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Financial literacy
8 min

Outsource Accounts Payable: Pros, Cons, and Small Business Cost Guide

See how to decide whether outsourcing accounts payable is the right move for your business.

Adi Trudler
Published at | Updated:
A small business owner organizing invoices and bills in her workshop.

Key takeaways

  • Weigh the pros and cons of outsourcing accounts payable before you hand off your bill-paying operations.
  • Recognize the signs you may need help, like frequent errors, rising costs, or an overwhelmed team.
  • Compare outsourcing against AP automation software, which keeps control in-house while cutting manual work.
  • Digitize your accounts payable first to reduce errors and costs, then revisit outsourcing as you grow.

What exactly is accounts payable?

Accounts payable (AP) is all the money your business owes to vendors and suppliers. It covers bills like rent, taxes, utilities, and supplies you haven’t paid for yet. So what is accounts payable in practice? When it’s managed well, there’s always enough set aside to pay every bill, and your invoices stay correctly documented.

Many business owners ask: is accounts payable an expense? Technically, AP is recorded as a liability, not an expense, because it reflects what you owe rather than what you’ve already paid.

It’s also important to understand accounts payable vs accounts receivable: AP tracks what you owe vendors, while AR tracks what customers owe you.

What is accounts payable outsourcing?

Accounts payable outsourcing is hiring a third party to manage your bill-paying operations. That includes invoice processing, approvals, vendor payments, and record-keeping.

Instead of your team handling every bill, an outside provider takes over the day-to-day work. Some providers use their own software and staff, so you get both people and technology in one package.

It’s different from basic bookkeeping. Bookkeeping records what already happened, while AP outsourcing actively manages your payments as they come due.

Why outsource accounts payable?

As your business grows, managing AP gets harder. That’s often the point to bring in a professional or one online solution to manage the books, invoices, and payments.

Outsourcing AP can cut errors, add better technology, and free up your time. Here’s why businesses make the switch:

Fewer errors

As your business grows, so does the number of invoices. When you start noticing there are many errors, it could be the result of employee burnout or a lack of standardized processes. In fact, the average company makes duplicate payments on roughly 0.1% to 0.8% of its payments. Some third-party solutions use AI in accounts payable and AI in accounts receivable to flag duplicate invoices, spot anomalies, and reduce costly errors. Working with a third party equipped with the technology and experience to minimize errors can go a long way.

More advanced technology

Many vendors are working with paper invoices and paper checks. By using accounts payable software, small business owners can automate approvals, pay vendors online, and cut down on manual paperwork. If you’re wondering what are online payments and how they work, AP outsourcing providers can guide you through digital methods like bank transfers and virtual cards. But as bill pay solutions allow you to pay by credit card or bank transfer you can go digital, even if other businesses around you don’t.

Improve vendor relationships

We’ve already mentioned how doing the AP yourself can benefit your relationship with suppliers and vendors. However, as the team and business grow, the work overload can lead to late payments or missed payments altogether. Other than the obvious outcome of that, vendors will sometimes resend the same invoice through multiple channels, which can result in double-paying an invoice.

It’s their expertise

Accountants and bookkeepers already know how to use digital AP tools. They can handle every aspect of your finances—from AP to taxes—and save you a lot of time. These professionals are also proficient in AP and AR automation tools, which integrate directly with accounting systems to eliminate manual data entry. They know best how to combine accounting tools like QuickBooks and AP tools like Melio in ways that’ll save you money.

Focus on the craft

Whether you own a restaurant, run a construction company, or sell home decor, when hiring a third party to manage the AP you and your team are free to do some higher-level tasks.

Rapid growth

When companies grow quickly, a proper scaling plan must be put in place. If the growing workload affects the in-house financial team (or business owner), it’s time to outsource AP.

Reduced costs

Manually processing a single invoice typically costs $10 to $15. Outsourcing can lower that, and it’s usually cheaper than hiring and training new staff.

Why keep accounts payable in-house?

When it comes to small business accounts payable processes, many owners prefer to stay hands-on so they can directly oversee vendor relationships and payment timing. It makes sense that the person who talks to the vendors on a daily basis would be the one to handle invoices and payments. That way, you can build strong relationships and know exactly what is owed, and when.

Here are the top three reasons to keep AP in-house:

Keep control

As a business owner, you always want to stay on top of everything and make sure that the money going out of your business is really the right amount. Keeping all AP in-house means you have more control over every payment and can be more aware of what amounts are going out at all times.

Maintain workflows

By now, you probably already have a workflow that works for you. Vendors give you invoices, someone uploads invoices to your accounting software, you or your staff pay them, and that’s that. When you keep the AP in-house, you get to keep the workflow you have in place and avoid mistakes.

No need to rely on a third party

Let’s face it, trusting others with our own money is not easy. It’s always hard to involve someone new in the process, especially an outsider who doesn’t care for the business as much as you do. When keeping things in-house, fewer people are involved and you know you can trust those who are helping out.

How much does it cost to outsource accounts payable?

The cost of outsourcing accounts payable depends on your invoice volume and the services you need. Small businesses often pay a set monthly fee or a price per invoice.

Providers usually price in one of two ways. Some charge per invoice they process. Others charge a flat monthly rate that covers a bundle of tasks like invoice entry, approvals, and payments.

Compare that to the cost of doing AP in-house. You’re paying for staff time, software, training, and the errors that slip through manual work. For many small businesses, outsourcing costs less than hiring and training a dedicated AP person.

Accounts payable outsourcing vs. AP automation

Outsourcing and AP automation solve the same problem in different ways. Outsourcing hands the work to people outside your business. Automation gives your own team software that does the heavy lifting.

With outsourcing, a provider manages your invoices and payments for you. With automation, you keep AP in-house but replace manual data entry and paper checks with a digital tool.

Many small businesses find that automating AP gives them the speed and accuracy of outsourcing while keeping control in-house. You can pay vendors online, set approvals, and sync with your accounting software, all from one place.

So, should you outsource accounts payable?

Your choice often comes down to evaluating common accounts payable problems and solutions—whether you’d rather solve process issues internally or hand them to a specialist. Both options have trade-offs. In the end, it comes down to how comfortable you are trusting someone outside your organization with your money.

If you’re still not sure about outsourcing, you can try managing the AP process yourself, by digitizing it. This allows you to keep it in-house while reducing human error and costs.

Accounts payable outsourcing FAQs

Can a small business outsource accounts payable?

Yes. Many providers work with small businesses and scale their services to your invoice volume, so you only pay for what you need.

What is the accounts payable outsourcing process?

You send your invoices to the provider. They enter the data, get your approvals, pay your vendors, and sync the records back to your accounting software.

Is accounts payable outsourcing cheaper than doing it in-house?

It often is for small teams. Outsourcing can cost less than hiring, training, and equipping a dedicated AP employee.

Is AP automation better than outsourcing accounts payable?

It depends on how much control you want. Automation keeps AP in-house with software, while outsourcing hands the work to an outside team.

*This blog post is intended for informational purposes only and is not intended as financial advice.
**Melio does not provide legal, tax or accounting advice, and you should consult with a professional advisor before making any financial decisions.