Your first hire in the Philippines has been working for eleven months when December arrives — and your payroll total comes back a full month's salary higher than you budgeted. Nobody gave anyone a raise. You just met 13th-month pay: a statutory wage, not a bonus, owed by law in dozens of countries across Latin America, Europe, and Asia. Miss it and you are not merely ungrateful; in Mexico you face labor fines, in the Philippines a money claim any employee can file with the labor department, and in Brazil interest and penalties on every day you are late.
If you employ people — or contractors your local rules treat as employees — outside your home country, this guide explains where 13th-month pay is mandatory, how to compute the prorated amount for partial-year workers, how it is taxed, and the one bookkeeping habit that keeps December from wrecking your cash flow.
What 13th-Month Pay Actually Is
Despite the name, 13th-month pay is not a Christmas bonus and not discretionary. In countries where it is mandatory, it is a legal entitlement: extra compensation, usually equal to one month's wages, that accrues as the employee works and falls due on a fixed statutory deadline. Think of it as deferred salary rather than a gift — the employee earns a slice of it with every pay period, and the employer holds an ever-growing obligation until payout day.
The United States has no equivalent at the federal level, which is exactly why American founders get surprised. A US offer letter that says "₱50,000 per month" to a Manila hire quietly means thirteen months of pay, not twelve. The true annual cost of that hire is 8.33% higher than the monthly figure suggests — before social charges, which in some countries apply to the 13th month too.
Some countries go further and effectively mandate fourteen payments a year: Austria, Spain, Portugal, Italy (in many sectors), and Greece split extra salary across summer and winter payouts. When scoping the cost of a hire abroad, always ask how many pays the year holds, not what the monthly salary is.
Where It Is Mandatory
Rules vary by country, but these are the major jurisdictions small employers encounter most often:
Philippines. Presidential Decree 851 requires 13th-month pay for all rank-and-file employees who worked at least one month during the calendar year. The amount is the employee's total basic salary earned from January 1 to December 31, divided by 12. Payment is due on or before December 24. Basic salary excludes overtime, holiday pay, night-shift differentials, allowances, and commissions. Employers must also file a compliance report with the nearest labor department regional office by mid-January.
Mexico. The aguinaldo, under Article 87 of the Federal Labor Law, guarantees every employee at least 15 days of salary, payable before December 20. Workers with less than a full year of service receive a proportional amount. Note that 15 days is only the floor: many employers pay 20 or 30 days by contract or collective agreement, and a 2026 congressional proposal to raise the statutory minimum to 30 days is still pending — it has not become law.
Brazil. The 13º salário, established by Law 4,090/1962, is paid in two installments: the first, equal to half the employee's monthly salary with no deductions, by November 30; the second, settling the balance with income tax and social security withheld, by December 20. Each month in which the employee worked at least 15 days counts as a full one-twelfth. Watch the calendar: when December 20 falls on a Sunday, as it does in 2026, the second installment must be advanced to the preceding Friday, December 18.
Argentina. The sueldo anual complementario (SAC, also called the aguinaldo) is paid in two halves: one by June 30 and one by December 18, each equal to 50% of the highest monthly salary earned in that semester. Argentina splits the burden across the year instead of concentrating it in December.
Indonesia. The Tunjangan Hari Raya (THR) is a religious-holiday allowance equal to one month's wages for employees with 12 months of continuous service, prorated for service between one and twelve months. Unusually, the deadline floats: THR must be paid no later than seven days before the employee's religious holiday — most commonly Eid al-Fitr — so the payout month moves with the lunar calendar rather than landing in December.
Spain, Portugal, Italy, Greece, and Austria. Southern Europe mandates extra payments on its own rhythm. Spain requires two extra salary payments (typically summer and Christmas), often prorated into twelve monthly installments by agreement. Portugal mandates Christmas and vacation subsidies. Italy requires the tredicesima in December, with a quattordicesima in July in several sectors. Greece requires Christmas, Easter, and vacation bonuses. Austria mandates 13th and 14th salaries, taxed at a preferential rate within statutory limits.
Customary-but-not-mandatory bonuses exist in many more countries — China, Singapore, Hong Kong, and France among them — where skipping the year-end payment is legal but will cost you retention. Mandatory means the labor authority can come after you; customary means your employees will simply leave.
How to Prorate It for Partial-Year Workers
New hires, mid-year joiners, and departing employees almost never receive the full amount. Each country's formula differs, so run the local math rather than guessing:
Philippines: total basic salary divided by 12. Add up everything the employee earned as basic salary during the calendar year and divide by twelve. A hire who joined July 1 at ₱40,000 per month earned ₱240,000 of basic salary, so the 13th-month pay is ₱20,000. If the employee resigns, the prorated amount is included in final pay. Remember that allowances and overtime never enter the base — a common overpayment error.
Mexico: daily salary times 15, times days worked over 365. Divide the monthly salary by 30 to get the daily rate, multiply by 15 days, then multiply by the fraction of the year worked. An employee earning 30,000 pesos per month who worked 200 days is owed 1,000 pesos daily × 15 days × (200 ÷ 365), or 8,219 pesos. Employees who already left during the year are still owed their proportional share.
Brazil: one-twelfth per qualifying month. Divide the December monthly salary by 12 and multiply by the number of months in which the employee worked 15 days or more. Nine qualifying months means nine-twelfths of a month's pay. Overtime, night-shift premiums, and commissions feed into the December calculation base, which surprises employers who assumed only base salary counts.
Indonesia: months of service over 12, times one month's wage. Five months of service yields five-twelfths of the latest monthly wage. Service under one month earns nothing; twelve continuous months earns the full month.
The pattern that matters for your books: every formula is linear in time worked. That linearity is what makes the monthly accrual in the next section exact rather than approximate.
How It Is Taxed and What Gets Withheld
Tax treatment is local and inconsistent — never assume the 13th month is taxed like ordinary salary:
- Philippines: 13th-month pay and other bonuses are exempt from income tax up to ₱90,000 combined per year; only the excess is taxed as regular income.
- Mexico: the aguinaldo is exempt from income tax up to 30 days of the general minimum wage (about 8,364 pesos in 2026 at the general zone daily rate); the excess is taxable, and withholding applies on the taxable portion.
- Brazil: the November installment is paid gross with no deductions; income tax and social security are withheld from the December installment on the full 13th-salary amount. Employer social charges apply too, so budget roughly 20% on top of the gross payment for payroll taxes, depending on the company's regime.
- Austria: 13th and 14th salaries enjoy a preferential flat tax rate starting around 6% within annual limits, well below marginal income tax rates.
The practical point: your December payroll run needs country-specific withholding logic, not a copy of November's. If you run payroll through an employer of record, confirm in writing that their quote includes the 13th month, its employer charges, and the correct withholding — some quotes show the monthly cost and footnote the rest.
The Bookkeeping Habit That Saves December: Accrue One-Twelfth Every Month
Here is the mistake that sinks cash plans: booking the 13th month as a December surprise. By the time December arrives, the liability has been building for eleven months. The correct treatment — required in substance by IAS 19's short-term employee benefits rules and the matching principle under US GAAP — is to recognize a slice of the cost in every month the employee works.
Each month, record two legs:
- Debit compensation expense for one-twelfth of the expected annual 13th-month amount (plus the related employer payroll taxes where they apply).
- Credit an accrued 13th-month liability account for the same amount.
When December's payout (or November's first installment, or June's SAC half) arrives, debit the accrued liability and credit cash, with withholding legs for tax and social charges as usual. The December income statement then shows only any true-up between your estimate and the final computed amount — a small variance, not a month's extra payroll appearing from nowhere.
This habit does three things at once. First, monthly profit figures stay honest: every month bears its real labor cost instead of eleven months looking lean and December looking catastrophic. Second, the liability balance on your balance sheet tells you at any moment exactly what you owe if everyone walked out tomorrow — leavers are owed their prorated share, so this is a real obligation, not a forecast. Third, cash planning becomes mechanical: the accrued balance is the December check you are already writing, so fund it monthly into a separate reserve instead of scrambling in the holidays.
For multi-country teams, keep one accrued-liability subaccount per country. Deadlines differ — June and December in Argentina, a floating holiday in Indonesia, November and December in Brazil — and a single blended account hides which payout is coming next. If you keep your books in plain text, a monthly recurring transaction with one posting per country makes the whole system auditable in a few lines; the Beancount documentation shows how recurring postings and balance assertions work for exactly this kind of accumulating obligation.
Common Mistakes Small Employers Make
Treating it as a discretionary bonus. Calling the payment a "Christmas bonus" in offer letters and then skipping it in a bad year invites a labor claim. In mandatory countries, the only discretionary part is anything you pay above the statutory floor — label that portion as the bonus, in writing.
Forgetting employees who left. Resigned and terminated workers keep their prorated entitlement in the Philippines, Mexico, and Brazil. Run the proration as part of every final-pay checklist, not as a December afterthought.
Budgeting twelve months of salary for a thirteen-month hire. When comparing candidates across countries, convert every offer to fully loaded annual cost: monthly salary times the number of statutory pays, plus employer charges on all of them. A "cheaper" monthly salary in Manila can exceed a higher one in a twelve-pay country once the 13th month lands.
Assuming contractors dodge the obligation. If local law reclassifies your long-term contractor as an employee — common in Brazil, Spain, and the Philippines — the 13th-month liability (plus penalties and back charges) attaches retroactively. The accrual habit above doubles as a misclassification reserve while the relationship is genuinely contract work.
Ignoring the compliance paperwork. The Philippines requires an annual compliance report to the labor department; Brazil's installments flow through the standard social-security filings; Mexico's aguinaldo appears in annual labor disclosures. The payment without the paperwork still draws findings in an inspection.
A Practical Checklist Before Year-End
- List every country where you have employees or employee-like contractors, and confirm whether a 13th or 14th payment is mandatory, customary, or neither.
- For each mandatory country, note the exact deadline: December 24 (Philippines), December 20 (Mexico; December 18 for Brazil's second installment in 2026), November 30 (Brazil's first installment), June 30 and December 18 (Argentina), seven days before the holiday (Indonesia).
- Compute prorated amounts for joiners and leavers with the local formula — total basic over 12, daily-rate proportional, or qualifying-months — and include leavers' shares in final pay.
- Apply country-specific withholding: the ₱90,000 Philippine exemption, Mexico's 30-day minimum-wage exemption, Brazil's gross-first-installment rule.
- Reconcile the accrued-liability balance per country to the computed payout, book the true-up, and fund the cash two weeks before the earliest deadline your team faces.
Keep Your Global Payroll Organized From Day One
As you hire across borders, every country's payroll quirks — 13th-month accruals, staggered deadlines, local withholding rules — become one more ledger to keep straight. Beancount.io provides plain-text accounting that gives you complete transparency and control over your financial data: monthly accruals you can read, version-controlled books your accountant can audit, and no black boxes. Get started for free and see why developers and finance professionals are switching to plain-text accounting.
