Brazil’s December Sales Commissions Can Create a January 13th-Salary Payroll Adjustment
A Brazilian employer can finish paying the annual 13th salary in December and still owe additional 13th-salary compensation in January.
Samarthya Pandey
The reason is variable remuneration.
For employees earning sales commissions, the 13th salary calculated in December may use commission earnings through November. Once December’s commissions become known, the employer must revisit the annual calculation.
Under Article 77 of Brazil’s Decree 10,854/2021, the adjustment must be completed by January 10 of the following year, with payment or compensation of the resulting difference.
That creates three separate financial questions:
- How much additional 13th salary is actually owed?
- How much do the adjustments change FGTS and other employer liabilities?
- How should December’s approved payroll, January payments and the employer’s accounting records reconcile?
Consider a company with ten salespeople. Its initial December 13th-salary calculation totals R$132,200. Once December commissions are incorporated, the recalculated entitlement reaches R$134,700.
The difference is R$2,500.
But that does not mean the company necessarily needs only R$2,500 of additional gross payment capacity.
Six employees are owed another R$5,000 collectively. Three have negative adjustments totaling R$2,500, and one has no adjustment.
Depending on whether and how negative differences can be lawfully compensated, the company’s immediate cash requirement can be larger than its net accounting adjustment.
This is where a seemingly straightforward 13th-salary recalculation becomes a payroll reconciliation problem.
Why December Commissions Can Change an Already-Calculated 13th Salary
Brazil’s 13th salary, known as décimo terceiro salário, is generally paid in two installments.
The first installment is due by November 30 and the second by December 20. Employees receiving variable remuneration require an additional calculation when their December earnings become known.
Article 77 of Decree 10,854/2021 establishes the general calculation for employees receiving variable wages.
For a full-year employee with a fixed salary and eligible commissions, the variable component initially calculated through November is:
November variable average = Total eligible variable remuneration from January through November ÷ 11
The initial annual 13th-salary calculation combines that average with the eligible fixed salary.
After December’s variable remuneration is known, the calculation becomes:
Final variable average = Total eligible variable remuneration from January through December ÷ 12
The January adjustment is the difference between the final 13th-salary entitlement and the amount already calculated.
For employees whose fixed salary has not changed:
January gross adjustment = (December eligible commissions − January-to-November monthly commission average) ÷ 12
This formula is particularly useful for finance teams because it identifies the sensitivity of the annual benefit to the final month’s commission performance.
Example: One salesperson
Suppose an employee earns:
| Component | Amount |
|---|---|
| Fixed monthly salary | R$5,000 |
| Average eligible commissions, January–November | R$8,000 |
| Actual eligible December commissions | R$20,000 |
| Initial 13th-salary entitlement | R$13,000 |
| Revised annual 13th-salary entitlement | R$14,000 |
| Additional gross entitlement | R$1,000 |
The calculation is:
(R$20,000 − R$8,000) ÷ 12 = R$1,000
The employee did not earn another R$12,000 of 13th salary because December commissions increased by that amount.
Instead, the higher December earnings increased the annual average by R$1,000.
This distinction matters when forecasting the year-end liability of a commission-heavy workforce.
The model assumes twelve months of qualifying service, unchanged fixed salaries, and the general statutory averaging method. Actual payroll must also consider applicable collective bargaining agreements, eligible paid-weekly-rest components, other variable remuneration, and any rules specific to the employee’s contract or sector.
A Ten-Salesperson Model: November Estimates vs December Actuals
Consider a hypothetical Brazilian sales company preparing its 2026 year-end payroll.
All ten employees have worked for the entire year. Each receives a fixed salary plus eligible sales commissions.
For this example, commission earnings from January through November are constant at each employee’s stated average. December introduces a different amount because of year-end sales performance.
The company’s November planning calculation uses the eleven-month average. Its January reconciliation incorporates actual December earnings.
All amounts are in Brazilian reais.
| Salesperson | Fixed salary | Jan–Nov monthly commission average | Actual December commissions |
|---|---|---|---|
| S01 | R$4,000 | R$2,000 | R$8,000 |
| S02 | R$4,200 | R$3,000 | R$9,000 |
| S03 | R$4,400 | R$4,000 | R$10,000 |
| S04 | R$4,600 | R$5,000 | R$17,000 |
| S05 | R$4,800 | R$6,000 | R$30,000 |
| S06 | R$5,000 | R$8,000 | R$8,000 |
| S07 | R$5,200 | R$10,000 | R$4,000 |
| S08 | R$5,400 | R$12,000 | R$0 |
| S09 | R$5,600 | R$15,000 | R$21,000 |
| S10 | R$6,000 | R$18,000 | R$6,000 |
| Total | R$49,200 | R$83,000 | R$113,000 |
The company has R$83,000 in combined average monthly commissions across its ten employees.
December commissions total R$113,000, or R$30,000 above that combined monthly average.
The final year’s eligible variable remuneration is:
(11 × R$83,000) + R$113,000 = R$1,026,000
The revised annual commission average across the ten employees is:
R$1,026,000 ÷ 12 = R$85,500
Adding the fixed-salary component produces the recalculated 13th-salary entitlement:
R$49,200 + R$85,500 = R$134,700
The company’s original calculation was:
R$49,200 + R$83,000 = R$132,200
Its net gross adjustment is therefore:
R$134,700 − R$132,200 = R$2,500
Employee-level reconciliation
The following table reveals something that the company-level total conceals.
| Employee | Initial 13th salary | Revised 13th salary | Gross adjustment |
|---|---|---|---|
| S01 | R$6,000 | R$6,500 | +R$500 |
| S02 | R$7,200 | R$7,700 | +R$500 |
| S03 | R$8,400 | R$8,900 | +R$500 |
| S04 | R$9,600 | R$10,600 | +R$1,000 |
| S05 | R$10,800 | R$12,800 | +R$2,000 |
| S06 | R$13,000 | R$13,000 | R$0 |
| S07 | R$15,200 | R$14,700 | −R$500 |
| S08 | R$17,400 | R$16,400 | −R$1,000 |
| S09 | R$20,600 | R$21,100 | +R$500 |
| S10 | R$24,000 | R$23,000 | −R$1,000 |
| Total | R$132,200 | R$134,700 | +R$2,500 |
Six employees have positive adjustments totaling R$5,000.
Three have negative adjustments totaling R$2,500.
One employee has no adjustment.
The arithmetic reconciles perfectly, but the payment consequences require separate treatment.
Brazil’s statutory rule contemplates payment or compensation of differences. However, an employer should not assume that every negative adjustment can automatically be deducted from an employee’s next ordinary salary payment.
Article 462 of the Consolidation of Labor Laws (CLT) restricts salary deductions. The treatment of an overpaid 13th-salary amount must be assessed against the applicable advance, compensation, payroll and collective-agreement rules.
This creates an important distinction:
The net change in entitlement is not necessarily the same as the amount of additional cash the employer must transfer in January.
For this company, R$5,000 represents positive gross employee adjustments that must be addressed. The R$2,500 of negative adjustments requires documented, legally appropriate reconciliation.
The model therefore maintains positive payment obligations and potential recoveries as separate ledger entries.
What the January Adjustment Actually Costs the Employer
Gross employee compensation is only one component of Brazil’s employer cost.
A 13th-salary adjustment can also change FGTS deposits, employer social-security contributions and other applicable payroll charges.
To make those costs reproducible, assume the hypothetical company is subject to the following contribution structure.
| Employer cost | Illustrative rate |
|---|---|
| Employer social security contribution (CPP) | 20.0% |
| Adjusted occupational risk contribution (RAT × FAP) | 2.0% |
| Applicable third-party contributions | 5.8% |
| FGTS | 8.0% |
| Combined illustrative rate | 35.8% |
The 20% employer contribution and 8% FGTS rates reflect commonly applicable structures. The 2% adjusted risk contribution and 5.8% third-party rate are assumptions for this company, not universal Brazilian employer rates.
Actual rates depend on the employer’s tax classification, activity, FAP, applicable third-party contribution codes, exemptions and special payroll arrangements. Companies covered by differentiated or substituted contribution regimes may have materially different results.
Original approved budget vs revised employer liability
| Cost component | Original calculation | Revised calculation | Difference |
|---|---|---|---|
| Gross 13th salary | R$132,200.00 | R$134,700.00 | +R$2,500.00 |
| Employer CPP, 20% | R$26,440.00 | R$26,940.00 | +R$500.00 |
| RAT × FAP, 2% | R$2,644.00 | R$2,694.00 | +R$50.00 |
| Third-party contributions, 5.8% | R$7,667.60 | R$7,812.60 | +R$145.00 |
| FGTS, 8% | R$10,576.00 | R$10,776.00 | +R$200.00 |
| Total modeled employer cost | R$179,527.60 | R$182,922.60 | +R$3,395.00 |
The R$2,500 net increase in gross entitlement results in R$895 of additional modeled employer contributions.
Total employer cost increases by R$3,395, assuming the negative adjustments and corresponding employer contribution differences are fully recognized through valid payroll and reporting procedures.
This is the economic reconciliation, not necessarily the immediate cash settlement.
The liquidity difference: R$3,395 vs R$6,790
The company’s six employees with positive differences are collectively owed R$5,000 gross.
The illustrative employer charges attributable to those positive amounts are:
| Cost on positive adjustments | Amount |
|---|---|
| Additional gross 13th salary | R$5,000 |
| CPP, 20% | R$1,000 |
| RAT × FAP, 2% | R$100 |
| Third-party contributions, 5.8% | R$290 |
| FGTS, 8% | R$400 |
| Gross settlement and employer-charge exposure | R$6,790 |
The negative adjustments potentially reduce aggregate gross entitlements by R$2,500 and modeled employer charges by R$895.
That is a possible R$3,395 economic reduction relative to the positive-adjustment exposure.
But its cash realization depends on lawful employee compensation or recovery, accepted payroll corrections, and the treatment of contribution balances.
Consequently, the company should distinguish:
- R$3,395: Net modeled increase in employer cost after all valid positive and negative adjustments.
- R$6,790: Positive-only gross payment and related employer-charge exposure before employee withholding, recoveries and contribution offsets are considered.
- R$2,500: Negative gross employee differences that require separate compensation or recovery assessment.
The R$6,790 amount is not a prediction of a single January bank transfer. Employee INSS and IRRF withholding affect net employee payments, and employer contributions have their own collection schedules.
The distinction is a liquidity-planning bridge between positive obligations and the eventual net expense.
Why the employee’s net adjustment is not simply the gross difference
The tables deliberately avoid inventing individual net payments.
Brazilian employee social-security contributions and income-tax withholding must be recalculated using the relevant 13th-salary tax treatment, deductions, applicable rates and employee-specific circumstances.
An employee already at the applicable INSS contribution ceiling may experience a different marginal withholding effect from an employee below that ceiling.
The 13th salary also has distinct income-tax treatment from ordinary monthly salary.
Therefore, a correct reconciliation requires three additional employee-level values:
Net January payment = Positive gross complementary entitlement − applicable additional employee withholding
Any negative withholding differences or compensation arrangements need separate validation.
Payroll teams should not apply the employer’s 35.8% example rate to calculate employee withholding. It represents employer-side liabilities only.
What belongs in December’s accounting records?
The 13th-salary adjustment arises from employee remuneration earned during 2026.
Even when the complementary payment occurs in January 2027, the liability relates economically to the preceding year’s employee services.
For year-end financial reporting, the employer should evaluate the appropriate December 2026 accrual using its accounting framework and the information available before finalizing the financial statements.
That creates three different dates which should not be confused:
| Dimension | Relevant period |
|---|---|
| Employment service and commission entitlement | 2026 |
| Complementary payment | By January 10, 2027 |
| eSocial reporting | December 2026 or the permitted January 2027 reporting route |
January’s cash payment does not automatically mean the entire associated expense belongs in the 2027 financial year.
How to Report the 13th-Salary Complement in eSocial
The eSocial reporting treatment is especially important because older public guidance and the newer technical manual do not describe the available reporting routes identically.
The current eSocial Manual de Orientação, version S-1.3 consolidated through Note 11/2026, permits a January reporting route for qualifying December variable-remuneration adjustments.
The manual identifies nature code 5005 — 13º salário complementar and specific 13th-salary incidences for social-security contributions, FGTS and income tax.
For a company using the January route, the technical guidance includes:
| eSocial field or event | Treatment |
|---|---|
| S-1010 | Register the specific complementary 13th-salary earning code |
| Nature code | 5005 |
| S-1200 period | January of the following year |
| Group | infoPerAnt |
tpAcConv | J |
perRef | 2026-12 for a 2026 adjustment |
codIncCP | 12 |
codIncFGTS | 12 |
codIncIRRF | 12 |
| S-1210 | Report the payment in the actual payment month, with the correct linked demonstrative |
The January route is not an instruction to report the complement as ordinary January salary or to create another complete annual 13th-salary payroll.
It identifies the complementary amount as relating to the preceding December.
The annual 13th-salary payroll and its associated payments must still be handled correctly.
A practical 2026–2027 reporting timeline
| Period | Payroll action |
|---|---|
| November 2026 | Pay and report the required first installment, with applicable FGTS |
| December 2026 | Calculate and settle the annual 13th salary by the applicable deadline |
| Late December 2026 | Finalize eligible December commissions and identify employee-level differences |
| Early January 2027 | Approve and pay positive complements, and evaluate negative differences |
| January 2027 | Report qualifying complements through the applicable eSocial route and reconcile associated charges |
| Subsequent statutory due dates | Settle the corresponding FGTS, social-security and withholding obligations |
January 10, 2027 falls on a Sunday.
Employers relying on the statutory January 10 deadline should plan to complete payment by Friday, January 8, rather than assume that an automatic extension applies.
They must also check whether an applicable collective bargaining agreement imposes an earlier deadline.
Why some eSocial instructions appear inconsistent
The eSocial business FAQ, question 10.6, updated April 8, 2025, directs employers to report the complement in the December monthly payroll.
However, the later 2026 Manual de Orientação expressly describes both the December monthly reporting option and the January infoPerAnt route.
That version difference matters.
An employer following an older vendor configuration or FAQ without checking the later technical manual may apply a reporting workflow that differs from current documentation.
The appropriate approach is to verify the eSocial version implemented by the payroll provider, confirm the applicable reporting scenario, and reconcile the transmitted events and resulting tax calculations.
The distinction is also important for FGTS Digital.
FGTS is calculated on the applicable 13th-salary bases. The November advance, December annual balance and complementary amount must not be duplicated when generating or reconciling FGTS obligations.
The Ministry of Labor’s FGTS Digital guidance explains that the first installment and annual balance are treated differently, and that automatic compensation of revised FGTS amounts is subject to specific restrictions concerning competence and tax allocation.
This makes payroll reporting consistency a financial control, not merely a technical filing detail.
The Reconciliation Controls an Employer Should Complete Before Closing January
A complete January reconciliation should connect five records: commission source data, the original 13th-salary calculation, the revised entitlement, payroll and bank settlements, and statutory liabilities.
Control 1: Verify that December commissions belong in the calculation
Start with the approved commission ledger rather than bank payment dates alone.
Confirm when the commissions became due under the employment contract and applicable rules, which adjustments are legitimate, and which variable remuneration components enter the annual 13th-salary base.
A sales transaction recorded in December is not automatically equivalent to a legally due commission amount.
The treatment of canceled sales, installment transactions, rest-day remuneration and commissions not yet determined must be checked against the governing rules.
Control 2: Recalculate each employee separately
The employer should retain the following minimum reconciliation fields:
| Field | Purpose |
|---|---|
| Employee or payroll ID | Prevent duplicate or omitted records |
| Eligible fixed remuneration | Establish fixed component |
| January–November variable remuneration | Establish initial averaging base |
| December eligible variable remuneration | Identify the newly known amount |
| Original gross 13th salary | Confirm amount already calculated |
| Recalculated gross 13th salary | Establish final entitlement |
| Gross complementary difference | Identify positive or negative adjustments |
| Employee withholding adjustment | Determine net payment or recovery position |
| Employer contribution adjustment | Recalculate total employer liabilities |
| Actual payment and reporting references | Connect payroll to bank, eSocial, DCTFWeb and FGTS records |
The payroll system should reconcile aggregate amounts only after individual records have been validated.
A company-level net calculation cannot replace employee-level settlement controls.
Control 3: Maintain separate positive and negative adjustment balances
In the ten-person example, the correct reconciliation is:
| Reconciliation item | Amount |
|---|---|
| Positive employee gross adjustments | +R$5,000 |
| Negative employee gross adjustments | −R$2,500 |
| Net gross entitlement change | +R$2,500 |
| Net modeled employer-charge change | +R$895 |
| Net modeled employer-cost change | +R$3,395 |
Payroll must then document which negative differences were lawfully compensated, which remain outstanding, and how corresponding statutory payments or credits were handled.
Do not treat the negative balance as immediately available cash until its recovery or compensation has been established.
Control 4: Reconcile the employer contribution bases
For each employee, compare:
- Original 13th-salary contribution base.
- Revised 13th-salary contribution base.
- Any changes to employer CPP, RAT/FAP, third-party contributions and FGTS.
- Employee INSS and IRRF recalculations.
- Amounts already reported and paid.
- Outstanding statutory obligations, credits or adjustment requests.
Where a tax or FGTS declaration has already been settled, a mathematical reduction in the contribution base does not necessarily create an immediate cash refund or automatic cross-period offset.
Use the applicable correction and credit procedures rather than making an unsupported adjustment in the accounting ledger.
Control 5: Check collective bargaining provisions before applying the model
The general statutory formula is not the end of the analysis.
Collective bargaining agreements can contain specific provisions affecting commission averages, indexation, payment timing and other payroll components.
For example, collective agreements published in Brazil’s official Mediador system contain variations involving commission averaging, inflation adjustments and deadlines for complementary payments.
Some agreements require payment by the fifth business day of January, rather than relying solely on the general January 10 deadline.
Others address the monetary adjustment of commissions from earlier months before computing the average.
These provisions can change both the initial 13th-salary estimate and the eventual complementary amount.
The ten-person model does not apply inflation indexation, special collective-agreement averaging or additional remuneration components. Those inputs would need to be added for employers subject to such provisions.
The employer-cost lesson
A December commission spike is not merely a December sales-payroll event.
It can also change the annual 13th-salary calculation, create an additional employee payment obligation, increase employer contributions, and require reconciliation across two calendar years.
For the hypothetical ten-person team:
Original modeled employer cost: R$179,527.60
Revised modeled employer cost: R$182,922.60
Net additional modeled cost: R$3,395.00
Positive-only gross settlement and employer-charge exposure: R$6,790.00
The gap between the last two figures illustrates why an employer should not budget the January payment using only the aggregate net payroll adjustment.
The proper comparison is between the original approved employer-cost budget, the final employee-level entitlement, the resulting statutory liabilities and the actual amounts that must still be settled.
For companies hiring or managing sales employees in Brazil, that reconciliation is a useful part of workforce cost forecasting.
Ivvora’s employer-cost approach is to separate gross compensation from the employer liabilities and payment timing that determine the actual cost of employment.
The December-to-January 13th-salary adjustment demonstrates why that distinction matters: payroll expense, statutory reporting and cash settlement can move on different timelines even when they originate from the same employee compensation.
Frequently Asked Questions
Can December commissions increase an employee’s 13th salary after the second installment was paid?
Yes. Eligible December commissions can increase the annual average of variable remuneration. The employer must calculate and settle the qualifying complementary difference by the applicable deadline.
Is the full December commission amount added to the 13th salary?
No. Under the model’s general twelve-month averaging method, the December amount changes the annual average. For an employee with unchanged fixed salary and a full year of service, the change equals one-twelfth of the difference between December eligible commissions and the average eligible monthly commissions from January through November.
Must every employee receive an additional January payment?
No. The adjustment can be positive, zero or negative. Positive differences create additional entitlements. Negative differences require legally appropriate compensation or reconciliation and should not automatically be deducted from unrelated salary.
Does the employer owe FGTS on the complementary 13th salary?
Generally, yes, where FGTS applies. The complement must be classified with the appropriate 13th-salary incidence, and the employer must reconcile the resulting base and deposit against amounts already reported and paid.
Can the complement be reported in January instead of reopening December payroll?
The 2026 eSocial manual describes a January S-1200 reporting route using infoPerAnt, tpAcConv = J, the December reference period and nature code 5005. Employers should verify the circumstances and current technical configuration before using it.
Does paying the complement in January make it an ordinary January salary expense?
Not necessarily. The complement relates to 13th-salary entitlement arising from the preceding year’s services. Its financial-statement recognition should be assessed under the employer’s accounting framework, independently from the cash-payment date.
Sources and Calculation Methodology
This article uses a synthetic ten-employee dataset to demonstrate the employer-cost implications of December commission adjustments. It is not based on an identifiable company’s payroll.
All amounts are denominated in Brazilian reais. Employee service is assumed to cover the full calendar year, fixed salary is assumed unchanged, and the model excludes special collective-agreement provisions, rest-day adjustments, other eligible variable remuneration and individual withholding calculations.
Employer contribution rates are illustrative and must be replaced with the employer’s actual rates before operational use.
The financial results are derived from employee-level calculations. Gross adjustments are aggregated separately from potential compensation and recovery amounts. Employer contribution changes are calculated using the stated assumptions.
Primary legal and technical sources:
- Decree 10,854/2021, Article 77. Defines the calculation and January revision of the 13th salary for variable-remuneration employees. Official legislation.
- eSocial Manual de Orientação, version S-1.3, consolidated through Note 11/2026. Provides reporting instructions for the annual 13th salary, complementary remuneration, incidence codes and the January prior-period route. See section 10.3.4 and the S-1200 event guidance. Official technical manual.
- eSocial — Frequently Asked Questions for Employers, question 10.6. Contains the April 2025 explanation of reporting complementary 13th salary. Official FAQ.
- Ministry of Labor and Employment — FGTS Digital Frequently Asked Questions. Explains FGTS treatment for 13th-salary advances, annual payroll and adjustments. Official FGTS Digital guidance.
- Receita Federal — Social Security Contributions for Legal Entities. Explains general employer contributions and occupational risk rates. Official employer contribution guidance.
- Consolidação das Leis do Trabalho, Article 462. Provides the framework restricting employee salary deductions. Official CLT legislation.
- Ministry of Labor — Mediador. Official repository of collective bargaining instruments, including provisions concerning commission calculations and 13th-salary treatment. Example of a registered 2026 collective agreement.
Regulatory and technical sources reviewed: October 2026. This is an employer-cost analysis, not individualized payroll, accounting or legal advice. Actual filings, withholding, collective-agreement provisions and payment deadlines should be verified against the rules applicable to the employer and employee.
Ivvora provides research and planning information. Country-specific legal, employment, tax and payroll decisions should be reviewed against current requirements and the facts of the individual case.
Explore hiring costs →