How many amendments does the U.S. Constitution have?

The United States Constitution has 27 amendments, as follows:

# Amendments Proposal date Enactment date 1st Protects the freedom of religion, speech, and the press, as well as the right to assemble and petition the government September 25, 1789 December 15, 1791 2nd Protects the right to keep and bear arms September 25, 1789 December 15, 1791 3rd Prohibits the forced quartering of soldiers out of war time September 25, 1789 December 15, 1791 4th Prohibits unreasonable searches and seizures and sets out requirements for search warrants based on probable cause September 25, 1789 December 15, 1791 5th Sets out rules for indictment by grand jury and eminent domain, the right to due process, prohibits self-incrimination and double jeopardy September 25, 1789 December 15, 1791 6th Protects the right to have a fair and speedy public trial by jury, including the rights to be notified of the accusations, to confront the accuser, to obtain witnesses and to retain counsel September 25, 1789 December 15, 1791 7th Provides for the right to trial by jury in certain civil cases, according to common law September 25, 1789 December 15, 1791 8th Prohibits excessive fines and excessive bail, as well as cruel and unusual punishment September 25, 1789 December 15, 1791 9th Asserts the existence of unenumerated rights retained by the people September 25, 1789 December 15, 1791 10th Limits the powers of the federal government to those delegated to it by the Constitution September 25, 1789 December 15, 1791 11th Immunity of states from suits from out-of-state citizens and foreigners not living within the state borders. Lays the foundation for sovereign immunity March 4, 1794 February 7, 1795 12th Revises presidential election procedures December 9, 1803 June 15, 1804 13th Abolishes slavery and involuntary servitude, except as punishment for a crime January 31, 1865 December 6, 1865 14th Defines citizenship and deals with post-Civil War issues June 13, 1866 July 9, 1868 15th Prohibits the denial of suffrage based on race, color, or previous condition of servitude February 26, 1869 February 3, 1870 16th Allows the federal government to collect income tax July 12, 1909 February 3, 1913 17th Requires senators to be directly elected May 13, 1912 April 8, 1913 18th Establishes Prohibition of alcohol (Repealed by Twenty-first Amendment) December 18, 1917 January 16, 1919 19th Establishes women's suffrage(right to vote) June 4, 1919 August 18, 1920 20th Fixes the dates of term commencements for Congress (January 3) and the President (January 20); known as the "lame duck amendment" March 2, 1932 January 23, 1933 21st Repeals the Eighteenth Amendment February 20, 1933 December 5, 1933 22nd Limits the president to two terms, or a maximum of 10 years (i.e., if a Vice President serves not more than one half of a President's term, he can be elected to a further two terms) March 24, 1947 February 27, 1951 23rd Provides for representation of Washington, D.C. in the Electoral College June 16, 1960 March 29, 1961 24th Prohibits the revocation of voting rights due to the non-payment of poll taxes September 14, 1962 January 23, 1964 25th Codifies the Tyler Precedent; defines the process of presidential succession July 6, 1965 February 10, 1967 26th Establishes 18 as the national voting age March 23, 1971 July 1, 1971 27th Prevents laws affecting Congressional salary from taking effect until the beginning of the next session of Congress September 25, 1789 May 5 or 7, 1992[1]

The United States Constitution has 27 amendments, as follows:

#AmendmentsProposal dateEnactment date

1stProtects the freedom of religion, speech, and the press, as well as the right to assemble and petition the governmentSeptember 25, 1789December 15, 1791

2ndProtects the right to keep and bear armsSeptember 25, 1789December 15, 1791

3rdProhibits the forced quartering of soldiers out of war timeSeptember 25, 1789December 15, 1791

4thProhibits unreasonable searches and seizures and sets out requirements for search warrants based on probable causeSeptember 25, 1789December 15, 1791

5thSets out rules for indictment by grand jury and eminent domain, the right to due process, prohibits self-incrimination and double jeopardySeptember 25, 1789December 15, 1791

6thProtects the right to have a fair and speedy public trial by jury, including the rights to be notified of the accusations, to confront the accuser, to obtain witnesses and to retain counselSeptember 25, 1789December 15, 1791

7thProvides for the right to trial by jury in certain civil cases, according to common lawSeptember 25, 1789December 15, 1791

8thProhibits excessive fines and excessive bail, as well as cruel and unusual punishmentSeptember 25, 1789December 15, 1791

9thAsserts the existence of unenumerated rights retained by the peopleSeptember 25, 1789December 15, 1791

10thLimits the powers of the federal government to those delegated to it by the ConstitutionSeptember 25, 1789December 15, 1791

11thImmunity of states from suits from out-of-state citizens and foreigners not living within the state borders. Lays the foundation for sovereign immunityMarch 4, 1794February 7, 1795

12thRevises presidential election proceduresDecember 9, 1803June 15, 1804

13thAbolishes slavery and involuntary servitude, except as punishment for a crimeJanuary 31, 1865December 6, 1865

14thDefines citizenship and deals with post-Civil War issuesJune 13, 1866July 9, 1868

15thProhibits the denial of suffrage based on race, color, or previous condition of servitudeFebruary 26, 1869February 3, 1870

16thAllows the federal government to collect income taxJuly 12, 1909February 3, 1913

17thRequires senators to be directly electedMay 13, 1912April 8, 1913

18thEstablishes Prohibition of alcohol (Repealed by Twenty-first Amendment)December 18, 1917January 16, 1919

19thEstablishes women's suffrageJune 4, 1919August 18, 1920

20thFixes the dates of term commencements for Congress (January 3) and the President (January 20); known as the "lame duck amendment"March 2, 1932January 23, 1933

21stRepeals the Eighteenth AmendmentFebruary 20, 1933December 5, 1933

22ndLimits the president to two terms, or a maximum of 10 years (i.e., if a Vice President serves not more than one half of a President's term, he can be elected to a further two terms)March 24, 1947February 27, 1951

23rdProvides for representation of Washington, D.C. in the Electoral CollegeJune 16, 1960March 29, 1961

24thProhibits the revocation of voting rights due to the non-payment of poll taxesSeptember 14, 1962January 23, 1964

25thCodifies the Tyler Precedent; defines the process of presidential successionJuly 6, 1965February 10, 1967

26thEstablishes 18 as the national voting ageMarch 23, 1971July 1, 1971

27thPrevents laws affecting Congressional salary from taking effect until the beginning of the next session of CongressSeptember 25, 1789May 5 or 7, 1992[1]