What type of tax return does Form 1040X represent?

Form 1040X is specifically designed to be used for amending a previously filed tax return. When taxpayers discover that they made an error on their original Form 1040, whether it involves underreporting income, claiming deductions or credits that were missed, or correcting filing statuses, they can use Form 1040X to make these adjustments. This form allows the IRS and the taxpayer to correct the financial information and ensure that the tax is accurately computed.

Choosing the correct option underscores the importance of ensuring that tax filings are accurate and up to date, which is crucial for both compliance and potential refund optimization. The other answer choices represent different types of returns that do not capture the purpose of Form 1040X, such as original returns, final returns for deceased individuals, or returns filed jointly by married couples. Only Form 1040X serves the specific purpose of obtaining amended status for previously submitted tax returns.