Term Deposit Tax Calculator NZ 2026–27
Estimate RWT and net term-deposit interest at a selected rate.
Source check 10 October 2026 · General information, not tax advice
Calculate your result
Tax year 2026–27 · New Zealand dollars · results update automatically
Results update automatically
Term Deposit Tax Calculator
- Gross interest
- $5,000.00
- RWT rate
- 33%
- RWT withheld
- $1,650.00
- Net interest
- $3,350.00
- The selected RWT rate is user-confirmed; final income tax may reconcile differently.
How this calculator works
Estimate RWT and net term-deposit interest at a selected rate.
Formula
Net interest = gross interest − resident withholding tax.
Worked example
The tool does not forecast interest or choose an RWT rate for you.
Scope and edge cases
Eligibility, tax codes, certificates, multiple income sources and annual reconciliation can change the final outcome. Missing components are disclosed instead of silently becoming zero.
Frequently asked questions
Is this term deposit tax calculator exact?
The result card says whether the calculation is exact for its supported scope, indicative, missing inputs or unsupported. It never promotes an incomplete rule set as exact.
Does Taxliva store my salary?
No account is required and the interactive calculation runs in your browser.
Which tax year is used?
It uses the New Zealand tax year from 1 April 2026 to 31 March 2027.
Official sources
- Using the right resident withholding tax rate — Inland Revenue
Rule review
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