Saving up for a first home deposit, a dream holiday, or just building up a solid emergency fund? Trying to map out your savings in New Zealand can get a bit tricky once you start factoring in taxes. Should you stick to a standard savings account paying Resident Withholding Tax (RWT), or is it better to funnel your cash into a Portfolio Investment Entity (PIE) fund using your Prescribed Investor Rate (PIR)?
Let’s take the guesswork out of your planning. Just punch in your numbers below to see exactly when you’ll hit your target!
NZ Dual Savings Goal Calculator
Your Combined Financial Summary
How to Use This Calculator
Figuring out the fastest route to your savings goal doesn’t require a finance degree. Here is a quick guide on how to get the most accurate results from the calculator above:
- Set Your Target: Enter the total amount you want to save at the very top.
- Standard Savings Account (RWT): This is your typical bank savings account. Enter your current balance, how much you plan to deposit each month, the bank’s interest rate, and your RWT rate (usually based on your income bracket).
- PIE Fund Investment (PIR): PIE funds are taxed differently, often capping out at a maximum of 28%. Enter your details here to see if the tax advantage speeds up your timeline.
- Review Your Summary: The tool will instantly crunch the numbers, showing you your combined total, the total interest you’ll earn after tax, and the exact timeframe needed to hit your goal.
Tip: Want to save your results or share them with a partner? Hit the “Copy Summary to Clipboard” button at the bottom of the calculator!
Supercharge Your Savings Journey
Reaching a financial goal requires a mix of good habits and the right tools. If you’re looking at your current monthly deposits and wishing they were a bit higher, it might be time to review your cash flow. Take a few minutes to run your income and expenses through our Budget Planner Calculator to find hidden savings you can redirect into your goals.
On the flip side, if you already have a lump sum of cash and you are absolutely certain you won’t need to touch it for a while, a PIE fund or on-call account might not be your only option. You can often score higher fixed interest rates by locking it away. Run your numbers through our Term Deposit Calculator to see if a fixed-term strategy better suits your timeline.
Frequently Asked Questions (FAQs)
What is the difference between RWT and PIR? RWT (Resident Withholding Tax) is the tax deducted from the interest you earn on standard bank accounts. PIR (Prescribed Investor Rate) is the tax rate applied to earnings from a PIE (Portfolio Investment Entity) fund. Because the top PIR is capped at 28%—compared to the top RWT rates of 33% or 39%—higher earners can often save on tax by using PIE funds.
Should I split my savings between two accounts? Many Kiwis choose to split their savings. They keep some cash in a standard on-call account for immediate emergencies, while putting the bulk of their savings into a PIE fund or term deposit to maximize after-tax returns. This calculator helps you see the combined power of both accounts working together.
Are the interest rates guaranteed? No. Unless you are using a fixed term deposit, interest rates on standard savings accounts and PIE call funds are floating, meaning the bank can raise or lower them based on the Official Cash Rate (OCR) and market conditions. It’s a good idea to revisit this calculator every few months to adjust your rates.
Disclaimer: This calculator is provided for educational and illustrative purposes only. It assumes that interest rates, tax rates, and your monthly deposits remain constant over time, and it does not account for account keeping fees or inflation. Always consider speaking with a professional financial advisor before making major financial decisions.