Guides

Guides, in plain words

Short, sourced, and dated where dates matter. Each guide ends at the tracker that does its math.

One worked example from our demo file, both finish lines, and what the example actually proves.

The split fee and the host-only fee as Airbnb publishes them — checked October 26, 2026, source named.

The Schedule E categories walked through, line by line. Organization, not tax advice.

Why monthly budgets break on real paydays, and how assigning bills to checks fixes it.

Which file to open, what is the same, and what honestly differs.