Cómo calculamos y verificamos nuestras cifras

Las cifras de taxes afectan decisiones reales, así que queremos que puedas comprobar las nuestras. Aquí explicamos de dónde sale cada número, qué suponen nuestras calculadoras y cómo detectamos errores.

1. Solo fuentes oficiales

Cada tasa, límite y fecha sale de una fuente primaria: procedimientos, avisos, formularios e instrucciones del IRS, y la Administración del Seguro Social (SSA). Cada calculadora enumera sus fuentes al final de la página. No copiamos cifras de otras calculadoras ni de blogs.

2. Un solo lugar para las cifras de cada año

Todas las cifras de un año fiscal viven en un único archivo de datos, cada una junto al enlace de su fuente. Cuando el IRS publica cifras nuevas, actualizamos ese archivo y todas las calculadoras y guías cambian a la vez. Año fiscal actual: 2026, revisado por última vez el 2026-09-22.

3. Comprobado contra el IRS

Las cuentas de nuestras calculadoras tienen pruebas automáticas. Por ejemplo, nuestra función del impuesto federal sobre la renta debe reproducir, al centavo, todos los importes de las tablas de tasas del IRS para los cuatro estados civiles, y nuestra función de self-employment tax debe seguir los pasos del Schedule SE. Si una prueba falla, el sitio no se actualiza.

4. Qué suponen nuestras calculadoras

Nuestros resultados son estimaciones. Salvo que una calculadora diga otra cosa, supone:

  • Solo taxes federales. No incluye impuestos estatales ni locales.
  • La deducción estándar, no deducciones detalladas (itemized).
  • Sin créditos fiscales (como el Child Tax Credit o el EITC), que pueden bajar lo que pagas.
  • Para la deducción por ingresos de negocio calificados (QBI): un solo negocio en el que participas activamente, sin empleados en nómina y sin bienes importantes del negocio. Es lo típico en freelancers y choferes de apps.
  • Sin ganancias de capital ni ingresos de otros negocios o sociedades.

Hacemos las cuentas con centavos y solo redondeamos lo que te mostramos. El IRS permite redondear a dólares enteros en la declaración, así que tus formularios pueden variar unos pocos dólares.

5. Tu privacidad

Las calculadoras funcionan completamente en tu navegador. Los números que escribes no se nos envían ni se guardan en ningún sitio. Si usas el botón "copiar enlace", tus números quedan guardados solo en ese enlace: compártelo solo con personas de confianza.

6. Correcciones

Si crees que una cifra está mal, avísanos en hola@netacalc.com. Revisamos cada aviso, corregimos rápido los errores confirmados y actualizamos la fecha de revisión de la página.

7. Lo que NetaCalc no es

NetaCalc es un recurso educativo, no un preparador de taxes ni un asesor. Explicamos las reglas y hacemos las cuentas; no te decimos qué hacer en tu caso concreto. Para decisiones importantes, habla con un profesional de taxes, como un CPA o un Enrolled Agent.

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