{"id":2821,"date":"2025-09-25T22:38:49","date_gmt":"2025-09-25T22:38:49","guid":{"rendered":"https:\/\/www.cubodeideas.com\/blog\/?p=2821"},"modified":"2025-09-25T22:38:49","modified_gmt":"2025-09-25T22:38:49","slug":"iva-e-isr-en-pymes-conceptos-basicos-y-como-evitar-errores-costosos","status":"publish","type":"post","link":"https:\/\/www.cubodeideas.com\/blog\/negocios\/iva-e-isr-en-pymes-conceptos-basicos-y-como-evitar-errores-costosos\/","title":{"rendered":"IVA e ISR en PYMEs: conceptos b\u00e1sicos y c\u00f3mo evitar errores costosos"},"content":{"rendered":"<p data-start=\"333\" data-end=\"665\">El <strong data-start=\"336\" data-end=\"358\">IVA e ISR en PYMEs<\/strong> son los dos impuestos que m\u00e1s impacto tienen en la operaci\u00f3n diaria de cualquier empresa en M\u00e9xico. Aunque su manejo parece tarea exclusiva de contadores, la verdad es que los errores m\u00e1s graves ocurren cuando los due\u00f1os no entienden c\u00f3mo funcionan, lo que genera multas, recargos o p\u00e9rdidas de liquidez.<\/p>\n<p data-start=\"667\" data-end=\"912\">\ud83d\udc49 Esta gu\u00eda explica de forma pr\u00e1ctica c\u00f3mo funcionan el <strong data-start=\"724\" data-end=\"760\">IVA (Impuesto al Valor Agregado)<\/strong> y el <strong data-start=\"766\" data-end=\"799\">ISR (Impuesto Sobre la Renta)<\/strong> en las PYMEs mexicanas, qu\u00e9 errores debes evitar y c\u00f3mo convertirlos en herramientas de planeaci\u00f3n financiera.<\/p>\n<hr data-start=\"914\" data-end=\"917\" \/>\n<h2 data-start=\"919\" data-end=\"957\">Diferencia entre IVA e ISR en PYMEs<\/h2>\n<p data-start=\"959\" data-end=\"1031\">Aunque ambos son impuestos federales, cumplen funciones muy distintas:<\/p>\n<ul data-start=\"1033\" data-end=\"1324\">\n<li data-start=\"1033\" data-end=\"1180\">\n<p data-start=\"1035\" data-end=\"1180\"><strong data-start=\"1035\" data-end=\"1043\">IVA:<\/strong> Impuesto al consumo. Se cobra en las ventas y se acredita en las compras. No es un costo para la empresa, sino un impuesto trasladado.<\/p>\n<\/li>\n<li data-start=\"1181\" data-end=\"1324\">\n<p data-start=\"1183\" data-end=\"1324\"><strong data-start=\"1183\" data-end=\"1191\">ISR:<\/strong> Impuesto sobre la utilidad. Se calcula restando a los ingresos las deducciones autorizadas. Este s\u00ed es un costo real para la PyME.<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1326\" data-end=\"1431\">\ud83d\udc49 El IVA afecta la <strong data-start=\"1346\" data-end=\"1358\">liquidez<\/strong> (flujo de caja) y el ISR impacta la <strong data-start=\"1395\" data-end=\"1411\">rentabilidad<\/strong> (utilidad final).<\/p>\n<hr data-start=\"1433\" data-end=\"1436\" \/>\n<h2 data-start=\"1438\" data-end=\"1472\">\u00bfC\u00f3mo funciona el IVA en PYMEs?<\/h2>\n<p data-start=\"1474\" data-end=\"1546\">El <strong data-start=\"1477\" data-end=\"1490\">IVA (16%)<\/strong> aplica en la mayor\u00eda de ventas de bienes y servicios.<\/p>\n<ol data-start=\"1548\" data-end=\"1742\">\n<li data-start=\"1548\" data-end=\"1602\">\n<p data-start=\"1551\" data-end=\"1602\"><strong data-start=\"1551\" data-end=\"1570\">IVA trasladado:<\/strong> el que cobras a tus clientes.<\/p>\n<\/li>\n<li data-start=\"1603\" data-end=\"1675\">\n<p data-start=\"1606\" data-end=\"1675\"><strong data-start=\"1606\" data-end=\"1626\">IVA acreditable:<\/strong> el que pagas a proveedores y puedes descontar.<\/p>\n<\/li>\n<li data-start=\"1676\" data-end=\"1742\">\n<p data-start=\"1679\" data-end=\"1742\"><strong data-start=\"1679\" data-end=\"1697\">IVA por pagar:<\/strong> diferencia entre trasladado y acreditable.<\/p>\n<\/li>\n<\/ol>\n<p data-start=\"1744\" data-end=\"1754\">Ejemplo:<\/p>\n<ul data-start=\"1755\" data-end=\"1918\">\n<li data-start=\"1755\" data-end=\"1791\">\n<p data-start=\"1757\" data-end=\"1791\">Vendiste $100,000 + IVA $16,000.<\/p>\n<\/li>\n<li data-start=\"1792\" data-end=\"1839\">\n<p data-start=\"1794\" data-end=\"1839\">Compraste insumos por $40,000 + IVA $6,400.<\/p>\n<\/li>\n<li data-start=\"1840\" data-end=\"1918\">\n<p data-start=\"1842\" data-end=\"1918\">IVA trasladado: $16,000 \u2013 IVA acreditable $6,400 = <strong data-start=\"1893\" data-end=\"1915\">IVA a pagar $9,600<\/strong>.<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1920\" data-end=\"2049\">\ud83d\udc49 Problema com\u00fan en PYMEs: <strong data-start=\"1948\" data-end=\"1984\">confundir IVA con ingreso propio<\/strong>, lo que genera crisis de liquidez cuando llega el pago al SAT.<\/p>\n<hr data-start=\"2051\" data-end=\"2054\" \/>\n<h2 data-start=\"2056\" data-end=\"2090\">\u00bfC\u00f3mo funciona el ISR en PYMEs?<\/h2>\n<p data-start=\"2092\" data-end=\"2140\">El ISR grava las <strong data-start=\"2109\" data-end=\"2123\">utilidades<\/strong> de la empresa.<\/p>\n<ol data-start=\"2142\" data-end=\"2303\">\n<li data-start=\"2142\" data-end=\"2187\">\n<p data-start=\"2145\" data-end=\"2187\">Se suman todos los ingresos acumulables.<\/p>\n<\/li>\n<li data-start=\"2188\" data-end=\"2227\">\n<p data-start=\"2191\" data-end=\"2227\">Se restan deducciones autorizadas.<\/p>\n<\/li>\n<li data-start=\"2228\" data-end=\"2268\">\n<p data-start=\"2231\" data-end=\"2268\">El resultado es la utilidad fiscal.<\/p>\n<\/li>\n<li data-start=\"2269\" data-end=\"2303\">\n<p data-start=\"2272\" data-end=\"2303\">Sobre ella se calcula el ISR.<\/p>\n<\/li>\n<\/ol>\n<p data-start=\"2305\" data-end=\"2315\">Ejemplo:<\/p>\n<ul data-start=\"2316\" data-end=\"2417\">\n<li data-start=\"2316\" data-end=\"2340\">\n<p data-start=\"2318\" data-end=\"2340\">Ingresos: $5,000,000<\/p>\n<\/li>\n<li data-start=\"2341\" data-end=\"2368\">\n<p data-start=\"2343\" data-end=\"2368\">Deducciones: $3,500,000<\/p>\n<\/li>\n<li data-start=\"2369\" data-end=\"2393\">\n<p data-start=\"2371\" data-end=\"2393\">Utilidad: $1,500,000<\/p>\n<\/li>\n<li data-start=\"2394\" data-end=\"2417\">\n<p data-start=\"2396\" data-end=\"2417\">ISR (30%): $450,000<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2419\" data-end=\"2514\">\ud83d\udc49 El <strong data-start=\"2425\" data-end=\"2441\">ISR en PYMEs<\/strong> depende directamente de qu\u00e9 tan bien manejes tus deducciones fiscales.<\/p>\n<hr data-start=\"2516\" data-end=\"2519\" \/>\n<h2 data-start=\"2521\" data-end=\"2560\">Errores m\u00e1s comunes con IVA en PYMEs<\/h2>\n<ol data-start=\"2562\" data-end=\"3147\">\n<li data-start=\"2562\" data-end=\"2694\">\n<p data-start=\"2565\" data-end=\"2694\"><strong data-start=\"2565\" data-end=\"2589\">Usar IVA como flujo.<\/strong> Muchos due\u00f1os gastan el IVA cobrado pensando que es ingreso, cuando en realidad debe enterarse al SAT.<\/p>\n<\/li>\n<li data-start=\"2695\" data-end=\"2817\">\n<p data-start=\"2698\" data-end=\"2817\"><strong data-start=\"2698\" data-end=\"2728\">No acreditar IVA a tiempo.<\/strong> CFDI vencidos, pagos en efectivo o facturas mal emitidas hacen perder acreditamientos.<\/p>\n<\/li>\n<li data-start=\"2818\" data-end=\"2940\">\n<p data-start=\"2821\" data-end=\"2940\"><strong data-start=\"2821\" data-end=\"2854\">Confundir tasa 0% con exento.<\/strong> Ventas con tasa 0% (ej. exportaciones) permiten acreditar IVA, pero las exentas no.<\/p>\n<\/li>\n<li data-start=\"2941\" data-end=\"3037\">\n<p data-start=\"2944\" data-end=\"3037\"><strong data-start=\"2944\" data-end=\"2976\">No conciliar IVA con bancos.<\/strong> SAT cruza CFDI con dep\u00f3sitos. Diferencias generan alertas.<\/p>\n<\/li>\n<li data-start=\"3038\" data-end=\"3147\">\n<p data-start=\"3041\" data-end=\"3147\"><strong data-start=\"3041\" data-end=\"3081\">No presentar declaraciones en ceros.<\/strong> Si no tuviste operaciones, igual debes presentar declaraciones.<\/p>\n<\/li>\n<\/ol>\n<hr data-start=\"3149\" data-end=\"3152\" \/>\n<h2 data-start=\"3154\" data-end=\"3193\">Errores m\u00e1s comunes con ISR en PYMEs<\/h2>\n<ol data-start=\"3195\" data-end=\"3712\">\n<li data-start=\"3195\" data-end=\"3274\">\n<p data-start=\"3198\" data-end=\"3274\"><strong data-start=\"3198\" data-end=\"3224\">Deducciones inv\u00e1lidas.<\/strong> Gastos personales o sin CFDI no son deducibles.<\/p>\n<\/li>\n<li data-start=\"3275\" data-end=\"3371\">\n<p data-start=\"3278\" data-end=\"3371\"><strong data-start=\"3278\" data-end=\"3307\">No provisionar impuestos.<\/strong> El ISR es trimestral, pero muchos lo enfrentan como sorpresa.<\/p>\n<\/li>\n<li data-start=\"3372\" data-end=\"3453\">\n<p data-start=\"3375\" data-end=\"3453\"><strong data-start=\"3375\" data-end=\"3408\">No calcular PTU (utilidades).<\/strong> Es 10% de la utilidad fiscal, no contable.<\/p>\n<\/li>\n<li data-start=\"3454\" data-end=\"3606\">\n<p data-start=\"3457\" data-end=\"3606\"><strong data-start=\"3457\" data-end=\"3489\">Olvidar pagos provisionales.<\/strong> El ISR no se paga solo al final del a\u00f1o, sino mes a mes (personas morales) o trimestral (personas f\u00edsicas RESICO).<\/p>\n<\/li>\n<li data-start=\"3607\" data-end=\"3712\">\n<p data-start=\"3610\" data-end=\"3712\"><strong data-start=\"3610\" data-end=\"3653\">Confundir utilidad contable con fiscal.<\/strong> Depreciaciones, deducciones y ajustes crean diferencias.<\/p>\n<\/li>\n<\/ol>\n<hr data-start=\"3714\" data-end=\"3717\" \/>\n<h2 data-start=\"3719\" data-end=\"3775\">Estrategias pr\u00e1cticas para manejar IVA e ISR en PYMEs<\/h2>\n<h3 data-start=\"3777\" data-end=\"3810\">1. Separa cuentas bancarias<\/h3>\n<p data-start=\"3811\" data-end=\"3901\">Nunca mezcles dinero personal con empresarial. Abre una cuenta exclusiva para impuestos.<\/p>\n<h3 data-start=\"3903\" data-end=\"3937\">2. Haz provisiones mensuales<\/h3>\n<p data-start=\"3938\" data-end=\"4028\">Aparta el IVA y el ISR en una cuenta especial desde el momento en que cobras la factura.<\/p>\n<h3 data-start=\"4030\" data-end=\"4060\">3. Usa software contable<\/h3>\n<p data-start=\"4061\" data-end=\"4159\">QuickBooks, Alegra o Contpaqi facilitan control de IVA acreditable y pagos provisionales de ISR.<\/p>\n<h3 data-start=\"4161\" data-end=\"4202\">4. Coordina con tu \u00e1rea de cobranza<\/h3>\n<p data-start=\"4203\" data-end=\"4331\">El IVA se paga aunque no te hayan pagado el CFDI, salvo que uses esquema PPD. Exige a tu contador revisar condiciones de pago.<\/p>\n<h3 data-start=\"4333\" data-end=\"4360\">5. Planea fiscalmente<\/h3>\n<p data-start=\"4361\" data-end=\"4439\">Eval\u00faa si te conviene RESICO o R\u00e9gimen General seg\u00fan ingresos y deducciones.<\/p>\n<hr data-start=\"4441\" data-end=\"4444\" \/>\n<h2 data-start=\"4446\" data-end=\"4497\">Caso pr\u00e1ctico: impacto del IVA e ISR en una PyME<\/h2>\n<p data-start=\"4499\" data-end=\"4573\">Una PyME factura $1,000,000 en el mes con gastos deducibles de $600,000.<\/p>\n<ul data-start=\"4575\" data-end=\"4657\">\n<li data-start=\"4575\" data-end=\"4603\">\n<p data-start=\"4577\" data-end=\"4603\">IVA trasladado: $160,000<\/p>\n<\/li>\n<li data-start=\"4604\" data-end=\"4632\">\n<p data-start=\"4606\" data-end=\"4632\">IVA acreditable: $96,000<\/p>\n<\/li>\n<li data-start=\"4633\" data-end=\"4657\">\n<p data-start=\"4635\" data-end=\"4657\">IVA a pagar: $64,000<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"4659\" data-end=\"4665\">ISR:<\/p>\n<ul data-start=\"4666\" data-end=\"4719\">\n<li data-start=\"4666\" data-end=\"4695\">\n<p data-start=\"4668\" data-end=\"4695\">Utilidad fiscal: $400,000<\/p>\n<\/li>\n<li data-start=\"4696\" data-end=\"4719\">\n<p data-start=\"4698\" data-end=\"4719\">ISR (30%): $120,000<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"4721\" data-end=\"4838\">\ud83d\udc49 En ese mes, la empresa debe disponer de <strong data-start=\"4764\" data-end=\"4796\">$184,000 solo para impuestos<\/strong>. Si no se prev\u00e9, se afecta la liquidez.<\/p>\n<hr data-start=\"4840\" data-end=\"4843\" \/>\n<h2 data-start=\"4845\" data-end=\"4876\">Futuro de IVA e ISR en PYMEs<\/h2>\n<ul data-start=\"4878\" data-end=\"5246\">\n<li data-start=\"4878\" data-end=\"4967\">\n<p data-start=\"4880\" data-end=\"4967\"><strong data-start=\"4880\" data-end=\"4906\">Fiscalizaci\u00f3n digital.<\/strong> SAT cruza CFDI, bancos y contabilidad casi en tiempo real.<\/p>\n<\/li>\n<li data-start=\"4968\" data-end=\"5052\">\n<p data-start=\"4970\" data-end=\"5052\"><strong data-start=\"4970\" data-end=\"4989\">Automatizaci\u00f3n.<\/strong> Cada vez m\u00e1s, los c\u00e1lculos de impuestos estar\u00e1n prellenados.<\/p>\n<\/li>\n<li data-start=\"5053\" data-end=\"5152\">\n<p data-start=\"5055\" data-end=\"5152\"><strong data-start=\"5055\" data-end=\"5099\">Mayor control en acreditamientos de IVA.<\/strong> CFDI con errores ser\u00e1n rechazados autom\u00e1ticamente.<\/p>\n<\/li>\n<li data-start=\"5153\" data-end=\"5246\">\n<p data-start=\"5155\" data-end=\"5246\"><strong data-start=\"5155\" data-end=\"5177\">Reformas fiscales.<\/strong> Se esperan ajustes para PYMEs en RESICO y reglas de deducibilidad.<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"5248\" data-end=\"5357\">\ud83d\udc49 La clave no est\u00e1 en temerle al SAT, sino en <strong data-start=\"5295\" data-end=\"5354\">anticiparse con informaci\u00f3n clara y registros correctos<\/strong>.<\/p>\n<h2 data-start=\"5364\" data-end=\"5377\">Conclusi\u00f3n<\/h2>\n<p data-start=\"5379\" data-end=\"5518\">El <strong data-start=\"5382\" data-end=\"5404\">IVA e ISR en PYMEs<\/strong> son los dos impuestos m\u00e1s relevantes en M\u00e9xico, pero tambi\u00e9n los que m\u00e1s problemas generan por desconocimiento.<\/p>\n<p data-start=\"5520\" data-end=\"5702\">Como due\u00f1o o gerente de PyME, tu responsabilidad no es calcularlos, sino <strong data-start=\"5593\" data-end=\"5699\">entender c\u00f3mo funcionan, vigilar su provisi\u00f3n y asegurarte de que tu contador los maneje correctamente<\/strong>.<\/p>\n<p data-start=\"5704\" data-end=\"5824\">\ud83d\udc49 Una PyME que domina IVA e ISR no solo evita multas, tambi\u00e9n mejora su liquidez, planea mejor y crece con seguridad.<\/p>\n<hr data-start=\"5826\" data-end=\"5829\" \/>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_2821\" class=\"pvc_stats all  \" data-element-id=\"2821\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 12.8-12.8V204.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v134.4c0 6.4 6.4 12.8 12.8 12.8zM496 400H48V80c0-8.84-7.16-16-16-16H16C7.16 64 0 71.16 0 80v336c0 17.67 14.33 32 32 32h464c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16zm-387.2-48h22.4c6.4 0 12.8-6.4 12.8-12.8v-70.4c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v70.4c0 6.4 6.4 12.8 12.8 12.8z\" class=\"\"><\/path><\/svg><\/i> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"16\" alt=\"Loading\" src=\"https:\/\/www.cubodeideas.com\/blog\/wp-content\/plugins\/page-views-count\/ajax-loader-2x.gif\" border=0 \/><\/p>\n<div class=\"pvc_clear\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>El IVA e ISR en PYMEs son los dos impuestos que m\u00e1s impacto tienen en la operaci\u00f3n diaria de cualquier empresa en M\u00e9xico. Aunque su manejo parece tarea exclusiva de contadores, la verdad es que los errores m\u00e1s graves ocurren cuando los due\u00f1os no entienden c\u00f3mo funcionan, lo que genera multas, recargos o p\u00e9rdidas de [&hellip;]<\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_2821\" class=\"pvc_stats all  \" data-element-id=\"2821\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 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