Definition
Nova custuma (Latin: "new customs") refers to a class of duties or impositions levied on merchants, distinct from and generally higher than the older, established customs. In English fiscal and commercial history, the term designates the additional duties imposed on foreign merchants — particularly on wool, woolfells, and hides — beyond the rates applicable to native English merchants under the antiqua custuma. The nova custuma is therefore best understood not in isolation but in direct contrast to the antiqua custuma, the earlier and lower schedule of customs duties.
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Common Confusion
NOVA CUSTUMA vs. ANTIQUA CUSTUMA: These two terms form a paired system and are frequently referenced together in historical sources. The antiqua custuma (or "ancient customs") established the baseline duties on wool and related exports, fixed by statute in the late thirteenth century and applicable to English merchants and denizens. The nova custuma imposed an additional, higher duty on the same or related goods when the exporter was a foreign merchant or alien. Confusing the two leads to misreading the applicable rate and the class of merchant subject to the duty. The distinction between alien and denizen merchant status is the operative dividing line.
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Why It Matters in Research
This term appears almost exclusively in historical legal and fiscal sources dealing with medieval and early modern English customs law. Researchers will encounter nova custuma most often in records relating to wool exports, port books, exchequer accounts, and parliamentary statutes from roughly the late thirteenth through the early seventeenth centuries.
The chief research trap is treating nova custuma as a freestanding term. It has no meaning independent of the antiqua custuma framework. A source that mentions one almost always implies the other, and any analysis of the applicable duty rate requires identifying which schedule governed the particular merchant and transaction at issue.
Jurisdictional scope is effectively limited to England and, by extension, the English colonial fiscal apparatus in its earliest iterations. Researchers working in Scottish, Irish, or continental European legal history will not encounter this term in its technical sense.
The term also connects to the broader history of parliamentary taxation and the Crown's prerogative to impose duties on trade without statutory authorization — a contested question in medieval constitutional history. The nova custuma was at various points the subject of merchant resistance and parliamentary negotiation, situating it within the longer story of English taxation and representative government.
For corpus researchers: searches on nova custuma will return sparse results in most common law materials. The productive search path runs through exchequer records, wool staple regulations, and statutes addressing alien merchants rather than through case law or equity materials.
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Historical Dictionary Support
Both Black's Law Dictionary and the second edition entry are identically minimal: "The name of an imposition or duty. See ANTIQUA CUSTUMA." This cross-reference is the entirety of the historical dictionary treatment, and it accurately signals that the term is definitionally incomplete without its counterpart. Neither edition provides rate information, historical context, or the merchant-class distinction that gives the term its practical content.
The historical dictionaries are reliable as far as they go — the characterization as an "imposition or duty" is correct — but they give a researcher almost nothing to work with beyond confirmation that the term exists and a pointer to its paired concept. The absence of substantive treatment in Black's reflects the term's narrow historical application and its obsolescence in modern practice. Researchers requiring more than a label will need to look beyond dictionary sources to fiscal histories and primary exchequer materials.
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Jurisdictional Note
Nova custuma is a term of English legal and fiscal history with no operative force in modern law. It has no equivalent in American law and does not appear in the statutes or case law of any current jurisdiction. Its relevance is confined to historical research into medieval and early modern English customs administration.
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