how does bonus depreciation offset w2 income?

[Steven N.]

we started an airbnb business in 2018, and invested $90k on property and land improvements, and purchasing personal property for the airbnb. 

Some of these cost qualify for bonus depreciation. Since we started renting in Q4, it will result a net loss for 2018. we are wondering how does the loss offset w2 income ($400k+)?

Does bonus depreciation only offset w2 income if reporting through NOL on sch c? or passive loss on sch e also offset w2 income?

Appreciate the help!