Use a collection agency once an invoice is 60 to 90 days past due and your own follow-up calls have stopped working. Handle collection in-house for anything newer than that, since agencies take a cut of whatever they recover and your own relationship with the customer often still has value.
When In-House Collection Still Makes Sense
Most overdue invoices get paid with a simple, direct approach. A phone call, a firm email, and a clear final due date solve more cases than people expect. In-house collection keeps the relationship intact and costs nothing beyond your own time.
- 0 to 30 days late. A friendly reminder is usually enough.
- 30 to 60 days late. A firmer email or call, with a specific new due date.
- 60 to 90 days late. A final written notice stating what happens next if payment doesn’t arrive.
If a customer goes silent or keeps making promises they don’t keep, that’s your signal to escalate.
When to Bring in a Collection Agency
| Signal | What It Means |
|---|---|
| Invoice is 90-plus days past due | Recovery odds drop fast the longer an invoice sits unpaid |
| Customer stopped responding entirely | You’ve lost the ability to negotiate directly |
| You no longer need the relationship | Less reason to protect goodwill over getting paid |
| The amount owed justifies the agency fee | Agencies typically keep 20 to 50 percent of what they recover |
What a Collection Agency Actually Does
A collection agency takes over communication with your customer. They send formal notices, make calls, and in some cases pursue legal action on your behalf. Agencies work on contingency in most cases. This means they only get paid if they actually collect. That aligns their incentive with yours.
Ask any agency you consider for their average recovery rate and their fee structure in writing before signing an agreement. Rates vary a lot between agencies, and the cheapest fee doesn’t always mean the best result.
Protecting Cash Flow While You Wait to Collect
Unpaid invoices strain your cash flow even when you’re confident the money is coming eventually. If overdue receivables are creating a real cash gap right now, working capital loans can bridge that gap while collection plays out. This keeps your operations running without waiting on a slow-paying customer.
If unpaid receivables have piled up alongside other debt and payments feel unmanageable, look into business debt consolidation as a separate, longer-term fix. Collection solves the receivables side. Consolidation solves the payment side. They address different problems.
Documentation That Speeds Up Recovery
Whether you handle collection yourself or hand it to an agency, documentation matters. Keep the signed contract or purchase order, every invoice you sent, and a full record of your follow-up communication. Agencies and courts both move faster with a clean paper trail. A missing signature or an unclear original agreement can stall recovery for months.
What to Avoid
- Threatening language. Debt collection is regulated. Aggressive threats can create legal exposure for your business.
- Waiting too long to escalate. Recovery odds drop sharply after 120 days past due.
- Choosing an agency by price alone. A low fee means little if their recovery rate is also low.
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Frequently Asked Questions
How much does a collection agency typically charge?
Most agencies charge 20 to 50 percent of whatever they recover, working on contingency so you don’t pay unless they succeed.
Can I still collect on an invoice after 6 months past due?
Yes, but your odds drop the longer it sits unpaid. Older debt is still collectible, just harder to recover in full.
Will using a collection agency damage my relationship with a customer I want to keep?
It can. That’s the main reason to reserve agencies for accounts where the relationship isn’t worth protecting anymore.
What’s the difference between a collection agency and a debt buyer?
A collection agency works on your behalf and you keep ownership of the debt. A debt buyer purchases the debt from you outright, usually for a fraction of its value, and keeps whatever they recover.
Do I need a lawyer instead of a collection agency?
Not usually, unless the amount is large or the customer disputes the debt. Most straightforward overdue invoices don’t require legal action.