The following commentary comes from an independent investor or market observer as part of TheStreet's guest contributor program, which is separate from the company's news coverage.By Marla Miller NEW YORK ( TheStreet) -- Capitalization tax law -- three words that have little meaning to most people, will become very important to real estate owners this year as the IRS just released the long-awaited changes to tangible property regulations. This new guidance will impact accounting for expenses incurred by real estate companies when an acquisition, remodel or disposition is made. For almost a decade the new regulations remained in limbo, but on Dec. 23, 2011, they have been made available in temporary form. What does this mean for taxpayers? Despite the regulations' temporary status, property owners making structural changes or acquiring properties after Jan. 1, 2012, will need to be compliant.