Does building asset depreciation have to be spread over 27.5 years?

[srfandtrf]

I have a business home office.  Last year we spent $30,000.00 on all new windows.  Does the depreciation HAVE to be spread over the 27.5 years?  We owe a LOT in taxes this year and was wondering if that time could be shortened. Thank you! 

[SweetieJean]

$30,000 just on the windows for your office?  Or for the entire home?

[srfandtrf]

Entire home.  25% counts to the office in my circumstance.

[Zbucklyo]

It is 39 years, by the way, not 27.5.

[SweetieJean]

39 years is for a commercial building, OP mentions home office.

[Zbucklyo]

Home offices are depreciated over 39 years. Non-residential real property.

<a rel="nofollow" target="_blank" href="https://www.irs.gov/publications/p587#en_US_2018_publink1000226357">https://www.irs.gov/publications...>

[Leonard]

 Yes, the building asset will have to be depreciated.  The $30,000 spent on new windows is a capital improvement to the property and is added to the adjusted cost basis of your home and is not a deductible expense.  You will use the new adjusted cost basis when you are calculating your home office deduction.