Glossary
Tie-out
Reconciling a figure back to its source so a reviewer can confirm where it came from.
Tax term
Usually the largest single consumer of time in an engagement, and the part that cannot be skipped because it is the first thing a reviewer checks.
Keep reading
Everything here states what it does not cover.
A guide that applies to one country and one tax year says so at the top, and cites the section it relies on. Read one before you decide whether any of this is for you.
Decision support, not tax advice. A professional reviews before anything is filed.