What Does Processing Each Supplier Bill Cost?
Supplier bills are the highest-volume task in most bookkeeping firms and the one where the time is least visible. Enter your monthly volume and the minutes each bill takes to capture, code and match, then set the exception rate you expect once AI does the capture. The result is a monthly cost and hours figure for today and for the AI-assisted process.
Count every supplier bill across every client file your team touches. Aggregate figures only, never enter client or supplier data.
Accounts Payable Processing Cost Calculator
Aggregate figures across all client files. Never enter client or supplier data.
Every bill your team captures, codes or matches, across every file.
Time ten bills end to end if you are not sure.
Wage plus superannuation, leave and overheads, or the chargeable rate if the time could be billed.
New suppliers, mismatched amounts, missing references, unusual coding.
Bills multiplied by minutes per bill, at your loaded hourly cost.
An estimate from the figures you entered, not accounting or financial advice. The AI subscription is not deducted; compare the saving with the pricing page. A person approves every bill and every payment run. Enter aggregate operational data only.
Reading the Result
The calculator gives four numbers: what accounts payable costs now, the hours it consumes, what it costs when a person only handles exceptions, and the hours that frees each month.
Current cost is volume times minutes times rate
Bills per month multiplied by minutes per bill gives the hours. Hours multiplied by loaded hourly cost gives the monthly cost. If the number looks large, check the minutes per bill: capture, coding, matching to a purchase order or bank line and filing all count, not just the data entry.
The exception rate drives the AI-assisted cost
With AI capture, a person only touches the bills that need a decision: a new supplier, an unusual amount, a missing purchase order, an ambiguous account code. The share of bills that land in that queue, and the minutes each one takes, set the cost of the new process. You control both inputs.
Hours freed is capacity, not headcount
The hours freed figure is the difference between the two processes. In most firms it becomes capacity to take on more client files or move staff to review and advisory work, rather than a reduction in the team. Use it with the practice capacity calculator to put a chargeable value on it.
How the Numbers Are Built
Four steps using figures from your own timesheets and your accounting software. No benchmarks, no assumptions you did not enter.
Current monthly hours
Supplier bills per month multiplied by minutes per bill, divided by sixty.
Current monthly cost
Current monthly hours multiplied by the loaded hourly cost of the people doing the work.
Hours and cost with AI capture
Bills per month multiplied by the exception rate, multiplied by minutes per exception, divided by sixty, then multiplied by the hourly cost. Approving a clean bill is treated as a click and not counted; raise the exception rate if you want to include it.
Hours freed and monthly saving
Current hours less AI-assisted hours, and current cost less AI-assisted cost. The AI subscription itself is not deducted here; compare the saving against the pricing page.
Where Accounts Payable Time Goes
Four parts of the supplier bill process, and what changes in each when AI handles the capture and a person handles the approval.
Capture and data extraction
Bills arrive by email, in a client portal, as a photo or on paper. Someone opens each one, reads the supplier, date, amount, GST and line items, and keys them into Xero, MYOB or QuickBooks. This is the part AI removes almost entirely: the bill is read, the fields are extracted and a draft transaction is created for review.
- Forwarded email bills and portal uploads both feed the same capture queue
- Multi-page bills and statements need line-level extraction, not just totals
- Duplicate detection at capture prevents double payments downstream
- Every extracted field stays visible for the reviewer to check against the source
Coding and GST treatment
Once the fields are in, the bill needs an account code, a tracking category where the client uses them, and the right GST treatment. AI learns the coding from the file history and the supplier, then proposes it. The person confirms or changes it. Consistent history makes the proposals more accurate, which is why file health matters before automation.
- Coding proposals come from the file history, not a generic model
- GST treatment is proposed per line and confirmed by the reviewer
- New suppliers and new account codes are always routed as exceptions
- Changes the reviewer makes feed back into the next proposal
Matching and approval
Bills need to be matched to purchase orders, delivery dockets or bank lines, and approved by whoever holds authority in the client business. Matching is rules-based and automates well. Approval is a decision, and it stays with a person, but the reminder, the routing and the record of who approved what can all be handled for them.
- Three-way matching where purchase orders exist, two-way where they do not
- Approval routed to the right person with the bill attached, not a chase by email
- Unapproved bills surface on a list rather than sitting in an inbox
- The approval record is kept with the transaction for audit
Exceptions and control
The exception queue is where the real work lives after automation. A good queue is short, sorted by reason and cleared daily. A bad one is a dumping ground. The exception rate you enter above is the figure to track once live, because every point it falls is time returned to the team.
- Sort exceptions by reason so the same fix clears many bills
- Track the exception rate monthly and aim to lower it
- Payment runs are prepared for approval, never released without a person
- Bank details on a supplier record only change with a verified request
Next Steps
Accounts Payable Automation
How bill capture, coding and approval routing works inside your ledger.
See how it works →AI Invoice Processing
The capture and extraction step in detail, including multi-page bills.
Read about capture →Bookkeeping Cost Calculator
Widen the view to all transaction processing, including error correction.
Calculate the cost →Frequently Asked Questions
Time ten bills end to end for one staff member, from opening the email to the transaction being saved, coded and matched. Include the time spent finding the purchase order or the bank line and filing the attachment. Average the ten. Most firms that do this find the figure is higher than the guess they would have given, because the data entry is only part of the work.
Start with your own view of how many bills need a decision today: a new supplier, an amount that does not match the order, a missing reference or an unusual account code. That share does not disappear with AI, it becomes the exception queue. Firms with clean supplier lists and consistent coding history see lower rates than firms automating on top of messy files. Enter a conservative figure first, then lower it as you see the real rate once live.
No. It shows the labour cost of the two processes so you can compare the saving against the plan price on our pricing page for your volume. Keeping the two separate makes the comparison honest: you can see exactly how much of the saving the subscription consumes.
Yes. AI prepares the transaction, a person approves it. For clean bills that approval is a quick check of the proposed coding and amount against the source, which is why the calculator treats it as negligible. Nothing is posted to the ledger or released for payment without that approval. If you want to count review time on clean bills as well, raise the exception rate until the AI-assisted hours match your expectation.
The formulas are ledger-neutral. The automation described on this site works with Xero, MYOB and QuickBooks Online, and the process steps (capture, coding, matching, approval) are the same in each. If a client file is on desktop software or a spreadsheet, the capture step still works but the posting and matching steps need the file moved to a cloud ledger first.
No. Everything is calculated in your browser and nothing is transmitted. Your slider positions are saved in your own browser storage so they are there when you return, and the reset button clears them. Only aggregate operational figures are requested. No client, supplier or transaction data should be entered into this or any similar web tool.
Sources and further reading
- Xero API documentation (Xero)
- MYOB business software (MYOB)
- QuickBooks Online API documentation (Intuit)
Want the Real Exception Rate for Your Files?
Tell us your monthly bill volume and which ledgers your clients are on. We will tell you what the exception queue looks like for files like yours and what the plan would cost against the saving you just calculated.