The super guarantee has now been 12 per cent for more than a year, and from 1 July 2026 it is paid under the new Payday Super system. Contribution caps also rose on 1 July, with the concessional cap reaching $32,500. For SMSF trustees and those weighing whether a fund makes sense, these changes affect how quickly balances build, how much room remains under the caps, and how fixed running costs compare with the money flowing in.

How the super guarantee reached 12 per cent

The super guarantee has climbed steadily over recent years. According to the ATO, the rate was 9.5 per cent in 2020–21 and then rose by half a percentage point each year.

It reached 10 per cent in 2021–22, 10.5 per cent in 2022–23, 11 per cent in 2023–24 and 11.5 per cent in 2024–25. It has been 12 per cent since 1 July 2025.

The ATO's rate table shows 12 per cent continuing for 2026–27 and from 1 July 2027 onwards. For eligible employees, that means a larger share of pay now flows into super than under any of those earlier rates.

Payday Super changes the timing

From 1 July 2026, employers calculate the minimum super guarantee as a percentage of each eligible employee's qualifying Earnings and pay it alongside wages, rather than quarterly.

For SMSFs, that means employer contributions may arrive more often and in smaller amounts, which may affect how trustees manage cash and record contributions.

The maximum contribution base has also changed. The ATO says that for 2026–27 it is an annual figure of $270,830, calculated by dividing the $32,500 concessional cap by the 12 per cent charge percentage. Employers generally do not have to pay super guarantee on earnings above that base.

The 2026–27 contribution caps

According to the ATO, the concessional contributions cap is $32,500 for 2026–27, up from $30,000 in 2025–26, following indexation to average weekly ordinary time earnings.

Employer super guarantee contributions count towards that cap, along with salary sacrifice and personal contributions claimed as a tax deduction. A higher super guarantee therefore uses up more of the cap.

For example, a hypothetical employee earning $150,000 a year would receive $18,000 in super guarantee contributions at 12 per cent. That would leave $14,500 of concessional cap space for 2026–27. At a 9.5 per cent rate, the same salary would have generated $14,250, leaving considerably more room.

Some members may be able to exceed the annual cap. The ATO says people with a total super balance below $500,000 on 30 June of the previous year may use unused concessional cap amounts from earlier years, which remain available for up to five years.

The non-concessional contributions cap rose to $130,000 from 1 July 2026. Under the bring-forward rules, members under 75 with a total super balance below $1.84 million at 30 June 2026 may contribute up to $390,000.

That bring-forward amount falls as balances rise, and the non-concessional cap is nil for anyone whose total super balance is $2.1 million or more.

What the higher rate means for a fund's inflows

For multi-member SMSFs, the effect of a higher super guarantee compounds across members.

Consider a hypothetical fund with two members, each earning $100,000. At 12 per cent, their employers would contribute a combined $24,000 a year before contributions tax. At 9.5 per cent, the same salaries would have produced $19,000.

That difference of $5,000 a year is before any Investment returns and depends entirely on the members' employment and earnings. It is illustrative only and does not indicate how any particular fund will perform. Over many years, a few extra percentage points of salary could accumulate into a noticeably larger balance, although actual outcomes vary.

Larger inflows could help a fund reach a scale where fixed costs represent a smaller proportion of Assets sooner. They do not, however, change the underlying responsibilities, risks or time involved in running a fund.

Balances, fixed costs and ASIC's guidance

Many SMSF expenses are fixed or semi-fixed, which means their impact depends heavily on fund size.

It notes these costs can exceed those of retail or industry funds, and that lower balances feel the effect of fixed costs more.

To illustrate, a hypothetical fund with total annual running costs of $4,000 would be paying the equivalent of 2 per cent of a $200,000 balance, 0.8 per cent of $500,000 and 0.4 per cent of $1 million.

Balance is not the only factor, though. In December 2022, ASIC removed earlier guidance on minimum SMSF balances from its information for advisers, saying balance alone is not the driving indicator of suitability. It pointed advisers to other factors, including costs, risks, diversification, Liquidity and the time commitment involved.

That time commitment is substantial. trustees spend on average more than eight hours a month managing their fund, or over 100 hours a year.

What trustees may want to consider

With higher contributions arriving more frequently, trustees may want to check how their fund records contributions against each member's caps, particularly where members also salary sacrifice or claim personal deductions.

Members with lower balances could consider whether carry-forward rules apply to them, while those with larger balances may need to watch the bring-forward and total super balance thresholds.

Because caps, thresholds and eligibility depend on each person's circumstances,

The bottom line

A 12 per cent super guarantee paid on payday means larger and more frequent contributions for SMSF members with employer super. At the same time, the higher rate consumes more of the $32,500 concessional cap, while indexed non-concessional and bring-forward limits set the boundaries for extra contributions. Faster-growing balances could dilute fixed costs, but ASIC's guidance makes clear that balance is only one Factor among costs, risks, Diversification and time when assessing whether an SMSF may suit individual circumstances.