A taxpayer who improperly changed their accounting method without IRS consent may be subject to:
- Only a $1,000 administrative fee for the unauthorized change.
- Automatic audit of all tax years affected by the improper method.
- The IRS having the authority to impose the proper method and require a Section 481(a) adjustment - potentially in a less favorable manner than a voluntary change would have produced. (correct answer)
- Criminal penalties for tax fraud.
Explanation: An unauthorized method change may be corrected by the IRS on audit in a less favorable manner than a voluntary change. Answer C is correct.