Two CNSS ceilings. A new 2026 tax. Congo payroll, solved.
Congo-Brazzaville payroll is not a configuration exercise. It demands a CNSS engine with branch-specific ceilings, the brand-new 2026 ITS salary-tax scale (Law 42-2025), CAMU solidarity threshold logic, the 7.5% unique salary tax, and in-country people with direct authority relationships. Most providers deliver two of these. Mercans delivers all of them – on a single proprietary stack with no intermediaries.
native payroll
vs nearest peer
since inception
- Salary Tax (ITS)
- Progressive to 30% (2026)
- Corporate Tax
- 28%
- CNSS Employer
- 20.28% (part-capped)
- CNSS Employee
- 4% pension (cap XAF 1.2M)
- Unique Salary Tax (TUS)
- 7.5% employer · uncapped
- CAMU Solidarity
- 0.5% above XAF 500,000
- Pension Ceiling
- XAF 1,200,000 / month
- Family Alloc. Ceiling
- XAF 600,000 / month
- Minimum Wage (SMIG)
- XAF 70,400 / month
- Working Week
- 40 hours
- Annual Leave
- 26 working days
- Overtime
- 130% / 160% / 200%
- Notice Period
- 14 days + 7/yr service
- ITS Filing
- By 15th of next month
- Currency
- XAF · EUR peg 655.957
Payroll compliance: the details that can’t be missed
Congo’s regulators don’t grade on a curve. The DGID audits ITS withholding against the new 2026 scale. The CNSS reconciles contributions against branch-specific ceilings that most systems collapse into one. The CAMU solidarity levy is missed whenever taxable pay crosses XAF 500,000. Late TUS payment attracts a 10% surcharge per month. None of these failures announce themselves – they accumulate silently until an inspection makes them very visible.
CNSS ceiling & base errors
Pension is capped at XAF 1,200,000/month but family allowances and work-accident contributions are capped at only XAF 600,000/month. Applying one ceiling to all branches under- or over-remits – both are recoverable with interest on CNSS audit.
ITS mis-withholding under Law 42-2025
The 2026 Finance Law replaced the old IRPP with the ITS: a five-band annual per-share scale on a 20%-abated base. Systems still running the pre-2026 IRPP brackets under-withhold and expose the employer to DGID reassessment.
CAMU solidarity omission
The 0.5% CAMU solidarity levy applies only to the portion of monthly taxable pay above XAF 500,000. Providers that ignore the threshold either miss the levy entirely or wrongly apply it to the whole salary.
Late TUS + 10% monthly surcharge
The 7.5% unique salary tax (TUS) and ITS are both due to the DGID by the 15th of the following month. Late payment triggers a 10% surcharge per month of delay on the amount owed – compounding quickly across a headcount.
The three types of providers who struggle with Republic of the Congo
Global Aggregator Platforms
Platforms like Deel, Remote, and Rippling operate through a partner network in Congo – they don’t own the entity, don’t directly manage CNSS, and don’t control the compliance relationship. When regulations change – as the entire salary tax did in 2026 – the instruction travels: platform → partner → your payroll. Each handoff introduces delay and interpretation risk.
- ×No direct CNSS relationship – third-party intermediary handles filings
- ×Branch-specific contribution ceilings collapsed into one
- ×2026 ITS reform (Law 42-2025) applied late or not at all
- ×Regulatory updates filtered through partner SLAs, not live
Large Global Payroll Incumbents
ADP, Ceridian, and similar incumbents have Congo coverage – in name. In practice, their Central-Africa coverage is often delivered through regional partners or legacy systems that weren’t built for Congo’s dual CNSS ceilings, the CAMU solidarity threshold, or the new 2026 ITS per-share scale.
- ×Pension vs family/AT ceilings hardcoded – not modelled separately
- ×CAMU 0.5% threshold logic handled manually
- ×TUS 7.5% payroll tax often omitted from scope
- ×Long implementation timelines – Congo not a core market
Local Congolese Firms
Local Congolese accounting and fiduciary firms know the market – but they can’t scale with you. No payroll technology platform, no HRIS integration, no multi-country consolidation, and no data security certifications that multinationals require. Fine for 10 employees. Inadequate at 100.
- ×No proprietary payroll technology – manual spreadsheet-based processing
- ×No HCM connector – Workday, SAP, Oracle feeds require custom work
- ×No data security certifications (SOC 1/2, ISO 27701, BCR)
- ×No CEMAC consolidation – cannot report across Congo + other XAF entities
The only provider that closes every gap
Mercans is the only Congo payroll provider that combines a proprietary payroll technology stack, full-time in-country compliance teams, direct DGID and CNSS relationships, and enterprise-grade data security – simultaneously, on one contract, with no intermediaries.
The only engine built for Congo’s actual payroll architecture
G2N Nova™ is the world’s only API-first gross-to-net payroll engine. It natively models Congo’s CNSS branches as distinct calculation layers with their own ceilings, applies the 2026 ITS per-share scale on a 20%-abated base, enforces the CAMU solidarity threshold, and computes the 7.5% TUS automatically. This isn’t configuration. It’s engineering.
Full-time Congo team – not a partner you phone when things break
Mercans employs full-time payroll and compliance professionals for Congo. They maintain active relationships with the DGID, CNSS, and CAMU – not through a contact directory, but through ongoing regulatory engagement. When the Finance Law rewrites the salary tax, when CNSS updates a ceiling, when CAMU revises a rate – we know before it reaches your inbox.
The security posture multinationals require – and Congo’s data law now mandates
Congo’s Law No. 29-2019 on the protection of personal data requires processors handling employee data to maintain documented privacy controls. Mercans holds BCR approval, ISO 27701 certification, SOC 1 & 2 certifications, and ISO 27017/27018 – a certification stack unmatched by any payroll provider in Central Africa. Zero security breaches since inception.
Where Mercans wins on every Congo-specific capability
Each row is a Congo-specific capability. Each cell shows native coverage as a fill bar – full = native in-platform, half = partial / manual workaround, empty = gap.
Congo Capability Coverage · 10 dimensions
1.2M pension / 600k family-AT
Law 42-2025
above XAF 500,000
Every rate. Every cap. Every obligation.
Congo payroll operates on exact numbers with hard deadlines. Mercans builds every figure below into G2N Nova™ and monitors them proactively – so you’re never discovering a rate change from a penalty notice.
Republic of the Congo · Rate & Compliance Dashboard
Live 2025–26Branch-Specific CNSS Ceilings – Not One Cap
The pension branch caps at XAF 1,200,000/month while family allowances and work-accident contributions cap at XAF 600,000/month. A compliant Congo payroll applies the correct ceiling to each branch independently. Mercans’ G2N Nova™ maintains them as separate layers – not a blended base.
→ Per-branch ceiling logic in G2N Nova™The 2026 ITS Reform Changed the Whole Scale
Law No. 42-2025 replaced the IRPP-on-salary with the ITS from 1 January 2026. The base is gross minus 4% CNSS pension minus a 20% abatement, split into family shares, then taxed on the annual five-band scale. Pre-2026 brackets are obsolete.
→ Law 42-2025 ITS scale live in G2N Nova™TUS Consolidates Four Employer Payroll Taxes
The 7.5% unique salary tax replaces the lump-sum salary tax, apprenticeship tax, National Housing Fund contribution, and National Employment Office contribution. It is uncapped, employer-borne, and paid to the DGID with the monthly ITS return.
→ TUS auto-computed with the ITS returnCAMU Solidarity Is Threshold-Based
The CAMU universal-health solidarity levy of 0.5% applies only to the portion of monthly taxable pay above XAF 500,000. Optional conventional CAMU complementary cover (2.27% employee / 4.55% employer) applies where a collective agreement provides for it.
→ Threshold and conventional CAMU handled nativelyRun a Congo payroll. Right here, right now.
Switch worker type. Move the slider. Every number you see is the same calculation G2N Nova™ runs in production – CNSS multi-branch ceilings, the 2026 ITS per-share scale, CAMU solidarity threshold, and true cost of employment exposed live.
Congo Social Contribution Calculator · Live
G2N Nova™ engineEight things only Congo experts know to handle
These are the compliance details that don’t appear in standard payroll setup guides – but appear in every DGID reassessment, CNSS reconciliation, and labour inspection we’ve encountered in Congo-Brazzaville.
CNSS Uses Two Different Contribution Ceilings
Pension (PVID) contributions are capped at XAF 1,200,000/month, but family allowances and work-accident contributions are capped at only XAF 600,000/month. A single blanket ceiling across all branches is the most common Congo CNSS error – and it cuts both ways on audit.
The 2026 Finance Law Replaced IRPP with ITS
Law No. 42-2025 abolished the old IRPP-on-salary and introduced the ITS from 1 January 2026: a five-band annual scale (flat XAF 1,200 up to 615,000, then 10/15/20/30%) applied per family share. Any engine still running pre-2026 brackets is now wrong.
20% Professional-Expense Abatement Before Tax
ITS is computed on gross reduced by the 4% employee CNSS pension, then by a flat 20% professional-expense abatement. Benefits in kind (housing at 20% of salary, vehicle at 3%, etc.) are added back at standardised values. Skipping the abatement over-taxes every employee.
CAMU Solidarity Applies Only Above XAF 500,000
The 0.5% CAMU universal-health solidarity levy is charged only on the portion of monthly taxable pay (gross minus employee CNSS) exceeding XAF 500,000. Below that threshold there is no levy; above it, only the excess is charged – not the whole salary.
The 7.5% Unique Salary Tax Consolidates Four Old Taxes
The employer-borne TUS at 7.5% of total gross payroll replaces the former lump-sum salary tax, apprenticeship tax, National Housing Fund contribution, and National Employment Office contribution. It is uncapped and filed to the DGID alongside ITS.
Family Quotient Splits Income Into Shares
ITS is assessed per family share (part): a single person is 1 part, married is 2, plus 0.5 per dependent child, capped at 6.5 parts. Applying the scale to whole income instead of income-per-share materially over-taxes employees with families.
Foreign Assignees Face a 20% Flat Regime
Salaries of foreign employees on limited-period assignments are taxed at a flat 20%, distinct from the resident ITS scale. Domiciled individuals – Congolese or foreign – are taxed on worldwide income; non-domiciled only on Congo-source income.
XAF Peg and CEMAC Coordination
Congo uses the Central African CFA franc (XAF), pegged to the euro at 655.957. Companies operating across the six CEMAC states face parallel social-security bodies and tax authorities per country – consolidation is a reporting problem, not a copy-paste.
One workforce. Two entirely different compliance tracks.
Local and CEMAC nationals on full CNSS vs. expatriate assignees on the 20% flat regime require two distinct compliance frameworks, two tax treatments, and two different end-of-contract settlements. Mercans runs both simultaneously on every pay cycle.
Parallel Compliance Engines
CNSS registration from Day 1. Employer pension 8%, family allowances 10.03%, work-accident 2.25%; employee pension 4%. Each branch carries its own ceiling – pension XAF 1.2M, family and AT XAF 600k.
ITS on the 2026 per-share scale. Salary tax is computed on gross minus 4% CNSS minus a 20% abatement, divided into family shares, then taxed 1,200 flat then 10/15/20/30%.
CAMU solidarity above XAF 500,000. The 0.5% levy applies only to taxable pay exceeding XAF 500,000/month. Employer also carries the uncapped 7.5% TUS on total gross.
Filed monthly to two administrations. ITS and TUS to the DGID by the 15th; CNSS contributions to the fund on its own cadence. Late payment carries a 10% monthly surcharge.
Limited-period assignees face a 20% flat tax. Salaries of foreign employees on limited-period assignments are taxed at a flat 20%, distinct from the resident ITS scale – a common source of over- or under-withholding.
Residency drives the tax base. Individuals domiciled in Congo are taxed on worldwide income; non-domiciled assignees only on Congo-source income. Treaty relief depends on the posting.
Social security still bites. Assignees working locally generally remain within CNSS unless a bilateral coordination exempts them – the pension 4% cap at XAF 1.2M still applies.
Work and residence permits are mandatory. Foreign hires require valid work authorisation; misclassification and permit gaps are frequent labour-inspection triggers.
Every obligation. Every authority. Mercans owns the calendar.
Congo compliance runs across the DGID, CNSS, and CAMU on monthly, annual, and event-triggered cadences. Mercans’ managed payroll absorbs every filing as standard scope – you don’t track deadlines. We do.
ITS Withholding Return
Salary tax withheld in month N under the 2026 per-share scale, remitted to the DGID by the 15th of month N+1. Late payment carries a 10% surcharge per month of delay.
Unique Salary Tax (TUS)
Employer-borne 7.5% on total gross payroll, uncapped, filed alongside the ITS return to the DGID. Consolidates the former lump-sum salary tax, apprenticeship tax, housing fund, and employment office contributions.
CNSS Contribution Declaration
Pension (8% employer / 4% employee), family allowances (10.03%), and work-accident (2.25%) contributions declared and paid to the CNSS, each on its own branch ceiling.
CAMU Solidarity Remittance
The 0.5% universal-health solidarity levy on taxable pay above XAF 500,000 per month, remitted to the CAMU. Optional conventional CAMU cover applies where a collective agreement provides for it.
Annual Salary Declaration (DAS)
Consolidated annual declaration of salaries paid and taxes withheld per employee, filed with the DGID. The primary reconciliation baseline against monthly ITS returns.
Corporate Tax (IS) Return
Annual corporate income tax return at the 28% standard rate, filed with the DGID and reconciled against provisional instalments paid during the year.
End-of-Contract Settlement
Final settlement covering notice (14 working days plus 7 per full year of service), accrued leave, and any contractual or collective-agreement indemnities. There is no statutory severance formula – entitlements are contract- and CBA-driven.
CNSS Hire / Exit Registration
Immatriculation of new employees and de-registration on exit with the CNSS. Late or missing registration blocks social-insurance entitlements and flags the employer on reconciliation.
Congo is one market. Mercans covers all of CEMAC.
For companies running payroll across the Central African franc zone, complexity multiplies – not adds. Each CEMAC country runs its own tax authority, social insurance body, and filing mandate. Mercans covers the major XAF markets on a single platform with country-specific compliance engines running in parallel.
covered
1 contract
consolidation
CEMAC
Every filing. Every format. Submission-ready.
Mercans generates the exact file types that the DGID, CNSS, and CAMU expect to receive – not formatted summaries that need reformatting before you can submit them.
