Late illegible, defaced or corrupt entries will not be considered.

The IRS uses correspondence audits to take care of the most common tax return problems, such as missing forms and schedules, illegible entries and mathematical errors.

Damaged, defaced or illegible entries will be disqualified.

Late, illegible, incomplete, defaced or corrupt entries will not be accepted.

Late, illegible, incomplete, defaced or corrupt entries or entries sent through agencies and third parties will not be accepted.

No facsimile, mechanically reproduced, altered, forged, incomplete, or illegible entries will be accepted.