South Dakota Administrative Rules — Title 64 (Revenue)
ARSD § 64:47:01:02 — Year on which refunds are based
Initial
refunds under SDCL 10-45A will be based upon income accrued by the claimant and the claimant's household during the 1974 tax year. If a claimant files no federal tax return, the claimant's tax year is the same as the calendar year.
Source: official text