In 2025, the Australian Taxation Office (ATO) will have real-time visibility of payroll reporting across all businesses. For employers, this means Single Touch Payroll (STP) is no longer a back-office obligation; it is a direct compliance channel that feeds into tax, superannuation, and audit profiling. When configured correctly, STP can streamline processes and strengthen financial transparency. When ignored or mishandled, it can expose a business to penalties and audit risk.
At Blackwattle Tax, we work with mid-sized businesses to ensure STP is not just a compliance tool, but a reliable part of your wider tax and business strategy.
What Is Single Touch Payroll and why does It Matter in 2025
Single Touch Payroll (STP) is the ATO’s digital reporting framework that requires employers to submit wages, tax withholding, and superannuation data electronically each pay cycle. It has replaced the old system of issuing annual payment summaries and group certificates, with employees now able to view their income statements directly through myGov.
The system was first introduced in 2018 and became mandatory for all employers from 2019. In 2025, the requirements are more detailed than ever under STP Phase 2, and the ATO is using this data to monitor compliance in real time. For business owners, this means STP is not just about meeting reporting obligations — it also influences how activity statements, superannuation liabilities, and even director payments are reconciled.
For a broader view of how STP reporting interacts with your tax obligations, see our tax compliance services.
STP Phase 2: What’s Changed and What the ATO Now Sees
STP Phase 2 commenced on 1 January 2022; however, enforcement and reporting standards are expected to tighten in 2025. Unlike Phase 1, which largely captured wages, PAYG withholding, and superannuation, Phase 2 requires a granular breakdown of how income is classified and how employees are engaged.
The expanded categories include:
- Disaggregation of income – ordinary time earnings, overtime, bonuses, and allowances are reported separately.
- Employment types, including casual, part-time, and full-time roles, must be identified.
- Leave and termination details – parental leave, redundancies, and unused leave payments are included.
- Child support and garnishees – deductions reported directly to the ATO.
- Tax treatment codes – applied per employee to reflect their tax position.
These changes mean payroll software must be properly mapped to avoid misclassification. For example, treating a travel allowance as ordinary wages will not only distort payroll data but may also raise questions when reconciled against your Business Activity Statement (BAS).
At Blackwattle Tax, we regularly review Phase 2 configurations in systems like Xero and MYOB to ensure our clients’ payroll is correctly aligned with the ATO schema. This reduces the risk of penalties and strengthens the integrity of your reporting.
How STP Reporting Works in Practice
STP reporting is designed to integrate into the normal payroll cycle, minimising duplication of effort while ensuring accuracy. The process is straightforward:
- Payroll is processed in STP-enabled software.
- Employee payment data, wages, PAYG withholding, and superannuation are transmitted digitally to the ATO.
- Employees access their records through myGov, with year-to-date balances updated after each pay run.
- At year-end, employers lodge an STP finalisation to confirm the data as “tax ready.”
The benefit of this system is that the ATO receives information progressively, reducing the chance of discrepancies at year-end. However, this also means errors are visible as they happen. For businesses with larger or more complex payrolls, this can trigger automated alerts or reviews if not addressed promptly.
We configure STP systems as part of our Virtual CFO services, so payroll reporting is not only compliant but also provides valuable insights into cash flow and workforce costs.
Who Must Report Through STP in 2025
STP reporting is mandatory for all Australian employers regardless of whether you operate as a sole trader, partnership, trust, or company. This includes micro employers with one or two staff, as well as family businesses paying directors or beneficiaries as “closely held payees.”
In practice, this means:
- Small employers – even with one casual employee, you must report.
- Family businesses – payments to directors, trustees, or beneficiaries must be reported if they resemble wages.
- Medium and large employers – real-time data submission is compulsory across all pay runs.
The ATO has allowed quarterly reporting concessions for closely held payees, but these must be applied through a registered tax or BAS agent. By 2025, these concessions will be tightly controlled and subject to review.
For many of our clients, the challenge is not whether they report, but whether they report correctly. Misclassifications or omissions can quickly create red flags when the ATO cross-checks STP data with BAS lodgements and super clearing house records.
How to Register for Single Touch Payroll
Setting up for STP begins with choosing payroll software that is ATO-approved for Phase 2 compliance. Most accounting platforms, including Xero, MYOB, and QuickBooks, are enabled, but each requires proper configuration before reporting can commence.
The registration process generally involves:
- Selecting software that is certified as STP-enabled.
- Linking your Business Management Software (BMS) ID with the ATO through Access Manager or via your registered tax agent.
- Testing the connection to ensure that pay runs transmit successfully.
For very small employers, the ATO maintains a register of low-cost STP solutions designed for businesses with fewer than five employees. These packages, such as MYOB Business – Payroll Only (from $10/month), provide a compliant pathway for micro employers who may not require full accounting functionality.
At Blackwattle Tax, we configure payroll systems not only for compliance but also to ensure consistency with BAS reporting and year-end reconciliation. For clients already using our bookkeeping and compliance services, STP setup is fully integrated into monthly processing.
What Is the STP Finalisation Process?
End-of-year reporting under STP is managed through a process known as “finalisation.” Rather than preparing payment summaries, employers must declare to the ATO that the year’s payroll data is accurate and complete.
For most businesses, the deadline is 14 July 2025. For closely held payees, directors, shareholders, or family members drawing wages, the deadline is extended to 30 September 2025 if a quarterly reporting concession is in place.
The finalisation lodgement confirms:
- Total income paid to each employee
- PAYG withheld throughout the year
- Superannuation liabilities
- Tax treatment codes
- Employee status (active or terminated)
Once accepted, the employee’s income statement in myGov is marked as “Tax Ready,” replacing the need for group certificates.
If you are switching payroll software mid-year, extra care is required to prevent duplication of year-to-date figures. We reconcile STP reports with BAS and ledger entries before lodging, ensuring clean data is sent to the ATO.
Common STP Reporting Mistakes That Trigger ATO Audits
Because STP operates in real time, the ATO can immediately detect inconsistencies between payroll data, BAS reports, and superannuation clearing house submissions. The most common errors we see include:
- Duplicate payroll runs where entries are sent twice, overstating income.
- Incorrect mapping of allowances and overtime as ordinary time earnings.
- Unreported termination payments or unused leave payouts.
- PAYG withholding mismatches between STP reports and BAS lodgements.
- Non-finalised STP data left in draft status past 14 July.
When these discrepancies occur, the ATO’s automated systems may issue reminders or, in some cases, escalate to a manual compliance review. Repeated mismatches are particularly high risk, as they can be interpreted as attempts to conceal wage liabilities.
At Blackwattle Tax, our monthly tax compliance reviews include proactive checks of STP data against general ledger and BAS figures. This prevents errors from escalating into penalties or audits.
How STP Links to Your BAS and Financial Systems
STP is more than payroll reporting; it directly influences your Business Activity Statement (BAS). The ATO uses STP data to pre-fill PAYG withholding fields in BAS lodgements, reducing manual input but also tightening the tolerance for discrepancies.
For example, if your STP reports show $50,000 in PAYG withheld across the quarter but your lodged BAS only reports $45,000, the ATO’s systems will immediately flag the difference. This can delay refunds, trigger queries, or escalate to audit.
The solution is seamless integration between payroll software, super clearing houses, and general ledgers. At Blackwattle Tax, we configure payroll systems to ensure every pay run flows consistently into both STP and BAS, so your reporting is aligned and defensible.
This level of integration is especially valuable for businesses utilizing our Virtual CFO services, where payroll data seamlessly integrates with cash flow forecasting, budget monitoring, and headcount planning.
How Blackwattle Uses STP Data to Drive Strategic CFO Advice
For many businesses, Single Touch Payroll is treated as a compliance checkbox. At Blackwattle Tax, we see it as a live data stream that can inform stronger financial decisions. By analysing payroll data captured through STP, our Virtual CFO team identifies trends that go far beyond wages and super.
STP insights support:
- Payroll-to-revenue ratios – guiding decisions about when to hire or restructure.
- Cash flow monitoring – spotting superannuation payment lags before they create liabilities.
- Leave liability management – anticipating workforce costs for seasonal businesses.
- Capital allocation planning – understanding how payroll outflows align with revenue cycles.
- Grant eligibility forecasting – ensuring R&D or EMDG claims align with actual payroll records.
For example, a retail client utilized STP data to monitor payroll discrepancies across departments. By aligning this data with monthly sales figures, we provided evidence that helped redirect staffing hours and restore profitability. This is the strategic advantage of treating STP as more than compliance; it becomes a financial intelligence tool.
What Happens If You Fail to Lodge STP Correctly?
The ATO considers failure to lodge STP a breach of the Taxation Administration Act 1953, and penalties apply on a per-event basis. As of 2025, the fines are:
- Small businesses (≤19 employees): up to $1,050 per missed or late report
- Medium businesses (20–199 employees): up to $2,100
- Large employers (200+ employees): up to $5,250
Beyond monetary penalties, the consequences can be more damaging:
- Grant ineligibility – delayed BAS or STP discrepancies may impact R&D or export grant claims.
- Compliance history downgrades – affecting how the ATO assesses your business in future reviews.
- Payroll tax reconciliation issues – especially when state revenue offices cross-check data.
In many cases, non-compliance arises not from intent but from misconfigured software or failure to finalise reports. We often see issues emerge when businesses change payroll systems mid-year and don’t update their Business Management Software (BMS) ID.
Blackwattle Tax conducts “STP health checks” for new clients, identifying missed lodgements and reconciling them before ATO enforcement escalates.
Why Blackwattle Tax Is the Right Partner for STP Strategy and Compliance
STP compliance requires more than just pushing data through software. It involves aligning payroll with BAS, ensuring director and family payments are properly reported, and embedding the system into wider financial planning.
At Blackwattle Tax, our STP methodology includes:
- Full software setup – configuring Xero, MYOB, or QuickBooks for Phase 2 compliance.
- Payroll mapping – ensuring allowances, bonuses, and director fees are categorised correctly.
- Closely held payee reporting – structuring director or beneficiary payments to meet ATO standards.
- Ongoing reconciliation – cross-checking STP with BAS, general ledger, and super clearing house data.
- Audit defence – handling ATO correspondence and rectifying flagged discrepancies.
Smarter STP Compliance Starts with Strategic Action
Single Touch Payroll has evolved into one of the ATO’s most powerful compliance tools. In 2025, it is not just about submitting wages; it is about ensuring payroll data supports accurate BAS lodgements, audit readiness, and financial transparency.
Businesses that treat STP as a strategic asset, not a burden, reduce risk and strengthen their financial position. At Blackwattle Tax, our Chartered Accountants and CFO specialists help you configure, monitor, and use STP data to support both compliance and growth.
Book a FREE 30-minute consultation with a Chartered Accountant to discuss how your business can embed STP into a smarter compliance strategy.
Contact Blackwattle Tax today and ensure your payroll systems are audit-ready and strategically aligned.
Frequently Asked Questions About Single Touch Payroll (STP)
What is Single Touch Payroll (STP) reporting?
STP is the ATO’s digital system where employers report wages, PAYG, and super after each pay run. It replaces annual payment summaries, with employees now viewing income statements in myGov.
Is Single Touch Payroll mandatory for small businesses?
Yes. Since 2019, STP has been compulsory for all employers, including micro businesses with one to four staff. Family businesses paying directors or beneficiaries must also comply.
What happens if I don’t lodge STP reports on time?
The ATO can impose penalties ranging from $1,050 to $5,250 per missed report, depending on business size. Non-compliance may also trigger audits or BAS delays.
What are the main changes under STP Phase 2?
Phase 2 requires detailed payroll data such as allowances, overtime, leave, and tax treatment codes. This gives the ATO greater visibility, making the correct setup essential.
How do I finalise STP at year-end?
Employers must lodge a finalisation declaration by 14 July 2025, or 30 September for closely held payees. Once submitted, employees’ myGov income statements are marked “Tax Ready.”