What is accounts payable outsourcing?

Accounts payable outsourcing is when a business contracts with a third-party agency or external freelancer to handle some or most of the end-to-end accounts payable process.

AP outsourcing can either be an alternative or complement to having in-house finance staff overseeing AP processing or using AP automation software. 

For example, some businesses with an AP department might still work with an AP outsourcing agency, particularly if they have a significant month-to-month payment volume. 

This list below provides a good summary of the different tasks involved in accounts payable that a business might outsource: 

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Outsourcing providers automate payable functions to speed up processing, lower the risk of error, and offer a competitive price for AP processing.

If you consider outsourcing some or most of your AP process, it’s important to establish clear ownership of each of these steps to avoid any delays or other payment issues. 

Why do businesses consider AP outsourcing?

Businesses use AP outsourcing solutions for several reasons:  ‍

They want to save money

First and foremost, businesses sometimes outsource accounts payable as a cost-effective way to save money by reducing headcount and AP processing costs. 

Regarding employment benefits and back-office administration costs, AP outsourcing can be more affordable than increasing headcount costs by hiring a full-time staffer. 

Moreover, the human capital needed to process a single invoice using a third party will likely be lower than when a CFO or AP clerk processes it. 

Their finance staff is stretched thin

Whether you have a one-person finance team managing 100 different fires or a robust finance organization, chances are that AP invoice processing is not top of the priority list. 

AP processing is considered a low-value-add activity, so businesses will often outsource AP to free up their in-house finance staff’s time for higher impact responsibilities like month-end close. 

An added benefit is that it can remove dependency bottlenecks and help your staff avoid feeling overworked and frustrated, a problem significantly impacting accounts payable departments.

They want to prevent fraud and ensure compliance.

Using an accounts payable outsourcing service provider can provide additional checks and balances that help your AP team process invoices on time, maintain positive vendor relationships, and enforce overall AP policy compliance. 

Every year, the AFP (Association for Finance Professionals) publishes an annual payments fraud survey.

The 2023 survey finds that 65% of organizations surveyed have been victims of payment fraud, with paper checks being the biggest culprit. This can typically happen when finance teams process electronic or paper invoices that appear valid but are sent by criminal actors. 

Having an extra set of eyes could also make your business less susceptible to this type of accounts payable fraud. In addition, accurate invoicing is a prerequisite to generating accurate financial statements. 

A system that generates duplicate payments — or pays fraudulent invoices — is unreliable, and the total accounts payable balance is likely incorrect. 

They want to improve their vendor relationships.

An AP process delayed by bottlenecks, payment discrepancies, or by lost data can quickly damage your relationships with your vendors, putting you at risk of losing key suppliers. 

You never want to have to rush to find a new supplier before a major event or shipment simply because a lost check caused your vendor to end your business relationship. 

By that same token, processing invoices on time and accurately could unlock opportunities for early payment discounts that boost your bottom line. 

Pros & cons of AP outsourcing

First, let’s cover the advantages of using an accounts payable outsourcing company. 

Pros of outsourcing AP

More accuracy 

Outsourcing AP provides an extra layer of reviews that help ensure that errors are caught ahead of time. 

Lower cost compared to full-time hire

Even with accounts payable automation, the payment process can be time-consuming. Using a third party is often less expensive than hiring a full-time resource, like an AP clerk. 

Access to AP software tools

AP outsourcing agencies or contractors likely use AP automation and other financial technology to drive efficiencies and streamline the end-to-end AP process. 

By extension, hiring an AP outsourcing third party would help an organization derive benefits from the software the AP outsourcing firm is using. 

Reduces your team’s workload

If all goes well, outsourcing AP means that your finance team is no longer spending significant hours managing payable workflows, which frees up time for them to focus on higher-impact work. 

Improved vendor management

Working with an AP outsourcing partner can increase the likelihood that your payments are sent on time (or ahead of time), contributing to positive working relationships with your vendors. 

After all, improving vendor relationships is just a game of making sure they get paid on time, which is something that vendor management software can help with.

Manage cash flow more effectively

By outsourcing many of the manual AP tasks, you have more time to examine the bigger picture – key dates you’re sending invoices, what your cash outflows look like each day, discounts offered by vendors, and more. 

Potential cons of outsourcing AP

You may lose some control over the process

A trade-off you make whenever you bring on any agency or third party, AP outsourcing included, is that you tend to lose control over some of the process. 

But in many ways, that’s the point. You free up time for yourself by outsourcing a function for others to manage, so you can focus on higher priority items and strategy. 

By establishing clear communication and stringent reporting protocols with the outsourcing provider, you can maintain an appropriate level of oversight and thereby ensure a smooth operation.

You must be extra mindful of your data security practices

When outsourcing AP,  you must rely on the third-party provider’s security to protect your data.

That is why it’s essential that you collaborate with your IT and legal teams to ensure you and the AP outsourcing resource are following internal protocols for working with vendors. 

To alleviate data security concerns, it's suggested to conduct routine audits, insist on regular security updates, and insist on stringent data breach protocols to be in place.

You may create more work than you started with

We’ve all been there. You hire an agency that promised the world, but they fail to deliver on that vision for one reason or another. 

AP sourcing is no different. This is why it’s essential for you to do reference checks before you onboard an AP service provider and work closely with your third-party support to ensure your goals are being met. 

Third-party agencies may lack contextual understanding

An AP outsourcing provider might lack the situational nuances and understanding that in-house AP specialists possess. 

This inherent lack of contextual knowledge can potentially limit their ability to successfully handle intricate financial procedures and anomalies, which could negatively impact the efficiency and accuracy of AP operations.

This is why businesses often lean more on full-time staff as they scale. 

The benefits of AP automation software

AP automation software digitizes and automates the end-to-end accounts payable process, allowing businesses to capture, code, match, and approve accounts payable data using fewer manual tasks.

As mentioned previously, AP outsourcing service providers often use AP automation software to support businesses they work with.

However, there are AP automation solutions that in-house finance teams can use to automate the end-to-end accounts payable process without having to lean on AP outsourcing firms. 

With solutions like Rho, lean finance teams – from a sole CFO or business owner to a small team – can easily process thousands of invoices in seconds.

In a few clicks, you can: 

• Collect invoices and supporting documentation within one platform
• Use AI-powered OCR invoice scanning to eliminate manual data entry
• Receive all documents and approval notifications within the software
• Pay bills in bulk or one-by-one across different payment methods: ACH, wire, check, or card
• Sync data seamlessly with your ERP for month-end close

Five best AP automation software tools

Here's a breakdown of some of the best AP automation software on the market today.

1. Rho

Rho recently released AP automation built into Rho’s all-in-one finance platform. 

In seconds, the Rho platform executes the entire payable lifecycle, processing thousands of supplier invoices at scale – all in the same fee-free platform where you can manage your expenses, banking, and treasury.

"Rho simplified our expense, procurement (procure-to-pay), and payable processes, making it easy for our brands to manage expenses and saving us hours of reconciliation time each week. With Rho, not only have I saved about 8 hours a week, but my CFO saves multiple hours per week and my executive assistant also saves an extra two to three. That's valuable time for a company focused on expansion.”—Brian Willet, CEO of Willet + Cumro Innovations

Features

Rho AP starts by capturing bill data sourced from invoices or your ERP, then schedules thousands of corresponding payments using supported payment methods (ACH, card, checks, and wires) in seconds. 

Throughout the process, Rho’s multi-level approval process controls to enforce compliance with your spending policy. 

Pros

• ‍End-to-end finance – Streamlined, unified payments, banking, and expenses in one platform‍
• Free – The Rho platform, including AP, is free to use‍
• Banking-powered AP – Bank integration enables faster payment settlement times and accurate payment status reporting‍
• Scalable – Designed to support 10-person growth-stage startups and 200-plus employee, multi-entity businesses‍
• Customer support – Available 24H Mon-Fri, 10-7pm on weekends to assist with implementation and questions

Cons

• ‍3-way match – Not yet available. Scheduled for release later this year ‍
• Global support – Non-USD vendor payments and W9 and 1099 support available soon

Integrations

Rho integrates with QuickBooks Online, NetSuite, Microsoft Dynamics 365 Business Central, and Sage Intacct. Rho also supports flat-file CSV exporting, so you can automatically tailor transaction categorization to your business needs.

Pricing

The Rho platform is free, with no fees for users, domestic payments, accounts, or the overall platform. Rho only charges a 1% fee on FX payments and a wire recall fee. 

2. Ramp

Ramp is an expense management platform offering corporate credit cards, invoice processing, and vendor payments. Ramp’s services are designed to control spend and optimize finance operations, all on a single platform.

Features

Ramp provides corporate cards, expense management, bill payments, accounting automation, and data to analyze spending. The company focuses on startups and the VC-backed community.

Pros

• ‍Cashback on card use – Ramp offers 1.5% cash back on purchases‍
• ERP integrations – QuickBooks, Netsuite, Xero, and Sage Intacct, among others‍
• Invoice approvals – Multi-level approvals and vendor-specific approvals

Cons

• ‍Pricing – Ramp recently raised its pricing, including several features, including native accounting integrations into paid plans. ‍
• AP automation issues – Some users believe that the AP automation is slow and difficult to navigate, according to review comments‍
• Customer support – Ramp does not provide live phone support‍
• Commercial banking and treasury management – Ramp does not offer these services to customers

Integrations

QuickBooks, NetSuite, Xero, Sage, and other ERP platforms

Pricing

Some of Ramp’s basic features, like corporate cards and expense management, are free to use. 

However, Ramp Enterprise offers paid features that are available for a cost. These include a dedicated account manager, ERP integrations, and customer permissions. 

Ramp vs. Rho

Vs Ramp, Rho fully integrates AP and banking, eliminating late payments, optimizing cash management, and improving visibility over all payment statuses – for free.  

In addition, Ramp has rolled some advanced features like ERP integrations and AP automation into paid Ramp Plus and Ramp Enterprise plans. Meanwhile, Rho offers live customer support 24H Mon-Fri, 10-7pm ET on weekends at no additional cost.

3. BILL (formerly Bill.com) 

Bill.com is a popular AP automation solution that SMBs and middle-market companies use to automate the accounts receivable and AP functions. 

Features

The company offers AP automation, vendor management, and AR automation. BILL provides checks, ACH, and other payment options, including international payments.

Pros

• ‍Invoice processing – The solution generates invoices using email attachments from vendors‍
• Approval workflows – BILL can manage multiple invoice approvers‍
• AR support – BILL offers both AP and AR support

Cons

• ‍Expensive – The solution can get expensive depending on your organization's size and payment volume‍
• No banking integration –  This could lead to payment delays and lack of visibility over payment statuses‍
• Errors – G2 reviews indicate issues with payment times and responsive customer support

Integrations

BILL's corporate pricing level integrates with QuickBooks Online, QuickBooks Pro/Premier, and Xero. The Enterprise pricing level integrates with QuickBooks Enterprise, Oracle NetSuite, Sage Intacct, Microsoft Dynamics, and other ERPs.

Pricing

BILL’s corporate pricing level is $79 per user per month, and BILL offers Enterprise (custom pricing) for more complex organizations. Additional fees for some ACH, check, and wire payments can quickly add up depending on your payment volume.

BILL vs. Rho

Thanks to integrated banking, Rho gives users more control over payment timing and better payment transparency. BILL debits your third-party bank account, waits until the payment clears, and then pays your vendor. 

Rho also offers corporate cards to consolidate all your spend – vendor and expenses – in one place for cleaner records and fewer manual processes at month's end.

Lastly, BILL can be expensive for organizations with significant payment volume, whereas Rho is free to use.

4. Tipalti

Tipalti is a payment automation and accounts payable software built for managing global AP workflows. 

Features

Tipalti’s software streamlines purchase requests, approval, and vendor selection with real-time visibility. The platform executes payments using various methods and currencies with automated payment approvals and fraud detection. 

Pros

• ‍Strong global payment support – Customers can make global payments to 196 countries in each country’s global currency, and Tipalti provides global tax compliance ‍
• Invoice management automation – The company offers automated PO matching and invoice scanning‍
• Integration support – Includes NetSuite, Quickbooks, and Sage Intacct‍
• Tax compliance – Tipalti offers advanced global tax compliance features, including W-9s, 1099s, and eFiling integrations

Cons

• ‍Expensive – Tipalti’s fee for the core platform is relatively expensive, and customers must pay higher fees to upgrade for other features and tools‍
• Extensive implementation – G2 customer reviews suggest that an implementation can take months‍
• Point solution limitations – AP point solutions make it difficult to establish full control and visibility over spending compared to integrated finance solutions with AP capabilities

Integrations

Tipalti integrates with NetSuite, Intacct, Quickbooks, Sage, Microsoft Solutions, Xero, and many other ERPs.

Pricing

Pricing starts at $149 for the platform fee, which allows customers to use Tipali’s core product offering. 

To access advanced capabilities, including W-8 tax forms, international tax IDs, and multi-entity accounting support, you must upgrade your Tipalti account. You must contact Tipalti’s sales team to receive a specific quote. 

Tipalti vs. Rho

For US-based businesses looking to automate their accounts payable process, Rho’s accounts payable solution is a great, free-to-use solution that helps unify and scale your finance stack. 

For businesses with complex global payment networks looking for a point solution, Tipalti can support your AP automation needs, assuming the high costs and implementation time are acceptable.

5. Stampli

Stampli provides AP automation for companies that want to improve efficiency without reworking their ERP or changing existing AP processes.

Features

Stampli’s platform is easy to navigate and provides integrations with dozens of ERPs. The Stampli solution can be deployed in a matter of days with no disruption to your business.

Pros

• ‍Visibility – Invoice tracking at every stage of the approval process‍
• Invoice management – Centralized communication hub that includes all invoice documentation ‍
• Customer support – Experienced and responsive customer support team

Cons

• ‍International payments – New functionality that is unproven for customers‍
• UX – Credit memo processing can be confusing, and some ERP interfaces do not smoothly sync all invoice data‍
• Point solution limitations – AP point solutions make it difficult to establish full control and visibility over spending compared to integrated finance solutions with AP capabilities

Integrations

Stampli offers more than 70 ERP integrations.

Pricing

Stampli uses month-to-month pricing that varies based on the needed services. You have to contact Stampli’s sales team for a specific quote.  

Stampli vs. Rho

Rho provides an all-in-one platform for spend and cash management. Stampli provides AP automation but does not offer cash or treasury management functionality. Stampli users must rely on other solutions for cash and treasury management.

Wrap-up: Streamline AP with Rho

As we discussed earlier, some businesses find AP outsourcing beneficial. It can help you generate cost savings, free up time for your finance team to focus on higher-impact work, and provide an extra layer of validation to ensure compliance and avoid mistakes. 

However. Rho can help you achieve all of these objectives without the added cost of investing in an AP outsourcing firm.

Businesses like Willet + Cumro Innovations are using Rho AP to save 40 hours a month processing invoices – and all with better holistic spend control and cash management.

If you’d like to try out Rho AP too, schedule time with a Rho payments expert today!

Ken Boyd is the co-founder and chief educator for accountinged.com and owns St. Louis Test Preparation. He provides tutoring, podcasts, blogs, articles, and speaking services on accounting and finance. Ken is also the author of several books, including Cost Accounting For Dummies, Accounting All-In-One For Dummies, The CPA Exam For Dummies, and 1,001 Accounting Questions For Dummies. 

Competitive data was collected as of October 26, 2023, and is subject to change or update.