What You Need to Know About Papua New Guinea Payroll Tax

Superannuation in Papua New Guinea adds 14.4% on top of every employee's base salary -- 8.4% from you as the employer and 6% from the employee -- split between Nasfund and Nambawan Super depending on sector. Combine that with progressive Salary and Wages Tax that tops out at 42%, and your payroll calculations need to be precise. This post covers both obligations step by step.

1. What is Payroll Tax?

Payroll tax in Papua New Guinea covers the mandatory deductions and contributions employers must handle when paying employees. The main components are:

Salary and Wages Tax (SWT): Income tax withheld from employee salaries based on PNG's progressive tax rates. This is the PAYE equivalent in PNG.
Superannuation: A compulsory retirement savings scheme. Employers contribute a minimum of 8.4% and employees contribute a minimum of 6% of the employee's base salary, for a total of 14.4%.

The two main superannuation funds in PNG are Nasfund (for private sector employees) and Nambawan Super (for public servants).

2. Who does it apply to?

This usually applies to:

All employers in Papua New Guinea
Employers with 15 or more full-time employees (superannuation is mandatory)
Citizens of PNG employed in the country (superannuation)
All employees earning wages or salary (SWT)
Non-resident employees working in PNG (taxed at different rates)

3. Why does it matter?

Understanding payroll tax helps you:

Stay compliant with tax laws
Avoid penalties and late fees
Keep proper records
File and pay correctly
Plan your cash flow better

4. How does it work?

Here's the basic process:

Register as an employer with the IRC for salary and wages tax
Register with Nasfund or Nambawan Super for superannuation
Calculate each employee's gross wages for the pay period
Determine the salary and wages tax (SWT) based on the employee's income and tax bracket
Deduct the employee's superannuation contribution (6%) from their base salary
Calculate the employer's superannuation contribution (8.4%) on the same base salary
Remit SWT to the IRC by the 7th of the following month
Remit superannuation contributions to the fund by the 14th of the following month
File monthly SWT returns (Form S1 or S1-L) with the IRC

5. What forms are involved?

Form S1 (Salary and Wages Tax Return) - Monthly return for employers with mainly citizen employees
Form S1-L (Salary and Wages Tax Return) - Monthly return for employers with non-citizen employees on contracts
Form S2 (Annual Salary and Wages Tax Reconciliation) - Year-end summary of all SWT deductions
Superannuation Contribution Schedule - Monthly schedule listing employee contributions
Form S3 (Employee Separation Certificate) - Issued when an employee leaves

6. What information do you need?

Before handling payroll tax, make sure you have:

IRC employer registration number
Superannuation fund employer number (Nasfund or Nambawan Super)
Employee TIN (Taxpayer Identification Number)
Employee superannuation membership numbers
Base salary and gross wage details per employee
Records of allowances, overtime, and bonuses
Tax bracket information for each employee
Bank account details for remittance

7. Important deadlines

SWT remittance: By the 7th of the month following the pay period
Form S1/S1-L (monthly SWT return): Filed monthly with SWT payment
Superannuation contributions: By the 14th of the month following the pay period
Form S2 (annual reconciliation): By 28 February of the following year
Year-end requirements: Reconcile all SWT deductions with Form S2, issue employee separation certificates as needed, verify superannuation records

8. Common mistakes to avoid

Missing the 7th of the month deadline for SWT remittance
Calculating superannuation on gross wages instead of base salary
Not registering for superannuation when your workforce reaches 15 employees
Applying the wrong SWT rates for non-resident employees
Not issuing Form S3 when an employee leaves
Failing to reconcile SWT at year-end with Form S2
Not remitting superannuation to the correct fund (Nasfund vs Nambawan Super)

9. Simple example

You employ a PNG citizen in Port Moresby earning PGK 1,500 per fortnight (base salary).

Superannuation Calculation (per fortnight):

Employee contribution: PGK 1,500 x 6% = PGK 90
Employer contribution: PGK 1,500 x 8.4% = PGK 126
Total superannuation: PGK 216

SWT Calculation (simplified, per fortnight):

Fortnightly salary: PGK 1,500
Annual equivalent: PGK 39,000
SWT on this amount (using progressive rates): approximately PGK 145 per fortnight

Employee take-home pay (per fortnight):

Gross: PGK 1,500
Less superannuation (6%): PGK 90
Less SWT: PGK 145
Take-home: approximately PGK 1,265

Total employer cost (per fortnight):

Salary: PGK 1,500
Employer superannuation (8.4%): PGK 126
Total: PGK 1,626

10. FAQ

Q: Is superannuation mandatory for all employers? A: Superannuation is mandatory for employers with 15 or more full-time employees who are PNG citizens. Smaller employers can register voluntarily.

Q: What are the SWT rates in PNG? A: PNG uses progressive tax rates for residents. The first PGK 12,500 of annual income is tax-free. Rates range from 22% to 42% for higher income brackets. Non-residents pay a flat 22% on the first PGK 250,000.

Q: Which superannuation fund should I use? A: Private sector employers typically use Nasfund. Public servants use Nambawan Super. Employees can also choose an authorized fund.

Q: What happens if I pay SWT late? A: The IRC charges penalties and interest on late SWT payments. The longer the delay, the higher the penalty.

Q: Do I need to withhold SWT for contract workers? A: It depends on the nature of the arrangement. If the worker is an employee (not an independent contractor), SWT must be withheld.

11. Final takeaway

Papua New Guinea's payroll system requires timely SWT remittance by the 7th and superannuation contributions by the 14th of each month, so a consistent payroll calendar keeps your business compliant with the IRC.

Caption

What you need to know about Papua New Guinea Payroll Tax: Understand SWT withholding and superannuation contributions (8.4% employer, 6% employee) to run payroll correctly in PNG.

Sign-up CTA

Want to simplify your tax compliance? Sign up for HeadOffice FREE and manage your business taxes with confidence.