When an Australian company pays you a dividend from profits it already paid 30% tax on, the tax system takes the view that taxing you again in full would be double-dipping. So the dividend arrives with a franking credit attached — a voucher for the company tax already paid — and your personal tax is assessed on the pre-tax amount, with the voucher counting toward your bill.
Uniquely, Australia pays out unused vouchers in cash. That single design choice — full refundability, introduced in 2000 — is why franking dominates Australian retiree portfolios, why the big banks and miners are held so heavily by income investors, and why the mechanism periodically becomes a federal election battleground.
The mechanics: gross-up and credit
A company earns $1,000 of profit, pays $300 company tax (30%), and pays you the remaining $700 as a fully franked dividend with a $300 franking credit attached.
At tax time, you don't declare $700. You declare the grossed-up $1,000 (dividend plus credit), calculate tax at your marginal rate, and then apply the $300 credit against the result:
| Your marginal rate | Tax on $1,000 | Less credit | Net outcome | $700 dividend is worth |
|---|---|---|---|---|
| 0% (pension-phase super, low income) | $0 | $300 | $300 refund | $1,000 |
| 15% (accumulation super) | $150 | $300 | $150 refund | $850 |
| 32% ($45k–$135k earner) | $320 | $300 | $20 payable | $680 |
| 39% ($135k–$190k) | $390 | $300 | $90 payable | $610 |
| 47% ($190k+) | $470 | $300 | $170 payable | $530 |
Read the last column carefully: the same dividend cheque is worth nearly twice as much to a retiree in pension phase as to a top-bracket earner. The franking system doesn't just soften double taxation — it makes the after-tax value of every franked dividend a function of who holds the share. Run your own holdings through the franking credits calculator to see your net position.
Why the refundability matters so much
In most countries with imputation-style systems, unused credits simply reduce tax to zero and stop. Australia writes a cheque. A self-funded retiree in pension phase paying 0% tax on a portfolio yielding $40,000 of fully franked dividends receives roughly $17,000 of franking refunds on top — turning a 4% yield into an effective 5.7%. Entire retirement income strategies, and a meaningful slice of SMSF asset allocation, are built on this arithmetic.
It also explains the political heat: the cash-refund component costs the budget billions annually and flows overwhelmingly to zero-tax entities. The 2019 election was fought partly on abolishing refundability; the proposal lost, and refunds remain — but anyone building a decades-long strategy on them should price in some policy risk.
The details that catch people
Partially franked and unfranked dividends. Companies can only attach credits for tax actually paid. Firms with offshore earnings (CSL) or accumulated losses often frank at less than 100%; REITs and many tech companies pay unfranked distributions. A "6% yield" that's unfranked is worth less after tax than a 5% fully franked one to most holders — always compare grossed-up yields. The dividend income calculator does this conversion.
The 45-day rule. To claim credits above $5,000 in a year, you must hold the shares "at risk" for at least 45 days around the dividend date. This exists precisely to stop dividend-stripping — buying just before a dividend, harvesting the credit, selling immediately.
The 30% rate isn't universal. Companies under the $50 million turnover threshold pay 25% and frank at 25% — small-cap dividends carry proportionally smaller credits.
Credits are income for other tests. The grossed-up amount counts toward income definitions used for the Medicare levy surcharge, Division 293, and family payment tapers. A big franked portfolio can push you over thresholds even though the credits come back at assessment.
The portfolio question
Franking is a genuine after-tax return enhancer, but it has a gravitational pull worth resisting: chasing it concentrates portfolios into a handful of mature, high-payout Australian companies — banks, miners, Telstra — and away from global equities and growth. The credit is worth 30% of the company tax; a decade of underperformance against global markets costs more. The sensible frame: franking is a tiebreaker and a retiree's yield-booster, not a reason to hold 80% of your wealth in one small country's bank oligopoly.
For accumulators, franked dividends inside super (taxed at 15%, credits refundable against it) are quietly efficient; for pension-phase retirees they are close to unbeatable; for top-bracket earners holding shares personally, growth assets that defer tax often beat income assets that realise it annually — compare outcomes at your own bracket with the calculator.
Assumes the 30% company rate for large companies and 2026–27 resident marginal rates including Medicare levy. General information, not investment or tax advice.