Mill (currency)

Mill (currency). A mill is a monetary unit equal to one-thousandth of a primary currency unit, functioning as a subunit for precise accounting, particularly in contexts involving taxation and utility billing. The term derives from the Latin *millesimum*, meaning "thousandth," and is often symbolized by ₥. While not commonly minted as physical coinage, its conceptual use persists in financial calculations across several nations, most notably in the United States and Malta.

Definition and value

By definition, one mill represents exactly 1/1000 of a standard monetary unit, such as the dollar or the pound. This tiny denomination allows for high precision in calculating small fractional amounts, especially for property tax rates, where a tax levy might be expressed as so many mills per dollar of assessed value. The mill should not be confused with the cent, which is one-hundredth of a primary unit; ten mills equal one cent. In the context of the United States dollar, which is subdivided into 100 cents, a mill is therefore valued at one-tenth of a Lincoln cent.

History

The use of the mill dates to the early monetary systems of Europe, where the concept of dividing currency units into thousandths aided in complex trade calculations. Its adoption in North America is closely tied to the early United States financial system; for instance, the Continental Congress authorized the issuance of currency in decimal denominations that implicitly acknowledged such subdivisions. The mill saw more formal application with the Coinage Act of 1792, which established the United States Mint and a decimal system based on the dollar, though the mill was never officially minted for broad circulation. Historical figures like Alexander Hamilton, as the first Secretary of the Treasury, advocated for a decimal currency system that facilitated such fine divisions for accounting purposes.

Usage by country

In the United States, the mill is primarily used in the context of property tax assessment, where local governments set rates in mills per dollar of property value. It also appears on some utility bills and in the pricing of gasoline, where fractions of a cent are still calculated. The State of Ohio and the Commonwealth of Pennsylvania have historically used mill rates extensively in their tax codes. In Malta, prior to adopting the euro in 2008, the Maltese lira was divided into 100 cents and 1000 mills, with the mill appearing on some coinage. The concept also finds application in other currencies like the Israeli new shekel, where it is known as the *pruta*, and historically in the Hong Kong dollar system.

In popular culture

The mill occasionally appears in works focusing on historical economics or detailed financial transactions. It is sometimes referenced in discussions about the United States Mint or in historical novels set during periods like the American Revolution, where colonial currency was complex. The term is also used in educational contexts, such as in the television series Schoolhouse Rock!, which explained American financial concepts. Furthermore, the symbolism of the mill (₥) can be found in typographic and design discussions about currency symbols, alongside those for the Japanese yen and the British pound sterling.

Related units

Several other minute currency units are analogous to the mill in representing small fractions. The cent, used in the United States, Canada, and the Eurozone, is one hundredth of a primary unit. The point, used in securities pricing, is one hundredth of a percent. Historically, the British farthing was worth one-quarter of a penny. In the Middle East, the fils is one-thousandth of a Kuwaiti dinar or Bahraini dinar. The millieme, used in Egypt and Sudan, is one-thousandth of the Egyptian pound and shares the same etymological root as the mill.

Category:Currency units Category:Obsolete currencies