Tonnage and poundage
Tonnage and poundage were duties and taxes first levied in Edward II's reign on every tun (cask) of imported wine, which came mostly from Spain and Portugal, and on every pound weight of merchandise exported or imported. Traditionally tonnage and poundage was granted by Parliament to the king for life, but this practice did not continue into the reign of Charles I. Tonnage and poundage were swept away by the Customs and Excise Act 1787.
Charles I's first parliament, known as the Useless Parliament, broke with tradition and granted the king tonnage and poundage for a year rather than life out of concern over the manner in which tonnage and poundage's life grant of 1604 had been used by James to justify impositions, which were additional duties imposed on certain items. This restriction was seen as a provocative step by Parliament as it was one of the King's main sources of revenue, and Parliament intended the one-year limit to curb Charles' autonomy by forcing him to request money from Parliament every year thereafter. Although the House of Commons passed this bill, George Villiers, 1st Duke of Buckingham led a successful effort in the House of Lords to block it. As a result, Parliament granted Charles no tonnage and poundage rights at all, which, combined with Parliament's efforts to impeach the Duke of Buckingham, led to Charles' first parliament being dissolved.
Charles, however, continued to collect unauthorised tonnage and poundage duties, and this action became a chief complaint of Charles' failed parliament of 1629. When Charles moved to adjourn the parliament, members held the speaker, John Finch, in his seat until three resolutions could be read, one of which declared anyone who paid unauthorised tonnage and poundage to be a betrayer and enemy of England.
Charles I's levying of tonnage and poundage without parliamentary sanction continued to be one of the complaints of his Long Parliament. The refusal of and subsequent disputes about tonnage and poundage rights is seen as one of the many events bearing responsibility for the English Civil War.