AP outsourcing companies
Accounts Payable Outsourcing Companies: Providers, Services, and Pricing Compared
Accounts payable outsourcing companies take some or all of your AP work off your team: receiving invoices, entering them, chasing approvals, reconciling vendor statements, and sometimes running the payments. The market splits into four very different kinds of provider, and they charge in four very different ways. This page lays out who they are, what they actually cost in 2026, and the honest case for handing the work to a provider versus automating it in software you keep control of.
Try it now, capture a real invoice
Free plan, no credit card, your data stays yours
$1.50 to $6
Typical per-invoice fee quoted by AP outsourcing providers in 2026
30 to 90 days
Usual transition period before an outsourced AP team runs at full speed
$5k to $15k
Common one-time onboarding and process-documentation charge
Same day
How long it takes to run your first invoice through software instead
Syncs to your accounting system
What accounts payable outsourcing companies actually do
Scope varies enormously between providers. These are the pieces on the table, and the ones you should think hard before giving away.
Invoice receipt and data entry
The provider takes over the AP inbox and the mail, keys invoice header and line data into your ERP, and codes it to the GL. This is the piece everybody outsources first, and the piece software replaces most completely.
Approval chasing
A coordinator emails your budget owners and follows up until they respond. You are paying a person to send reminders. Note that the approver is still your employee, so the bottleneck does not actually move.
Matching and exception handling
Two and three-way matching against POs and receipts, with exceptions routed back to you. Most providers bill exceptions separately, often $5 to $15 each, because they are the expensive part of the work.
Vendor inquiry and statement reconciliation
The provider answers vendor calls about payment status and reconciles supplier statements. Genuinely useful if your AP team is drowning in where-is-my-money emails.
Payment execution
Some providers cut checks and run ACH files. Handing payment authority to a third party is the single biggest control decision in this whole exercise, and it is where fraud and segregation-of-duties risk concentrates.
Reporting and month-end support
Accrual schedules, aging reports, and close support. The quality of this depends entirely on the seniority of the people assigned to you, which is exactly what varies most between providers.
How to shortlist AP outsourcing companies
Four steps that stop you comparing a $2 per-invoice quote against a $5 quote that is not for the same work.
Count your real invoice volume and exception rate
Pull twelve months of AP invoice counts and split PO from non-PO. Then count how many needed a human to fix something. Exceptions, not invoices, drive both your in-house cost and every provider's quote.
Write the scope down before you take a call
Decide up front whether the provider gets data entry only, or matching and approvals too, or payment execution. Providers price to the scope you describe, and a vague scope always turns into change orders later.
Ask exactly what is excluded
Get the exception fee, the overage rate above your contracted volume, the onboarding charge, and the exit terms in writing. The headline per-invoice price is rarely what appears on the invoice.
Price the software route side by side
Run the same volume through AP automation and compare. If the provider's value is mostly keying invoices, software does that part for a fraction of the money and you keep the data, the vendor relationships, and the controls.
When outsourcing genuinely wins, and when it does not
We sell software, so read this section with that in mind. It is still accurate.
Outsource: you have a shared-service backlog and no headcount
If AP is months behind, you cannot hire, and the volume is enormous, a BPO can throw bodies at it faster than any implementation. Buying time is a legitimate reason to outsource.
Outsource: heavy paper and vendor phone traffic
If a real mailroom full of paper invoices and a phone line full of vendor inquiries is the problem, providers with scanning centers and offshore service desks handle that cheaply. Software does not answer the phone.
Automate: the work is data entry and chasing approvals
This is most mid-market AP departments. Capture, coding, matching, and routing are exactly what software does without a contract, a transition period, or a per-invoice meter running.
Automate: you need control, audit trail, and your own data
Auditors want to see who approved what and when, in a system you control. Outsourcing the process does not outsource the responsibility: the internal control failure is still yours.
Accounts payable outsourcing companies charge roughly $1.50 to $6.00 per invoice, or $3,000 to $6,000 a month on a retainer, to run part or all of your AP process for you. The four provider types are enterprise finance-and-accounting BPOs, mid-market nearshore firms, offshore SMB bookkeeping shops, and document-processing bureaus. Outsourcing is the right call when your problem is volume, paper, and a hiring freeze. It is the wrong call when your problem is data entry and approval chasing, which AP automation software removes for less money while you keep the controls.
The four kinds of accounts payable outsourcing companies
Vendors in this market get lumped together in listicles, but they are not competing for the same buyer. A 200-invoice-a-month distributor and a 40,000-invoice-a-month manufacturer should not even be talking to the same firms.
| Provider type | Examples in the US market | Best for | Typical pricing model |
|---|---|---|---|
| Enterprise F&A BPO | Genpact, Accenture, Infosys BPM, WNS, IBM | Global enterprises moving a whole shared-service center offshore, usually 10,000+ invoices a month | FTE-based or a managed-service contract, negotiated, multi-year |
| Mid-market and nearshore BPO | Auxis, Corcentric, Datamatics | Mid-market US companies that want a dedicated team in a compatible time zone | Per-invoice or blended FTE plus transaction fees |
| Offshore SMB bookkeeping firm | Numerous smaller offshore providers serving US small businesses and CPA firms | Small businesses and accounting firms under a few thousand invoices a month | Monthly retainer or hourly, often $1,800 to $4,500 a month for dedicated staff |
| Document-processing bureau | Scan-and-capture bureaus such as ILM Corporation | Companies buried in paper invoices that need a mailroom, not a finance team | Per-page or per-document scanning and keying fees |
| AP automation software (the alternative) | AutoPayables and similar platforms | Teams whose real cost is manual entry, coding, and approval chasing | Subscription, usually by volume tier, with no transition project |
Most of these firms do not publish prices. Every serious engagement ends in a custom quote built from your invoice volume, your exception rate, and how much of the process you are handing over. That is why two quotes for the same company can differ by 3x and both be honest.
How much does it cost to outsource accounts payable?
Across published provider pricing pages and 2026 industry guides, quoted rates cluster tightly. Per-invoice fees usually land between $1.50 and $6.00, with small-business and complex-invoice work quoted as high as $10. Retainers for small and mid-sized companies sit around $3,000 to $6,000 a month for a set volume, with overage charges above it. Dedicated offshore AP staff are commonly quoted at $1,800 to $4,500 a month per person.
The headline rate is not the bill. Budget for these too:
| Cost line | Typical range | What triggers it |
|---|---|---|
| Per-invoice processing fee | $1.50 to $6.00 | Every invoice, with PO and non-PO often priced differently |
| Monthly retainer | $3,000 to $6,000 | A contracted volume band for small and mid-sized companies |
| Onboarding and transition | $5,000 to $15,000, one time | Process documentation, system access, parallel running |
| Exception handling | $5 to $15 per exception | Price or quantity mismatches, missing PO, coding the provider cannot resolve |
| Volume overage | Contract-specific | Invoices above your committed band, which is where seasonal businesses get hurt |
| Ramp-up drag | 30 to 90 days | Your team still carries part of the load while the provider learns your vendors |
Compare that to your current number. Manual, in-house invoice processing is commonly benchmarked at $10 to $20 all-in per invoice once you count salary, error correction, and late-payment penalties. Our cost per invoice benchmarks break down how to calculate your own figure honestly, because the fully loaded number is what any provider will quote against.
Accounts payable outsourcing vs AP automation software
This is the real decision, and the one every provider comparison page skips. Outsourcing moves the manual work to cheaper hands. Automation removes the manual work. Those are different things and they age very differently: an outsourcing contract costs the same per invoice in year five, while automated capture costs the same whether you process 500 invoices or 5,000.
| Factor | Outsourcing to a provider | AP automation software |
|---|---|---|
| Cost shape | Per invoice, forever. Scales linearly with volume | Subscription. Marginal cost of the next invoice is near zero |
| Time to value | 30 to 90 days of transition | Same day for capture and approvals; ERP sync takes longer |
| Who approves | Still your budget owners. The bottleneck does not move | Still your budget owners, but the chasing is automatic |
| Control and audit trail | Lives partly in the provider's system. You request reports | Lives in your system. Every action timestamped and exportable |
| Your data | The provider holds vendor and invoice data. Exit means migration | You hold it. Export any time |
| Fraud and segregation of duties | Depends on the provider's controls and staff turnover | Rules you set, enforced automatically, with duplicate detection |
| Peak volume | Overage charges | Absorbed, no extra staff |
| Where it genuinely wins | Paper mailrooms, vendor phone desks, hiring freezes, huge backlogs | Data entry, GL coding, matching, approval routing, duplicate prevention |
Be honest about which column your problem sits in. If you receive 3,000 paper invoices a month and someone has to open envelopes, a bureau with a scanning center will beat software at that specific task. If your invoices arrive as PDFs by email and your AP clerk spends the day retyping them into the ERP and pinging managers on Slack, you are considering paying a provider to keep doing something a machine should have stopped doing years ago. That is what invoice processing software is for.
What are the risks of outsourcing accounts payable?
The risks are real, and they are not the ones most buyers ask about.
- You cannot outsource accountability. If the provider pays a fraudulent invoice, it is your money and your control failure. Auditors will ask you, not them, for the evidence.
- Payment authority is the bright line. Data entry is safe to hand over. Releasing payments is where segregation of duties can quietly collapse, especially if the same provider team both sets up vendors and runs the payment file.
- Vendor bank-detail changes. An offshore coordinator who has never met your vendors is a soft target for business email compromise. Insist on out-of-band callback verification for any bank-detail change, in the contract.
- Staff turnover on your account. The team that learned your chart of accounts in month two may be gone in month nine, and the learning curve restarts on your dime.
- Exit cost. Getting AP back in-house after three years is a project. Ask what happens to your vendor master, your invoice images, and your open items on the day you leave, and get the answer in the contract, not the sales deck.
None of this means do not outsource. It means read the control clauses as carefully as the price. Our guide to accounts payable internal controls covers what has to stay true no matter who does the keying.
Is outsourcing accounts payable a good idea?
It is a good idea when labor is your constraint and you have accepted a permanent per-invoice cost in exchange for capacity you cannot hire. It is a poor idea when the process itself is the problem, because you are then paying someone else to run a broken process at a slightly lower hourly rate. The cheapest AP department is not the one with the cheapest clerks. It is the one that touches the fewest invoices, and that is a software outcome, not a staffing outcome.
A middle path works well for a lot of mid-market teams: automate capture, coding, matching, and approvals with accounts payable software, keep one AP person in-house to own vendors and exceptions, and outsource nothing that touches payment authority. That usually costs less than a BPO contract, keeps the audit trail in your system, and leaves you free to move.
How to run the numbers before you decide
Take your annual invoice volume. Multiply by the provider's quoted per-invoice fee, add the onboarding charge amortized over the contract, and add your estimated exception count times the exception fee. That is the outsourcing number. Then take the software subscription for the same volume, add the internal hours you will still spend on exceptions and vendor management, and compare. Run it over three years, not one, because the transition cost is front-loaded and the per-invoice meter is not. Our AP automation ROI walkthrough shows the same math from the software side, including the parts that usually get left out.
Frequently asked questions
Accounts payable outsourcing is hiring a third-party provider to run part or all of your AP process: receiving vendor invoices, entering and coding them, chasing approvals, handling exceptions, reconciling vendor statements, and sometimes executing payments. The provider's staff do the work, usually offshore or nearshore, in your ERP or theirs. You keep legal and audit responsibility for the payments regardless of who does the keying.
Providers typically quote $1.50 to $6.00 per invoice, or a monthly retainer around $3,000 to $6,000 for small and mid-sized companies. Expect a one-time onboarding charge of roughly $5,000 to $15,000, exception fees of $5 to $15 per problem invoice, and overage rates above your contracted volume. Almost no provider publishes rates, so every real number comes from a custom quote built on your volume and exception rate.
At the enterprise end, the large finance-and-accounting BPOs are Genpact, Accenture, Infosys BPM, WNS, and IBM, which run entire shared-service centers. In the mid-market, firms such as Auxis, Corcentric, and Datamatics take dedicated AP teams. A long tail of offshore bookkeeping firms serves US small businesses and CPA firms. Size does not equal fit: the enterprise BPOs are not interested in a 300-invoice-a-month company.
It is a good idea when your constraint is labor: a large backlog, a paper mailroom, heavy vendor phone traffic, or a hiring freeze. It is a poor idea when your constraint is the process itself, because outsourcing manual data entry means paying a per-invoice fee forever for work software can eliminate. Most mid-market AP problems are process problems, not headcount problems.
The main risks are loss of control over the audit trail, weakened segregation of duties if the provider both sets up vendors and releases payments, exposure to vendor bank-detail fraud through staff who do not know your suppliers, turnover on your account team, and a costly exit if you bring AP back in-house. Accountability for a fraudulent or duplicate payment stays with you, not the provider.
For most companies whose invoices already arrive as PDFs or email attachments, yes. Outsourcing charges per invoice forever, so the cost scales with volume, while automation is a subscription whose marginal cost per extra invoice is close to zero. Outsourcing still wins on physical paper handling and vendor phone support, which software does not do.
Yes, and you generally should. Scope the provider to invoice receipt, data entry, coding, and matching, and keep approval and payment release inside your own team and system. That preserves segregation of duties, keeps the payment audit trail with you, and removes the highest-risk part of the arrangement while still offloading the labor.
Try the alternative before you sign a three-year BPO contract
Upload one vendor invoice and watch AutoPayables read it, code it, and route it for approval. Free to start, no credit card, no transition project.
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