Can I fix errors from year-end tax adjustment? How does that relate to the Correction Request form?
Sources: NTA public materials and practical guidance from this tool. Last updated: 2026-06-19. Tax rules may change; follow your local tax office’s latest requirements.
Brief answer: If year-end adjustment submissions to your company were wrong, they usually cannot be changed after the deadline—you must file a Correction Request with the tax office directly.
Detailed explanation
For example, if parents were incorrectly listed as ineligible or eligible parents were omitted, after company year-end adjustment is locked, use the NTA correction procedure rather than asking HR to revise. If nonexistent dependents were claimed and excess tax was withheld, correction can also recover overpayment. When spouses duplicate claims for the same parent, one party must correct. The Correction Request form requires correct supporting materials. Withholding slip amounts from the company generally do not change. Whether correction is accepted is determined by the tax office.