One of the most valuable features of Superannuation is that, in the right phase, a fund pays no tax at all on its Investment earnings. For self-managed super fund (SMSF) members moving into retirement, this “retirement-phase” Earnings exemption can be worth a great deal each year. But it is widely misunderstood — often confused with the separate question of whether the money you withdraw is taxed. This article explains how tax-free investment earnings actually work inside an SMSF's retirement phase, what you must do to qualify, and where the limits lie ATO exempt current pension income.

Two different taxes: earnings versus benefits

The first step is to separate two ideas that people routinely merge. The first is tax on the fund's investment earnings — the rent, dividends, interest and capital gains the fund's Assets generate. The second is tax on the benefits a member receives — the pension payments or lump sums paid out. They are governed by different rules. You can have tax-free earnings inside the fund while a benefit is taxable, or the reverse. This article is about the first: the tax on earnings within the SMSF.

How earnings are taxed in accumulation phase

While your super is in accumulation phase — the savings stage before you start a retirement income stream — the fund pays tax on its earnings at a concessional rate of up to 15%. Capital gains on assets the fund has held for more than 12 months receive a one-third discount, giving an effective rate of around 10%. This is already favourable compared with most personal tax rates, but it is not zero.

How the retirement-phase exemption works

When you meet a condition of release and start a retirement-phase income stream, the earnings on the assets supporting that pension become exempt from tax. This exemption is called exempt current pension income (ECPI) ATO exempt current pension income. In a fund that is entirely supporting retirement-phase pensions, investment earnings — including realised capital gains on the supporting assets — can be fully exempt. That is what people mean by “tax-free earnings in retirement phase”.

There are two ways a fund identifies its exempt earnings. Under the segregated method, specific assets are set aside to support the pension and their income is automatically exempt. Under the proportionate (unsegregated) method, an actuary certifies the exempt proportion of the fund's income based on the average value of retirement-phase liabilities, and an actuarial certificate is required ATO exempt current pension income. Which method applies depends on the fund's structure and its members' balances.

Capital gains deserve a special mention because they are where the exemption often does its heaviest lifting. In accumulation phase, a realised Capital Gain is taxed (with the one-third discount for assets held more than 12 months). In retirement phase, a realised gain on an asset supporting the pension can be exempt entirely. This is why the timing of selling an appreciated asset — before or after a pension commences, and whether the asset is supporting the pension at the time — can materially change the fund's tax outcome. It is also why trustees should not assume that simply being “in pension phase” shelters every gain; the asset has to actually be supporting a retirement-phase interest, and the fund's method for claiming ECPI has to be applied correctly.

The transfer balance cap sets the ceiling

The exemption is generous but capped. The amount of capital you can move into the retirement phase is limited by the transfer balance cap, which is $2.1 million from 1 July 2026 ATO transfer balance cap. Your personal cap depends on your history and indexation ATO personal transfer balance cap. Money above your cap must stay in accumulation, where its earnings are taxed at up to 15%. So the retirement-phase exemption applies to the earnings on the capital within your cap, not to your entire balance if it exceeds the cap.

A new limit for very large balances

From 1 July 2026, an additional tax known as Division 296 applies to individuals whose total superannuation balance exceeds $3 million. It imposes an extra 15% on the portion of earnings attributable to balances between $3 million and $10 million, and 25% above $10 million, with the first assessments based on balances at 30 June 2027 ATO key superannuation rates. This measure has passed parliament and applies regardless of whether the balance is in accumulation or retirement phase. Most members will not be affected, but those with large SMSFs should Factor it in; the retirement-phase exemption does not shield earnings from Division 296.

TTR pensions do not get the exemption

A common trap: earnings on assets supporting a transition-to-retirement (TTR) pension are not exempt until that pension moves into retirement phase (on retirement or turning 65). While it is still a TTR pension, the supporting earnings are taxed like accumulation earnings ATO income stream rules. The exemption is a feature of retirement phase specifically, not of any pension.

A hypothetical example

Hypothetical: Tony, 67, has met a condition of release. His SMSF holds $1.2 million, all supporting an account-based pension in retirement phase. Over the year the fund earns $60,000 in rent, dividends and a realised capital gain. Because all of the fund's assets support a retirement-phase pension and Tony's balance is under his transfer balance cap, that $60,000 can be fully exempt from tax under ECPI — the fund pays nothing on it. If Tony instead had $2.6 million, only the capital within his cap could support the pension; the excess would sit in accumulation, and earnings on that excess would be taxed at up to 15%.

The takeaway

Tax-free earnings in retirement phase are real and valuable, but they depend on three things: genuinely meeting a condition of release and starting a retirement-phase income stream, staying within your transfer balance cap, and paying at least the minimum pension each year to keep the exemption alive ATO income stream rules. Keep the concept of tax-free earnings separate from the question of whether your withdrawals are taxed, mind the cap, and remember that very large balances now face the Division 296 overlay. Get those elements right and the retirement-phase exemption does its quiet, compounding work year after year.