Calculate Inland Revenue (IRD) Extra Pay withholding tax on redundancy, severance, bonuses, and leave cash-outs using the 4-week annualized formula and ACC levy exemptions.
After all statutory deductions
$78,101 – $180,000 (33%)
Exempt on redundancy under law
-$9,900 total withheld
Payment category, lump sum gross, and preceding 4 weeks pay.
Marginal extra pay tax and net remittance.
\text{Annualized Base Earnings} = \text{Gross Pay in Past 4 Weeks} \times 13 \\
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\text{Threshold Income} = \text{Annualized Base} + \text{Gross Lump Sum} \\
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\text{Extra Pay Rate} = \begin{cases} 10.5\%, & \le \$15,600 \\ 17.5\%, & \$15,601 - \$53,500 \\ 30.0\%, & \$53,501 - \$78,100 \\ 33.0\%, & \$78,101 - \$180,000 \\ 39.0\%, & > \$180,000 \end{cases} \\
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\text{ACC Levy (1.60\%)} = \begin{cases} \$0 \text{ (Exempt)}, & \text{if Redundancy / Severance} \\ 1.60\%, & \text{if Bonus or Leave Cash-Out} \end{cases}Under NZ Inland Revenue rules, lump sum payments such as redundancy compensation, bonuses, and accrued leave cash-outs are taxed as 'Extra Pay'. Unlike Australia or the UK, NZ has no tax-free redundancy allowance. Withholding rates are determined by annualizing the last 4 weeks of gross pay (×13) plus the lump sum. Crucially, statutory redundancy payments are legally EXEMPT from the 1.60% ACC Earner's Levy under the ACC Act.
All calculations, amortizations, and scenario projections displayed on this page are strictly for informational and educational purposes. Nothing herein constitutes investment, financial, tax, or legal advice. Actual Reserve Bank of New Zealand (RBNZ) interest rates, IRD PAYE brackets, ACC Earner's Levy, KiwiSaver regulations, and lender criteria may vary. Calconova explicitly disclaims all liability for any decisions taken based upon these calculations. Consult a qualified financial advisor, CPA, or official Inland Revenue documentation prior to executing financial commitments.
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