Single Touch Payroll Finalisation 2025–26: Why April 2026 Is the Right Time for Australian Employers to Fix Payroll Data

For Australian accountants, bookkeepers and small business owners, one of the most relevant and timely topics in April 2026 is STP finalisation readiness for the 2025–26 financial year. While finalisation declarations are generally lodged after 30 June, April is the point where payroll errors are still fixable without a full last-minute scramble.

This is especially important in 2026 because the ATO continues to use Single Touch Payroll (STP) data as a core compliance dataset for employee income statements, super visibility, tax return prefill and employer risk reviews. If payroll categories, year-to-date figures, super obligations or employee setup data are wrong now, those issues tend to compound by June.

In practice, April is when advisers should start a structured payroll health check across all employer clients. The goal is simple: identify reporting errors early, reconcile payroll to BAS and general ledger data, and avoid July amendments, employee complaints and ATO follow-up.

Why STP finalisation is an April 2026 priority

Although STP finalisation feels like a July task, the most efficient firms treat it as an April-to-June cleanup project. By this stage of the financial year, employers usually have enough payroll history to spot recurring issues such as:

• incorrect income type mapping
• allowances reported as gross wages
• termination payments coded incorrectly
• superannuation not aligning with payroll records
• PAYG withholding not reconciling to lodged BAS figures
• duplicate or inactive employee records still affecting year-to-date totals
• director or shareholder wages treated inconsistently across the year

Leaving these issues until late June or July creates avoidable pressure. Employees may see incorrect income statement data, tax return prefills can be affected, and accountants are then forced into amendment work during peak compliance season.

For firms managing multiple clients, April 2026 is the right time to segment employers by payroll risk and start remediation now.

What employers need to finalise under STP

At year-end, employers reporting through STP generally need to make a finalisation declaration so employees can see their information as tax ready in myGov. Before that happens, payroll data should be reviewed for accuracy across the full year.

Key data points to check include:

• gross wages and salary
• PAYG withholding
• allowances
• lump sum payments
• reportable employer super contributions where relevant
• salary sacrifice amounts
• termination and leave payments
• super guarantee obligations and clearing house timing

For closely held payees and family-run businesses, special attention is still needed where payroll reporting patterns are less regular than standard weekly or fortnightly cycles.

The April 2026 payroll review checklist

Here is a practical checklist accountants and bookkeepers can work through now.

1. Reconcile payroll year-to-date figures to the general ledger

Compare payroll reports to wage expense, PAYG withholding payable and superannuation payable accounts in the ledger. Investigate any unexplained variances immediately.

Common causes include:

• journal entries posted directly to wage accounts
• pay runs reversed incorrectly
• manual adjustments not pushed through STP
• owner drawings misclassified as wages

2. Reconcile payroll to BAS lodged for July 2025 to March 2026

By April, many employers will have lodged several BAS periods for the 2025–26 year. Compare total wages and PAYG withholding reported through payroll to BAS labels already lodged. If the payroll system and BAS figures do not align, determine whether the issue sits in payroll coding, BAS preparation or bookkeeping classification.

This is particularly important for quarterly lodgers preparing for the March 2026 quarter BAS.

3. Check employee setup data

Review employee records for:

• correct TFN and date of birth
• accurate commencement and termination dates
• correct income type
• valid address and contact details
• duplicate employee cards

Data quality issues often surface only at finalisation time, so April is the best time to clean them up.

4. Review allowance and deduction mapping

Incorrect payroll item mapping is one of the most common STP problems. Ensure travel allowances, tool allowances, meal allowances, salary sacrifice and deductions are mapped to the correct STP reporting categories.

If allowances have been included in gross wages all year, fix the setup now and assess whether prior pay events need correction.

5. Review termination payments before year-end

If any employee has left during 2025–26, confirm whether unused leave, ETPs and final payments were treated correctly. Errors here can create tax return issues for employees and may trigger amended STP reporting later.

6. Check super guarantee timing and quarter-end risk

The super guarantee rate for 2025–26 is 12%, following the increase from 1 July 2025. In April 2026, businesses should confirm that super has been calculated correctly at 12% for the full year to date and that payments are being made on time.

Remember, the March 2026 quarter super guarantee deadline is 28 April 2026. That makes April a key month to review both STP data and super payment compliance together.

7. Identify owner-managed business payroll anomalies

Director wages, shareholder salaries and family member payroll often create year-end reporting issues. Review whether amounts have been processed consistently and whether any ad hoc transfers or drawings need to be reclassified before finalisation.

Which clients are highest risk right now?

Not every employer needs the same level of review. In April 2026, the highest-risk clients typically include:

• businesses that changed payroll software during the year
• employers with high staff turnover
• hospitality, construction and retail businesses with variable hours and allowances
• family groups with related-party employees
• clients with overdue or catch-up bookkeeping
• businesses that process manual journals through payroll accounts
• clients who have had BAS amendments during the year

These are the clients most likely to face STP finalisation delays, BAS mismatches or super reconciliation issues in July if no action is taken now.

A practical workflow for accounting firms in April, May and June 2026

April: run diagnostics

• extract year-to-date payroll reports
• reconcile payroll to ledger and BAS
• review employee master data
• flag super guarantee issues before 28 April
• identify clients needing payroll remediation

May: correct setup and historical errors

• fix payroll item mapping
• clean duplicate employee records
• process corrections where software allows
• review terminations and leave categories
• document any BAS impacts from payroll corrections

June: lock in finalisation readiness

• confirm final pay runs are being coded correctly
• review bonuses, director payments and leave cash-outs
• check that super accruals and payments align
• prepare a client checklist for July finalisation declarations

This staged approach spreads the workload and reduces the risk of year-end bottlenecks.

Common STP mistakes still showing up in small business payroll

Even with STP now well established, several issues continue to appear across Australian small businesses:

• Gross-up errors: reimbursements or allowances included in ordinary wages
• PAYG withholding mismatches: payroll reports not matching BAS labels
• Super under-calculation: especially where software settings were not updated to 12%
• Terminated employees left active: causing confusion in year-to-date totals
• Closely held payee inconsistencies: irregular reporting without proper review
• Manual bookkeeping overrides: ledger adjusted without corresponding payroll correction

These are not just technical issues. They affect employee tax outcomes, employer compliance and the efficiency of year-end accounting work.

How this links to broader ATO compliance in 2026

STP data does not sit in isolation. The ATO increasingly cross-checks payroll information against BAS, super data, income tax returns and other employer reporting. That means payroll errors can have broader consequences, including:

• employee income statement discrepancies
• questions around PAYG withholding reporting
• super guarantee review risk
• friction during year-end tax return preparation
• additional amendment work for agents and bookkeepers

For that reason, April 2026 payroll reviews are not just about software housekeeping. They are part of a wider compliance control process.

How accountants can make STP cleanup more efficient

For firms dealing with incomplete records, the real bottleneck is often not payroll software itself but the underlying bookkeeping quality. If bank transactions are unreconciled, wage clearing accounts are messy or source documents are missing, payroll reviews take much longer.

This is where workflow and data recovery tools can help. For example, Fedix MyLedger is useful for firms inheriting messy books or catch-up clients because it can turn bank statements, including PDFs and scans, into reconciled financial data much faster than manual cleanup. That makes it easier to identify wage payments, reconcile payroll-related accounts and prepare reliable working papers before STP finalisation season.

For practices handling multiple employer clients, tools that centralise compliance work can also reduce admin around deadlines and document collection. The key point is not the software itself; it is getting the underlying records accurate early enough to act.

As Sydney CPA Sam Malla put it: “Three days of catch-up work, billed for two hours. Now we're profitable on those jobs.” That is particularly relevant for April payroll remediation work, where messy records can otherwise consume disproportionate time.

Action steps to take this week

If you are an accountant, bookkeeper or business owner, these are the most practical next steps for April 2026:

1. Run a payroll year-to-date summary for 1 July 2025 to current date.
2. Reconcile wages, PAYG withholding and super to the ledger.
3. Compare payroll figures to BAS lodged so far this year.
4. Check that super is being calculated at 12%.
5. Review all terminated employees and final payments.
6. Fix payroll category mapping before the final quarter is processed.
7. Prioritise high-risk clients for a May remediation plan.
8. Make sure March quarter super is paid by 28 April 2026.

Final thoughts

In April 2026, one of the most relevant and timely compliance priorities in Australian accounting is not just lodging the next form on time. It is making sure STP data is clean before year-end pressure hits.

Firms that start now can reduce July amendment work, improve BAS and payroll accuracy, and give clients a much smoother path into EOFY compliance. For small businesses, an April payroll review can prevent employee tax issues, super mistakes and unnecessary ATO attention later.

If you are cleaning up incomplete books as part of that process, tools like Fedix can help accelerate reconciliation and working paper preparation so payroll reviews are based on reliable data. Learn more at fedix.ai.

Disclaimer: This article is for general informational purposes only and does not constitute professional financial or tax advice. Always consult a qualified accountant or tax professional for advice specific to your situation. Fedix.ai provides tools to assist accounting professionals but does not replace professional judgement.