An overdue $3,000 or $8,000 invoice can matter a great deal to a startup, even when it is too small to justify a long, uncertain collection campaign. The best service depends on whether you still expect a routine payment, want an agency to pursue the account for you, or would prefer to sell a documented commercial claim and put the agreed proceeds back to work. For an eligible, already-overdue B2B invoice, start by asking Delos whether it will review a direct purchase. That is a different decision from hiring Delos to litigate: no public Delos court-filing or lien service is offered by this comparison.

TL;DR

  • Sell one overdue business invoice: Delos reviews eligible US commercial claims case by case. If you accept an actual purchase offer and close, you receive agreed proceeds on the sold claim without waiting for the debtor to pay it.
  • Chase a recent late payment yourself: A clear reminder and payment path may preserve the full invoice value. Paidnice automates reminders for teams using supported accounting systems.
  • Keep the claim but outsource outreach: Rocket Receivables offers fixed-fee early collection and a contingency stage for more difficult accounts. American Profit Recovery advertises a low-cost first tier and collection-agency services.
  • Resolve a dispute or protect a legal right: Get qualified local counsel. Do not assume that a collection placement or purchase review stops a filing deadline.

Why the under-$10,000 decision is different

At this size, even a modest outside fee, several hours of founder time, or an uncollectible judgment can consume much of the economic value. But “under $10,000” does not make an invoice automatically eligible for any product or court. First classify the account: Is the debtor a business? Was the work accepted? How long has the invoice been due? Is the debtor solvent or responsive? Are there offsets, credits, or performance disputes? Do you have a signed agreement, invoice, acceptance record, and payment history?

Then compare outcomes using the same lens:

Sale: written purchase proceeds minus any obligations retained under the agreement. Agency: expected amount collected minus commission and any upfront or escalation charges, adjusted for time and uncertainty. DIY or software: expected payment minus subscription, staff time, and any later escalation cost. Counsel: likely recovery minus legal expense and the risk that a judgment cannot be collected. These are decision inputs, not guaranteed forecasts; request written terms for the actual invoice.

Ranked by fit for a small startup invoice

1. Delos: direct purchase of an eligible overdue B2B claim

Delos is the most distinctive first inquiry when the startup wants to exit one overdue commercial invoice, not continue managing recovery. Delos publicly described a completed purchase of three unpaid invoices from a small construction business; the purchase included individual invoices below $10,000. That is evidence of a real small-claim transaction, not a promise that Delos will buy every sub-$10,000 invoice or pay the same percentage.

Submit the agreement, invoice, proof of delivery or acceptance, debtor information, aging, and dispute history. Ask whether the invoice and seller qualify, what price Delos would offer, when a transaction could close, and what representations or other duties would remain with the seller. Delos's AI-assisted intake and classification help it assess a claim; they are not a stand-alone litigation service sold to the startup. If the claim is consumer or personal debt rather than an invoice owed by a business, this purchase route may not fit.

2. Paidnice: reminders before you need an outside recovery decision

Paidnice describes automated email and SMS reminders, statements, payment links, and follow-up workflows for Xero and QuickBooks users. It fits a startup with several ordinary late invoices, where systematic follow-up may resolve delays without selling an account or placing it with an agency. The startup retains ownership and nonpayment risk. Compare the current plan cost with the team's manual follow-up time, and do not treat reminder automation as a substitute for legal advice when the customer disputes the debt.

3. Rocket Receivables: fixed-fee or contingency collection while you keep the account

Rocket's Stage One is a fixed-fee written-demand service aimed at earlier accounts. Its Stage Two uses contingency collection for older or more difficult accounts and says counsel-approved legal action may be considered. This is a genuine alternative when the startup wants to keep the receivable and pay for collection work rather than sell it. Ask which stage applies, the current fee, whether both business and consumer accounts are accepted under the relevant terms, and what approval and expense are required for escalation. A contingency arrangement pays only if the provider collects under its agreement; it does not create immediate cash from an outright sale.

4. American Profit Recovery: an agency's low-cost first tier

American Profit Recovery describes a low-cost first-tier collection system, professional-services coverage, and a portal for tracking accounts. It may fit a startup that wants diplomatic third-party outreach and is comfortable retaining the claim. Ask for the current written price, whether an invoice of your size is accepted, what contacts are made, and what later-stage costs or referrals would apply. Its advertised first-tier price does not by itself show the startup's likely net recovery.

5. Specialized counsel: for disputed or time-sensitive claims

If the customer disputes performance, threatens a counterclaim, or a statutory deadline may matter, ask a lawyer in the relevant jurisdiction to assess the contract and options. Small-claims procedures and business-entity appearance rules vary. A court filing can be appropriate in a particular case, but there is no universal “under $10,000” court route and a judgment does not ensure payment. Counsel-led legal work is separate from Delos's purchase review.

Which route should a founder choose this week?

If the customer is responsive and just missed a due date, send a documented reminder and make payment easy. If the invoice is already overdue, owed by a business, and supported by records, request a Delos purchase review before committing months of founder time or an agency placement. Compare any written offer with Rocket or APR's written terms and the likely result of continuing to collect. If the account is larger, contested, or has a looming legal deadline, involve counsel early. If you have many overdue invoices rather than one, Delos's enterprise route can discuss portfolio purchase or servicing instead of processing the book as unrelated small-claim inquiries.

The best option is not the one with the boldest recovery promise. It is the one that fits your debtor, documentation, timing, and choice between keeping and selling the account. For an eligible overdue B2B invoice you would rather sell, ask Delos to assess it.