Every ExpenseBot account starts with two default tags: Business and Personal. They're starting points, not final classifications.
- Business = "this is a business expense, but I haven't sorted it further yet." Think of it as to be classified.
- Personal = "this is not business activity." Personal amounts are never deductible, reimbursable, or part of business profit. An expense counts as Personal when its expense category is Personal, its Tag is Personal, or a split allocation is Personal — any one signal is enough. Date-range business reports exclude Personal by default (editable chips), and the Year-End report keeps Personal rows visible for review at zero deductible. See Personal & omitted transactions — effects on reports and tax.
- Custom tags = anything you create yourself ("Client: Acme Corp", "Film – Production", "NYC Conference"). These are specific classifications that mean something in your workflow.
The key rule: AI features — the film scanner, persona scanners, the trip tagger — only suggest tags for rows that are untagged or still on a default Business/Personal tag. They will never overwrite a custom tag you've set; only the defaults are treated as "not yet classified." That's why your own tags stay put while generic rows get re-tagged.
To create your own tags: Settings → Tags, or the Tags wizard.