On May first, after the tax as computed as prescribed in § 10-9-9 has been assessed, one-half of the unpaid real estate tax is delinquent. However, any real estate tax totaling fifty dollars or less shall be paid in full on or before April thirtieth. If the other half of the real estate tax is not paid on or before October thirty-first of that year, that portion of the unpaid real estate tax is delinquent. If a mobile home is registered after October thirty-first, the taxes for that year shall be paid within thirty days. Any delinquent tax immediately becomes subject to the provisions of §§ 10-9-12, 10-9-13, and 10-9-13.1.
SDCL 10-9-10