Tax-Equivalent Yield: The Key to Smarter Investment Returns in 2025

In Australia, chasing a high investment yield is only half the story. The tax you pay on that income can dramatically reshape your true returns. Enter the concept of tax-equivalent yield—a powerful tool for seeing past headline figures and measuring what really lands in your pocket.

Understanding Tax-Equivalent Yield: Why It Matters in 2025

Not all investment income is taxed the same. With the ATO’s ongoing adjustments to marginal rates and the 2025 tweaks to franking credit rules, comparing a fully taxable term deposit to a franked dividend or a tax-free government bond has never been more complex—or more important. Tax-equivalent yield brings all income investments onto a level playing field by translating their after-tax returns into a common, pre-tax figure.

• Term deposits and savings accounts: Interest is fully taxable at your marginal rate.
• Australian shares: Dividends may be franked, offering tax credits.
• Government bonds: Some are tax-free or concessionally taxed for certain investors.

This means a 5% yield from a term deposit is not the same as a 5% yield from franked dividends or government bonds. Tax-equivalent yield helps you see which investment really pays more after the taxman takes his share.

How to Calculate Tax-Equivalent Yield: A 2025 Example

Let’s say you’re considering two investments in 2025:

• Term deposit: 5.0% p.a., fully taxable
• Franked share dividend: 4.2% p.a. with 100% franking

Assume you’re in the 37% marginal tax bracket. Here’s how the maths works:

1. Calculate after-tax yield for the term deposit:
   After-tax yield = 5.0% × (1 – 0.37) = 3.15%
2. Calculate after-tax yield for the franked dividend:
   Grossed-up dividend = 4.2% / (1 – 0.30) = 6.0% (since company tax is 30%)
   After-tax yield = Grossed-up dividend × (1 – marginal tax rate) + franking credit
   After-tax yield = 6.0% × (1 – 0.37) + 1.8% (franking credit) = 3.78% + 1.8% = 5.58%
3. Tax-equivalent yield for the franked dividend:
   Convert the after-tax yield back to a pre-tax equivalent:
   Tax-equivalent yield = After-tax yield / (1 – marginal tax rate)
   Tax-equivalent yield = 5.58% / (1 – 0.37) ≈ 8.86%

Result: The term deposit offers a tax-equivalent yield of 5.0%, while the franked dividend’s tax-equivalent yield is a whopping 8.86%. Despite the lower headline rate, the franked dividend is far superior after tax.

When and How to Use Tax-Equivalent Yield in Your 2025 Portfolio

With the Albanese government reaffirming the progressive tax system and maintaining franking credits for now, investors in higher tax brackets should pay close attention to tax-equivalent yields. Here’s when it’s especially useful:

• Comparing income investments: Weighing bonds, term deposits, and shares with different tax treatments.
• Retirement planning: Understanding how much income you’ll actually keep, especially as superannuation rules evolve in 2025.
• Responding to tax changes: Policy updates, like the 2025 Stage 3 tax cuts or franking credit adjustments, can shift the balance in favour of different asset classes.

As more Australians chase higher yields in a low-interest world, overlooking tax-equivalent yield means risking disappointment come tax time.

Tax Policy Watch: 2025 Updates Affecting Yields

Some key policy changes in 2025 are reshaping the tax landscape for investors:

• Stage 3 tax cuts: Set to increase after-tax yields for many middle-income earners, narrowing the gap between taxable and franked income.
• Franking credit scrutiny: While major changes were avoided in 2024, the government continues to review imputation and may target excess refunds in future budgets.
• Green bonds and social impact investments: The government’s new incentives for green bonds may include concessional tax rates, making tax-equivalent yield analysis essential for comparing these to traditional options.

Staying informed about these changes will help you accurately compare investments on a tax-adjusted basis and avoid costly surprises.

Conclusion

Tax-equivalent yield is your secret weapon for comparing investments in Australia’s ever-changing tax environment. Don’t be blinded by headline yields—run the numbers, factor in your tax bracket, and use this metric to make truly informed decisions about where to put your money in 2025 and beyond.