Definition
A taxer is an officer with authority to assess, rate, or estimate — historically appearing in two distinct legal contexts:
1. (Court procedure) An officer authorized to tax costs — that is, to examine a bill of costs submitted in litigation and determine the amount properly allowable. In this sense, the taxer exercises a quasi-judicial function, scrutinizing claimed fees and disbursements against applicable rules and scales before a final costs order takes effect.
2. (University/municipal regulation) At Cambridge University and in certain English boroughs, one of two officers elected annually to supervise the assize of bread and ensure the accuracy of weights and measures. This officer held regulatory and enforcement authority over local trade standards.
The term derives from the Anglo-French legal verb taxer — to tax, assess, or rate — and appears in medieval English legal records in both procedural and administrative senses.
Common Language
Modern common usage (Wiktionary): One who taxes; alternatively, one of two officers chosen yearly to regulate the assize of bread and to see the true gauge of weights and measures is observed.
Historical common usage (Webster's 1913): One who taxes; one of two officers chosen yearly to regulate the assize of bread, and to see the true gauge of weights and measures is observed. Also written taxor.
The common definitions here are unusually close to the legal ones — but the gap worth noting is that modern readers will understand "one who taxes" to mean a government authority imposing revenue taxes. In legal procedure, a taxer has nothing to do with revenue. The taxer taxes costs, not taxpayers, and operates as a court officer reviewing litigation expenses. The fiscal and procedural senses of the word have almost entirely diverged in modern usage.
Common Confusion
TAXER vs. TAXING MASTER vs. TAXOR: These terms cover overlapping ground. In English practice, the officer who taxes costs in superior courts came to be called the Taxing Master — a formalized, senior role. Taxer and taxor are older or more general variants pointing to the same function at lower levels or in earlier periods. Researchers should not assume these titles describe identical offices across time or jurisdiction; the institutional weight behind each varied considerably.
TAXER vs. ASSESSOR: Both terms involve estimating or rating value, but an assessor in modern usage typically works in property valuation for revenue purposes. A taxer in the costs sense evaluates litigation disbursements, not property. Conflating the two in historical research will produce misdirected results.
Why It Matters in Research
The core research trap with taxer is the false cognate problem: the word looks like it belongs to tax law, but its primary legal significance is procedural — costs taxation in litigation. A researcher hunting for taxer in a historical pleadings file or court record will almost certainly be looking at a costs context, not a revenue context.
The university officer sense (Cambridge assize of bread) is historically genuine but institutionally narrow. It surfaces in records of Cambridge University governance and borough regulation, not in general legal proceedings. Researchers working on medieval or early modern English trade regulation, guild oversight, or university administration should note this usage, but it will rarely appear outside those specific documentary contexts.
For costs research: the vocabulary of "taxing" costs — taxer, taxor, taxing master, taxation of costs — is a connected cluster. Burrill's entry gestures toward the French-law lineage (the Anglo-French taxe, taxes, taxed), which is useful for tracing the procedural concept through Norman and Plantagenet legal records into common law practice.
Burrill's example — Et solonc la value annuele soyent taxes les damages par les justices, singles ou doubles — places the term squarely in the assessment-of-damages context by justices, illustrating how the estimating/rating function applied not only to costs but to damages quantification in early English legal practice.
Historical Dictionary Support
Burrill's Law Dictionary is the sole historical dictionary source here, and it focuses on the Anglo-French verbal root (taxer, taxe) rather than providing a full institutional account of the officer. The entry is useful for establishing the Norman French pedigree of the term and its application to judicial assessment of damages, but it does not address the costs-taxation procedural officer in any depth, nor does it distinguish the Cambridge University usage.
Webster's 1913 captures the university officer sense with precision — including the variant spelling taxor — but treats it as a curiosity of Cambridge governance rather than a legal office. Neither source fully bridges the procedural costs-taxation meaning and the university regulatory meaning, leaving researchers to synthesize across institutional contexts.
What historical sources miss: the development of the Taxing Master as a formalized English court office, and the eventual replacement of informal taxer/taxor terminology with that more bureaucratically defined role. Researchers relying only on Burrill or Webster's will not see that evolution.
Jurisdictional Note
The costs-taxation officer (taxer/taxor/taxing master) is primarily an English common law institution. American courts developed their own mechanisms for reviewing bills of costs, typically through the clerk of court or a designated judicial officer, without adopting the taxer terminology in any consistent way. Researchers working in American jurisdictions should expect different vocabulary and different procedural structures for the same underlying function.