SALE OF BOOK OF MORMON COPYRIGHT:  Winter 1829-1830. Comp Hist 1:165 Joseph had a revelation that Hiram Page and Oliver Cowdery were to go to Toronto to sell the copyright of the Book of Mormon to raise money.  They went, according to the revelation, but were completely unsuccessful. Joseph Smith "inquired of God" and was told that some "revelations" are not from God. (See the comment above on the test of a true prophecy.) 

CHRIST'S SECOND COMING: Feb 14, 1835. HC 2:382.  Joseph Smith preached that the coming of the Lord would be in 56 years (i.e., about 1891). See also D&C 130:14-17. The second coming did not occur about 1891, and the Church does not claim that it did. Nor has it occurred since. Joseph Smith did not live to be 85 years old. God must have known that he would not. Why would God make a revelation conditional upon an event which he knew would never happen? 

NEW YORK DESTROYED: Sept 22-23, 1832. D&C 84:114-115. New York, Albany and Boston will be destroyed if they reject the gospel. The "hour of their judgment is nigh..." Newell K. Whitney and Joseph Smith went to New York, Albany, and Boston and preached there. These cities did not accept the gospel. They have not been destroyed. 

THE END OF ALL NATIONS:  Dec 25, 1832. D&C 87. Prophecy of the rebellion of South Carolina, war between the states. The South will call on Great Britain for aid, and as a result war will be poured out upon all nations; slaves will revolt; the inhabitants of the earth shall mourn; famine, plague, earthquake, thunder, lightning, and a full end of all nations will result. This prophecy is the one most often cited by Mormons to prove Joseph Smith's prophetic power. However, most Mormons are unaware of the political situation in America at the time it was made. In November 1832 South Carolina had declared its power to "nullify" any federal act, and President Jackson was prepared to go to war to enforce federal authority. Most people expected war. Thus the "prophecy" did no more than reflect commonly held opinion. Even when the South did finally revolt, in 1861, although Great Britain came to its assistance, other elements of the prophecy were not fulfilled: slaves did not rise up, war was not poured out upon all nations, there was no world- wide famine, plague, earthquake, etc., and there was no resulting "end of all nations." Morris, PJS, contends that World War I, the associated famines, the 1918 influenza epidemic, fulfill this prophecy. But these are not as a result of the American Civil War.

POWER TO DETECT FALSITY: April 28, 1842. Joseph Smith gives the sisters of the Relief Society "and the Elders" the keys of the kingdom "that they may be able to detect everything false." [Quinn p. 634]. Apparently by the 1980s the Elders no longer had these keys, since they were unable to detect the forgeries foisted on them by Mark Hofmann, but rather esteemed him an authority on rare Mormon documents, paying him thousands of dollars for his forgeries. The church leaders learned of his deception from the secular authorities, when he was arrested for murders he had committed in furthering his schemes against the church.

US GOVERNMENT WILL BE DESTROYED: May 18, 1843. HC 5:394. Joseph Smith prophesies "by virtue of the holy priesthood... and in the name of the Lord" that if Congress or the United States will not redress the wrongs which the Mormons suffered in Missouri, and grant them protection, "the government will be utterly overthrown and wasted," they shall be "broken up as a government" and there will be nothing left of them. The United States rejected the Mormons' petitions; their wrongs were not redressed; they were not protected from their enemies. The United States government was never overthrown and is still in existence. 

PLURAL MARRIAGE:  July 12, 1843. Revelation and prophecies regarding plural marriage. D&C 132.66 says that "pertaining to this law [the law of plural marriage] I will reveal more unto you, hereafter."  The church has not said that it has received any subsequent revelation on this subject except to say that plural marriage will no longer be practiced by the church!

A Prophecy that was Fulfilled

A VAIN PROPHET WILL BE THROWN DOWN:  July 1828. D&C 3:4. "For although a man may have many revelations, and have power to do many mighty works, yet if he boasts in his own strength, and sets at naught the counsels of God, and follows after the dictates of his own will and carnal desires, he must fall and incur the vengeance of a just God upon him."  Joseph Smith was secretly married polygamously to over 40 women, some of them wives of men still living. Many who knew of these secret marriages accused him of changing the doctrine of the church to satisfy his own carnal desires, in violation of the Book of Mormon (Jacob 2:23-29, 3:5) and D&C 49:16. On May 26, 1844, Joseph Smith made the following statement in a public sermon (Brodie p 374, HC 6:408-412): "Come on, ye persecutors! ye false swearers! All hell, boil over! Ye burning mountains, roll down your lava! For I will come out on the top at last. I have more to boast of than ever any man had. I am the only man that has ever been able to keep a whole church together since the days of Adam. A large majority of the whole have stood by me. Neither Paul, John, Peter, nor Jesus ever did it. The followers of Jesus ran away from Him; but the Latter-day Saints never ran away from me yet."  One month later, on June 27, 1844, he was killed by his enemies in a gun battle at Carthage Jail.

Errors and Contradictions

• Is there one God?    NO-Abraham 4:3-5 . . . YES-Moses 2:3
• Was God once a man? NO-Moroni 8:18, 7:22 Mormon 9:9 . . . YES-Teachings of the Prophet J.S. 345
• Does God have a body? NO-1833 version D&C 93:21 . . . YES-D&C 130:22
• Can God dwell in our hearts? NO-D&C 130:3,22 . . . YES-Alma 34:36
• Has Jesus always been a god?  NO-D&C 93:12-14,21 . . . YES-D&C 20:17,28
• Is Jesus the only begotten of the Father? NO-Moses 5:9 . . . YES-D&C 138:14
• Is polygamy acceptable to God?  NO-Ether 10:5, Moses 11:2 . . . YES-D&C 132:38-39, 61-62
• Is murder forgivable?  NO-D&C 42:18-19, 79 . . . YES-Alma 24:10
• Can the dead be saved? NO-Alma 34:31-35  . . . YES-D&C 137:1-5
• Are there levels of Heaven?  NO-3 Nephi 11:33-34  . . . YES-D&C 76:70-107
• Is God's Word correct?  NO-1 Nephi 13:26-28 . . . YES-D&C 1:38

Conclusion

Summarized above are some of the prophecies of Joseph Smith which were not fulfilled. Mormons may object that some of them may still be fulfilled, but many of the prophecies cannot be fulfilled: the dates for their fulfillment were given, and those dates have passed; the people whose deeds were prophesied have died without their performing those deeds.  And it only takes one, according to God, to prove a "prophet" false. Many LDS also like to claim that the apostles and even some actual biblical prophets were, at times, wrong. These cases, however, are not "thus saith the LORD" prophecies! Of course humans, even prophets, can and will be mistaken at times - but not when they prophesy. God did not leave that option open.