Fortnightly SWT. Super to Nasfund. PNG payroll, solved.
Papua New Guinea’s payroll is not a configuration exercise. It demands a fortnightly Salary & Wages Tax engine, dual superannuation contributions to an Authorised Super Fund, resident vs non-resident SWT rating, dependant-declaration rebates, 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
- Employer Superannuation
- 8.4% of gross basic
- Employee Superannuation
- 6% minimum (citizens)
- Super Mandatory Threshold
- Employers with 15+ staff
- Personal Income Tax
- 0–42% (SWT fortnightly)
- Tax-Free Threshold
- K20,000/yr = K769.23/fortnight
- Non-Resident SWT
- 22% first band, no threshold
- Corporate Tax
- 30%
- Training Levy
- 2% on payroll > K200,000
- National Social Security
- None beyond super
- Minimum Wage
- K5.00/hr from 1 Jan 2026
- SWT Remittance
- 7th of following month
- Annual Reconciliation
- 31 March
- Pay Cycle
- Fortnightly standard
- Dependant Rebates
- Up to K1,050/yr (max 3)
- Currency
- PGK (Kina) · local only
Payroll compliance: the details that can’t be missed
PNG’s regulators don’t grade on a curve. The Internal Revenue Commission audits SWT remittances against fortnightly tax tables and charges 20% penalty interest on shortfalls. Authorised Super Funds reconcile employer schedules against declared salaries. Directors are personally liable for unremitted SWT. The training levy applies automatically once payroll crosses K200,000. None of these failures announce themselves – they accumulate silently until an audit makes them very visible.
SWT under-withholding + 20% penalty
Applying the wrong fortnightly tax table, missing the resident/non-resident distinction, or ignoring dependant declarations triggers retroactive SWT assessments plus penalty interest at 20% per annum. Company directors are personally liable for unremitted amounts.
Superannuation non-remittance to ASF
Employers with 15 or more staff must remit 8.4% employer and 6% employee contributions to an Authorised Super Fund. Late or missing remittances to Nasfund or Nambawan Super attract penalties and expose the employer to member complaints and Bank of PNG scrutiny.
Training levy miscalculation
The 2% training levy applies once annual taxable payroll exceeds K200,000. Failing to lodge Form TL1 or over-claiming the training-expenditure offset creates an unrecorded liability recoverable on audit – and the levy itself is not tax-deductible.
Non-citizen SWT mis-rating
Non-residents have no tax-free threshold and pay 22% on the first K20,000 (reinstated 1 January 2026). Treating a non-citizen as a resident under-withholds SWT; treating a resident as non-resident over-withholds. Both trigger reassessment and employee disputes.
The three types of providers who struggle with Papua New Guinea
Global Aggregator Platforms
Platforms like Deel, Remote, and Rippling operate through a partner network in PNG – they don’t own the entity, don’t directly manage SWT remittance, and don’t control the compliance relationship. When regulations change, the instruction travels: platform → partner → your payroll. Each handoff introduces delay and interpretation risk.
- ×No direct IRC relationship – third-party intermediary handles SWT filings
- ×Superannuation remittance to Nasfund / Nambawan partner-dependent
- ×Fortnightly SWT table logic and dependant rebates often unsupported
- ×Regulatory updates filtered through partner SLAs, not live
Large Global Payroll Incumbents
ADP, Ceridian, and similar incumbents have PNG coverage – in name. In practice, their Pacific coverage is often delivered through regional partners or legacy systems that weren’t built for PNG’s fortnightly SWT tables, resident/non-resident split, or the Income Tax Act 2025 benefit-valuation changes.
- ×Fortnightly SWT assessment hardcoded – not dynamically updated
- ×Resident vs non-resident 22% band handled manually
- ×Training levy offset tracking absent
- ×Long implementation timelines – PNG not a core market
Local PNG Firms
Local PNG accounting and bookkeeping 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 APAC consolidation – cannot report across PNG + other Pacific entities
The only provider that closes every gap
Mercans is the only PNG payroll provider that combines a proprietary payroll technology stack, full-time in-country compliance teams, direct IRC and Authorised Super Fund relationships, and enterprise-grade data security – simultaneously, on one contract, with no intermediaries.
The only engine built for PNG’s actual payroll architecture
G2N Nova™ is the world’s only API-first gross-to-net payroll engine. It natively models PNG’s fortnightly Salary & Wages Tax tables, applies resident and non-resident rating, tracks dependant-declaration rebates, splits 8.4% employer and 6% employee superannuation, and auto-computes the training levy with its expenditure offset. This isn’t configuration. It’s engineering.
Full-time PNG team – not a partner you phone when things break
Mercans employs full-time payroll and compliance professionals for PNG. They maintain active relationships with the Internal Revenue Commission, the Authorised Super Funds, and the Bank of PNG – not through a contact directory, but through ongoing regulatory engagement. When the IRC updates a fortnightly tax table, when a super fund changes its schedule format, when the training levy rules shift – we know before it reaches your inbox.
The security posture multinationals require – wherever they run payroll
PNG’s Digital Government Act 2022 and evolving data-handling expectations require payroll processors of employee personal data to maintain documented privacy controls and secure data frameworks. Mercans holds BCR approval, ISO 27701 certification, SOC 1 & 2 certifications, and ISO 27017/27018 – a complete certification stack few payroll providers in the Pacific can match. Zero security breaches since inception.
Where Mercans wins on every PNG-specific capability
Each row is a PNG-specific capability. Each cell shows native coverage as a fill bar – full = native in-platform, half = partial / manual workaround, empty = gap.
PNG Capability Coverage · 10 dimensions
annual ÷ 26 basis
max K1,050 / year
Every rate. Every cap. Every obligation.
PNG 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.
Papua New Guinea · Rate & Compliance Dashboard
Live 2025–26Superannuation Is a Two-Sided Contribution
Employers of 15 or more must contribute 8.4% and citizen employees at least 6%, both on gross basic salary, remitted to an Authorised Super Fund (Nasfund or Nambawan Super). Contributions are compulsory for citizens and voluntary for non-citizens. G2N Nova™ tracks the threshold, base, and both sides – not a blended rate.
→ Dual super logic in G2N Nova™SWT Is a Fortnightly Table – Not a Flat Rate
Salary & Wages Tax is assessed fortnightly on annual thresholds divided by 26. Residents get a K769.23/fortnight tax-free amount then 30/35/40/42% bands; non-residents start at 22% with no threshold. Dependant declarations reduce the withholding. Mercans applies the live IRC table, not a hardcoded rate.
→ Fortnightly SWT tables · resident + non-residentTraining Levy Rewards Citizen Development
Once taxable payroll exceeds K200,000, a 2% training levy applies – but qualifying training spend on citizen employees is credited against it, potentially to nil. The levy is lodged on Form TL1 and is not tax-deductible. Tracking both the liability and the offset is essential to avoid over- or under-paying.
→ Levy + training-offset tracking in G2N Nova™No Social Security Beyond Superannuation
PNG has no national social security or health insurance scheme – superannuation is the only mandatory statutory contribution. That places the full weight of retirement provision and payroll compliance on correct SWT withholding and super remittance, with directors personally liable for SWT.
→ Super is the statutory system · SWT is the exposureRun a PNG payroll. Right here, right now.
Switch worker type. Move the slider. Every number you see is the same calculation G2N Nova™ runs in production – fortnightly SWT tables, resident/non-resident rating, dual superannuation, and true cost of employment exposed live.
PNG Salary & Wages Tax Calculator · Live
G2N Nova™ engineEight things only PNG experts know to handle
These are the compliance details that don’t appear in standard payroll setup guides – but appear in every IRC audit, super-fund reconciliation, and labour dispute we’ve encountered across the Pacific.
The 15-Employee Threshold Triggers Mandatory Super
Superannuation becomes compulsory once an employer has 15 or more employees. Employer contributes 8.4% and the citizen employee at least 6%, remitted to an Authorised Super Fund such as Nasfund or Nambawan Super. Membership is compulsory for citizens employed more than 59 days in any three-month period.
Salary & Wages Tax Is Assessed Fortnightly
SWT is calculated on a fortnightly basis (annual thresholds ÷ 26), regardless of the actual pay frequency. The tax-free threshold is K20,000/year = K769.23/fortnight, then 30/35/40/42% marginal bands for residents. Using monthly or annual logic produces the wrong withholding.
Dependant Declarations Reduce Fortnightly Withholding
Employees lodge a declaration form on hire or change of circumstances. Rebates run 15% of gross tax for the first dependant (max K450/yr) and 10% each for the second and third (max K300/yr each), capped at K1,050/year for up to three dependants. Missing declarations over-withhold SWT.
Non-Citizens Are Rated Differently on Both Sides
Non-residents have no tax-free threshold and pay 22% on the first K20,000 (reinstated 1 January 2026), then the same upper bands. Superannuation is voluntary for non-citizens rather than compulsory. Getting the residency rating wrong mis-states both SWT and super.
The Training Levy Is Offset by Citizen Training Spend
Employers with taxable payroll above K200,000 owe a 2% training levy – but qualifying training expenditure on citizen employees is creditable against it. Spend at least 2% of payroll on citizen training and no levy is payable. Lodged on Form TL1; the levy itself is not tax-deductible.
Income Tax Act 2025 Changed Benefit Valuations
The Income Tax Act 2025, effective 1 January 2026, revised how non-cash benefits – housing, motor vehicle, and salary-packaging items – are valued and taxed through SWT. Legacy benefit tables understate taxable value and under-withhold SWT on packaged remuneration.
Super Applies to Gross Basic, Not Total Pay
The 8.4% / 6% superannuation contributions are calculated on gross basic salary – overtime, bonuses, and commissions are excluded from the contribution base. Applying super to total earnings over-contributes; applying it to net understates the member’s entitlement.
SWT Is Due by the 7th – Directors Are Liable
SWT withheld each month must be remitted to the IRC by the 7th day of the following month, with an annual reconciliation due 31 March. Company directors are personally liable for unremitted SWT, and non-compliance attracts 20% penalty interest per annum.
One workforce. Two entirely different compliance tracks.
Citizen employees on compulsory superannuation and resident SWT vs. non-citizen and expatriate staff on voluntary super and non-resident SWT requires two distinct compliance frameworks, two contribution treatments, and two withholding tables. Mercans runs both simultaneously on every pay cycle.
Parallel Compliance Engines
Superannuation is compulsory once the employer has 15+ staff. Employer 8.4% and employee 6% minimum on gross basic salary, remitted to an Authorised Super Fund (Nasfund or Nambawan Super). Compulsory for citizens employed more than 59 days in any three-month period.
Resident SWT with the K20,000 tax-free threshold. Fortnightly bands of 0/30/35/40/42% apply above K769.23/fortnight. Dependant declarations reduce the withholding by up to K1,050/year for three dependants.
Super base is gross basic, not total pay. Overtime, bonuses, and commissions are excluded from the contribution base – a distinction most generic engines miss when they apply super to gross earnings.
SWT remitted to the IRC by the 7th of the following month. Directors are personally liable for unremitted SWT, with a 20% per-annum penalty. Annual reconciliation is due 31 March.
Non-resident SWT starts at 22% with no tax-free threshold. The 22% first band was reinstated effective 1 January 2026, then the same 30/35/40/42% upper bands apply. Mis-rating a non-citizen as resident under-withholds SWT.
Superannuation is voluntary, not compulsory. Non-citizens may contribute to an Authorised Super Fund by election, but the 15-employee mandatory rule applies to citizen employees. Payroll must not auto-enrol non-citizens.
Work permits and visas are a parallel obligation. Expatriate hires require valid work permits and entry visas maintained throughout employment; all SWT obligations apply identically once employed in PNG.
Residency status can change mid-year. A non-resident who meets the residency test becomes taxable on the resident scale, and the tax-free threshold applies. The withholding table must switch when status changes.
Every obligation. Every authority. Mercans owns the calendar.
PNG compliance runs across the Internal Revenue Commission, the Authorised Super Funds, and the Department of Labour on monthly, annual, and event-triggered cadences. Mercans’ managed payroll absorbs every filing as standard scope – you don’t track deadlines. We do.
SWT Remittance to IRC
Salary & Wages Tax withheld from all employees on the fortnightly tables is remitted to the Internal Revenue Commission by the 7th of the following month. Directors are personally liable; late remittance attracts 20% per-annum penalty interest.
Superannuation Contribution Schedule
Employer 8.4% and employee 6% contributions on gross basic salary are remitted to the Authorised Super Fund (Nasfund or Nambawan Super) with a member-level schedule. Compulsory for employers with 15 or more staff.
New Hire – Super & Declaration
On hire, citizen employees are enrolled with the Authorised Super Fund and lodge a dependant declaration form that sets their fortnightly SWT rebate. Residency status is confirmed to select the resident or non-resident table.
SWT Annual Reconciliation
Annual reconciliation of Salary & Wages Tax withheld against the monthly remittances, due 31 March following the tax year. Discrepancies against the IRC records trigger reassessment and penalty interest.
Training Levy – Form TL1
Employers with taxable payroll above K200,000 lodge Form TL1 for the 2% training levy, net of the qualifying citizen-training expenditure offset. The levy is not tax-deductible where payable.
Final SWT & Super Settlement
Termination triggers final SWT withholding on the last pay, settlement of accrued entitlements, and closure of the super contribution schedule with the Authorised Super Fund. Correct residency rating applies to the final withholding.
Dependant Declaration Tracking
Dependant declarations reduce fortnightly SWT by up to K1,050/year for three dependants. Declarations must be captured on hire and updated on change of circumstances; stale declarations over- or under-withhold SWT.
Corporate Income Tax Return
Resident companies file an annual income tax return at the 30% corporate rate, reconciled with provisional tax instalments. Non-resident permanent establishments face additional dividend/remittance withholding.
PNG is one market. Mercans covers the Pacific and APAC.
For companies running payroll across multiple Pacific and APAC states, complexity multiplies – not adds. Each country runs its own revenue authority, superannuation regime, and wage mandate. Mercans covers the major markets on a single platform with country-specific compliance engines running in parallel.
covered
1 contract
consolidation
APAC
Every filing. Every format. Submission-ready.
Mercans generates the exact file types that the Internal Revenue Commission, the Authorised Super Funds, and the Department of Labour expect to receive – not formatted summaries that need reformatting before you can submit them.
