How do recovery rates change with debt age?
The longer an invoice sits unpaid, the less likely recovery becomes. Agency recovery rates drop sharply with age:
0–30 days overdue: 80–90% recovery rate. Most customers pay quickly when contacted.
31–60 days overdue: 50–70% recovery rate. Default is intentional or financial stress.
61–90 days overdue: 30–50% recovery rate. Customers show little urgency; may dispute invoice or claim insolvency.
90+ days overdue: 5–20% recovery rate. Accounts may be uncollectible. Agencies focus on larger amounts or clear disputes only.
The math is stark: waiting 90 days to escalate reduces recovery by 70–80%. Act within 60 days for best results.
How much does a collection agency cost?
Most collection agencies operate on a contingency fee basis: they take a percentage of what they recover. You pay nothing if they fail. Typical fee structures:
- Contingency fee (standard): 25–50% of recovery, depending on account age and size. Fresh debt is cheaper (25–33%); older debt costs more (40–50%).
- Flat fee (rare): $500–$2000 per account, regardless of recovery. Avoid these unless you have many accounts or a large average balance.
- Upfront fee (red flag): Some agencies charge $200–$500 upfront before work begins. This is predatory and wastes money if recovery fails. Stick with contingency.
ROI Calculation
Is it worth sending an invoice to an agency? Do the math: If you're owed $1,000 and the recovery rate is 40%, the agency recovers $400. At 35% contingency, you keep $260. If internal attempts have failed, $260 is better than $0.
For smaller balances ($100–$500), recovery rates drop and contingency fees often eat the entire upside. Consider write-off instead. For larger balances ($5,000+), agency escalation almost always makes sense.
Decision Timeline
Days 0–30: Internal collection
Send friendly reminders, make follow-up calls, offer payment options. Recovery rates are highest now. See How to Collect Overdue Invoices for a full script.
Days 30–60: Escalate to formal demand
Send a formal demand letter or certified email. At this point, many customers respond. For others, you're documenting that formal collection attempts have been made (required by agencies).
Days 60–90: Make the decision
Evaluate: Is the amount worth the agency fee? Is the customer creditworthy? Has internal collection failed? If yes to all, refer. Recovery rates remain decent (30–50%) at this stage. Waiting longer dramatically reduces ROI.
Days 90+: Last resort
Agency recovery rates drop below 15%. At this point, consider write-off for tax purposes or litigation if the amount justifies attorney fees ($2,000–$10,000+). Most invoices 90+ days old become uncollectible.
Preparing a Referral Package
Collection agencies need clean, documented cases to succeed. Prepare a comprehensive escalation package before referral:
- Original invoice: Copy of the signed purchase order or contract showing payment terms, invoice number, amount, due date.
- Proof of delivery: Email delivery receipt, signed shipping label, or service completion confirmation. Shows work was done and invoice is legitimate.
- Payment history: If customer has paid other invoices, include those dates to show they are sometimes responsive.
- Contact information: Current mailing address, email, phone, and any known business contacts. The more addresses, the higher the agency's ability to locate and contact the debtor.
- Collection history: Dated log of every phone call, email, letter sent. Document who was contacted, what was said, what they promised. Shows the agency what has already been attempted.
- Dispute or acknowledgment: If customer disputes the invoice or acknowledged the debt, include that communication. It clarifies the agency's approach.
- Late fees or interest: If your contract includes late fees or interest, calculate and include what is owed. Agencies will pursue the full amount.
A complete package doubles agency success rates. Incomplete packages get low priority or are rejected.
Finding and Vetting Agencies
Not all collection agencies are equal. Look for:
- Licensed and bonded: Check state licensing. Verify they're in compliance with Fair Debt Collection Practices Act (FDCPA) or equivalent local law.
- Contingency-based: Prioritize agencies that work on commission, not upfront fees.
- References: Ask for 3–5 recent client references. Call them. What were their recovery rates? How was their experience?
- Specialization: Some agencies specialize in B2B receivables, others in consumer debt. Choose a fit for your customer type.
- Technology: Do they have a portal to track cases? Regular updates? Transparency matters.
See our Partners page for vetted collection agencies and escalation partners.
After Referral
Once an agency takes your account, you typically:
- Stop contact: Let the agency handle all communication. Continued direct contact can interfere and violate the agency agreement.
- Provide support: Answer agency questions about the account history or customer contact info. Respond quickly to increase recovery odds.
- Track progress: Most agencies provide monthly reports. Review and follow up if months pass with no activity.
- Expect 60–120 days: Agencies typically work an account for 90–120 days before concluding it's uncollectible. Be patient but hold them accountable.