NZ Student Loan Repayment Calculator
Calculate your New Zealand student loan compulsory repayments, see how long until you are debt-free, and explore how voluntary extra payments can speed things up. Uses IRD 2025-26 rates: 12% on income above the $24,128 threshold for NZ-based borrowers, or fixed obligations for overseas borrowers. Interest-free if you live in NZ — 2.4% if overseas. All calculations run privately in your browser.
How NZ Student Loan Repayments Work
In New Zealand, student loan repayments are collected automatically through the PAYE system. If you are employed and earn above the repayment threshold of $24,128 per year (for the 2025-26 tax year), your employer deducts 12 cents for every dollar you earn above that threshold. This deduction appears on your payslip alongside income tax, ACC levy, and KiwiSaver contributions.
The repayment threshold is set annually by Inland Revenue and applies to your total gross income from all sources including salary, wages, and secondary employment. If you are self-employed, you make repayments through your end-of-year tax return instead of PAYE. Your employer uses the tax code "SL" to identify that student loan deductions should be made from your pay.
For example, on a $65,000 salary the compulsory annual repayment would be ($65,000 - $24,128) x 12% = $4,904.64 per year, or roughly $408.72 per month. This is deducted automatically — you do not need to arrange payments yourself.
Interest-Free Student Loans: NZ vs Overseas Borrowers
One of the most significant benefits of the New Zealand student loan scheme is that loans are interest-free for borrowers who remain in New Zealand. This policy, introduced on 1 April 2006, means your loan balance stays the same regardless of how long it takes to repay — every dollar you repay goes directly toward reducing the principal.
However, if you move overseas for more than six months, you are reclassified as an overseas-based borrower. Interest begins accruing at 2.4% per year (2025-26 rate), and instead of income-based repayments, you must meet fixed annual obligations set by IRD based on your loan balance. A $30,000 loan overseas would accrue $720 in interest per year, meaning a larger portion of your repayments covers interest rather than reducing the balance.
If you plan to go overseas temporarily, you can apply for a temporary repayment holiday of up to one year. Returning to New Zealand for at least 183 days in a tax year restores your interest-free status and returns you to the income-based repayment system.
Strategies to Repay Your Student Loan Faster
Even though NZ student loans are interest-free domestically, many borrowers want to clear the debt sooner for peace of mind. Voluntary repayments can be made anytime through your myIR account or by direct payment to IRD. There is no penalty for overpaying, and every extra dollar goes straight to reducing your balance.
Key strategies include: setting up automatic weekly transfers to IRD (even $20/week adds over $1,000/year to repayments), directing any pay rises or bonuses toward a lump-sum payment, and checking your myIR balance regularly to stay motivated. If you receive a tax refund from IRD, you can request it be applied to your student loan instead.
For overseas borrowers, paying more than the minimum obligation is especially important because it reduces the balance that accrues interest. Clearing the loan before compound interest inflates the total cost should be a priority for anyone living abroad long-term.
Student Loan and KiwiSaver: What to Prioritise
A common question for NZ graduates is whether to focus on student loan repayments or KiwiSaver contributions. Since student loans are interest-free for NZ residents, the mathematical answer is clear: KiwiSaver first. Contributing at least 3% to KiwiSaver unlocks the 3% employer match (essentially free money) plus the government contribution of up to $521.43 per year. Those returns far exceed the 0% cost of carrying a student loan.
The exception is overseas borrowers paying 2.4% interest. If your KiwiSaver fund consistently returns more than 2.4% after fees (which most growth funds do over the long term), KiwiSaver may still win. However, the guaranteed 2.4% saving from paying off debt is risk-free, while investment returns are not.
Ultimately, maintaining at least the minimum 3% KiwiSaver contribution while making compulsory student loan repayments is the baseline. Any surplus cash can then be directed to voluntary loan repayments or increased KiwiSaver contributions depending on your goals, risk tolerance, and whether you are NZ-based or overseas.