The Treason Act 1415 (4 Hen. 5. Stat. 1. c. 6) was an Act of the Parliament of England which made clipping coins high treason, punishable by death. (It was already treason to counterfeit coins.^[1]) The Act was repealed by the Treason Act 1553, and then revived again in 1562.^[2] The Act originally only protected English coins, but was later extended in 1575 to cover foreign coins "current" within England.^[3] By this time the Coin Act 1572 (14 Eliz. 1. c. 3) had already made it misprision of treason to clip foreign coins not current within the Realm.

Treason Act 1415

Act of Parliament
Parliament of England
Long title	It shall be treason to clip, wash, or file money.
Citation	4 Hen. 5. Stat. 1. c. 6
Dates
Commencement	16 March 1416
Other legislation
Repealed by	Treason Act 1553
Status: Repealed

Forgery Act 1415
Act of Parliament
Parliament of England
Citation	4 Hen. 5. Stat. 1. c. 7 (Ruffhead: 4 Hen. 5. c. 7)
Dates
Royal assent	18 November 1416
Commencement	19 October 1416
Status: Repealed

Coin Act 1572
Act of Parliament
Parliament of England
Long title	An Act against the forging and counterfeiting of Foreign Coin, being not current within this Realm.
Citation	14 Eliz. 1. c. 3
Dates
Royal assent	30 June 1572

Coin Act 1575
Act of Parliament
Parliament of England
Long title	An Act against diminishing and impairing of the Queen's Majesty's Coins, and other Coins lawfully current within the Realm.
Citation	18 Eliz. 1. c. 1
Dates
Royal assent	15 March 1576

Another Act in 1415, 4 Hen. 5. Stat. 1. c. 7, extended the jurisdiction to try this category of treason to all justices in the realm, instead of just the select few known as the King's justices.

The Coin Act 1575 (18 Eliz. 1. c. 1) also abolished (for coin clipping only) the penalties of corruption of blood and forfeiture of goods and lands.