You spend hours every week chasing invoices that should have been paid already. You know there's a better way. You're considering outsourcing your accounts receivable, but you want to understand the costs, the risks, and whether it makes sense for a business your size.

This article gives you the honest answers. No sales pitch, just concrete costs, common pitfalls, and a comparison of the three most common options: handling AR in-house, outsourcing collections to an agency, and automating accounts receivable with software.

What does outsourcing accounts receivable cost?

The cost of outsourcing accounts receivable varies widely depending on the model you choose. There are three common pricing structures:

No cure, no pay (collection agency). You only pay when the agency collects. Commission rates range from 15 to 50% of the collected amount, depending on the age and size of the claim. On a EUR 5,000 invoice collected after 90 days, you'd pay EUR 750 to EUR 2,500 to the agency. The older the receivable, the higher the percentage.

Fixed monthly fee (AR management service). Some providers work on a subscription basis, roughly EUR 45 to EUR 250 per month, plus a per-action fee (EUR 1.50 to EUR 4.50 per successful call attempt). More predictable, but costs add up with a large receivables portfolio.

Factoring. You sell your outstanding invoices to a factoring company. They pay you 80 to 90% of the invoice value immediately and collect the rest from your customer. The cost: 1 to 5% of invoice value plus interest on the advance. On EUR 500,000 in annual invoiceable revenue, factoring costs you EUR 5,000 to EUR 25,000 per year. You get your cash fast, but at a structural margin.

Hidden costs nobody talks about

Beyond the direct fees, there are hidden costs that increase the true price of outsourcing:

Handover time. Preparing case files for an agency or factoring company takes time. Every claim needs to be delivered complete: invoice, correspondence, contact details, any disputes.
Loss of customer knowledge. An external party doesn't know your customer. They don't know that Company X always pays 10 days late but always pays, or that Company Y has an ongoing delivery dispute.
Relationship damage. European research shows that a quarter of businesses have stopped working with a customer due to a payment conflict. See these B2B payment delay statistics for more insights. When a collection agency handles the contact, the tone is often more aggressive than necessary.

Outsourcing to a collection agency

The collection agency is the best-known option for outsourcing AR. But it's important to understand when an agency makes sense and when it doesn't.

A collection agency is effective for claims you can no longer collect yourself: customers who don't respond, unknown addresses, bankruptcies. The agency has legal tools (bailiffs, court summons) that most business owners don't readily use themselves.

But a collection agency is not designed for day-to-day accounts receivable management. Most agencies only start working on a claim once it's months old. And that's exactly the problem: after 90 days, the write-off rate is already 25%. The longer you wait to follow up, the lower your chances of getting paid.

Once you hand over a claim, you also lose control over the tone. The agency acts on your behalf, but with their script and their urgency. For long-term customer relationships, that's a risk you need to weigh carefully.

The 5 biggest risks of outsourcing AR

1. Loss of control over the customer relationship

Your customer deals with a third party that has no context about your working relationship. An invoice that's 15 days late is very different from one that's 90 days late. But for a collection agency, it's the same procedure.

2. Timing: too late in the process

Most receivables are successfully collected in the first 30 to 60 days. Businesses that consistently follow up within the first week after the due date achieve collection rates of 90 to 95%. Outsourcing to an agency typically starts at 60 to 90 days, when the odds have already dropped significantly.

3. Cost on small invoices

On a EUR 500 invoice with a 30% agency commission, you keep EUR 350. Add the time for case handover and your net return barely justifies the effort. Small invoices are often never handed over at all, and those are exactly the ones that age into write-offs.

4. Dependence on an external party

You have no visibility into when the agency calls, what they say, or how they represent your business. Reporting is often limited to monthly summaries. That makes it hard to course-correct or recognize patterns in your receivables portfolio.

5. Limited resolution capabilities

A collection agency can collect or escalate. It can't negotiate a payment plan with knowledge of the customer's history. It can't resend an invoice via SMS while the customer is on the phone. It lacks the flexibility you need for the vast majority of overdue payments, where the problem is an oversight rather than unwillingness to pay.

In-house vs. outsourcing vs. automation

	In-house	Collection agency	AI automation
Cost	Staff time (hours/week)	15-50% of collected amount	Fixed monthly fee
Timing	Depends on capacity	Usually from day 60-90	From day 1
Control over tone	Full	Minimal	Full (configurable)
Scalability	Limited (30-50 calls/day)	Good	Unlimited
Customer relationship	Preserved	Risk of damage	Preserved
Insight into reasons	Yes (if you call)	Limited	Structured data
Best for	Low volume	Old, unreachable claims	All outstanding invoices

The honest conclusion: none of these options is perfect for every situation. In-house works if you have a small number of invoices and take the time to call. A collection agency makes sense for claims that have been sitting for months and where you've exhausted your own options. Automation fills the gap between the two: the daily follow-up work that takes too much time to do manually, but is too early to hand over to a third party.

Who should outsource accounts receivable?

The right choice depends on your business size and invoice volume. What works for a freelancer is different from what works for a mid-sized company with a finance team.

Freelancers and micro-businesses (1-5 invoices per month). You have few outstanding invoices, but every amount matters. A collection agency is too expensive for the volume and factoring eats into your margin. Calling yourself is feasible as long as you stay disciplined. The risk: the moment you get busy with client work, follow-up slides. For small businesses, automating accounts receivable is often the smartest move: low cost, no dependency, and nothing to remember.

Small to mid-sized businesses (10-200 invoices per month). This is the group that most often considers outsourcing. The bookkeeper or office manager spends hours each week chasing payments, but there are too many invoices to follow up on all of them consistently. A collection agency makes sense for receivables that are 60+ days overdue, but doesn't solve the daily problem. The best approach is software for early follow-up combined with an agency for the hard cases.

Larger SMBs and mid-market (200+ invoices per month). At this volume, manual calling doesn't scale. You need a structured process. The question isn't whether to outsource, but which part. Automate the daily reminders and first calls. Outsource the legal escalation and enforcement to a specialized agency. That way you keep control of customer relationships while having the capacity to follow up on every invoice.

Frequently asked questions about outsourcing AR

What's the difference between outsourcing AR management and outsourcing collections?

AR management covers the full invoice follow-up process: from the first reminder through to final payment or write-off. Outsourcing collections specifically means handing over receivables you can no longer collect yourself. The difference is timing: AR management starts on day 1, collections start when things have already gone wrong. In practice, you can automate the preventive part (reminders, calls, payment plans) and only outsource the legal part to a collection agency.

How much does outsourcing accounts receivable cost per month?

Costs range from EUR 45 to EUR 250 per month for a subscription model, to 15-50% of the collected amount with a no cure, no pay agency. Factoring costs 1-5% of invoice value. The actual cost depends on your receivables portfolio: the number of invoices, average amounts, and how old your claims are. Always factor in hidden costs: handover time, loss of customer knowledge, and the risk of relationship damage.

Can I partially outsource accounts receivable?

Yes, and for most businesses that's the smartest approach. You can keep daily follow-up (reminders, first call rounds, payment plans) in-house or automate it, and only hand over claims that are still open after 60 or 90 days to a collection agency. This preserves your control over customer relationships during the phase when they're most vulnerable.

Is AR software an alternative to outsourcing?

For the vast majority of your outstanding invoices, yes. Software can send reminders, make calls, offer payment plans, and give you insight into your receivables portfolio. The only thing software isn't suited for is legal action: bailiffs, court summons, asset seizure. For that part, a collection agency or legal advisor remains the right choice.

The AI alternative: automate instead of outsource

The reason most businesses consider outsourcing accounts receivable isn't that they can't do it. It's that they lack the capacity to follow up on every invoice consistently. The bookkeeper is busy. The owner is busy. So reminders go out late, phone calls get skipped, and small invoices get forgotten.

Modern accounts receivable software solves exactly that problem. Not by shifting the work to an external party, but by automating it within your own business.

At Dunwise, that automation goes beyond email reminders. Our AI voice agent calls every outstanding invoice on schedule. The tone adjusts automatically: friendly at 7 days, professional at 30, direct at 60. No collection agency script. A professional extension of your own finance team.

Customer says the invoice was never received? The agent sends it via SMS during the call. There's a dispute? The agent captures the details and routes them to your team. Customer promises to pay? The promise-to-pay is logged immediately, including date and amount.

The result: you keep control of your customer relationships, every invoice gets the follow-up it deserves, and your team stops spending hours on collection calls. Without the costs and risks of a collection agency.

Want to see how it works? Visit our product page or try the demo.