The federal tax reform bill made a lot of changes to what’s deductible and what’s not, but what exactly constitutes business expenses (at least as far as the IRS is concerned) has always been complicated.

SmallBusiness.com has put together a handy overview of what is deductible and what is not, along with links to the relevant IRS guidance documents.

And don’t forget to make these changes to your withholdings for 2018.

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