There are four models for managing the back-office of an Australian small business. Each has genuine advantages and genuine limitations. The right choice depends on your business size, complexity, growth trajectory, and personal preferences — not on any provider’s marketing.
This guide is designed to help you evaluate all four options honestly, including the one we offer. If you finish reading and conclude that a different model is right for your business, this guide has done its job.
How it works: The owner handles bookkeeping, payroll, and IT personally, with an accountant for year-end compliance.
Best for: Sole traders and businesses with fewer than 5 employees, simple Award coverage, and an owner who has the time and competence to maintain accurate records.
Advantages: Lowest direct cost. Maximum personal visibility. No provider management overhead. Immediate access to all financial data.
Limitations: No quality assurance (the person doing the work is the only person reviewing it). Significant time commitment (typically 8–15 hours per week). Competence ceiling (the owner may not have current knowledge of Award changes, tax law, or cybersecurity). Single point of failure (if the owner is sick or unavailable, the back-office stops).
When to move on: When the time cost exceeds 10 hours per week, when the business reaches 5–10 employees, when Award complexity increases, or when the owner recognises their competence in a specific domain (typically IT or HR) is insufficient.
How it works: Separate providers for each function — a bookkeeper, a payroll bureau, an IT company, an accountant, and possibly an HR consultant.
Best for: Businesses with 5–20 employees where the operational complexity justifies specialist help but the coordination overhead is still manageable.
Advantages: Each provider is a specialist in their domain. Costs are modular (you can add or remove providers as needs change). Provider quality can be assessed independently.
Limitations: No cross-domain visibility (the bookkeeper does not see the payroll data; the IT company does not see the HR needs). Coordination falls to the owner or an office manager. Information silos create blind spots. The owner becomes the integration layer — the most expensive coordination role in the business. Provider quality is inconsistent (a great bookkeeper paired with a mediocre payroll provider creates gaps).
When to move on: When the coordination overhead exceeds 6–8 hours per week, when the business reaches 15–20 employees, when cross-domain issues start falling through the cracks (e.g., a new hire’s IT setup is delayed because nobody told the IT company), or when the owner recognises they are spending more time managing providers than the providers are saving them.
How it works: Hire an office manager, operations manager, or finance manager to manage the back-office internally. May retain some external providers for specialist functions.
Best for: Businesses with 20–50+ employees where the volume and complexity justify a dedicated internal resource, and where the owner can recruit and retain a high-quality candidate.
Advantages: Dedicated focus on the business. Deep institutional knowledge over time. Available full-time. Can manage provider relationships professionally.
Limitations: Recruitment risk (the role requires a rare combination of finance, compliance, IT, and operational skills). Retention risk (good operations people are in high demand). Single point of failure (if this person leaves, the business faces the scenario described in our earlier article). Cost ($70,000–$120,000+ for a capable operations manager, before super and on-costs). Competence ceiling (one person cannot be an expert in finance, payroll, HR, IT, and compliance simultaneously).
When to move on: When the business needs specialist capability across multiple domains that no single hire can provide, when the single-point-of-failure risk becomes unacceptable, or when the cost of a single capable hire approaches the cost of a more comprehensive external solution.
How it works: A single external provider manages finance, people, and operations as an integrated service. The business works with a dedicated point of contact who coordinates specialist resources behind the scenes.
Best for: Businesses with 10–80+ employees that need integrated, senior-level back-office capability without building an internal team. Particularly effective for multi-site businesses, regulated industries, and businesses in growth phases where the back-office needs to scale faster than internal hiring allows.
Advantages: Cross-domain visibility (the team sees how finance, people, and operations interact). No coordination overhead for the owner. Continuity (the provider’s capability does not depend on any single person). Access to specialist expertise across all functions. Scalable without internal hiring.
Limitations: Higher monthly cost than DIY or individual providers (though often lower than the total cost of Model 2 when hidden costs are included). Requires the owner to trust an external team with operational access. Less direct control over how tasks are performed. Provider quality and cultural fit are critical — a poor fit is worse than a good patchwork.
When this is the wrong choice: When the business has very simple needs (fewer than 5 employees, single Award, no IT complexity). When the owner has an excellent internal operations person and does not need external capability. When the owner is not willing to shift from doing to overseeing. When the monthly cost is genuinely unaffordable relative to the business’s current revenue.
The right model is not the most sophisticated one. It is the one that matches your business’s current size, complexity, and growth trajectory — while giving you room to grow into the next stage without a crisis.
If you are currently operating Model 2 (multiple providers) and spending more than 8 hours per week on coordination, the architecture has probably reached its limit. Whether the answer is Model 3 (internal hire) or Model 4 (integrated provider) depends on your specific circumstances, your budget, and your preference for building internally vs engaging externally.
Either way, the decision should be made on complete information — including the hidden costs of your current setup, which are almost certainly larger than you think.
Whatever you decide, it should be a decision. Not a default.