Payroll Software for Australian Small Business: STP Phase 2 and Super Compliance Compared

If you run payroll for an Australian small business and you have not opened your software's settings since June, stop and check something first. The rules changed on the first of July, and not in a small way.

Most payroll software Australia businesses were using a few months ago is either already updated for this or quietly falling behind. Payday Super replaced the old quarterly super system entirely, the ATO's free clearing house is gone, and STP Phase 2 keeps demanding more detail with every pay run than most businesses realize.

This guide walks through what actually changed, what genuinely compliant cloud payroll software needs to handle right now, and how to think about the buying decision instead of trusting whichever vendor showed up first in your search results. 

Payday Super Is Now Law, Not Coming Legislation

This is the single most important thing to get right in this whole guide, and a surprising number of articles still get it wrong.

What Changed on 1 July 2026

Payday Super commenced on 1 July 2026. Employers must now pay Superannuation Guarantee within 7 business days of every payday, replacing the old system where quarterly payments were enough. The super rate itself stays at 12 percent, that part has not changed and there is no further legislated increase coming, despite a 12.5 percent figure circulating that simply is not real.

The New Calculation Basis and Timing Pressure

What actually changed is the calculation basis and the timing pressure. Super is now based on Qualifying Earnings, a new term combining ordinary time earnings with salary sacrifice and other payments, replacing the older Ordinary Time Earnings measure businesses were used to.

The Annual Maximum Contribution Base

The Maximum Contribution Base moved from a quarterly figure to an annual one, sitting at $270,830 for the 2026-27 financial year, which means once an employee's Qualifying Earnings hit that figure for the year, you stop owing further super on them until the next financial year starts. Get that annual tracking wrong and you either overpay unnecessarily or underpay and trigger a shortfall.

What Happens If You Get This Wrong

The stakes for getting this wrong are real, not theoretical. Missing the 7 business day window makes you liable for the Superannuation Guarantee Charge, and penalties can run as high as 60 percent of the shortfall on top of the unpaid amount itself, plus daily interest.

How the ATO Now Catches Shortfalls

The ATO has also changed how it catches this. It no longer waits for you to self assess and lodge a statement, it now identifies shortfalls directly from your own STP data and issues an assessment. That is a meaningful shift, your payroll software's reporting accuracy is now the same data source the ATO uses to check whether you paid super correctly and on time.

The First Year Compliance Approach

There is some genuine breathing room built in for the first year. The ATO has published a three tier compliance approach for the 2026-27 financial year specifically, under Practical Compliance Guideline PCG 2026/1. Employers who correct mistakes quickly are classed low risk and are not a priority for enforcement. Employers who miss a payment but fix the shortfall within 28 days of the end of the relevant quarter fall into a medium risk category. High risk is reserved for businesses with unpaid super sitting outside that 28 day window with no action taken.

That leniency is deliberate and temporary, it exists because the ATO recognizes how many businesses genuinely were not ready for a change of this scale, not because the underlying rule has softened. Ato compliant payroll software needs to reflect all of this correctly, the current calculation basis, the annual cap, and the payment timing, not the quarterly system that stopped applying weeks ago.

The Small Business Superannuation Clearing House Is Gone

If your business used the ATO's free Small Business Superannuation Clearing House, it closed permanently on 30 June 2026. New users could not even register from 1 October 2025 onward, and existing users lost access entirely once the final date passed. That is not a future deadline anymore, it already happened.

Any business still relying on it needs an alternative clearing house solution immediately, either through commercial payroll software with integrated super payment functionality, or a third party clearing house offered by a default super fund. This is exactly the kind of gap that catches small businesses off guard, not because the change was hidden, the ATO published closure notices well in advance, but because it is easy to assume something described for months as "coming" is still coming when it has actually already arrived. If your payroll software cannot tell you clearly which clearing house it now routes super payments through, that is worth resolving before your next pay run, not after a missed payment forces the question.

Where to Read the Full Breakdown

We have covered this reform in full depth elsewhere, including the transition steps and penalty structure in more detail, in our dedicated guide on Payday Super, if you want the complete breakdown beyond what this piece covers for payroll software specifically.

What Single Touch Payroll Actually Requires, Straight from the ATO

Getting Payday Super right depends on getting the underlying STP reporting right first, and this is where a lot of software falls short in ways that are not obvious until something goes wrong.

What STP Is

Single Touch Payroll is the ATO's system for employers to report salaries, wages, PAYG withholding, and super directly to the ATO every time payroll runs, rather than compiling everything at year end the way businesses used to. That real time reporting is the foundation everything else in this guide sits on top of, since Payday Super's whole enforcement mechanism now depends on that same data arriving accurately and on schedule.

STP Phase 2, What Expanded

STP Phase 2 expanded what gets reported with each pay run significantly. Instead of one lump gross pay figure, income types, allowances, overtime, and bonuses now need to be disaggregated and reported as separate components rather than folded together. STP Phase 2 payroll software that cannot break pay down this way is not actually compliant, even if the total dollar amount on the payslip looks correct, because the ATO is checking the composition of what you paid, not just the sum total. A business paying the right amount overall but reporting it as one blended figure instead of separated components is still out of step with what Phase 2 actually requires.

How Businesses Actually Report STP Data

Employers report through STP enabled software, not by manually entering figures into an ATO portal by hand. The ATO maintains a list of STP reporting options covering businesses of every size, including low cost and no cost solutions built specifically for micro employers with four or fewer staff, so cost is not a legitimate reason to delay getting compliant software in place. This confirms something worth stating plainly, once you employ anyone in Australia, some form of STP enabled software is genuinely required, it is not an optional convenience layered on top of manual payroll.

STP and Your Activity Statements

Since July 2023, the ATO has used STP data to prefill PAYG withholding labels, specifically W1 and W2, directly into your activity statements. That means correctly reported STP data saves you from manually re-entering the same PAYG figures a second time at BAS lodgment. It is a small detail most payroll guides skip entirely, but it is a genuine, practical reason accuracy in STP reporting pays off in less admin work for you, beyond simply avoiding a compliance issue. Get your STP reporting wrong and that prefill is wrong too, which just shifts the correction work to BAS time instead of removing it.

What This Means for Employees

On the other side of this, employees can see their year to date tax and super information directly through myGov, sourced from whatever their employer reports through STP. This is easy to forget when you are focused purely on your own compliance obligations, but it means your STP accuracy is not just a matter between you and the ATO. An employee checking their own super contributions after each payday, which Payday Super is specifically designed to let them do now instead of waiting up to four months, is looking at data that came directly from your payroll reporting. A reporting error on your end does not stay invisible, it shows up as a discrepancy on someone's own myGov account, and increasingly, employees are the ones flagging missed or incorrect super payments directly through the ATO and Fair Work Ombudsman channels built for exactly that purpose.

Dedicated Payroll Software vs Accounting Software with Payroll Bolted On

There is a real difference between software built for payroll specifically and accounting software that added payroll as a feature later, and it is worth being honest about which one you are actually looking at.

Accounting platforms are primarily built to manage general ledgers and bank reconciliations, with payroll functioning as a secondary add on rather than the core product. Payroll software for small business owners choose specifically, built around STP Phase 2 and Fair Work compliance from the ground up, tends to handle complex award interpretation and real time compliance updates more reliably, since that is the actual product, not a feature competing for development priority against core accounting tools.

That does not mean accounting software with payroll is automatically wrong for every business. If your pay structures are genuinely simple, one flat rate, no award complexity, it can work fine. The mismatch shows up once your business involves penalty rates, allowances, or Fair Work Modern Awards that a general accounting platform was never built to interpret automatically, and it shows up again now specifically, since Payday Super adds a real time payment obligation on top of whatever reporting the software was already handling.

The Free Payroll Software Trap (and Which Free Tiers Are Actually Free)

Free payroll software exists in Australia, but the free tiers vary enormously in what they actually give you long term, and it is worth knowing the difference before you build a workflow around one.

Some free tiers are genuinely free with real limits, capped at a handful of employees but with no time limit attached, still receiving full core functionality. Others are free only temporarily, designed to move you onto a paid plan once you hit a submission count or a fixed time window, effectively a trial dressed up as a free tier from the outset. The distinction matters more now than it used to, because migrating payroll systems mid year, especially right as Payday Super and STP Phase 2 both demand more from your software at the same time, is a genuinely bad moment to discover your free tier just expired and you need to onboard a new system under pressure.

What to Actually Look For in Australian Payroll Software

Skip the feature list with forty checkboxes and focus on what actually matters for compliance specifically. Does the software correctly disaggregate pay components for STP Phase 2. Does it calculate super on Qualifying Earnings using the current Maximum Contribution Base, and does it stop correctly once that annual cap is reached for an employee. Does it integrate with a working clearing house now that the ATO's free option is gone. And does it update automatically when rates or reporting requirements change, rather than requiring you to manually track legislative updates yourself and hope you catch them in time. Any genuine payroll software Australia business relies on needs a clear, specific answer to all four, not just the first one.

How Enerpize Handles Payroll for Australian Small Business

AI Salary Components That Handle Payday Super Automatically

This is the part that actually changes how Australian payroll setup works, not just what it calculates. Enerpize has a feature called AI Salary Components, where instead of manually building a formula for each statutory deduction, you describe the rule in plain language and the AI builds the working formula from that description.

For an Australian business, that means describing PAYG withholding or Superannuation Guarantee exactly as the ATO defines it, 12 percent of Qualifying Earnings, for example, and the AI constructs that calculation. Before it touches a single employee's payslip, you test it against real employee data to confirm the numbers land correctly, including checking that it respects the Maximum Contribution Base rather than continuing to calculate super past the point where it should stop for the year. Once confirmed, it deducts automatically on every pay run from that point forward, which matters more now than it did a year ago, since Payday Super means that calculation now needs to run correctly every single payday, not once a quarter with more room to catch and fix an error before it compounds.

Payroll and Contracts Built for Ongoing Compliance

Once those AI built salary components exist, they attach directly to each employee's contract through Enerpize's payroll and contracts module. Payslips generate against actual attendance and leave, not a static figure someone re-enters manually, which is exactly what accurate cloud payroll software needs to do for STP Phase 2 reporting to actually be correct, since the reported components have to reflect what was genuinely worked, not an approximation someone typed in after the fact.

Employee Records That Keep STP-Relevant Details Organized

Tax file details, super fund information, and employment terms should not live in a separate onboarding spreadsheet disconnected from the actual payroll run. Enerpize's employee management tools, alongside the broader human resources platform, keep every employee's relevant details on the same record as their contract and salary structure. Any HR software Australia businesses adopt should do the same, since scattered records are exactly where STP reporting errors start, a super fund detail entered incorrectly during onboarding and never corrected is a mistake that resurfaces every single pay run until someone catches it.

Attendance Synced Directly Into Payroll

Since STP Phase 2 requires overtime and allowances reported as their own separate components, the attendance data driving those figures needs to feed the same payroll engine calculating them, not sit in a disconnected system someone reconciles manually afterward. Enerpize's attendance and leave management module supports geofencing and offline sync, with logs posting automatically into payroll, so overtime worked on a job site actually shows up correctly in the pay run and the STP report it generates, rather than being estimated or added in after the fact based on someone's memory of the week.

FAQs

Is Payday Super already in effect?

Yes. Payday Super commenced on 1 July 2026. Employers must now pay Superannuation Guarantee within 7 business days of each payday, not quarterly. This is current, active law, not upcoming legislation, and the ATO's Small Business Superannuation Clearing House closed permanently on the same date.

What is the current Superannuation Guarantee rate?

The rate is 12 percent of an employee's Qualifying Earnings, and it stays at 12 percent going forward. There is no legislated increase to 12.5 percent, despite that figure appearing in some outdated content. The Maximum Contribution Base for the 2026-27 financial year is $270,830 annually.

What is STP Phase 2?

STP Phase 2 is an expansion of Single Touch Payroll reporting requiring employers to report pay components, income types, allowances, overtime, and bonuses, separately rather than as one combined gross figure. Single Touch Payroll software needs to handle this disaggregation correctly for reporting to actually be compliant.

Do I need dedicated payroll software or is accounting software with payroll enough?

It depends on how complex your pay structures are. Simple, flat rate pay can work fine on accounting software with payroll included. Once Fair Work Modern Awards, penalty rates, or allowances are involved, dedicated payroll software for small business built around Australian compliance specifically tends to handle that complexity more reliably than payroll bolted onto a general accounting platform.

What happens if I miss a Payday Super deadline?

You become liable for the Superannuation Guarantee Charge, which can include a penalty of up to 60 percent of the shortfall plus daily interest. The ATO now identifies shortfalls directly from STP data rather than waiting for self assessment. A transitional leniency period applies for the 2026-27 financial year, with lower enforcement priority given to employers who correct mistakes quickly.

How much does payroll software cost for a small business in Australia?

Enerpize's plans start from $9.99 a month, with payroll, HR, attendance, accounting, and CRM included rather than sold as separate modules. A 14 day free trial with no credit card required lets a business test the actual Payday Super and STP Phase 2 calculations before committing.

About the Author

Omar El Bahr is a Senior Digital Growth Specialist at Enerpize, where he leads SEO, content strategy, and organic growth across international markets. He is a Forbes Communications Council contributor and has written for Entrepreneur on business communication and digital strategy.

Disclaimer: This article reflects Payday Super, STP Phase 2, and Superannuation Guarantee facts accurate at the time of writing, sourced directly from the ATO. Rates and requirements change. Confirm current figures directly with the ATO or a registered Australian tax or payroll professional before making compliance decisions.