Every self-managed super fund holds money in one of two states: accumulation or retirement phase. The distinction sounds administrative, but it drives one of the biggest tax differences in Australian superannuation. Money in accumulation is taxed each year on its earnings. Money supporting a retirement-phase pension is, in most cases, taxed at nothing at all. For SMSF trustees weighing when and how to move a balance from building Wealth to drawing an income, understanding that gap is foundational. It shapes how a fund reports income, how capital gains are treated, and how much of an Investment return actually stays inside the fund. This explainer walks through the core tax difference between an SMSF accumulation account and an SMSF pension in plain terms.

 

What the two phases actually are

An accumulation account is the default. While a member is building their super — receiving contributions, reinvesting returns, growing the balance — the money sits in accumulation. There is no requirement to draw anything out.

A retirement-phase account, most commonly an account-based pension, begins once a member has met a condition of release and chooses to convert some or all of their balance into a regular income stream. From that point the fund is paying the member a pension rather than simply holding assets, and the tax treatment of the Assets backing that pension changes.

A member can hold both at once. It is common for an SMSF member to run a pension from part of their balance while leaving the rest in accumulation.

 

How accumulation Earnings are taxed

In accumulation phase, a complying SMSF pays 15% tax on its investment earnings — interest, rent, dividends and other income.

Capital gains receive a concession. Where the fund has held an asset for more than 12 months, only two-thirds of the gain is taxable after a one-third (33.3%) CGT discount. Applying the 15% rate to the discounted gain produces an effective 10% tax on the long-term capital gain. Assets sold within 12 months get no discount and the full gain is taxed at 15%.

Franking credits attached to fully franked dividends can be used to offset the fund’s tax, and excess franking credits are refundable.

 

How retirement-phase earnings are taxed

Once assets support a retirement-phase income stream, the earnings on those assets become Exempt Current Pension Income (ECPI) and are taxed at 0%. That covers both ordinary income and capital gains on the pension assets. A long-term Capital Gain that would attract effective 10% tax in accumulation is generally tax-free when realised on assets backing a pension.

The 0% rate is why franking credits matter so much in retirement phase. With no tax to offset, fully franked dividends can generate a full cash refund of the franking credits to the fund.

There is a separate benefit for the member personally. Pension payments made to a member aged 60 or over from a taxed fund are tax-free — they are not included in the member’s assessable income and do not need to be declared.

 

Who this matters to

The difference matters most as members approach and enter retirement. Preservation age is now 60 for everyone, and common conditions of release include retiring after 60, ceasing an employment arrangement on or after 60, or simply reaching 65. Until one of those is met, super generally stays in accumulation.

It is worth noting that a transition to retirement income stream (TRIS) started before full retirement is not automatically in retirement phase. In its pre-retirement form, a TRIS is still taxed at 15% on earnings; it only shifts to the 0% ECPI treatment once the member meets a full condition of release, such as reaching 65.

 

A hypothetical worked example

Consider Marion, a hypothetical 66-year-old SMSF member. This example is illustrative only.

Suppose her fund earns $40,000 of income and realises a $60,000 long-term capital gain in a year.

If the whole balance is in accumulation, the income is taxed at 15% ($6,000), and the capital gain is discounted by one third to $40,000 and taxed at 15% ($6,000) — an effective 10% on the $60,000 gain. Total fund tax: roughly $12,000.

If the same assets instead support a retirement-phase pension, the income and the capital gain fall under ECPI and are taxed at 0%. The fund keeps the full return, and any pension Marion draws is tax-free in her hands because she is over 60.

The numbers show the mechanism, not a recommendation.

 

What SMSF trustees need to know

The 0% rate is not unlimited. The amount a member can move into retirement phase is capped by the transfer balance cap, which was $2 million in 2025–26 and was indexed to $2.1 million from 1 July 2026. Balances above a member’s personal cap must stay in accumulation and keep paying up to 15%.

Retirement-phase pensions also carry a minimum drawdown each year — 4% under 65, 5% for ages 65 to 74, rising with age. Failing to pay the minimum can cause the fund to lose the ECPI exemption for the year, so the earnings would be taxed at 15% instead of 0%.

Trustees also need accurate records and, where a fund has both phases, an actuarial certificate is often required to work out the exempt proportion of earnings.

 

Key Takeaway

The core SMSF tax difference is straightforward: accumulation earnings are taxed at 15% (with an effective 10% on discounted long-term capital gains), while retirement-phase earnings are Exempt Current Pension Income at 0%, and pension payments are tax-free from age 60. Access to the 0% phase is limited by the transfer balance cap ($2.1 million from 1 July 2026) and conditional on meeting minimum drawdowns. Understanding which phase a balance sits in is central to how any SMSF is taxed.