The law providing relief due to the coronavirus (COVID-19) pandemic contains a beneficial change in the tax rules for many improvements to interior parts of nonresidential buildings. This is referred to as qualified improvement property (QIP). You may recall that under the Tax Cuts and Jobs Act (TCJA), any QIP placed in service after December 31, 2017 wasn’t considered to be eligible for 100% bonus depreciation. Therefore, the cost of QIP had to be deducted over a 39-year period rather than entirely in the year the QIP was placed in service. This was due to an inadvertent drafting mistake made by Congress. But the error is now fixed. The Coronavirus Aid, Relief, and Economic Security (CARES) Act was signed into law on March 27, 2020...