This guide covers what AP outsourcing includes, the main service models, how pricing works, what you should never hand off, and how outsourcing compares with running AP in-house or with software. A quick note up front: Quick Payable is AP automation software, not an outsourcing firm. We cover both sides so you can pick the right one.
What Is Accounts Payable Outsourcing?
AP outsourcing is a form of business process outsourcing (BPO). Instead of your own staff keying every invoice and chasing every approver, a provider does the agreed tasks under a contract and a set of service levels.
Some companies hand off only data entry. Others hand off almost everything up to payment release. Either way, your company is still responsible for its own books, tax filings, and payments. The provider works under your rules.
How it works day to day
- Vendors send invoices to the provider, usually through a dedicated email address, portal, or mail scanning service.
- The provider captures and checks them, entering the data, matching to POs, and flagging problems.
- Approvals go back to your people. The provider routes invoices and follows up, but your managers approve.
- The provider prepares payments. Your team reviews and releases them, unless the contract says otherwise.
- You get reports on volume, aging, exceptions, and how the provider performed against the agreed service levels.
What AP Outsourcing Services Cover
No two providers include the same things. Use this table to build your scope and to check every quote line by line.
| Service | What it covers | What to confirm |
|---|---|---|
| Invoice intake and capture | Receiving invoices by email, mail, or portal and entering the data | Supported formats, turnaround time, and accuracy rate |
| PO matching | Two-way or three-way matching against POs and receipts | Who sets tolerances and who resolves mismatches |
| Approval follow-up | Routing invoices and chasing approvers | Escalation rules and who has approval authority |
| Vendor onboarding | Collecting W-9s, setting up vendor records, handling updates | How bank detail changes are verified and who approves them |
| Vendor help desk | Answering "where's my payment?" calls and emails | Hours, response times, and language support |
| Payment preparation | Building payment batches by due date | Whether they prepare, approve, or release payments |
| Reconciliation support | Vendor statement reviews and subledger tie-outs | How often, and who signs off |
| 1099 support | Tracking reportable vendor payments for year-end filing | Whether filing is included or billed separately |
| Reporting and month-end | Aging, open items, accrual lists, and SLA reports | Report format, frequency, and system access |
Ask for a written scope of work that lists each task as yours, theirs, or shared. Anything not in writing is a future argument.
Types of AP Outsourcing
The same label can mean very different services. Here's what each term usually covers.
Full-service AP outsourcing. The provider runs most of the AP cycle, from invoice intake to payment prep and reconciliation support. You keep policy, approvals, and payment release. Fits companies that want routine AP off their plate entirely.
Managed AP services. Ongoing support for defined parts of the process, often with the provider's own software and staff. Scope ranges from a single task to most of AP. Fits teams that want steady help without building the capability themselves.
Virtual AP services. Remote staff who work inside your systems on tasks like invoice entry, approval follow-ups, and vendor emails. Closer to added headcount than a full handoff. Fits smaller teams that need extra hands.
Project-based AP support. A short engagement to clear a backlog, clean up vendor records, or get through a system migration. Fits a one-time spike in work.
Shared services center. Not outsourcing at all. A larger company pulls AP from many locations into one internal team. Worth knowing because some companies compare it against outsourcing.
Outsource, Automate, or Both?
Start with the real problem. Outsourcing adds people. Automation removes work. If you don't know which one you need, you'll likely buy the wrong one.
| Factor | In-house | Outsourcing | Automation | Hybrid |
|---|---|---|---|---|
| Who does the work | Your staff | Provider's staff | Software plus your staff | Software, your staff, and a provider |
| Control you keep | Full | Lower, set by contract | Full | High, if roles are clear |
| What it fixes | Nothing on its own | Not enough people | Too much manual work | Both |
| Typical pricing | Salaries and tools | Per invoice, retainer, or per FTE | Per user or per invoice | Software plus service fees |
| Data location | Your systems | Often the provider's systems | Your systems | Shared |
| Biggest risk | Key-person dependency | Provider dependency | Poor setup or low adoption | Messy handoffs |
Outsourcing a broken process doesn't fix it. It moves it. If invoices come in through five channels and nobody knows the approval limits, write your accounts payable procedures first, whichever route you take.
What Outsourcing Does Well, and Where It Goes Wrong
What it does well
It adds capacity fast. You don't have to hire, train, or cover for vacations and turnover. Good providers also bring tested procedures from many clients, which can tighten up a loose process. And your finance team gets time back for close, analysis, and cash planning.
Where it goes wrong
Most failures come from three places. First, unclear ownership: invoices stall because nobody knows whether the provider or your manager owns the next step. Second, hidden costs: exceptions, rush payments, and special reports billed on top of the base fee. Third, lost visibility: AP data lives in the provider's system, so answering a simple vendor question means opening a ticket.
There's also fraud risk. More people with access to vendor records means more chances for a fake bank change to slip through. Business email compromise cost U.S. victims $2.77 billion in reported losses in 2024, according to the FBI's IC3 2024 report. Any provider you hire has to show how they stop that.
How Much Does Accounts Payable Outsourcing Cost?
There's no standard price. Providers quote based on your volume, complexity, and scope. The common pricing models are:
- Per invoice: a fee for each invoice processed. Easy to compare, but check what counts as an "exception" and what that costs.
- Monthly retainer: a flat fee for a set scope and volume band.
- Per FTE: you pay for dedicated staff time, common with virtual AP services.
- Tiered or custom: bundles by service level, often with setup fees and minimum volumes.
Volume, number of entities and currencies, PO matching needs, exception rates, integration work, and support hours all push the price up or down.
Know your current cost first
You can't judge a quote without a baseline. Industry research gives you a starting point.
Here's what that means in dollars. At the $9.40 average, a company processing 1,000 invoices a month spends about $9,400 a month, or $112,800 a year, on AP processing. That's the number an outsourcing quote or a software plan has to beat. Run your own numbers with the AP cost calculator.
A fair cost comparison
Compare total cost, not the headline rate. Use the same line items for every option.
| Cost line | In-house | Outsourcing | Automation |
|---|---|---|---|
| Staff time | Full AP salaries and benefits | Time spent on approvals, oversight, and vendor escalations | Reduced AP time, plus exception handling |
| Fees or licenses | Current tools | Per-invoice, retainer, or FTE fees | Subscription fees |
| Setup | None | Onboarding and transition fees | Implementation and integration |
| Extras | Overtime at month end | Exceptions, rush payments, special reports | Add-ons, if any |
| Error cost | Duplicate and late payments | Same, plus errors from handoffs | Lower if duplicate checks and matching are set up |
| Exit cost | None | Transition back or to a new provider | Data export if you switch |
What to Keep In-House No Matter Who Does the Work
You can hand off tasks. You can't hand off accountability. These duties should stay with your own people under any model.
| Keep in-house | Why |
|---|---|
| Approving vendor bank detail changes | This is where payment fraud happens |
| Invoice approval authority | Only budget owners know whether a purchase was valid |
| Releasing payments | Keeps the provider from both preparing and sending money |
| Setting approval limits and match tolerances | These are policy decisions, not processing tasks |
| Final AP reconciliation sign-off | Your financial statements, your responsibility |
| Owning the provider relationship | Someone internal has to review performance and escalate problems |
How to Choose an Accounts Payable Outsourcing Provider
- Write the scope. List every AP task and mark it yours, theirs, or shared.
- Check system fit. Confirm they work with your ERP or accounting system and how data moves between you.
- Review their controls. Ask how they verify vendor changes, catch duplicates, and separate invoice processing from payment duties.
- Ask for audit reports. A SOC 1 Type II report covers controls that affect your financial reporting. A SOC 2 Type II report covers security and data handling. ISO 27001 certification is another good sign.
- Set service levels in writing. Use measurable targets, like the ones below.
- Read the exit terms. Who owns your data, how you get it back, and how long the transition takes.
- Pilot first. Start with one entity or a group of vendors, test normal invoices and exceptions, then expand.
Service level metrics worth putting in the contract
| Metric | What it measures | Reference point |
|---|---|---|
| Invoice cycle time | Days from receipt to approval-ready | 9.2 days average, 3.1 days best-in-class (Ardent Partners) |
| Data entry accuracy | Share of invoices entered with no corrections | Agree a target and how it's sampled |
| Exception rate | Share of invoices that need human review | Track the trend month over month |
| On-time payment rate | Share of invoices paid by the due date | Agree a target tied to your terms |
| Duplicate payments | Number and dollar value of duplicates paid | The target should be zero |
| Vendor query response | Time to answer a vendor's payment question | Agree hours and response windows |
Questions to ask before you sign
- Which tasks are in the base fee, and which cost extra?
- Who approves invoices, and who releases payments?
- How do you verify a vendor's request to change bank details?
- Can we see invoices, approvals, and audit history in real time?
- What happens when you miss a service level?
- Do you use subcontractors or offshore staff, and where is our data stored?
- What is the total monthly cost at our actual invoice volume?
- How do we get our data and open invoices back if we leave?
How to Switch Without Losing Control
- Measure where you are. Invoice volume, cycle time, backlog, exception types, and cost per invoice.
- Pick one goal. Clear a backlog, add capacity, cut cost, or improve visibility. Each points to a different model.
- Document procedures and controls. Approval limits, vendor change rules, exception owners, and payment release.
- Clean your vendor master. Remove duplicates and inactive vendors before anyone new touches it.
- Pilot a small scope. Fix problems before moving more entities or vendors.
- Review monthly. Compare results against the baseline and the service levels.
- Keep an exit plan. Know how you would bring AP back in-house or move it to another provider.
Where Quick Payable Fits
Quick Payable is software, not an outsourcing service. It doesn't supply AP staff. It's an option for teams that want to cut manual work and keep AP under their own control, or for teams that want a single system their own staff and an outside provider can both work in.
Because it runs inside Salesforce, invoices, approvals, vendor records, and audit history stay in your org, not in a provider's system. That answers the visibility problem that makes many outsourcing setups frustrating. If you're new to the idea, our guide to accounts payable automation explains how it works.
Quick Payable captures invoices with AI, matches them to POs, routes approvals by your rules, flags duplicates, and logs every action inside Salesforce. It's $100 per user per month with a 15-day free trial.
Frequently Asked Questions
A liability. It's money the business owes suppliers, so it goes on the liabilities side of the balance sheet, under current liabilities.
No. Accounts payable is a balance sheet account. The cost behind it can reach the income statement as an expense, or as cost of goods sold once inventory is sold, but the unpaid amount stays on the balance sheet.
Normal supplier invoices are current. If an unpaid balance is converted into a formal note due after more than a year, that amount is reported as a long-term liability, usually as notes payable.
It can happen for a single vendor, for example after an overpayment or a large credit memo. That debit balance is often reclassified as a receivable or prepaid amount when the balance sheet is prepared, so total AP isn't understated.
AP goes down by the amount paid, and cash goes down by the same amount. Working capital doesn't change.
Not by itself. It can reflect growth, seasonal buying, or longer terms. It becomes a concern when invoices are past due, the balance doesn't match vendor statements, or DPO climbs well above your agreed terms.
In most cases they mean the same thing: amounts owed to suppliers for goods and services bought on credit. Some companies use "accounts payable and other payables" to include smaller non-trade items in the same line.
Dadhich Rami is a technology professional with 10+ years of experience in Salesforce solutions, AppExchange applications, and third-party integrations. He writes for Quick Payable about accounts payable, AP automation, and Salesforce, with a focus on practical solutions that improve business workflows and efficiency.