Definition
Fil is an archaic English legal term for a collective tax formerly imposed upon cities, townships, and boroughs in England. The tax was assessed not against individual citizens but against the municipal unit as a whole — the city, town, or borough — and was calculated as a fifteenth part of the assessed value of the community, or equivalently a fifteenth of the aggregate personal property within it, according to an established valuation. The term is effectively a shorthand reference to the "fifteenth," a well-known form of medieval parliamentary taxation in England.
Common Language
Modern common usage (Wiktionary): An alternative form of "alfil," a chess piece term derived from Arabic.
Historical common usage (Webster's 1913): The past tense of "fall" (i.e., "fell"), attributed to Chaucer.
Neither the modern nor the historical common meaning bears any relationship to the legal term. "Fil" as a legal word is an artifact of abbreviated or contracted legal writing referring to the "fifteenth" tax assessment, and would not be recognized as such in ordinary English usage at any period. Researchers encountering "fil" in a legal manuscript context should not interpret it through any common-language lens.
Why It Matters in Research
Researchers working in medieval and early modern English legal records — particularly parliamentary rolls, borough records, subsidy rolls, and taxation manuscripts — may encounter "fil" as a contracted or abbreviated form referring to the "fifteenth." The risk of misidentification is real: a researcher unfamiliar with the term could mistake it for a clerical error, a personal name fragment, or a form of "file" in the procedural sense.
The "fifteenth" as a tax was a major feature of English fiscal history from at least the thirteenth century through the Tudor period, and records touching on borough finance, royal subsidies, or parliamentary grants frequently reference it. Burrill's entry locates the legal meaning of "fil" firmly within this tradition, citing Coke's Institutes and Blackstone's Commentaries as authoritative sources — both of which discuss the fifteenth in the context of England's older tax structures.
Corpus researchers should also be alert to the related term "tenth and fifteenth," a paired tax levy that appears frequently in parliamentary records and subsidy rolls. In that context, the "fifteenth" applied to rural communities and the "tenth" to boroughs and royal demesne lands — a distinction that complicates any assumption that "fil" always refers to a single uniform rate. Historical sources may use "fil," "quindecima," or "fifteenth" interchangeably, and the abbreviated form is most likely to appear in Latin or Anglo-Norman legal documents.
Because "fil" has no living legal meaning — it is purely historical — it will not appear in modern statutory or case law. Its research value is confined to the Law Mind historical corpus.
Historical Dictionary Support
Burrill's Law Dictionary is the sole source dictionary for this entry, and its treatment is brief but precise. Burrill defines "fil" by reference to the collective nature of the assessment (city, township, or borough as the taxable unit, not individual persons) and anchors the rate at one-fifteenth of assessed value. He cites Coke's Second Institutes (2 Inst. 77), Blackstone's Commentaries (1 Bl. Com. 308–309), Camden's Britannia (Camd. Brit. 168, 171), and Cowell's legal dictionary — a strong and cross-referencing set of authorities for an entry of this brevity.
The citation to Camden's Britannia is notable: Camden was writing topographical and antiquarian history, not law, which signals that by Burrill's time "fil" was already understood as a term requiring historical rather than doctrinal explanation. The presence of Cowell (John Cowell's Interpreter, a legal dictionary of the early seventeenth century) suggests the term had a continuous life in legal lexicography from the Stuart period through the nineteenth century, even as it fell out of practical use.
No modern legal dictionary carries the term. Researchers should not expect agreement or elaboration from other historical sources in this corpus.
Jurisdictional Note
"Fil" as a legal tax term is specific to English legal history. It has no counterpart in American, Scottish, or Irish law as a distinct term, though the concept of collective municipal taxation has analogues in various jurisdictions. Research utility is limited to English historical records.