Ada County treasurer warns property taxes due Dec. 20; investment portfolio seeing higher yields as bonds mature

A representative of the Ada County Treasurer's Office reminded the Board of Commissioners on Dec. 10 that property taxes are due Friday, Dec. 20, and that approximately 24% of the taxes due had been collected at the time of the meeting. The treasurer's office urged property owners who have not received a tax notice to contact the office for payment options and locations to avoid mandatory late charges.

The treasurer's report also reviewed the county's investment activities. Staff reported that a $2,000,000 agency bond matured and that the county reinvested about the same amount in a new purchase with a stated coupon of 3.5% and a yield to maturity of 4.312% (purchase price at a discount increased realized yield). The treasurer said the portfolio continues to produce roughly $1 million per month in investment income, with variation depending on coupon and principal flows from mortgage‑backed securities and bond maturities.

On an issue raised by commissioners, the treasurer said he had seen a public figure referencing a statewide property‑tax reimbursement—but that the office had not received final distribution details; he referenced a publicly available figure transcribed in the meeting as "1,450,000,0.0" but said he had not received additional clarifying information. The treasurer said he expects any final decisions about statewide distributions to be handled through the state budget or surplus mechanisms, and he has not received confirmation of how or when such amounts would be passed to local taxpayers.

Why it matters: property-tax deadlines directly affect residents and tax collections that fund county services; the treasurer’s reinvestment strategy and recent maturities affect the county’s monthly investment income stream.