[Your Name] [Your Address] [City, State, ZIP Code] [Email Address] [Phone Number] [Date] [Internal Revenue Service] [Address] [City, State, ZIP Code] Subject: San Antonio Texas Sample Letter for Tax Return for Supplement Dear Sir/Madam, I am writing to request a supplemental tax return for the tax year [Specific Year]. I am a resident of San Antonio, Texas and have identified an error in my original tax return that requires correction and clarification, which will result in a change to my tax liability. To provide a comprehensive overview, I would like to outline the specific details related to my request. With regard to my original tax return, submitted on [Original Submission Date], I have discovered an error in the [Specify the specific error]. This error, if not amended, would lead to an incorrect calculation of my tax liability for the year in question. Considering the significance of this discrepancy, I kindly request the necessary forms and guidance to file a supplemental tax return to rectify the aforementioned error. I understand the importance of accurate tax reporting and compliance and wish to resolve this matter promptly to ensure an accurate assessment of my tax liability. Enclosed with this letter, please find the following supporting documents: 1. Copy of my original tax return filed for [Specific Year]. 2. Detailed documentation explaining the error in the original return. 3. Calculations and supporting evidence for the correct tax liability calculation. I kindly request that you consider this request on an expedited basis to minimize any potential penalties or interest charges resulting from the original error. I am ready and willing to provide any further documentation or information that may aid in the resolution of this matter. Should you require any clarification or additional information, please do not hesitate to contact me at the provided contact details. Thank you very much for your attention to this matter. Your prompt response in providing the necessary documentation for filing a supplemental tax return would be greatly appreciated. Yours faithfully, [Your Name]