There’s a moment every AP leader knows. You’ve just closed the books, your team is exhausted, and someone in the room says: “What if we just outsourced this?” Hand the invoices to a third party, let them worry about scanning and coding and chasing approvals, and get your evenings back.
It’s not a dumb idea. It’s actually a pretty reasonable one, and if you’re the person considering it right now, you’re not wrong to think about it. Hiring is hard. Training AP staff takes months. Watching your team drown in paper while you’re too short-staffed to fix it is a real problem that deserves a real answer.
Here’s the catch, though. Outsourcing doesn’t fix that problem. It moves it somewhere you can’t see anymore, and you pay a premium for the privilege of not looking at it.
The Sticker Price Isn’t the Real Price
Outsourced AP services are usually priced as a flat monthly fee, and that fee can look manageable next to the cost of hiring another full-time employee. But run the comparison against what automation actually costs and the picture changes fast.
What Outsourcing Actually Costs
A typical outsourced AP arrangement can run several thousand dollars a month once you factor in invoice receipt, scanning, offshore verification, and payment processing as separate line items. Multiply that out over a year, and depending on volume, you’re often looking at a five-figure annual spend before you’ve automated a single thing. Compare that to the real cost of processing an invoice, where automated processing runs $2.50 to $4 per invoice versus $16 to $23 manually. For a mid-size company processing tens of thousands of invoices a year, outsourcing rarely wins that math.
The Costs That Don’t Show Up on the Invoice
The monthly fee is only part of it. Add in the rework cycles when a vendor miscodes an invoice, the delayed approvals because an outside team doesn’t know your organization’s structure, and the internal hours your own staff still spends managing the vendor relationship. Outsourcing doesn’t remove AP work from your plate. It relocates a slice of it, and adds a management layer on top.
Callout: If you’re paying a vendor thousands a month to process invoices, you may already be spending more than it would cost to automate the work in-house, with control included.
You Still Can’t See What’s Happening
This is the part that rarely gets talked about before the contract is signed: outsourcing doesn’t solve the visibility problem. It just relocates it.
Outsourcing Doesn’t Fix the Visibility Problem, It Just Moves It
Before outsourcing, the complaint is usually “we can’t see where invoices get stuck in our own process.” After outsourcing, that complaint doesn’t go away, it just changes shape. Now the process lives behind someone else’s system, and when a vendor tells you “it’s in progress,” you have no easy way to verify what that actually means or how long it’s been sitting there. You’ve traded a paper black box for a vendor-owned black box.
Data Control and Security Exposure
There’s also the question of where your financial data lives once it leaves your building. Vendor and payment information sitting with a third party introduces an extra layer of exposure and an extra party you have to trust with sensitive records. For finance and IT leaders already navigating audit requirements, that’s one more variable to manage, not one less.
Outsourcing Doesn’t Scale With You, It Scales Against You
Outsourcing pricing is typically volume-based, which sounds fair until your invoice count starts climbing.
Volume-Based Pricing Punishes Growth
As transaction volume grows, outsourcing costs tend to grow right alongside it, sometimes faster. Automation works the opposite way. Once the system is in place, processing a few thousand more invoices a year adds very little incremental cost, since the software is doing the heavy lifting rather than a team billing by volume.
You’re Locked Into Someone Else’s SLA, Not Your Own Priorities
There’s also a control problem hiding in plain sight. When your outsourced vendor has a staffing gap or hits their own busy season, that becomes your problem too, often right when you can least afford it, like month-end close. You’re operating on someone else’s timeline for work that’s core to your own operations.
What Wood-Mizer Did Instead
Wood-Mizer, a global manufacturer of portable sawmills processing roughly 60,000 invoices a year, lived through exactly this pattern.
The Decision Point
In 2021, Wood-Mizer moved AP processing to an outsourced platform, SAP Concur Invoice, at a cost of $4,300 a month. The service handled invoice receipt, scanning, offshore verification, and payment. It looked complete on paper. In practice, the platform was rigid, exception handling had to be managed manually anyway, and integration with their ERP system was limited enough that staff were still doing manual updates to keep records in sync, the same generic-tool mismatch we cover in Our ERP Has a Module for That. By January 2024, the cost and inflexibility had become hard to justify.
The Result
Wood-Mizer brought AP processing back in-house, this time built on automation rather than outsourced labor. They redeployed a document management platform they already used elsewhere in the business, built custom workflows for data extraction, PO matching, and exception handling, and fully integrated it with their ERP system. The result was a 96% efficiency rate in AP processing and the elimination of that $4,300 monthly outsourcing cost entirely, a $51,600 annual expense that simply disappeared from the budget.
“I really can’t stress how happy we are with the whole transition; working far better than we could have ever imagined. We’re probably at least at a 96% efficiency or greater.” — Jenni Miller, AR/AP Accounting Supervisor, Wood-Mizer
Addressing the Counterargument Directly
The obvious pushback here is staffing. If a company outsourced because they didn’t have the hands to process invoices in-house, how does bringing it back in-house make sense? Wood-Mizer didn’t solve their volume problem by adding headcount. They solved it with automation that let their existing team handle enterprise-level volume without the outsourcing markup. The staffing gap that made outsourcing look necessary in the first place is precisely the problem automation is built to close.
The Bottom Line on Outsourcing vs. Automation
Outsourcing isn’t a bad instinct. It comes from a real place, being short-staffed and overwhelmed and looking for relief. But it treats the symptom without touching the cause. You still can’t see your process. You still don’t fully control it. And you’re often paying more for that arrangement than automation would cost.
Automation gets you the relief outsourcing promises, minus the tradeoffs. You keep your data, your customization, and your visibility into the work, and in Wood-Mizer’s case, control of their process and a meaningful chunk of budget besides.
If your team has been circling the “let’s just outsource it” conversation, it’s worth running the numbers first. What would automation actually cost compared to outsourcing, and what would you get back that outsourcing never offered in the first place?
Ready to see what that looks like for your organization? Read the full Wood-Mizer case study or schedule a consultation to calculate your own outsourcing-versus-automation cost comparison.
Still working through the internal pushback that comes with any process change? We covered that ground in Overcoming Automation Resistance.
