Section 154: Rectification of Apparent Mistakes in Tax Records by Authorities, Includes Error Types and Notification Requirements.

Section 154 of the Income Tax Act allows rectification of mistakes apparent from the record by income-tax authorities. Authorities can amend orders, intimations, and statements of TDS or TCS. Rectifiable mistakes include errors of law, fact, clerical, arithmetical, or those arising from retrospective law amendments. Rectification is not allowed for matters already decided in appeals or revisions. Authorities can rectify mistakes on their own or upon notification by involved parties. If rectification increases tax liability, the affected party must be notified and given a hearing. Rectification must occur within four years, and applications must be resolved within six months.