Term Deposit Calculator Australia

Calculate term deposit returns with compound interest. See maturity value, total interest earned, and after-tax returns with RWT.

01INPUTS

The amount you deposit into the term deposit

The advertised annual interest rate

How long your money is locked in

How often interest is compounded. More frequent = higher return.

02RESULTS
Maturity Value$10,500.00
Summary
Principal$10,000.00
Total Interest$500.00
Effective Annual Rate5%
How this works:Term deposit interest is assessable income and taxed at your marginal rate. RWT withheld is credited against your tax liability when you lodge your return.
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Tax Accuracy & Sources

Reviewed: March 2026 · Tax year: 2025-26

This calculator is an estimate tool and may not cover all personal circumstances. For state-based taxes, confirm details with your state or territory revenue office.

What is RWT on term deposits?
Resident Withholding Tax (RWT) is deducted from interest earned if you haven't provided your Tax File Number (TFN) to the bank. The default rate for non-disclosed TFN is 47%, but most people who provide their TFN pay the standard 10.5% RWT rate on interest income.
How is term deposit interest taxed?
Term deposit interest is assessable income and taxed at your marginal tax rate. The interest is declared in your tax return. RWT withheld is credited against your tax liability.
What compounding frequency gives the best return?
More frequent compounding (monthly) produces higher returns than less frequent (annually or at maturity) because interest earns interest on interest sooner.

Last updated 24 May 2026 Tax year 2025-26

Data sources: ATO (ato.gov.au), Services Australia

This tool is general information only, not financial advice.

Reviewed by AusTax Tools Editorial Desk

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