Tax Calendar



The Black Hawk County Treasurer’s office operates on a fiscal year beginning July 1 and ending June 30.
July
      Beginning of fiscal year
August
    New fiscal year property taxes are certified

    Property tax and special assessment statements mailed

September
    First half property tax and special assessments due September 1, delinquent after September 30. However, if the last day of September is a Saturday or Sunday, the amount due becomes delinquent the second business day of October. (445.37; 435.24; 384.65)
October
    First half property tax and special assessments delinquent as of October 1. Interest accrues at the rate of 1.5% per month, rounded to nearest dollar. (445.39; 435.24; 384.65)
November
    Delinquent letters mailed to property owners for which the previous September and prior taxes are unpaid. (445.36)

    “For properties with an outstanding tax sale lien, Iowa law provides that taxes for a subsequent year may be paid by the purchaser at tax sale beginning one month and fourteen days following the date from which an installment becomes delinquent. (446.32)"

December
January
    Senior Citizen/Disabled property tax credit forms become available. Qualified individuals may apply between January 1 & June 1 with the County Treasurer. (435.22; 425.20)
February
March
    Second half property tax due March 1, delinquent after March 31. However, if the last day of March is a Saturday or Sunday, the amount due becomes delinquent the second business day of April. (445.37; 435.24; 384.65)
April
    Second half property tax delinquent as of April 1. Interest accrues at the rate of 1.5% per month, rounded to nearest dollar. (445.39; 435.24; 384.65)

    Delinquent tax statements and notice of tax sale mailed to property owners. (435.25; 446.9)

May
    “For properties with an outstanding tax sale lien, Iowa law provides that taxes for a subsequent year may be paid by the purchaser at tax sale beginning one month and fourteen days following the date from which an installment becomes delinquent. (446.32)”
June
    Senior Citizen/Disabled property tax credit forms due by June 1. (435.22; 425.20)

    Annual Tax Sale, third Monday of June (446.7; 446.15)