Why Does Payroll Need STP

What STP is and why payroll needs it

Single Touch Payroll (STP) is how Australian employers report payroll information to the ATO every pay cycle. It moves reporting from once‑a‑year payment summaries to real‑time digital lodgements. That improves accuracy, reduces end‑of‑year paperwork, and helps the ATO match PAYG withholding and superannuation obligations.

If you employ people or pay directors’ fees, your payroll must be processed in STP‑enabled software and lodged on or before payday. That is why payroll needs STP: it is the official channel the ATO requires for reporting pay, tax withheld and super liability.

Who must use STP and when

• All employers: companies, sole traders with employees, partnerships and trusts must report via STP.
• Payments in scope: salaries and wages, directors’ fees, allowances, paid leave, overtime, bonuses, PAYG withholding and super liability.
• Timing: lodge a pay event on or before payday. If you need to fix details later, send an update event.
• Closely held payees: family members or beneficiaries paid from a family business are in scope. Some employers can report these quarterly through STP if eligibility rules are met.
• Contractors: generally not reported unless you withhold PAYG (e.g., no ABN quoted or a voluntary agreement). If you withhold, those payments are reported via STP.
• End of year: make a finalisation declaration instead of issuing payment summaries so employees see “Tax ready” Income Statements in myGov.

STP Phase 2 at a glance

STP Phase 2 expands what you report so government agencies receive more detail and you no longer need to submit TFN declarations separately. Correct mapping in your payroll software is essential.

• Disaggregation of gross: separately report base pay, overtime, allowances, paid leave, bonuses and commissions.
• Income types: e.g., SAL (salary and wages), CHP (closely held payees), IAA (inbound assignees), WHM (working holiday makers).
• Leave categories: paid parental leave, annual leave, personal leave and long service leave mapped to STP2 fields.
• Salary sacrifice and RESC: report salary sacrifice types and Reportable Employer Super Contributions correctly.
• Child support and other deductions: some amounts can be reported through STP depending on the arrangement.

Set up STP correctly: a simple checklist

• Register for PAYG withholding (and super if required) for the employing entity.
• Choose STP Phase 2 enabled payroll software that fits your team and awards.
• Enter entity details accurately: ABN, branch number (if applicable), and contact details.
• Add employees with TFN, date of birth, address, super choice details and income type.
• Map pay items to STP2 categories (base pay, allowances, leave, overtime, bonuses, salary sacrifice, deductions).
• Connect your super clearing house and confirm Ordinary Time Earnings settings.
• Run a test pay, check totals, then lodge the first STP pay event on or before payday.
• Finalise at year end so employee Income Statements show as “Tax ready”.

Common mistakes and how to fix them

• Incorrect mapping to STP2 categories: revisit pay item setup and send an update event to correct year‑to‑date totals.
• Missing super or wrong OTE: correct the pay run, make the top‑up super payment and update the STP submission.
• Not reporting directors’ fees: add a pay item for directors’ fees and include them in pay or update events.
• Using contractor items for employees: confirm engagement status and fix employee setup if they are in fact employees.
• Late or missed lodgements: lodge outstanding events as soon as possible and consider a BAS/tax agent to manage ATO contact and penalty remission.

Software fit for Australian STP

Most Australian platforms support STP Phase 2. Popular choices include Xero, MYOB, QuickBooks Online and dedicated payroll tools that integrate with accounting systems. The right choice depends on headcount, awards, rostering needs and reporting depth.

• Confirm STP2 compliance and any provider deferrals have ended for your version.
• Check award interpretation, timesheets, leave, allowances and super processing workflows.
• Review reporting: payroll activity, YTD reconciliation, and EOFY finalisation tools.

Where STP connects to other work

STP touches BAS, super, tax and bookkeeping. Aligning these reduces rework and compliance risk:

• BAS and PAYG withholding: STP supports accurate W1/W2 reporting on your BAS.
• Superannuation: ensure payments match STP liabilities and are paid by due dates.
• Bookkeeping: reconcile payroll clearing accounts and year‑to‑date balances monthly.
• Tax: finalised STP income statements flow to employee tax returns and ATO matching.

If your question started as “why does payroll need STP”, the practical next step is to align payroll, BAS and super processes so lodgements are timely and consistent.

Best next steps

Decide what outcome you need most right now: clean STP setup, a one‑off health check, help fixing errors, or a full payroll outsource. Then shortlist a provider who can explain STP Phase 2 mapping, confirm deadlines, and show you how the workflow fits your software.

Use these service pages if you are moving from research to action:

• Payroll services for STP setup, catch‑up and ongoing processing
• BAS agent services for PAYG and BAS alignment
• Bookkeeping services for payroll reconciliations
• Tax accountant for year‑end and ATO issues
• Small business accountant if payroll is part of a wider support need