Free · two-minute assessment
AP automation ROI calculator.
See what AP automation could save you.
A savings figure alone isn’t a business case. Our AP automation assessment looks at your invoice volume, current process and accounting system to estimate where automation could save time and reduce processing costs.
- An honest check of whether AP automation fits your current process
- A tailored ROI estimate based on your invoice volume and workload
- A shareable report with potential savings, priorities and next steps
Received.Re-keyed.Re-chased.Repeated next month.
Manual accounts payable rarely looks expensive as one task at a time. A few minutes entering an invoice. A message to an approver. A correction before posting.
Multiply those small tasks by every invoice, every approver and every month, and the real cost becomes much larger than data entry alone. A useful ROI calculation should map the whole accounts payable process, not just the time spent typing.
of supplier invoices become exceptions that need manual investigation before they can be paid.
Ardent Partners, State of ePayables 2025average time to process a single supplier invoice from receipt to approval.
Ardent Partners, State of ePayables 2025The practical difference
What does AP automation actually change?
AP automation improves more than the way invoices are processed. With Zahara, the process can start before an invoice arrives, giving finance teams control over purchasing, approvals and committed spend as part of one purchase-to-pay process.
A purchase request is raised and routed for approval based on your organisation’s rules. Once approved, a purchase order can be created and sent to the supplier, creating a clear record of what was requested, approved and ordered.
When the supplier invoice arrives, Zahara captures the invoice data and checks it against the purchase order. Differences in quantities, prices or other details can be flagged for review, while invoices that meet your rules move through the appropriate invoice approval workflow.
Once approved, the invoice data can be posted to your accounting system. Instead of finance manually moving information between emails, spreadsheets, purchase orders and invoices, Zahara connects the process from purchase request to invoice approval and posting.
That matters for ROI because the time saved through accounts payable automation isn’t limited to invoice entry. It can also reduce manual approval chasing, PO matching, duplicate checks, coding, exception handling and the administration surrounding every purchase.
Request
Purchase requests start in Zahara
Capture what is being bought, from whom and which budget, department or project it relates to.
Approve
Spend is approved before it’s committed
Approval rules route requests to the right people based on value, department, project or other criteria.
Purchase order
Approved requests become POs
Create and send purchase orders while keeping a record of what was authorised.
Invoice & match
Invoices are captured and matched
Invoice data is captured automatically and checked against the corresponding purchase order.
Approve & post
Exceptions are reviewed, then posted
Invoices follow the appropriate approval workflow before approved data is sent to your accounting system.
What information do you need to calculate AP automation ROI?
To estimate the potential ROI of AP automation, you need a clear picture of how purchasing and invoice processing work today.
That means looking beyond the time spent entering invoice data. Approvals, purchase orders, manual hand-offs and exceptions can all add to the true cost of your accounts payable process.
Exact figures aren’t essential. A good estimate of the following will give you a useful starting point for calculating your potential savings.
Know these numbers? You’re ready to calculate your ROI.Calculate your AP automation ROIPurchase order volume
If you use purchase orders, roughly how many does your team raise each month? This helps account for the work that happens before an invoice arrives.
Invoice volume
Roughly how many supplier invoices does your team process each month? Even small manual tasks add up as invoice volumes grow.
Processing time
Think about the full process, from raising POs and entering invoice data to matching, coding, chasing approvals and posting to your accounting system.
People involved
Consider how many people typically touch a purchase or invoice, including finance, budget holders, buyers, approvers and anyone resolving exceptions.
Errors & exceptions
Estimate how often your team deals with missing POs, mismatches, duplicates, incorrect coding or other issues that require manual investigation.
Free · two-minute assessment
Your AP automation fit & ROI
Answer a few questions about your AP process to see whether Zahara fits and what automation could save.
- Honest fit check — we tell you if Zahara is the right AP automation for your team, not just give you a sales pitch.
- Estimated annual saving — based on your invoice volume, team size and region (GBP, USD or AUD).
- Priorities ranked by impact — approvals, purchase orders, fraud control and reporting, tailored to your answers.
- Accounting system check — Xero, Sage 50, Sage 200, Sage Intacct, QuickBooks Online, Business Central and MYOB.
Your report dashboard opens as soon as the quiz is complete. Download the detail or share the direct link so colleagues can view the same result.
Estimates compare your current invoice volume, handling time and error exposure with an automated process. Results are illustrative planning figures, not a guarantee of financial performance.
FAQs
AP automation ROI questions, answered
An AP automation ROI calculator estimates the time and processing cost that could be recovered by automating supplier invoice capture, validation, approval and posting. This calculator also checks compatibility and readiness, because a large theoretical saving is not useful if the process or software is a poor fit.
AP automation is usually most valuable when invoices are re-keyed manually, approvals need chasing, purchase orders are hard to match, or finance lacks visibility. The assessment checks those signals alongside your accounting system and invoice volume so the answer is specific to your process.
The estimate uses your monthly invoice volume, current process maturity, team size and selected pain points. It models the labour and error cost of the current process against an automated baseline. The report lets you fine-tune key assumptions, and the result remains an indicative planning estimate rather than a guarantee.
Add the time spent receiving, entering, coding, approving, correcting and posting invoices, then multiply those hours by the relevant employment cost. Add measurable error, storage and exception costs, and divide the monthly total by the number of invoices processed. Looking only at data-entry time usually understates the real cost.
Your report includes a fit assessment, estimated monthly and annual savings, hours potentially recovered, current cost per invoice, a recommended Zahara plan and tailored insights based on your priorities.
Most people finish in under two minutes. There are four short stages covering your team, current invoice process, pain points and main objective.
Yes. The assessment and personalised report are free, and you do not need to create an account to see your result.
Yes. The compatibility check includes Xero, Sage 50, Sage 200, Sage Intacct, QuickBooks Online, Microsoft Dynamics 365 Business Central and MYOB, with an option for other accounting systems. Your selected system is carried into the report so the recommendation is relevant to your setup.
The aim is to remove repetitive handling, not financial judgement. Automation captures data, applies agreed rules, sends reminders and completes routine checks. Finance teams still own exceptions, controls, supplier relationships and the decisions that need context.