Payday Super: The Super Guarantee Charge Just Got More Expensive — Here’s What Changed

Most guides on Payday Super get the Super Guarantee Charge wrong. Not slightly wrong — fundamentally wrong. And if Australian business owners are making compliance decisions based on that information, the consequences could be costly.

Here is what the guides are missing, and what the ATO actually says.

The claim circulating across the internet

Search for Payday Super and SGC in the same article and you will find a consistent claim: the Super Guarantee Charge is not tax deductible. It appears in guides from payroll software companies, super funds, and accounting platforms alike. Most have simply carried forward the old rule without checking whether it still applies.

It doesn’t.

What the ATO actually says

The new SGC — the one that applies from 1 July 2026 under Payday Super — is tax deductible. This is a deliberate change from the old regime, where the SGC was explicitly not deductible. The ATO confirms this directly on its Payday Super pages.

However — and this distinction matters — two related costs are not deductible:

• The general interest charge that accrues on an unpaid SGC assessment
• The late payment penalty imposed for failing to pay the SGC after assessment

The SGC base amount: deductible. The interest and penalties on top of it: not deductible.

Why this matters more under Payday Super

Under the old quarterly system, most businesses self-assessed and lodged an SGC statement if they missed a payment. The SGC was a known quantity — painful, but manageable.

Under Payday Super, the SGC is assessed by the ATO, not self-reported. And it is assessed per payday — not per quarter. Miss a weekly payroll deadline and you have triggered an SGC event. Miss it again the following week and that is a second. The compounding effect is real and fast.

The new SGC has four components:

1. Individual final SG shortfall — the unpaid super amount
2. Notional earnings — interest at the general interest charge rate, compounded daily from the day after the 7-day deadline is missed
3. Administrative uplift — initially 60% of the total shortfall and notional earnings for that payday, which may be reduced under ATO regulations
4. Choice loading — 25% of contributions for any payday where fund choice rules were not followed, capped at $1,200 per notice period

If the SGC remains unpaid after the ATO issues an assessment, a late payment penalty applies — 25% of the outstanding amount, escalating to 50% if the same penalty was imposed in the previous 24 months. That penalty cannot be remitted.

The practical takeaway

The deductibility of the SGC base amount is not a minor technical detail. For a business that falls behind on super payments — even briefly during the July 2026 transition — knowing that the SGC itself is deductible changes the financial picture. It does not make missing deadlines acceptable. But it does mean the tax treatment of a late payment is better than most guides suggest.

What is not better: the speed and scale at which the new SGC compounds. Daily interest. Per payday assessment. ATO-initiated. The administrative uplift alone — at an initial 60% — makes even a single missed deadline significantly more expensive than anything in the old quarterly system.

The best response to all of this is simple: don’t miss the deadline. Build a payroll process that makes that impossible.

For the complete breakdown of every Payday Super rule — verified directly against ATO sources — read the full guide:

👉 Payday Super 2026: Everything Australian Small Businesses Need to Know Before July 1

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