Oftentimes, taxpayers rely on various authorities in planning transactions and reporting them for tax purposes, as well as defending them during an Internal Revenue Service (IRS) audit, appeals or in litigation. These sources include authorities like the Internal Revenue Code, legislative history and other legislative materials, Treasury regulations and other IRS published guidance (e.g., revenue rulings, revenue procedures, notices, announcements), IRS private guidance (e.g., chief counsel advice, technical advice memoranda, private letter rulings, etc.), and case law. As we have discussed previously, these authorities are afforded different weight by courts and the IRS, and can serve different purposes in your matter.

(more…)