The tax year for individuals runs from 1 January to 31 December.
Taxes on income are governed by the income tax law (Ley del Impuesto sobre la Renta) and its related regulations. Administration of the law is vested with the Tax Office of Guatemala (Superintendencia de Administración Tributaria).
Husbands and wives cannot file joint returns.
Payment of tax
Income tax must be withheld from salaries; rentals; royalties; fees for technical, professional, or scientific activities; or any kind of individual services.