Retentions taxes are monetary amounts that the payer must deduct from the total amount of an invoice for the purchase of certain professional services, payroll and other specific operations required by tax regulations.
The payer is obliged to apply the retention tax by paying the service provider a percentage of the total amount of the services rendered on the invoice. This amount is paid by the payer to the tax office at the end of each quarter on behalf of the professional from whom it was deducted.