Amended Tax Returns

Professional Amended Tax Return Services

Have you made a mistake on your tax return or realized you missed out on a valuable tax deduction or tax credit? We can help file an amended tax return to make the correction. At National Tax Service, we understand that preparing and filing a tax return can be complicated, especially when tax laws, deductions, and credits change from year to year. That's why we strive to offer prompt, reliable service to get your amended tax return completed and filed accurately and efficiently. We can help you when other companies are closed, and we can file your amended tax return even if you didn't originally file your federal tax return or state tax return with us.


An amended tax return can help correct errors, update important information, and ensure you receive any tax refund you may be entitled to. If you've already filed your return but later discover missing information, filing an amendment may help you avoid future complications with the IRS or state tax agencies while ensuring your tax records remain accurate.


Not sure whether you need to file an amended tax return? There are several common situations that may require amending your previous filing:


  • You realize you forgot to claim a tax deduction or tax credit.
  • You accidentally selected the wrong tax filing status.
  • You need to add or remove a dependent.
  • You have additional taxable income that must be reported.
  • You discover errors in your reported wages, income, or withholding amounts.
  • You receive corrected tax documents after filing your return.
  • You realize you claimed an expense, deduction, or credit you were not eligible to claim.
  • You need to correct information on a business tax return or self-employed tax filing.


No matter the reason, our experienced tax professionals can review your situation, determine whether an amendment is necessary, and help prepare the required documentation to support the changes.

Contact Our Office for Tax Preparation & More!

The professionals at National Tax Service are here for all your business income tax returns, personal tax returns, and state income tax returns. With many years of experience to draw from, we provide high-quality tax preparation services, tax planning assistance, and tax audit help when the need arises. Whether you're filing a simple return or managing more complex tax situations involving self-employment income, investments, or multiple income sources, our team is ready to help.


In addition, we offer dependable bookkeeping services and payroll services to help businesses stay organized and maintain accurate financial records throughout the year. We can also provide tax refund advances and loans on income tax returns to qualified individuals, helping you access funds when you need them most.


We're Columbia, SC's premier choice for tax return preparation, amended tax returns, bookkeeping, payroll support, and other tax-related services. If you'd like to learn more about correcting a previously filed tax return or getting started with any of our services, contact us today.