Running payroll in Panama is not just splitting salary between two pay periods. Every payroll cycle involves five parallel calculations governed by separate laws: the contribution to Social Security (CSS), the income tax withholding (ISR), the accrual of the 13th-month bonus, the seniority premium fund, and the solidarity contributions. On top of that, monthly reporting to MITRADEL and CSS is mandatory, and every termination must comply with the Labor Code.
This guide pulls together our practical resources on each component of Panamanian payroll, with current 2026 rates, worked numerical examples and the exact file formats each authority expects.
In this guide
Mandatory contributions and withholdings
Every Panama payroll deducts two main charges from the employee salary and adds three employer contributions on the same base. The rates change periodically and must be applied with precision: a single rounding error compounds across the year and shows up in any labor or tax audit.
The resources in this section detail current rates, calculation bases and the pre-filled planilla formats that CSS and DGI expect.
Annual bonuses and accrued benefits
The 13th-month bonus and the seniority premium are the two most misunderstood labor benefits in Panama. The 13th-month is paid in three installments on strict dates (April 15, August 15, December 15) and is subject to CSS contributions. The seniority premium is a separate fund that accrues 1.92% on everything earned and must be set up from the first day of employment.
Termination and final settlements
Every termination of an employment relationship, whether voluntary resignation, justified or unjustified dismissal, requires a settlement that combines pro-rated vacations, pro-rated 13th-month bonus, accrued seniority premium and, where applicable, severance. Getting the calculation right prevents claims at MITRADEL and labor lawsuits.
Automating payroll with an ERP
Spreadsheets work for the first 10 to 15 employees. Beyond that, errors in employer contributions, inconsistencies between the CSS planilla and the MITRADEL planilla, and the difficulty of generating SIPE files in the right format become a real operational burden. An ERP built natively for Panama centralizes the calculation, generates the files in the format each entity expects and keeps the audit trail intact.