South Dakota Administrative Rules — Title 64 (Revenue)
ARSD § 64:27:01:13 — Travel expenses
64:27:01:13. Travel
expenses. Expenses incurred while traveling within this state for general
business purposes is deductible as a general administrative expense.
Expenses for travel outside South Dakota but beginning or
ending within this state and incurred for general business purposes is
deductible as a general administrative expense.
Source: official text