Individuals:
If you are a salaried employee, but you worked for more than one employer at the same time, or if you had income from other sources than your job with a salary.
If you were a lessor of real estate, regardless of the amount of rent paid to you.
If you worked as a self-employed professional and received fees. Remember that if you are a freelancer you must issue receipts for the work you performed in order to file your tax return.
If you bought or sold real estate during the year, you must calculate the amount of income tax and declare it.
If you received income from financial investments, you must also file your 2021 annual tax return.
If your income was higher than 400 thousand pesos, even if you are a salaried employee, and you only have one source of income.
If you are engaged in commercial activities, such as owning restaurants, hairdressing salons, mechanical workshops, clothing stores and a long etcetera. If you are the owner of this type of establishment, you must file your tax declaration with the SAT.
Remember that the deadline for filing tax declarations is April 30 for individuals and March 31 for corporations.