In general, there is no requirement to amend a 5500 for inaccurate information. However, a 5500 is signed under penalties of perjury. If information at the time the 5500 was submitted was known to the person who signed the 5500 to be inaccurate, then the signer might want to amend the 5500 so as not to be subject to penalties of perjury. On the other hand, filing a corrected 5500 will restart the statute of limitations from the date the amended 5500 is filed. Anybody considering amending a 5500, especially for information that was not known at the time of the original submission, should weigh the value of amending against the risk of extending the statute of limitations.