House of Lords

===Legislative functions===
{{Further|Act of Parliament (UK)}}
Most [[legislation]], with the exception of [[money bills]], may be introduced in either the House of Lords or House of Commons.

The House of Lords debates legislation, and has the power to amend or reject bills. However, the power of the Lords to reject a bill passed by the House of Commons is severely restricted by the Parliament Acts. Under those Acts, certain types of bills may be presented for [[Royal Assent]] without the consent of the House of Lords (i.e. the Commons can override the Lords' veto). The House of Lords cannot delay a money bill (a bill that, in the view of the Speaker of the House of Commons, solely concerns national taxation or public funds) for more than one month.

Other public bills cannot be delayed by the House of Lords for more than two parliamentary sessions, or one calendar year. These provisions, however, only apply to public bills that originate in the House of Commons, and cannot have the effect of extending a parliamentary term beyond five years. A further restriction is a [[constitutional convention (political custom)|constitutional convention]] known as the [[Salisbury Convention]], which means that the House of Lords does not oppose legislation promised in the Government's election manifesto.

By a custom that prevailed even before the Parliament Acts, the House of Lords is further restrained insofar as financial bills are concerned. The House of Lords may neither originate a bill concerning taxation or Supply (supply of treasury or exchequer funds), nor amend a bill so as to insert a taxation or Supply-related provision. (The House of Commons, however, often waives its privileges and allows the Upper House to make amendments with financial implications.) Moreover, the Upper House may not amend any Supply Bill. The House of Lords formerly maintained the absolute power to reject a bill relating to revenue or Supply, but this power was curtailed by the Parliament Acts.