Accounts receivable collections is the process a business uses to recover money customers owe on unpaid invoices, moving from friendly reminders through formal demand letters and, if needed, to a third-party collection agency, all within federal and state rules that limit how the debt can be pursued. Every open invoice is effectively a short-term loan the business has extended, and the collections process is what turns those IOUs back into working capital. How the process is run, and how closely it follows the law, decides whether a company gets paid and whether it creates legal exposure on the way.
How an Unpaid Invoice Moves Through the Collections Process
The clock starts with the invoice itself. Terms like “Net 30” or “Net 60” set the contractual deadline, and some businesses include early-payment discounts such as “2/10 Net 30,” which takes 2% off the balance if the customer pays within ten days. Whatever the terms say, the day after the due date is when a receivable turns from current to overdue.
Most businesses sort overdue invoices into aging buckets: 1–30 days past due, 31–60 days, 61–90 days, and beyond. The probability of collecting drops sharply after 90 days, so the effort in the first few weeks matters more than most companies treat it.
Early follow-up is usually low-key. A polite email or phone call five to ten days after the due date resolves most late payments, because the cause is often a lost invoice or an internal processing delay rather than any refusal to pay. At 30 days overdue, a more formal reminder goes out restating the amount and the original terms. Between 60 and 90 days, the tone shifts to demand letters that document the effort and build a paper trail.
By 120 days, the business faces a decision: keep working the account internally, hand it to a collection agency, or write it off. Waiting longer costs money twice, because the company loses the revenue and continues to spend staff time chasing it.
Measuring Whether Collections Is Working
The standard yardstick is days sales outstanding (DSO), the average number of days it takes to collect after a credit sale. The formula divides accounts receivable by total credit sales for a period, then multiplies by the number of days in that period.
Lower is better. A DSO of 30 to 45 days is a solid benchmark in many industries, indicating cash is flowing in close to the payment terms. A DSO that creeps above 60 days points to slow-paying customers, slow internal follow-up, or both. Tracked month over month, DSO reveals trends before they become crises: a sudden spike can mean a major customer is in financial trouble or that the collections team is understaffed.
When to Hand an Account to a Collection Agency
Collectors fall into two camps. First-party collectors are employees of the company that issued the invoice. They contact the customer under the company’s own name, and their primary goal is to recover the money without destroying the business relationship. Because they know the customer’s history and the transaction details, they can often resolve disputes or set up payment plans faster than an outsider.
When internal efforts stall, usually somewhere between 90 and 180 days, the business may place the account with a third-party collection agency. These firms operate under their own names and focus entirely on debt recovery. They typically charge on contingency, taking a percentage of whatever they collect. That percentage varies with the age of the debt: invoices 60 to 90 days overdue might cost 15% to 25%, while accounts older than six months can run 30% to 50%. Some agencies offer flat-fee arrangements for large-volume clients, but contingency is the industry standard.
Placing an account with an outside agency changes the dynamic. The customer now hears from a stranger, so most businesses treat it as a last resort for accounts where the relationship is already damaged or the customer has stopped responding.
Consumer Debt Versus Commercial Debt
Federal collection law draws a sharp line between the two, and the line matters more than most business owners realize. The Fair Debt Collection Practices Act defines “debt” as money owed from a transaction for personal, family, or household purposes, so business-to-business invoices generally fall outside the FDCPA.1Office of the Law Revision Counsel. 15 U.S. Code 1692a – Definitions The statute also protects only “consumers,” defined as natural persons; a corporation, LLC, or partnership that owes on a commercial invoice is not a consumer under the law.
That doesn’t mean anything goes when collecting commercial debt. State-level unfair business practices laws and contract law still apply. But the specific federal guardrails below govern consumer accounts, and a business that sells to both individuals and other companies needs separate collection playbooks for each.
What the FDCPA Requires of Debt Collectors
One threshold matters before anything else: the FDCPA applies to third-party debt collectors, not to original creditors collecting their own debts. An internal A/R team calling its own customers is generally exempt. That exemption disappears if the company uses a fake name that makes the call look like it’s coming from a third party.1Office of the Law Revision Counsel. 15 U.S. Code 1692a – Definitions
For covered collectors, the rules are specific. They cannot call before 8:00 a.m. or after 9:00 p.m. in the consumer’s local time zone, and they cannot call the consumer’s workplace if they know the employer prohibits it.2Office of the Law Revision Counsel. 15 U.S. Code 1692c – Communication in Connection With Debt Collection Repeated calls designed to annoy or harass are prohibited.3Office of the Law Revision Counsel. 15 U.S. Code 1692d – Harassment or Abuse Threatening legal action the collector doesn’t actually plan to take, misrepresenting the amount owed, or implying the consumer could be arrested for the debt are all forbidden.4Office of the Law Revision Counsel. 15 U.S. Code 1692e – False or Misleading Representations
A consumer can send a written request telling the collector to stop contacting them, and the collector must comply. The only permitted follow-ups are a final notice that collection is ending or a notice that the creditor intends to pursue a specific legal remedy such as filing a lawsuit.2Office of the Law Revision Counsel. 15 U.S. Code 1692c – Communication in Connection With Debt Collection
Call Frequency Under Regulation F
The Consumer Financial Protection Bureau’s Regulation F, which took effect in November 2021, gave the harassment rule a concrete number. A collector is presumed to violate the law if it calls a consumer more than seven times within seven consecutive days about a particular debt, or calls again within seven days after an actual phone conversation about that debt.5Consumer Financial Protection Bureau. 1006.14 Harassing, Oppressive, or Abusive Conduct Staying under those limits creates a presumption of compliance, though fewer calls could still violate the general harassment standard depending on the circumstances.
Regulation F also confirmed that collectors may use email, text messages, and social media direct messages, but must include opt-out instructions in electronic communications. Modern collection operations now blend phone, email, and text outreach while tracking contact frequency per account to stay within the safe harbor.
The Validation Notice
Within five days of first contacting a consumer, a debt collector must send a written validation notice. It has to state the amount of the debt, name the creditor, and inform the consumer that they have 30 days to dispute the debt in writing. If the consumer disputes within that window, the collector must pause collection activity until it sends verification of the debt or a copy of a court judgment.6Office of the Law Revision Counsel. 15 USC 1692g – Validation of Debts
This is where many collection efforts fall apart. Agencies that skip the notice or keep collecting during a dispute period expose themselves to liability, and the business that hired them absorbs the reputational damage and some of the legal risk. Due diligence in picking an agency matters more than most companies treat it.
Penalties for Violating Collection Laws
A collector that violates the FDCPA faces liability for the consumer’s actual damages plus statutory damages of up to $1,000 per lawsuit for individual claims. In a class action, the cap rises to the lesser of $500,000 or 1% of the collector’s net worth. Courts can also award attorney’s fees and costs to the consumer who wins.7Office of the Law Revision Counsel. 15 U.S. Code 1692k – Civil Liability
The $1,000 statutory cap sounds small, but the real exposure comes from the fee-shifting provision, which makes these cases economically viable for plaintiffs’ lawyers even when actual damages are minimal. For an agency handling thousands of accounts, a pattern of violations produces cumulative liability that adds up quickly.
Reporting a Delinquent Account to the Credit Bureaus
Once an account is placed for collection, internally or externally, it can be reported to the major credit bureaus. Under the Fair Credit Reporting Act, a collection account can stay on a consumer’s report for up to seven years. The clock starts 180 days after the account first became delinquent, not on the date it was placed with a collection agency.8Office of the Law Revision Counsel. 15 U.S. Code 1681c – Requirements Relating to Information Contained in Consumer Reports
Any company or agency that reports a delinquent account must notify the bureau of the original delinquency date within 90 days of furnishing the information. Getting that date wrong can illegally extend the reporting period and create FCRA liability. Accurate record-keeping from the first day of delinquency is what protects the creditor later.
State Statutes of Limitation
Every state sets a deadline for filing a lawsuit to collect an unpaid debt. Statutes of limitation typically run three to six years for most contract-based debts, though a handful of states allow up to ten or fifteen years depending on the type of agreement. Written contracts and promissory notes usually get longer windows than oral agreements or open-ended accounts.
When the statute expires, the debt doesn’t vanish. The customer still owes the money. But the creditor loses the ability to sue, which removes the strongest collection leverage. A collector who threatens suit on a time-barred debt violates the FDCPA’s prohibition on threatening action that cannot legally be taken.4Office of the Law Revision Counsel. 15 U.S. Code 1692e – False or Misleading Representations
One trap: in many states, a partial payment or written acknowledgment of the debt restarts the clock, giving the creditor a fresh window. Businesses working old receivables need to know their state’s rule before accepting a partial payment on an account near the limitation deadline.
Writing Off and Deducting Uncollectible Accounts
When a business decides an account will never be paid, it writes off the balance. Companies that maintain an allowance for doubtful accounts absorb the write-off against that reserve, so the income statement isn’t hit at that moment because the expense was already recognized when the reserve was built. Companies without a reserve take the write-off directly as a bad debt expense in the current period. Either way, the point is to stop carrying dead receivables on the books and give an honest picture of what the company actually expects to collect.
A written-off receivable may qualify as a tax deduction. Accrual-method businesses can deduct bad debts because they already reported the underlying sale as income. Cash-method taxpayers generally cannot deduct unpaid receivables because they never reported the income to begin with.9Internal Revenue Service. Topic No. 453, Bad Debt Deduction
The IRS separates business bad debts from nonbusiness bad debts. A business bad debt arises from a transaction connected to the taxpayer’s trade or business and is deductible as an ordinary loss. A nonbusiness bad debt must be entirely worthless before it’s deductible and is treated as a short-term capital loss.10GovInfo. 26 USC 166 – Bad Debts Most unpaid invoices qualify as business bad debts.
To claim the deduction, the business must show it took reasonable steps to collect and that the debt became worthless during the tax year. Going to court isn’t required, but the company needs to demonstrate that further collection would be pointless. A well-documented collection timeline is what supports the deduction if the account ends up being written off.9Internal Revenue Service. Topic No. 453, Bad Debt Deduction
Agency Licensing Before You Place an Account
Most states require third-party collection agencies to be licensed before operating within their borders. Requirements and fees vary widely. Roughly 20 states either don’t require a license or don’t charge a fee, while the rest charge application and renewal fees ranging from under $100 to over $1,000. Before placing accounts with an agency, the hiring business should verify licensure in every state where the agency will contact debtors. Using an unlicensed agency can render the collection effort unenforceable in some jurisdictions and expose the hiring company to liability of its own.