Where the chapter came from, and the company it keeps. 18 USC chapter 42 was added by Public Law 90-321, title II, section 202(a), on May 29, 1968. Title I of that same Act is the Truth in Lending Act. Congress addressed disclosure and extortionate lending in one statute, and its findings at section 201 explain why: "A substantial part of the income of organized crime is generated by extortionate credit transactions," and such transactions "are characterized by the use, or the express or implicit threat of the use, of violence or other criminal means to cause harm to person, reputation, or property as a means of enforcing repayment."
Three offenses, and the second one is the reason the chapter works. Section 892(a) reaches whoever "makes any extortionate extension of credit, or conspires to do so," with a maximum of twenty years. Section 893 reaches financing such lending. Section 894(a) is separate and independent: it reaches whoever "knowingly participates in any way, or conspires to do so, in the use of any extortionate means (1) to collect or attempt to collect any extension of credit, or (2) to punish any person for the nonrepayment thereof," again with a twenty-year maximum. So a person who had nothing to do with making the loan commits a federal crime by collecting it that way, and the underlying loan does not have to have been extortionate when it was made.
The four-factor test, and what it is and is not. Section 892(b) provides that if all four of the following were present, "there is prima facie evidence that the extension of credit was extortionate, but this subsection is nonexclusive and in no way limits the effect or applicability of subsection (a)":
First, that repayment "would be unenforceable, through civil judicial processes against the debtor" in the jurisdiction where the debtor resided or was incorporated at the time the credit was extended. This is the hinge that connects the criminal chapter to state usury law: a loan a state's courts will not enforce is the kind of loan that has to be collected some other way.
Second, that the credit "was made at a rate of interest in excess of an annual rate of 45 per centum calculated according to the actuarial method of allocating payments made on a debt between principal and interest, pursuant to which a payment is applied first to the accumulated interest and the balance is applied to the unpaid principal."
Third, that the debtor reasonably believed either that the creditor had used extortionate means on other loans, or that the creditor "had a reputation for the use of extortionate means".
Fourth, that the total credit outstanding from that creditor to that debtor, including unpaid interest or similar charges, "exceeded $100."
Two things follow. The 45 percent figure is not a threshold above which lending becomes criminal; it is one of four conditions that together shift the evidentiary burden. And because the subsection is expressly nonexclusive, the government is not confined to it: the offense is the understanding described in 891(6), which can be proved any way it can be proved.
The chapter's definitions are deliberately wide. "To extend credit" at 891(1) covers any arrangement, "tacit or express," by which repayment of a debt "whether acknowledged or disputed, valid or invalid, and however arising, may or will be deferred," which reaches informal arrangements that never resembled a loan agreement. "To collect an extension of credit" at 891(5) means "to induce in any way any person to make repayment thereof." And 891(3) defines "debtor" to include "any person who guarantees the repayment of that extension of credit, or in any manner undertakes to indemnify the creditor against loss," so someone who never received a dollar is inside the chapter's protection on the same terms as the borrower.
A practical note for anyone reading this because it describes their situation. The chapter is enforced by federal prosecutors, not by the borrower, and it creates offenses rather than a private remedy. The threats it describes are separately crimes under state law, reportable to local police, and the borrower's own conduct in taking the loan is not what the statute is aimed at.