In-House Payroll vs Outsourced Payroll: Which Is Right for Your Business?

In-house payroll keeps payroll processing inside the business using software and staff time, while outsourcing payroll means engaging a bookkeeper, BAS agent or payroll provider to handle some or all of the processing, compliance checks and reporting for a recurring fee.

The right choice usually comes down to three things: how many people you employ, how complicated their pay arrangements are, and whether someone in the business has the time and knowledge to manage payroll properly. If you’re deciding whether to outsource, it also helps to look at what you’re actually handing over, how much oversight you want to retain, and whether the provider’s service matches the complexity of your payroll.

This article contains general information only and isn’t personal financial or workplace relations advice. Every business is different, so speak with a registered BAS agent, your accountant or the Fair Work Ombudsman about your specific situation.

Key takeaways:

• In-house payroll is often genuinely cheaper for one or two employees on a single, well-understood award — the comparison shifts once multiple awards, casual mixes or frequent staffing changes enter the picture.
• Since 1 July 2026, Payday Super requires super guarantee contributions to reach an employee’s fund within 7 business days of each payday, which raises the compliance workload of in-house payroll more than most owners expect.
• Outsourcing doesn’t transfer legal responsibility — the employer is still accountable for paying staff correctly, even when a provider handles the processing.
• Payroll records need to be kept for 7 years under the Fair Work Act, regardless of who processes payroll day to day.
• The real cost comparison isn’t software subscription vs provider fee — it’s total time spent plus error risk vs a fixed monthly cost.
• Switching models mid-year is possible but works best at a pay cycle boundary, with STP year-to-date figures handed over cleanly.

In-house vs outsourced payroll, at a glance

• In-house tends to work for one or two employees on a single, well-understood award, where someone has consistent time and confidence to keep the setup current.
• Outsourcing tends to pay off once multiple awards, a mix of employment types, or frequent staffing changes make the compliance workload harder to stay on top of — Payday Super has pulled this tipping point earlier for some businesses.
• Either way, the employer stays legally responsible for correct pay. Outsourcing shifts the workload, not the obligation.

What is in-house payroll?

In-house payroll means someone inside the business — usually the owner, an office manager or a dedicated payroll staff member — manages payroll internally using accounting or payroll software such as Xero Payroll, MYOB or a standalone system.

The business owns the process end to end: award interpretation, pay rate setup, STP reporting, superannuation calculations and record-keeping all sit with whoever is responsible for payroll internally.

This works well when the setup is simple and stable. It becomes harder to sustain once awards, classifications or staffing arrangements start changing more often than the person doing payroll has time to track.

What is outsourced payroll?

Outsourced payroll means engaging an external provider to handle some or all of the work involved in paying employees. Depending on the arrangement, that may include processing pay runs, STP reporting, superannuation payments, payroll record-keeping and ongoing compliance checks.

Outsourcing payroll covers a spectrum rather than one standard service. At one end, a bookkeeper or BAS agent may process pay runs as part of a broader bookkeeping engagement. At the other, a dedicated payroll bureau or provider may handle processing, STP lodgement, super payments and compliance monitoring as its core service.

Some businesses outsource everything, while others keep pay rate decisions and final approval in-house and outsource the processing and compliance work around them. It’s worth clarifying upfront exactly what’s included, because “outsourced payroll” can mean anything from basic processing to much broader payroll support.

Cost: what each option actually costs

In-house payroll’s visible cost is usually just a software subscription, which makes it look cheaper than an outsourced provider’s monthly fee. That comparison leaves out the biggest hidden cost: time. Every pay run can involve checking timesheets, calculating overtime and allowances, reconciling super and keeping up with award changes. Even when that time doesn’t show up on an invoice, it still costs the business.

For a single employee on one straightforward award, in-house is often genuinely the cheaper option once time is factored in reasonably. As complexity grows, the time cost of staying accurate in-house tends to grow faster than a provider’s fee does.

Time: how much payroll actually takes

Payroll time isn’t just the minutes spent clicking “process pay run.” It includes checking timesheets against pay slips, resolving discrepancies, keeping award and classification setups current after pay rises or role changes, reconciling superannuation guarantee (SG) against ordinary time earnings (OTE) each pay period, and handling one-off events like leave requests, terminations or new starters. Businesses that outsource are typically outsourcing this surrounding workload, not just the pay run itself.

Compliance risk: what’s actually at stake

Payroll compliance sits across several overlapping obligations: correct award and classification application, Single Touch Payroll reporting, superannuation guarantee payments, and Fair Work record-keeping requirements including pay slips issued within one working day of payment and time and wage records kept for 7 years.

A payroll mistake rarely stays small. If a pay rate or classification is wrong, the error can keep repeating every pay cycle until someone notices it — at which point it becomes a back-payment exercise rather than a quick fix. The general position if an underpayment is discovered is that the employee needs to be back paid in full, regardless of whether the error was processed in-house or through a provider.

How Payday Super changes the compliance workload

Since 1 July 2026, Payday Super requires SG contributions to be paid each payday rather than quarterly, with the payment needing to reach the employee’s super fund within 7 business days after payday (20 business days for a new employee’s first contribution). This changes super from a quarterly task into something that needs managing every pay cycle. For businesses running payroll in-house, that means more frequent checks and less room for delays — a process built around quarterly deadlines needs an active review to work under a payday deadline instead.

This shift is a large part of why some businesses that were comfortable running payroll in-house are now reconsidering the arrangement — it’s less about a single new rule and more about super compliance simply needing attention far more often than it used to.

Control and visibility: what changes when you outsource

Outsourcing payroll doesn’t mean handing over control of pay decisions. The business still sets pay rates, approves leave, makes hiring and termination decisions, and typically signs off on each pay run before it’s finalised. What changes is who does the processing, the award and classification checking, and the ongoing compliance monitoring in between.

Some business owners are hesitant to outsource because they associate it with losing visibility into their own payroll. A good provider shouldn’t reduce that visibility — the business should still receive reports, approve each pay run, and be able to see how wages, leave and super have been calculated.

Continuity: what happens if the person running payroll is unavailable

One common risk with in-house payroll is that all the knowledge sits with one person. Payroll can be run reliably for years by that one person, until they’re unexpectedly unavailable — leave, illness, or they leave the business — right before a pay run is due. In-house payroll concentrates knowledge in one person more often than businesses realise until that person isn’t there. Outsourced payroll spreads that knowledge across a provider’s team, so continuity doesn’t depend on one individual’s availability.

Scalability: when in-house stops being manageable

In-house payroll can work well while the team is small and the setup is stable. It becomes harder once the business adds a second award (common when it expands into hospitality, retail or a different function), moves to a mix of full-time, part-time and casual staff, or simply grows its headcount to the point where checking every pay slip properly takes longer than anyone budgeted for.

Modern awards are national, so the trigger isn’t geography — a business with staff in one Melbourne location and one with staff across several states face the same underlying complexity. What matters is how many distinct awards or classifications actually apply, since that’s what drives the checking workload up.

What to consider when outsourcing payroll

If you’re thinking about outsourcing payroll, don’t compare providers on price alone. The more important question is whether the service removes the parts of payroll that are taking up time or creating risk in your business.

Some of the main things to consider when outsourcing payroll are:

• What’s included in the service: Does the provider only process pay runs, or do they also handle STP reporting, superannuation, award and classification checks, onboarding, terminations and payroll queries?
• Who checks awards and pay rates: Confirm whether the provider reviews your payroll setup for compliance or simply processes the information you give them.
• How approvals work: You should still have visibility over payroll and a clear process for reviewing and approving each pay run before it is finalised.
• How changes are communicated: New starters, leave, pay rises, roster changes and terminations all need to reach the payroll provider accurately and on time.
• What happens when something goes wrong: Ask how payroll errors, corrections and historical underpayments are handled and who is responsible for investigating them.
• How your data is managed: Payroll contains sensitive employee information, so understand how records are stored, accessed and transferred.
• Whether the service can scale with you: A provider that works well for three employees should also have a clear process for handling additional employees, awards or employment types as the business grows.

The right provider should reduce the administrative and compliance workload without taking away the business’s visibility or final control over payroll decisions.

A practical decision framework

None of these factors is decisive alone. A business with a single employee but a history of payroll errors may still benefit from outsourcing, just as a slightly larger team with a confident, experienced person running payroll might comfortably stay in-house.

Common mistakes when switching between models

• Switching mid-pay-cycle instead of at a cycle boundary, which can create reconciliation gaps in STP reporting.
• Not handing over STP year-to-date figures cleanly, leading to duplicated or missing amounts reported to the ATO.
• Assuming outsourcing removes the need for any internal oversight — someone in the business still needs to approve pay runs and flag changes like new starters or role changes.
• Choosing a provider without confirming what’s actually included — “payroll service” can mean very different scopes between providers.
• Moving to outsourced payroll without correcting a known in-house error first, rather than confirming it needs to be corrected as part of the transition rather than left as a loose end.

Getting help deciding

If you’re weighing this decision, our payroll services page covers what CPA-led payroll support actually includes for Melbourne small businesses. If you’re staying in-house for now but want to tighten up the process, our guide on reducing payroll errors covers the checklist worth running every pay cycle either way.

Official resources

• Pay slips — Fair Work Ombudsman
• Record-keeping — Fair Work Ombudsman
• I think I’ve underpaid my employee — Fair Work Ombudsman
• About Payday Super — ATO
• Payment deadlines for Payday Super — ATO
• Single Touch Payroll — ATO