When a business acquisition falls apart, the tax treatment of your costs depends on what you spent and whether you pursue a similar venture later. Initial investigation costs may become personal and non-deductible, while acquisition-specific expenses can qualify as short-term capital losses. Understanding these rules can save you thousands when deals don’t go as planned.

Before you model a single dollar, test the concept. This guide walks through six markers—Item 19 transparency, real unit economics, franchise support, royalty split, startup cost ratio, and brand compliance—so you can separate polished pitches from scalable, sustainable opportunities.