Brazilian labor liability: auditing suppliers under Súmula 331 to avoid subsidiary responsibility

TL;DR: TST Súmula 331 maintains the hirer’s subsidiary liability even after the 2017 labor reform and the 2018 STF decision. If your outsourced supplier doesn’t pay workers, you pay. Brazil records 200,000 new labor claims/month and private sector labor liability exceeds R$ 50 billion/year. This guide covers: what the Súmula says, how to calculate exposure, how to audit suppliers (judicial search + CNDT + documents + contract clauses), real audit cost (R$ 0.50-48 per cycle vs R$ 1.5M in risk), and a 12-item checklist.

Brazil records 200,000 new labor cases per month. Private sector labor liability exceeds R$ 50 billion per year based on estimates from the CNJ Justice in Numbers 2024. And a significant portion of this liability doesn’t come from direct employees — it comes from outsourced workers.

TST Súmula 331 establishes that the service-receiving company is subsidiarily responsible for the outsourced supplier’s labor obligations. In practice: if your cleaning, security, IT, or logistics supplier doesn’t pay the workers providing service at your company, the Labor Court can collect from you.

That’s why a complete judicial due diligence on suppliers is the best insurance against subsidiary liability. And for ongoing suppliers, continuous monitoring is what keeps the insurance active.

What Súmula 331 says — literal text + explanation

The Superior Labor Court (TST) consolidated in item IV of Súmula 331:

“The default on labor obligations by the employer implies the subsidiary liability of the service recipient regarding those obligations, provided they participated in the judicial proceedings and are also included in the enforceable judgment.”

Translation: if you hire an outsourced company and it fails to pay salaries, FGTS, vacation, or severance to the workers serving you, the Labor Court can collect from you — as long as you were included in the case (which the worker’s lawyer almost always does).

When it applies

• Service outsourcing (cleaning, security, IT, reception, call center, logistics)
• Service contracts with personnel allocation
• Subcontracting in construction and projects
• Any relationship where workers from one company provide service at or under the coordination of another

What you owe as hirer (if the supplier doesn’t pay)

• Unpaid salaries and benefits
• FGTS and social security contributions (INSS)
• Vacation, 13th salary, severance
• Workplace accident indemnities
• Moral damages from the employment relationship
• 40% FGTS penalty + unpaid overtime

What the labor reform changed (and what it DIDN’T)

Law 13,467/2017 (labor reform) and Law 13,429/2017 (unrestricted outsourcing) brought significant changes — but did not eliminate Súmula 331:

What changed	What did NOT change
Outsourcing became lawful for any activity (including core business)	Subsidiary liability continues (Súmula 331 unchanged)
Companies can outsource without activity-type restrictions	Companies still owe if the supplier doesn’t pay
STF validated unrestricted outsourcing (ADPF 324, RE 958,252, 2018)	STF maintained subsidiary liability as a guarantee

The reform expanded which activities can be outsourced. It did not reduce financial risk. In fact, it increased it — because more outsourced activities = more exposure points.

Risk in practice — 2 concrete scenarios

Scenario 1 — Facility management company with 500 suppliers

A retail chain with 120 stores across 8 states contracts cleaning, security, and maintenance via 500 local suppliers (small regional companies). No judicial audit. In 3 years:

• 38 suppliers accumulate unpaid labor claims
• 210 workers include the retail chain as co-defendant (subsidiary liability)
• Accumulated liability: R$ 7.3 million in convictions + R$ 1.8 million in accounting provisions (CPC 25)
• Legal costs: R$ 900k in attorney fees defending 210 cases
• Total: ~R$ 10 million in 3 years

If the chain had done quarterly audits on 500 suppliers: 500 × 5 courts × 4 quarters × R$ 0.10 = R$ 1,000/year. 3-year cost: R$ 3,000. Hypothetical savings: R$ 9,997,000.

Scenario 2 — Pejotização and employment recognition

A tech startup hires 15 “PJ consultants” who work exclusively for the company, in the office, 9-to-6, taking orders from the CTO. Legally, this is fraudulent pejotização. 8 of the 15 sue the company seeking employment recognition + 5 years of back pay.

• Likely conviction per PJ: R$ 80,000-150,000 (5 years of benefits + penalties + FGTS)
• Total for 8 PJs: R$ 640,000-1,200,000
• Liability type: joint (worse than subsidiary)

How to audit suppliers — the complete process

Step 1 — Judicial verification before contracting

Before signing a contract with any supplier that will allocate personnel at your company, search:

• How many labor claims does the CNPJ have? And the shareholders’ CPFs?
• What’s the volume of claims? Dozens indicate systemic problems
• What’s the pattern of claims? Always about severance? FGTS? Harassment?
• Are there active labor executions? (indicate unpaid convictions — maximum red flag)
• Do shareholders have history of previous defaulting companies? (serial offender)

The labor audit solutions landing explains how Vigilant fits this workflow. To understand court systems, the ESAJ vs PJE guide covers the 12 integrated courts.

Step 2 — Exposure calculation (practical formula)

Simplified formula to estimate a specific supplier’s financial risk:

Exposure = # active cases × Average conviction value × Estimated loss rate

Practical example:

• Security supplier, 12 active labor claims
• Average conviction in TRT2 (São Paulo Capital): R$ 35,000
• Estimated loss rate (cases with weak employer evidence): 65%
• Exposure = 12 × R$ 35,000 × 0.65 = R$ 273,000

Step 3 — Monthly document requirements

Beyond judicial verification, require monthly from suppliers:

• Salary payment receipts for allocated workers
• GFIP/eSocial filings
• FGTS and INSS payment slips
• CNDT — Labor Debt Clearance Certificate (free lookup at TST)

Note: CNDT only captures debts that have become final and registered. Pending cases — where future liability lives — don’t appear in CNDT. That’s why direct judicial search in courts is needed as a complement.

Step 4 — Contractual protection clauses

Every supplier contract renewal should include:

Clause	What it protects
5-10% payment retention as labor guarantee	Cash available for covering convictions
Immediate termination right if supplier accumulates > X cases	Exit before exposure grows
48h notification obligation for new cases	Early warning system
Audit right over labor documentation at any time	Active verification, not passive
Guarantee insurance for high-risk suppliers	Third party covers the liability

Step 5 — Continuous monitoring

Checking once isn’t enough. Suppliers can deteriorate over time — and silent deterioration is exactly what generates the largest liabilities.

Supplier risk	Monitoring frequency	Cost (via API)
Low (< 5 cases)	Semi-annual	R$ 0.50-1.00/cycle
Medium (5-15 cases)	Quarterly	R$ 0.50-1.00/cycle
High (> 15 cases or active executions)	Monthly	R$ 0.50-1.00/cycle

The continuous lawsuit monitoring post details how to build an automated flow that runs periodically and alerts when a supplier’s risk profile changes.

Alert signals — when to act immediately

Signal	Meaning	Action
10+ active labor claims	Systemic problem, not one-off	Review contract + require action plan
Claims from recent employees (last 6 months)	May be failing to pay current benefits	Withhold payments + require proof
Active labor executions	Already convicted and DIDN’T pay	Activate termination clause
Shareholders with defaulting company history	Serial offender	Consider preventive termination
Cases in 3+ states	National problem, not regional	Escalate to management
CNDT loss	Final debts registered	Mandatory escalation — may be regulatory impediment

Accounting provision — CPC 25 / IAS 37

CPC 25 (equivalent to IAS 37) requires companies to provision labor contingencies:

• Probable (> 50% loss chance): full provision on balance sheet
• Possible (25-50%): disclosure in notes
• Remote (< 25%): no action required

To classify correctly, the legal department needs to know:

1. How many cases exist against the company and its suppliers
2. Individual and aggregate values
3. Stage of each case (discovery, trial, appeal)
4. Historical outcomes in similar cases in the jurisdiction

This data comes from courts, not credit bureaus. Automating collection via API allows monthly provision updates instead of only at annual close — which the Federal Revenue and auditors increasingly require.

Audit cost vs risk cost

Scenario	Queries	Audit cost	Risk avoided
1 supplier (5 courts)	5	R$ 0.50	R$ 50k-300k subsidiary liability
1 supplier + shareholders (10 courts)	30	R$ 3.00	Serial offender detection
20 suppliers (full audit)	600	R$ 60.00	R$ 1-10M accumulated liability
20 suppliers × 4 quarters (annual monitoring)	2,400	R$ 240/year	Early deterioration detection

Full pricing at /en/pricing/.

12-item supplier audit checklist

• Search supplier CNPJ in labor courts (regional TRT)
• Search shareholders’ CPFs across multiple courts
• Check active labor executions (unpaid convictions)
• Analyze volume and pattern of claims (severance? harassment? FGTS?)
• Check shareholder history in previous companies (serial offender?)
• Calculate exposure using the formula (cases × avg value × loss rate)
• Require updated CNDT (Labor Debt Clearance Certificate)
• Require monthly proof of salaries, FGTS, INSS
• Include protection clauses in contract (retention, termination, notification, audit)
• Provision contingencies per CPC 25 (probable / possible / remote)
• Establish periodic monitoring (quarterly minimum)
• Document everything — full audit trail for defense in eventual litigation

Glossary

Term	Definition
Súmula 331	TST consolidated ruling on outsourcing liability
Subsidiary liability	Secondary obligation — only pays if the primary debtor doesn’t
Joint (solidary) liability	Joint obligation — can be collected from either debtor
Pejotização	Hiring as PJ (legal entity) to disguise employment
CNDT	Labor Debt Clearance Certificate (issued by TST)
CPC 25	Accounting pronouncement on contingency provisions
TRT	Regional Labor Court
Exposure	Estimated future financial risk value
CLT	Consolidation of Labor Laws (Decree-Law 5,452/1943)
FGTS	Guarantee Fund for Time of Service

Conclusion

Súmula 331 didn’t disappear with the labor reform. The risk of subsidiary liability is real, measurable, and preventable. The difference between companies that suffer from supplier labor liability and those that don’t is, in most cases, a matter of systematic auditing — not luck.

The cost of auditing is negligible compared to risk. R$ 60 in API queries vs R$ 1.5 million in convictions. The math isn’t opinion.

If you want to implement structured supplier labor auditing, the labor audit solutions landing details how Vigilant fits the workflow. To integrate into your ERP or procurement system, the technical docs have the path.

---

Check your suppliers’ labor liability. 5 free credits on signup, no credit card. Start now.