Business rent is tax deductible under IRC section 162(a)(3) when it’s an ordinary, necessary, and reasonable cost of property you don’t own and hold no equity in. That covers office, warehouse, retail, coworking, and the business share of a qualifying home office. Indinero has bundled bookkeeping, accounting, tax, and fractional CFO advisory under one monthly engagement since 2009, so the lease and the buildout get recorded the way the return will need them.