Video summary

✅ Cómo CALCULAR el ISR de personas físicas 2021

Main summary

Key takeaways

Finance

Finance / Tax topic

  • How to calculate Mexico’s “ISR” (Impuesto Sobre la Renta) for individuals with salary/wage income (referred to as “ISR de personas físicas” / Income Tax for employees).

Instruments / tickers

  • None mentioned (no stocks, ETFs, bonds, commodities, or crypto).

Key macro / tax context

  • The ISR computation framework is generally similar year to year, but ISR table amounts and brackets can change due to reforms.
  • The video notes that sometimes the table in the law differs from what must be applied for the year, because SAT publishes/organizes updates in a particular way.

Explicit timeline / legal references

  • Example uses 2018 ISR framework:
    • Income Tax Law: individuals section (Individuals / “Capítulo Four”).
    • ISR table reference: Article 96
      • Also mentions Article 9 and annexes.
    • The 2018 table was published in December 2017.
    • An alternative source for the correct 2018 table: “Annex 8 of the 2018 Tax Resolution.”
  • 2019 proposals to reduce tax rates are mentioned, but cannot be applied until they become law.

Methodology / step-by-step framework (as taught)

  1. Get the correct ISR table for the year from official sources (SAT / annexes).
    • Example given: Annex 8 for 2018.
  2. Use the monthly ISR table (the video emphasizes there can also be an annual table depending on context).
  3. For a given gross monthly salary, find the bracket in the table:
    • Identify the lower limit and upper limit that contain the salary.
    • Use these table columns:
      • Fixed fee (“cuota fija”)
      • Lower limit
      • Rate applied to the amount exceeding the lower limit
      • Percentage/rate column (often “porcentaje” / rate “a aplicar” for the excess)
  4. Compute the tax:
    • Excess over lower limit = (salary − lower limit)
    • Marginal tax = (excess over lower limit) × (row rate)
    • Total ISR = Marginal tax + fixed fee
  5. Payroll impact / withholding
    • The employer withholds and pays ISR, typically shown on payslips as “ISR.”

Worked example (key numbers)

  • Base gross monthly salary used: $15,000 pesos

Bracket identification

  • Salary $15,000 falls within the range $12,000 to $24,000.

Table values used (as stated by the presenter)

  • Lower-limit adjustment: use the lower limit $12,000

  • Lower-limit-derived value used in the example: 129.95 (referenced as the amount at the lower limit in the selected row)

  • Rate used for the bracket: 21.36

  • Fixed fee used: 171.887

Computations described

  • Excess over lower limit: $15,000 − 129.95 = 2,990 (as presented)

  • Marginal tax: 2,990 × 21.36% = 638.67

  • Total ISR: 638.67 + 171.887 = 1,910.57 pesos

    • The video later references $19,910 as a likely typo.
    • Later text aligns with ~190.57 cents, and the net-pay discussion suggests the intended ISR is about $1,910.57.

Net take-home result shown (as described)

  • The video says: “Subtract 190.57 cents from $15,000” → net shown as $13,089 pesos.
  • The presenter’s stated net figure appears inconsistent with the ISR values discussed, but the takeaway remains:
    • net = gross − ISR

Recommendations / cautions

  • Don’t apply outdated table values: the “law’s table” may not match what’s effectively applied for the year—use the correct annex/resolution.
  • Verify monthly vs. annual table correctness depending on the calculation basis.
  • If the methodology changes (not just rates/amounts), a new approach would be needed (the channel indicates it would publish another video).

Disclaimers

  • No explicit “not financial advice” (or investment-specific disclaimer) is included in the provided subtitles.
  • The video frames the content as tax calculation guidance using official tables.

Presenters / sources mentioned

  • Presenter / channel: “friends of Contador Contado” (host name not provided in subtitles)
  • Official sources referenced:
    • SAT (Servicio de Administración Tributaria)
    • Mexican Income Tax Law
      • ISR table references: Article 96, Article 9
      • Example table source: “Annex 8 of the 2018 Tax Resolution.”

Original video