For amortization that begins in the tax year, you must complete and attach Form 4562.
You can elect to amortize such costs as:
- The cost of pollution-control facilities;
- Amounts paid for research and experimentation;
- Qualified revitalization expenditures;
- Amounts paid to acquire, protect, expand, register, or defend trademarks or trade names;
- Certain expenses paid or incurred to create or acquire a musical composition or its copyright;
- Goodwill and certain other intangibles.
In general, you cannot amortize real property construction period interest and taxes. Special rules apply for allocating interest to real or personal property produced in your trade or business.
For more information see 4562 Schedule C