The clock changed — the rate didn't
For as long as most founders have run payroll in Australia, super guarantee lived on a quarterly rhythm: calculate what was owed on ordinary time earnings, get it to the fund within 28 days of quarter end, done. Four dates a year — 28 October, 28 January, 28 April, 28 July — and a business could treat super as a periodic task rather than a payroll-cycle one.
That rhythm ended on 1 July 2026. Under Payday Super, super guarantee on qualifying earnings now has to reach the employee's fund within 7 business days of the payday that generated it. The day wages are paid counts as day zero, and the clock runs on business days — weekends and state-wide public holidays don't count against it, but a payday every fortnight means a live super deadline every fortnight, not four fixed dates a year.
The rate itself didn't move — super guarantee is still 12%. What moved is the unit of time the obligation is measured against, and that's a bigger operational shift than a rate change ever was.
Why this hits cash-flow rhythm before it hits the payroll checklist
A quarterly obligation gives a business twelve or thirteen weeks of runway between "money owed" and "money due." A founder could let cash build for a few weeks, true up the super calculation once, and clear it before the 28-day mark. That slack is gone. Under a fortnightly pay cycle, super now has to be funded and moving within days of every single pay run — twenty-six times a year instead of four.
The practical effect shows up in the bank account before it shows up anywhere else. If a business has been treating the super liability as a lump building toward a quarter-end payment, that habit now produces a mismatch: the cash needs to be available roughly every payday, not saved up and released once a quarter. Businesses that already fund super out of the same run that funds net pay won't feel much difference. Businesses that were quietly using the 28-day gap as working capital will feel it immediately.
The fix is mechanical, not financial engineering: treat the super component of each pay run as gone the moment payroll is submitted, the same way PAYG withholding already is, rather than as a balance that accrues and gets swept later.
What moves on the payroll-ops side
The 7-business-day deadline is measured from when the fund receives the contribution with enough information to allocate it to the right member — not from when the business initiates the payment. Routing a contribution through a clearing house doesn't stop that clock; if the clearing house takes two or three business days to pass the money and data through to the fund, that time comes out of the 7-day window, not on top of it.
That makes the actual submission point in the pay run matter more than it used to. A process that submits super a day or two after net pay, or waits for a manual batch approval, can eat most of the buffer before the fund even sees the contribution. The operational target under Payday Super is initiating the super payment in the same action as the pay run itself, not as a follow-up task.
There's a narrower exception for new employees, where the deadline extends to 20 business days after their first qualifying-earnings payday — mainly to allow time for a stapled-fund lookup or a choice-of-fund form to land before the first contribution needs to move. Outside that window, the 7-business-day standard is the one every payday runs against.
Where Single Touch Payroll fits in
Payday Super leans directly on Single Touch Payroll reporting. STP already sends the ATO wage and super information for each payday, and that reporting stays mandatory under the new regime — a business still reports through STP-enabled software, on or before each payday, the same as before. What's different is what the ATO does with it: STP data on what was reported as owed can now be matched, payday by payday, against what funds actually confirm they received.
That near-real-time matching is the mechanical reason the compliance model changed underneath employers. When the ATO already has both sides of the ledger — what STP says was owed, what the fund says arrived — there's no need to wait for an employer to self-report a shortfall at quarter end. The data to spot a gap is arriving on the same cadence the gap would occur.
Who assesses a shortfall — and where the liability question goes
This is the part that catches people out: for paydays from 1 July 2026 onward, an employer no longer lodges its own super guarantee charge statement when a payment is missed or short. The ATO calculates the shortfall itself, using the STP and fund data it already holds, and issues a notice of assessment directly. The shortfall component of that charge becomes deductible under the new rules, but the interest and administrative uplift layered on top of it are not — and the interest compounds daily from the point the shortfall existed, regardless of when it's noticed.
For quarters that ended on or before 30 June 2026, none of this is retrospective — those periods are still assessed under the old 28-day quarterly mechanics.
Whether a specific contribution counts as short, how a particular payment should have been classified within qualifying earnings, or how to respond to an ATO assessment once one lands — those are liability questions, and they run through your registered BAS or tax agent, who deals with the ATO on the matter. Payroll processing on the operational side is what keeps qualifying earnings calculated correctly and contributions moving on the 7-business-day cadence in the first place; getting that plumbing right is what gives the agent a clean number to stand behind if a question ever comes up.
Reading about it is optional. The books aren’t.
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