Definition
Debts are legally enforceable obligations to pay a sum of money owed by one party (the debtor) to another (the creditor). The obligation arises from contract, statute, judgment, tort, or operation of law. A debt presupposes a definite or readily ascertainable sum; an unliquidated claim for damages is not technically a debt until reduced to judgment or agreement.
Several distinct legal contexts give the term operational meaning:
1. Contract debts: Sums owed under an agreement — a loan principal, an unpaid invoice, a rent arrearage.
2. Judgment debts: Amounts fixed by a court's final judgment, which carry distinct enforcement rights (execution, garnishment, lien).
3. Statutory debts: Obligations imposed by law independent of agreement, such as tax liabilities or statutory penalties.
4. Secured vs. unsecured debts: A secured debt is backed by collateral; an unsecured debt is not. This distinction governs priority in bankruptcy and insolvency proceedings.
5. Joint and several debts: Debts for which multiple obligors are each individually liable for the full amount, as well as collectively.
Common Language
Modern common usage (Wiktionary): Plural of debt — sums of money owed by one person to another.
Historical common usage (Webster's 1913): Debts were understood as the plural of debt, defined as that which is owed; an obligation or liability to pay or render something.
The gap between common and legal usage is modest but real. In ordinary speech, "debts" is loose enough to include moral obligations, social favors, and informal promises. In law, the term requires a legally cognizable obligation — one that can be pursued in a court of law. The enforceability threshold is what separates a legal debt from a mere moral or social one.
Recognized Forms
/SUBTYPES
Antecedent debt: A pre-existing obligation. Significant in bankruptcy and secured transactions, where a transfer made to satisfy an antecedent debt may constitute a voidable preference.
Contingent debt: An obligation that becomes payable only upon the occurrence of a future event. Distinguished from a fixed or liquidated debt for purposes of bankruptcy proof of claim.
Liquidated debt: A debt of a certain, fixed, or easily calculable amount.
Unliquidated debt: A debt whose amount is disputed or not yet determined; generally not enforceable as a debt until fixed by agreement or judgment.
Priority debt: In insolvency proceedings, a debt entitled to payment ahead of others by statute — such as taxes, wages, or secured obligations.
Why It Matters in Research
The term "debts" appears across multiple discrete bodies of law — contract, bankruptcy, family, corporate, and constitutional — and it does not mean the same thing in each. A researcher working across these areas must anchor the term to its doctrinal home before applying any definition.
In bankruptcy research, the Code's definition of "debt" (a liability on a claim) is deliberately broad and may capture obligations that would not qualify as debts under common law. Historical sources predate this statutory expansion and will not reflect it.
In constitutional research, Article I, Section 8 gives Congress the power to establish uniform laws on bankruptcies, and the Contracts Clause has historically interacted with state debt relief laws in complex ways. Neither historical dictionaries nor modern treatises consistently flag this constitutional layer when defining debts in isolation.
In family law, the allocation of marital debts at divorce involves equitable principles that vary sharply by jurisdiction. A creditor is not necessarily bound by a divorce decree's allocation of debt responsibility, a point that catches researchers off guard when they assume that a "marital debt" assigned by court order extinguishes the original creditor's rights against the non-assigned spouse.
In corporate finance, debt instruments — bonds, debentures, notes — are regulated securities as well as contractual obligations. Research into debt securities requires moving between commercial law and securities regulation simultaneously.
Historical sources will use "debts" freely in the context of debtor-creditor relations, but they predate modern consumer protection law, the Fair Debt Collection Practices Act, and the Uniform Commercial Code's treatment of secured claims. Gap-fill carefully.
Historical Dictionary Support
Rapalje & Lawrence treat debts primarily through the lens of debtor-creditor relations and liquidation practice. Their entry on DEBTOR defines the term as a person who owes a debt, and their discussion of the English "liquidating debtor" — a person whose affairs are being wound up by arrangement — parallels the modern bankrupt in status. The analogy to discharged and undischarged bankrupts is useful: it signals that the practical consequences of debt — loss of credit standing, restrictions on commercial activity, discharge of obligations — have long been understood as a status question, not merely a balance-sheet one.
The Rapalje & Lawrence reference to a bond conditioned to pay pro rata each creditor "according to his degree" reflects the historical priority system in which creditors were ranked by class, a concept that survives in modern bankruptcy priority rules. The phrase "according to his degree" echoes the preference law that courts still apply when determining which debts get paid first in insolvency.
What historical dictionaries miss: They do not address the modern statutory architecture around debt collection, the consumer protection framework, or the treatment of contingent and unliquidated claims under the Bankruptcy Code. Researchers relying solely on historical definitions will underestimate how far the law has moved toward protecting debtors as well as creditors.
Jurisdictional Note
The distinction between secured and unsecured debts, and the priority rules governing their payment in insolvency, are largely governed by federal bankruptcy law uniformly across states. However, state law controls whether a debt exists in the first place and what exemptions a debtor may claim. Community property states treat marital debts differently from common law property states, which directly affects allocation at divorce and liability to creditors.
Encyclopedia Cross-Reference
Contracts & Commercial Law Encyclopedia — Consumer Protection: Debt Collection and Garnishment Limitations
Business Organizations & Corporate Law Encyclopedia — Corporate Finance: Debt Securities (Bonds, Debentures, Notes)
Family Law Encyclopedia — Marital Property: Debts and Liabilities (Allocation Between Spouses)