The aguinaldo, Argentina's 13th-month pay, is half of the highest gross monthly salary in each semester (Law 23,041). If you worked the whole semester, it's your best salary divided by 2. If you started during the semester, it's pro rata to the days worked. It's due on 30 June and 18 December, and it's gross: salary deductions apply.
The aguinaldo, or sueldo anual complementario (annual supplementary salary), is paid twice a year to employees in Argentina. If you've just moved there or work for an Argentine employer, this calculator applies the legal formula to your best salary in the semester and, if you started during the semester, works out the pro-rata share from your start date.
The calculator
Enter your highest gross monthly salary in the semester to see the aguinaldo.
Educational tool. The result is an estimate and doesn't replace your payroll calculation: the exact amount is what your payslip says.
How it's calculated
Law 23,041 sets the aguinaldo at 50% of the highest monthly pay earned, counting every component of pay, within each semester: January to June and July to December. If you worked the whole semester, it's your best gross salary in the semester divided by 2.
If you started during the semester, it's paid pro rata to the time worked: half the best salary, multiplied by the days worked and divided by the days in the semester. The first semester has 181 days (182 in leap years) and the second, 184. The calculator counts them from your start date.
Worked example. Suppose your best gross salary in the first semester was $1,200,000. For the full semester, the aguinaldo is $600,000. If you started on 15 March 2026, you worked 108 of the semester's 181 days: $600,000 × 108 ÷ 181 = $358,011.
The calculator gives the gross aguinaldo. When it's paid, the same deductions as your salary apply (social security contributions and, depending on your salary, income tax), so your payslip will show a lower amount. The exact figure is what your payroll says.
When it's paid
Argentina's Employment Contract Law (art. 122) says the aguinaldo is paid in two instalments: the first due on 30 June and the second due on 18 December each year.
- If you leave a job before the semester ends, you're owed the share proportional to the time worked (Employment Contract Law, art. 123), paid with your final settlement.
- The best salary includes everything that counts as pay that month: base, overtime, commissions, allowances.
- If your salary changed during the semester, take the highest month, not the average.
Before it arrives, it's worth deciding what it's for: paying off a debt, topping up the emergency fund, getting ahead on a goal. An aguinaldo without a plan tends to get absorbed into the month without anyone noticing.
Frequently asked questions
How is the aguinaldo calculated?
It's 50% of the highest gross monthly salary in the semester (Law 23,041). For a full semester worked, it's the best salary divided by 2; if you started during the semester, it's pro rata to the days worked.
How is a pro-rata aguinaldo calculated?
Half the best salary in the semester, times the days worked, divided by the days in the semester: 181 for the first (182 in leap years) and 184 for the second. The calculator counts the days from your start date.
When is the aguinaldo paid?
In two instalments: the first is due on 30 June and the second on 18 December, under article 122 of Argentina's Employment Contract Law.
Is the aguinaldo subject to deductions?
Yes, the same as your salary. That's why the calculator shows the gross amount: the net depends on your contributions, caps and, depending on your salary, income tax, and the exact figure is the one on your payslip.
Does it apply to freelancers or the self-employed?
No. The aguinaldo is for employees. If you work for yourself, there's no annual supplementary salary.
Sources and review date
Checked on October 14, 2026. External figures change: if you're deciding based on this, it's worth confirming the number at the source.