement contributions<\/li>\n<li class=\"ds-markdown-paragraph\">Professional fees (for freelancers: expenses directly related to your activity)<\/li>\n<\/ul>\n<h3>Step 3: Find Your Bracket<\/h3>\n<p class=\"ds-markdown-paragraph\">Locate which bracket your net taxable income falls into.<\/p>\n<h3>Step 4: Calculate the Tax<\/h3>\n<p class=\"ds-markdown-paragraph\">Use the formula:<\/p>\n<div class=\"md-code-block md-code-block-light\">\n<pre>ISR = (Income - Lower Limit) \u00d7 Marginal Rate + Tax on Lower Limit<\/pre>\n<\/div>\n<hr \/>\n<h2>\ud83d\udcdd Example 1: Freelancer with $200,000 Annual Income<\/h2>\n<p class=\"ds-markdown-paragraph\"><strong>Scenario:<\/strong> A freelance graphic designer earns $200,000 MXN annually with $20,000 in deductions.<\/p>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th>Step<\/th>\n<th>Calculation<\/th>\n<th>Result<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Gross income<\/td>\n<td><\/td>\n<td>$200,000<\/td>\n<\/tr>\n<tr>\n<td>Deductions<\/td>\n<td><\/td>\n<td>($20,000)<\/td>\n<\/tr>\n<tr>\n<td><strong>Net taxable income<\/strong><\/td>\n<td><\/td>\n<td><strong>$180,000<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ds-markdown-paragraph\"><strong>Finding the bracket:<\/strong> $180,000 falls between $120,000 and $250,000<\/p>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th>Factor<\/th>\n<th>Value<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Lower limit<\/td>\n<td>$120,000<\/td>\n<\/tr>\n<tr>\n<td>Marginal rate<\/td>\n<td>30.00%<\/td>\n<\/tr>\n<tr>\n<td>Tax on lower limit<\/td>\n<td>$23,222<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ds-markdown-paragraph\"><strong>Apply the formula:<\/strong><\/p>\n<div class=\"md-code-block md-code-block-light\">\n<pre>ISR = ($180,000 - $120,000) \u00d7 30.00% + $23,222\r\nISR = $60,000 \u00d7 0.30 + $23,222\r\nISR = $18,000 + $23,222\r\nISR = $41,222<\/pre>\n<\/div>\n<p class=\"ds-markdown-paragraph\"><strong>Results:<\/strong><\/p>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th>Concept<\/th>\n<th>Amount (MXN)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Net taxable income<\/td>\n<td>$180,000<\/td>\n<\/tr>\n<tr>\n<td>Annual ISR<\/td>\n<td>$41,222<\/td>\n<\/tr>\n<tr>\n<td>Effective tax rate<\/td>\n<td>22.9%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<blockquote>\n<p class=\"ds-markdown-paragraph\">\ud83d\udca1\u00a0<strong>The freelancer pays 22.9% of their net income in ISR, even though their top marginal rate is 30%.<\/strong><\/p>\n<\/blockquote>\n<hr \/>\n<h2>\ud83d\udcdd Example 2: Freelancer with $1,500,000 Annual Income<\/h2>\n<p class=\"ds-markdown-paragraph\"><strong>Scenario:<\/strong> A freelance consultant earns $1,500,000 MXN annually with $100,000 in deductions.<\/p>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th>Step<\/th>\n<th>Calculation<\/th>\n<th>Result<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Gross income<\/td>\n<td><\/td>\n<td>$1,500,000<\/td>\n<\/tr>\n<tr>\n<td>Deductions<\/td>\n<td><\/td>\n<td>($100,000)<\/td>\n<\/tr>\n<tr>\n<td><strong>Net taxable income<\/strong><\/td>\n<td><\/td>\n<td><strong>$1,400,000<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ds-markdown-paragraph\"><strong>Finding the bracket:<\/strong> $1,400,000 falls between $1,000,000 and $3,000,000<\/p>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th>Factor<\/th>\n<th>Value<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Lower limit<\/td>\n<td>$1,000,000<\/td>\n<\/tr>\n<tr>\n<td>Marginal rate<\/td>\n<td>35.00%<\/td>\n<\/tr>\n<tr>\n<td>Tax on lower limit<\/td>\n<td>$312,222<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ds-markdown-paragraph\"><strong>Apply the formula:<\/strong><\/p>\n<div class=\"md-code-block md-code-block-light\">\n<pre>ISR = ($1,400,000 - $1,000,000) \u00d7 35.00% + $312,222\r\nISR = $400,000 \u00d7 0.35 + $312,222\r\nISR = $140,000 + $312,222\r\nISR = $452,222<\/pre>\n<\/div>\n<p class=\"ds-markdown-paragraph\"><strong>Results:<\/strong><\/p>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th>Concept<\/th>\n<th>Amount (MXN)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Net taxable income<\/td>\n<td>$1,400,000<\/td>\n<\/tr>\n<tr>\n<td>Annual ISR<\/td>\n<td>$452,222<\/td>\n<\/tr>\n<tr>\n<td>Effective tax rate<\/td>\n<td>32.3%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<blockquote>\n<p class=\"ds-markdown-paragraph\">\ud83d\udca1\u00a0<strong>The effective rate (32.3%) is lower than the top marginal rate (35%) because lower brackets were taxed at lower rates.<\/strong><\/p>\n<\/blockquote>\n<hr \/>\n<h2>\ud83d\udcdd Example 3: Small Business Owner (Incorporated)<\/h2>\n<p class=\"ds-markdown-paragraph\"><strong>Scenario:<\/strong>\u00a0A small business with $2,000,000 MXN annual profit.<\/p>\n<p class=\"ds-markdown-paragraph\">For legal entities (personas morales), ISR is calculated differently. The corporate rate is a flat\u00a0<strong>30%<\/strong> on net profits.<\/p>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th>Step<\/th>\n<th>Calculation<\/th>\n<th>Result<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Annual profit<\/td>\n<td><\/td>\n<td>$2,000,000<\/td>\n<\/tr>\n<tr>\n<td>ISR rate<\/td>\n<td>30%<\/td>\n<td>0.30<\/td>\n<\/tr>\n<tr>\n<td><strong>Annual ISR<\/strong><\/td>\n<td>$2,000,000 \u00d7 0.30<\/td>\n<td><strong>$600,000<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Net after tax<\/strong><\/td>\n<td><\/td>\n<td><strong>$1,400,000<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<blockquote>\n<p class=\"ds-markdown-paragraph\">\ud83d\udca1\u00a0<strong>Corporations pay a flat rate, not progressive. This is simpler but often results in a higher effective rate than individuals at similar income levels.<\/strong><\/p>\n<\/blockquote>\n<hr \/>\n<h2>\ud83d\udcc5 Monthly Provisional Payments<\/h2>\n<p class=\"ds-markdown-paragraph\">ISR is not paid only once a year. Individuals and businesses make\u00a0<strong>monthly provisional payments<\/strong>\u00a0based on income earned that month.<\/p>\n<h3>How Monthly Payments Work<\/h3>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th>Step<\/th>\n<th>Description<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>1<\/strong><\/td>\n<td>Calculate income for the month<\/td>\n<\/tr>\n<tr>\n<td><strong>2<\/strong><\/td>\n<td>Subtract monthly deductions<\/td>\n<\/tr>\n<tr>\n<td><strong>3<\/strong><\/td>\n<td>Apply the same progressive rate table<\/td>\n<\/tr>\n<tr>\n<td><strong>4<\/strong><\/td>\n<td>Pay the calculated amount by the 17th of the following month<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ds-markdown-paragraph\">At the end of the year, you file an\u00a0<strong>annual declaration<\/strong>\u00a0where you:<\/p>\n<ul>\n<li class=\"ds-markdown-paragraph\">Calculate total annual ISR<\/li>\n<li class=\"ds-markdown-paragraph\">Subtract all monthly payments made<\/li>\n<li class=\"ds-markdown-paragraph\">Pay the difference (or request a refund if you overpaid)<\/li>\n<\/ul>\n<blockquote>\n<p class=\"ds-markdown-paragraph\">\ud83d\udca1\u00a0<strong>Monthly payments are provisional. The annual declaration reconciles what you actually owe.<\/strong><\/p>\n<\/blockquote>\n<hr \/>\n<h2>\ud83d\udccb Summary Table: Examples Compared<\/h2>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th>Scenario<\/th>\n<th>Net Taxable Income<\/th>\n<th>Annual ISR<\/th>\n<th>Effective Rate<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Freelancer A<\/td>\n<td>$180,000<\/td>\n<td>$41,222<\/td>\n<td>22.9%<\/td>\n<\/tr>\n<tr>\n<td>Freelancer B<\/td>\n<td>$1,400,000<\/td>\n<td>$452,222<\/td>\n<td>32.3%<\/td>\n<\/tr>\n<tr>\n<td>Small Corporation<\/td>\n<td>$2,000,000<\/td>\n<td>$600,000<\/td>\n<td>30.0%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<hr \/>\n<h2>\ud83d\udccb Common Deductions for Individuals<\/h2>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th>Deduction<\/th>\n<th>Description<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Medical expenses<\/strong><\/td>\n<td>Doctors, dentists, hospitals, prescriptions<\/td>\n<\/tr>\n<tr>\n<td><strong>School tuition<\/strong><\/td>\n<td>Private schools (preschool through high school)<\/td>\n<\/tr>\n<tr>\n<td><strong>Mortgage interest<\/strong><\/td>\n<td>On your primary residence<\/td>\n<\/tr>\n<tr>\n<td><strong>Retirement contributions<\/strong><\/td>\n<td>Voluntary AFORE contributions<\/td>\n<\/tr>\n<tr>\n<td><strong>Professional expenses<\/strong><\/td>\n<td>Costs directly related to your business activity (for freelancers)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<blockquote>\n<p class=\"ds-markdown-paragraph\">\ud83d\udca1\u00a0<strong>Keep receipts and documentation for all deductions. The SAT can request proof during audits.<\/strong><\/p>\n<\/blockquote>\n<hr \/>\n<h2>\u26a0\ufe0f Common Mistakes in ISR Calculation<\/h2>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th>Mistake<\/th>\n<th>Consequence<\/th>\n<th>Solution<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Ignoring monthly payments<\/strong><\/td>\n<td>Large lump sum at year end<\/td>\n<td>Pay monthly provisions<\/td>\n<\/tr>\n<tr>\n<td><strong>Not claiming deductions<\/strong><\/td>\n<td>Higher tax than necessary<\/td>\n<td>Track and document all eligible expenses<\/td>\n<\/tr>\n<tr>\n<td><strong>Mixing personal and business<\/strong><\/td>\n<td>Audit risk, lost deductions<\/td>\n<td>Separate accounts, clear records<\/td>\n<\/tr>\n<tr>\n<td><strong>Using last year&#8217;s rates<\/strong><\/td>\n<td>Incorrect calculation<\/td>\n<td>Check current SAT rates annually<\/td>\n<\/tr>\n<tr>\n<td><strong>Not filing annual declaration<\/strong><\/td>\n<td>Penalties, fines<\/td>\n<td>File even if no tax is due<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<hr \/>\n<h2>\ud83d\udca1 Best Practices for ISR Compliance<\/h2>\n<p class=\"ds-markdown-paragraph\"><strong>Know Your Bracket<\/strong><br \/>\nUnderstand which bracket your income falls into so you can plan accordingly.<\/p>\n<p class=\"ds-markdown-paragraph\"><strong>Track Deductions Throughout the Year<\/strong><br \/>\nDon&#8217;t wait until December. Keep organized records of all eligible expenses.<\/p>\n<p class=\"ds-markdown-paragraph\"><strong>Set Aside Money Monthly<\/strong><br \/>\nEstimate your ISR liability and set aside funds with every payment you receive.<\/p>\n<p class=\"ds-markdown-paragraph\"><strong>File Monthly Provisions on Time<\/strong><br \/>\nMonthly declarations are due by the 17th of the following month. Late filings incur penalties.<\/p>\n<p class=\"ds-markdown-paragraph\"><strong>File Your Annual Declaration<\/strong><br \/>\nEven if you paid monthly, you must file the annual declaration. Missing this carries penalties.<\/p>\n<p class=\"ds-markdown-paragraph\"><strong>Consult Your Accountant<\/strong><br \/>\nTax laws change. Professional advice ensures accuracy and identifies opportunities.<\/p>\n<blockquote>\n<p class=\"ds-markdown-paragraph\">\ud83d\udca1\u00a0<strong>ISR is not optional. Plan for it, or it will surprise you.<\/strong><\/p>\n<\/blockquote>\n<hr \/>\n<h2>\ud83d\udcda Useful Internal Links<\/h2>\n<ul>\n<li class=\"ds-markdown-paragraph\"><a href=\"https:\/\/victorvizcaino.com\/blog\/vat-income-tax-mexico-iva-isr\/\">IVA and ISR: The Two Pillars of Taxation in Mexico<\/a><\/li>\n<li class=\"ds-markdown-paragraph\"><a href=\"https:\/\/victorvizcaino.com\/blog\/tax-regime-invoicing-mexico\/\">Tax Regime and Invoicing in Mexico<\/a><\/li>\n<li class=\"ds-markdown-paragraph\"><a href=\"https:\/\/victorvizcaino.com\/blog\/income-expenses-financial-foundation\/\">Income and Expenses: The Foundation of Financial Health<\/a><\/li>\n<li class=\"ds-markdown-paragraph\"><a href=\"https:\/\/victorvizcaino.com\/blog\/business-taxes-contribution-society\/\">Taxes: Your Contribution to Society<\/a><\/li>\n<\/ul>\n<hr \/>\n<h2>\u2705 Conclusion<\/h2>\n<p class=\"ds-markdown-paragraph\">Calculating\u00a0<strong>ISR<\/strong>\u00a0doesn&#8217;t have to be intimidating. Once you understand progressive rates, monthly provisions, and the annual declaration, it becomes a manageable process.<\/p>\n<p class=\"ds-markdown-paragraph\"><strong>Remember:<\/strong><\/p>\n<ul>\n<li class=\"ds-markdown-paragraph\">ISR is progressive\u2014different portions of income are taxed at different rates<\/li>\n<li class=\"ds-markdown-paragraph\">Monthly provisional payments prevent a large year-end surprise<\/li>\n<li class=\"ds-markdown-paragraph\">Deductions reduce your taxable income\u2014track them carefully<\/li>\n<li class=\"ds-markdown-paragraph\">The annual declaration reconciles what you paid with what you owe<\/li>\n<li class=\"ds-markdown-paragraph\">Professional advice is worth the investment<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\">Whether you&#8217;re a freelancer, independent professional, or small business owner, understanding your ISR obligation is essential to running a compliant, successful business.<\/p>\n<p class=\"ds-markdown-paragraph\"><strong>Know your income. Track your deductions. Pay your ISR. Grow with confidence.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Understanding how\u00a0ISR (Impuesto Sobre la Renta)\u00a0is calculated is essential for any freelancer, independent professional, or small business owner in Mexico.&hellip;<\/p>\n","protected":false},"author":1,"featured_media":4685,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58,36],"tags":[],"class_list":["post-4684","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-finance","category-planning"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Calculate ISR for Freelancers and Small Businesses<\/title>\n<meta name=\"description\" content=\"Learn how to calculate ISR (Income Tax) in Mexico. Understand progressive rates, monthly payments, and see real examples.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/victorvizcaino.com\/blog\/calculate-isr-freelancers-small-businesses\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Calculate ISR for Freelancers and Small Businesses\" \/>\n<meta property=\"og:description\" content=\"Learn how to calculate ISR (Income Tax) in Mexico. 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