Comparing small business accounting software means evaluating platforms on ledger features, GST compliance, and integration capability. Most evaluation guides stop there. The invoice workflow software guide covers the workflow layer that evaluation checklists typically miss. What they miss is the layer that matters most once a second person needs to authorise a payment: the approval workflow structure beneath the platform, and whether it can actually enforce who approves what, at what value, and under what conditions. When you compare small business accounting software for a business that has outgrown a single-signatory model, approval chain depth, audit trail integrity, and exception flagging are not optional extras. They are the core evaluation criteria.
What changes when a second approver enters the picture?
A single-signatory AP workflow is simple by design. One person reviews the invoice, approves it, and the payment is made. The control is the person. When a business adds a second signatory, the process becomes a workflow: invoices need to reach the right person in the right sequence, with the right information, before payment is released.
This is where Xero, MYOB, and QuickBooks start to diverge - not in their core ledger capability, but in how well their approval structures actually hold.
| Platform | Native Approval Capability | Threshold Enforcement | Audit Trail Quality | Escalation / Delegation |
|---|---|---|---|---|
| Xero | Basic approval routing via user roles | No native threshold rules | Timestamped status changes, but no decision record | Manual via user permissions |
| MYOB | Role-based bill approval; purchase approval workflow | Limited; requires external tool for value-based routing | Approval log per transaction | Manual delegation config required |
| QuickBooks Online | Approval workflow for bills (AU version limited) | No threshold logic natively | Basic approval activity log | Limited; minimal delegation support |
| Dedicated AP platform (e.g., Pulsify) | Multi-level, threshold-enforced approval chains | Configurable value thresholds per approver level | Full chain from intake to posting | Delegation rules built into workflow |
The table above reflects capability at the platform level. In practice, any of these platforms can be extended with third-party tools. The question for evaluation is: what does the base platform give you, and what will you need to add?
What Accounting Software Should Actually Do for Multi-Signatory Approvals
Most platforms manage the mechanics of approval routing. Fewer manage the conditions around that routing. The difference between a workflow that routes invoices and one that controls them is the difference between a tool that moves invoices forward and one that stops the wrong invoices from moving at all.
Genuine multi-signatory AP control requires the platform to handle:
Threshold-based routing. An invoice below a certain value routes to one approver. Above that threshold, it routes to a second. Most native accounting platform approval setups do not enforce this logic automatically. A financial controller at a Brisbane wholesale distributor managing 200 invoices a month cannot manually check every invoice against a delegation schedule. The system needs to apply the rules.
Sequential and parallel chains. Some approval structures require sign-off in a specific order, because the manager’s approval must precede the director’s. Others allow parallel approval, where two people can review simultaneously. Knowing which structure your business needs before evaluating platforms saves significant configuration time.
Delegation and leave coverage. When an approver is travelling or on leave, invoices should route to a nominated delegate, not sit in a queue until the primary approver returns. This is a basic operational requirement that several platforms handle poorly at the native level.
Exception flagging before the approval queue. Businesses concerned about this control gap should review the guide to accounts payable fraud vulnerability for context on what is at stake. If an invoice arrives with a changed bank account number, a failed ABN check, or a line item that doesn’t match the linked purchase order, the approval workflow should flag it before routing, not route it to an approver who has no reason to suspect a problem.
What is the approval workflow gap in Xero and MYOB?
Xero is the dominant accounting platform for Australian SMBs, and it handles the ledger well. What it does not do natively is enforce approval hierarchies based on invoice values, apply threshold-based routing, or maintain a detailed decision record showing who made each approval call and why.
Businesses configuring Xero for multi-approver workflows typically hit the same three limits:
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Xero’s user roles control who can approve bills, but there is no native logic that routes a $50,000 invoice to a different approver than a $2,000 invoice. That logic lives in a process document, not the system.
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The approval record in Xero shows that a bill was approved. It does not capture the reasoning, the delegation basis, or whether the approver reviewed supporting documentation.
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When a delegate needs to approve on behalf of someone absent, Xero has no delegation mechanism. The workaround is either changing user permissions temporarily, which creates audit exposure, or having the absent approver log in remotely.
MYOB is often the preference for wholesale and distribution businesses because of its inventory module, and its native purchase approval workflow is somewhat more structured than Xero’s. But the same gap exists on threshold enforcement: MYOB does not route invoices to different approvers based on value unless that logic is built manually into the workflow design or supported by an additional tool.
Both platforms are well-designed accounting ledgers. Neither was designed to be an AP control layer.
The Dext and ApprovalMax Stack
Many Australian businesses that have tried to close the gap end up combining Dext for invoice capture and ApprovalMax for approval control. This is a functional approach, but it introduces its own evaluation considerations.
Dext handles OCR extraction well. For businesses with straightforward invoices, it does the capture job reliably. Its weakness is industrial line-item complexity: a subcontractor invoice covering labour, materials, and equipment hire across three cost centres is not what Dext’s extraction engine was built for.
ApprovalMax is purpose-built for multi-level approval control and does it well. It handles threshold routing, approval chains, delegation, and audit trails more robustly than either Xero or MYOB natively. If the primary problem is approval visibility and routing, ApprovalMax addresses it directly.
The issue with the two-tool stack is the gap between them. Supplier coding decisions made in Dext do not automatically carry context into ApprovalMax. If a supplier’s bank details change and that change is captured in Dext, ApprovalMax does not have native logic to flag that change as a risk signal in the approval queue. The approver sees a clean invoice. The validation that should have happened upstream didn’t happen in either tool, because each was designed for a different part of the workflow.
The additional subscription cost matters too. Running Dext, ApprovalMax, and Xero or MYOB as three separate platforms is a meaningful line item for a business processing 100-300 invoices per month.
What Multi-Signatory Businesses Should Actually Ask Vendors
When comparing accounting platforms or AP tools for a business that has moved beyond a single approver, the evaluation questions need to be specific. Generic demonstrations will show the best-case path. These questions surface the edge cases.
- Does the platform enforce approval thresholds at the system level, or does threshold routing depend on manual compliance with a policy document?
- Can the system support multiple approval levels, where different values route to different approvers in a defined sequence?
- What does the audit trail capture: only approval status, or the identity of the approver, the timestamp, and any override or delegation event?
- If an approver is absent, how does the platform handle delegation? Is it a built-in workflow feature, or does it require changing user permissions?
- Does exception flagging occur before invoices enter the approval queue, or are exceptions surfaced to the approver inside the queue?
- If a supplier’s bank details change on an incoming invoice, does the platform flag that change automatically before the invoice reaches an approver?
- How are override decisions recorded when an approver bypasses a flag or exception? Is there a required comment or reason field?
- Can approval thresholds be set differently for different suppliers, cost centres, or entities?
These questions are worth asking before the demonstration, not after. A vendor who can answer them specifically and show the functionality in a live workflow is worth more attention than one who answers in generalities.
The Upgrade Trigger: When Single-Signatory Models Stop Working
There are specific operational signals that indicate a business has outgrown its existing approval setup, usually before anyone has formally decided it needs to change.
The first signal is informal escalation. When the existing approver starts forwarding invoices to a second person by email and waiting for a reply before approving, the business has already created a two-approver process. It just isn’t structured in the system, so it creates no audit trail.
The second is approval delays. When invoices sit in a queue because the single approver is travelling, in meetings, or simply overloaded, and payment terms are missed as a result, the approval workflow is already a bottleneck. That bottleneck gets worse, not better, as invoice volumes grow.
The third is a near-miss. Bank account change fraud cost Australian businesses AU$152.6 million in 2024, according to the National Anti-Scam Centre, a 66% increase from the prior year. For most businesses, the near-miss arrives before the actual loss: an invoice with changed bank details that was approved and almost paid before someone noticed. That moment is the point at which the approval workflow gets redesigned, not because it was planned but because it had to be.
The fourth is scale. When a business moves from 20 invoices per week to 80, the manual judgement that a single approver applies to every invoice becomes a liability. The person reviewing 80 invoices per week is not reviewing each with the same attention as one reviewing 20. The control degrades at volume even if the process stays the same.
Evaluation Checklist: Comparing Accounting Platforms for Multi-Approver AP
Use this checklist when comparing platforms. These are the criteria that matter specifically for businesses with multiple approvers or significant invoice volume.
Approval structure
- Supports multi-level approval chains (not just one approver)
- Enforces threshold-based routing at the system level, not via policy document
- Handles sequential and parallel approval flows
- Includes delegation logic for leave and absence coverage
Audit trail
- Records approver identity, timestamp, and decision for every approval event
- Captures override and delegation decisions with reason tracking
- Audit log is exportable for external review or audit purpose
- Historical approval records are retained and searchable
Exception flagging
- Detects changed supplier bank details automatically before approval routing
- Flags duplicate invoices before they reach the ledger
- Supports purchase order matching at the line-item level
- Surfaces exceptions in a visible queue rather than passing them to approvers silently
Integration and workflow
- Integrates with your existing accounting platform (Xero or MYOB) without complex configuration
- Supplier history and coding decisions are consistent across the full workflow
- Approval logic applies across multiple entities if relevant
- Pricing scales with invoice volume, not with arbitrary entity or user limits
Controls
- Segregation of duties is enforced at the system level: the person who enters an invoice cannot also approve it without a documented exception
- ABN and GST validation occurs before bills are published to the ledger
- Approval thresholds can be configured per supplier category, cost centre, or entity
Who This Fits and Who It Does Not
Not every business needs dedicated multi-level approval tooling. Honest evaluation includes knowing when simpler is better.
| Business situation | What fits |
|---|---|
| Under 20 invoices per week, single approver, no compliance pressure | Xero or MYOB native approvals are likely sufficient |
| 20-80 invoices per week, two approvers, basic threshold needs | ApprovalMax added to Xero or MYOB addresses most of the gap |
| 80+ invoices per week, multiple approvers, industrial line items | A platform that handles capture, coding, validation, and approvals in one workflow reduces the overhead and context loss of a multi-tool stack |
| Multiple entities, different approval structures per entity | Dedicated AP automation with multi-entity support is the appropriate tool |
| Business with complex GST treatment, frequent bank detail changes, or construction subcontractor payments | The control layer matters more than extraction speed; evaluate on validation and exception handling capability first |
Businesses that primarily issue service invoices with low complexity, or very small businesses processing only a few bills per week, do not need to invest in a dedicated AP control platform. The value scales with invoice volume and line-item complexity.
Faster Routing Is Not Stronger Control
There is a tendency, when evaluating multi-signatory AP tools, to frame the problem as a routing problem. More approvers means more routing steps. The evaluation focuses on how many levels each platform supports and how fast invoices move through them.
The more useful framing is a verification problem. Routing determines where an invoice goes. Verification determines whether it should be paid at all.
A multi-level approval workflow that routes invoices through three people without checking supplier details against history, without flagging bank account changes, and without matching against linked purchase orders is not three times more controlled than a single-approver workflow. It is three people reviewing the same unverified information and confirming each other’s assumption that the invoice is legitimate.
The controls that matter in a multi-signatory AP environment are the ones that happen before the approval queue, not inside it. Supplier validation, duplicate invoice detection, and exception flagging are the structural protections. The approval chain is the authorisation layer that sits on top of them.
When comparing accounting software for multi-approver AP, evaluate the control layer first. The approval routing is easier to configure than the verification logic, and it is the verification logic that catches fraud.
Multi-signatory approval workflows only protect what the AP automation layer underneath them has already verified. Getting the control order right is the structural decision that determines whether additional approvers add genuine governance or just additional steps.
The right approval workflow design for a growing Australian business is one where threshold logic, exception flagging, and audit trail capture are configured as system controls, not as process agreements that depend on everyone following the same manual habit every time.
Sources: ACCC - Payment redirection scams · ATO - eInvoicing for business
Further reading: Best AP Automation Software Australia 2026 · Accounts Payable Software Australia: Buyer’s Guide · The Final Decisive Comparison of Invoice Processing Automation Software