Deductions
What is deductible, what evidence it needs, and what you are currently missing.
Deductions are tracked as transactions are categorised rather than assembled at year end. The difference is that a missing receipt is recoverable in March and gone in the following January.
Each category states what substantiation it requires, because the rules differ and the difference is where deductions get disallowed.
Where everything sits
How to work this page
It takes minutes weekly and days annually.
Meals, vehicle, home office and travel each carry their own substantiation requirements and their own limits.
For anything that could be personal, the purpose is part of the evidence. A receipt alone is not enough for a meal.
It feeds the quarterly estimate, so a category that is understated raises what you pay.
On a phone
Every figure from the desktop appears here, stacked rather than reduced. Tables scroll inside themselves so the page never moves sideways, and figures keep their separators and their alignment at every width.
Questions people actually ask
Vehicle, because contemporaneous mileage records are required and reconstructing them afterwards rarely holds up.
The limit varies by year and circumstance. The rate in force for the period is applied and stated rather than assumed.