Tax rules • United States
Tax rules for the US
Each rule here is the one Bilbx runs, with the figure the app uses and the IRS's own words under every sentence.
The tax year
January 1 to December 31
The US calendar tax year: January 1 to December 31
A calendar tax year runs from January 1 to December 31, and Bilbx's Tax Lab totals your receipts by calendar year.
Read the ruleThe line each expense goes on
Schedule C (Form 1040), Part II
Schedule C: the line each expense goes on
The lines of Schedule C, as the IRS prints them, and the one Bilbx's Tax Lab adds each category's receipts up on.
Read the ruleRecords of business use
Mileage log, for its own year
Business use: the mileage log
The record the IRS accepts for the business share of a vehicle, and the year Bilbx's Tax Lab applies it for.
Read the ruleCheck a receipt
Enter a receipt to see what Bilbx does with it under the US's rules. It is worked out in your browser by the same code the app runs, and nothing you enter is sent or stored.
Enter a date and a total to see the answers.
For the records behind these rules, see the guides for the US. How we research and review.