The IRS uses Letter 4903 to warn you they have no record of receiving your tax returns and they want you to file. It is possible you received this because you had excess deductions reported to the IRS and no income but generally it's because of self-employment income or a capital gain. They usually only ask you to file if they think you owe.
Confusion About Letter 4903
You may believe that you did file but the IRS says you did not. If you have the certified mailing receipt then you can argue about the filing date and there is a procedure for this. But, unless you have the mailing receipt, it is usually better to just re-file than argue.
However, since you are filing an original return you have the opportunity to review your records and find more deductions! Please re-sign the returns in blue ink (so the original is visible) & bring it in to our office for tax attorney guidance & advice prior to filing with the IRS!
You may not be required to file for some years. If returns are due they must be carefully researched & constructed with all advantage to you - the truth is the goal!
Often, people have lost some or all of their documents. But, our lawyers are masters at finding evidence and reconstructing old tax returns. See Lost Documents.
Because of legal and procedural issues, it is not always wise to rush to file a return. If you file a return, you extend the Statute of Limitations. Instead, our tax attorney needs to get the IRS file and create an Action Plan for your specific situation. Please follow the Prep Steps for Letter 4903 & see Mr. Hopkins in Colorado Springs or Pueblo before you file the returns!