Use these definitions to determine which classification(s) under which you need to report business income on the excise tax return. This guide is created to help you understand.Washington's tax structure It's intended to provide an overview of the taxes that apply to various business. Running a homebased business can offer tax deductions on rent, employee payments, home repairs in addition to typical business expenses. The breakeven point is the point at which total cost and total revenue are equal, meaning there is no loss or gain for your small business. A friend of mine sent me this formula sheet for AS and A Level business, so I decided to help yall out too. You can find it here. Foundation's State Business Tax Climate Index enables business leaders, government policymakers, and taxpayers to gauge how their states' tax systems compare.