Payroll Calculations
How pay, taxes, contributions, and statutory figures are calculated across different markets.
Mexico's minimum wage rises every January: what that does to payroll
On 1 January 2026 Mexico's statutory minimum wage rose. The first pay run of the year is the most common place for the mistake that follows: if the payroll configuration still holds December's figure, a worker who…
Niko Nurmentaus
Product Lead
The aguinaldo: how Mexico's mandatory Christmas bonus works in payroll
Every employer in Mexico owes each worker an aguinaldo of at least 15 days of salary, and it has to be paid before 20 December each year (LFT Art. 87). This is not a discretionary bonus or a performance reward. It is a…
Mehmood Deshmukh
CTO & Co-Founder
IMSS Contributions in Mexico: What the Worker Pays and What the Employer Pays
A Mexican payslip shows a single line for the worker's IMSS deduction, and that single line hides how the social-security bill is actually built. Every contribution to the Instituto Mexicano del Seguro Social (IMSS, the…
Mehmood Deshmukh
CTO & Co-Founder
How Portuguese Income Tax Is Calculated on a Payslip: IRS From Gross to Withholding
Portuguese income tax, the IRS (Imposto sobre o Rendimento das Pessoas Singulares), is progressive, but the amount an employer withholds each month does not come from applying the progressive brackets directly. The…
Mehmood Deshmukh
CTO & Co-Founder
How Mexican Income Tax Is Calculated on a Payslip: ISR From Gross to Withholding
Mexican income tax, the ISR (Impuesto Sobre la Renta), is a progressive tax that the employer withholds from each payment and pays to the tax authority (SAT) by the 17th of the following month. On paper the calculation…
Mehmood Deshmukh
CTO & Co-Founder
