India, Feb. 25 -- As the April filing deadline approaches, taxpayers are being urged to act fast if their electronic return is rejected by the Internal Revenue Service (IRS). A rejection does not mean your return has been filed, and delays in fixing errors could postpone refunds.

Nearly 18 million e-filed individual tax returns were rejected in fiscal year 2024, according to the National Taxpayer Advocate. Most rejections stem from simple mistakes such as incorrect Social Security numbers, misspelled names, or missing required forms.

The IRS assigns an error code explaining the problem, allowing taxpayers to correct and resubmit their returns electronically.

In some cases, however, a paper return may be required.

Most filers receive c...