Tomball held its tax rate flat. The bill on the median home still goes up $56.

Tomball adopted the same property tax rate it charged last year, 34.09 cents per $100. The bill on the median home goes up $56 anyway, and thirteen days later the council signed about $31.67 million in new utility debt.

Why it matters

“We held the rate flat” is the most common thing a Harris County taxing unit says in September, and it is true and incomplete at the same time. A flat rate applied to a higher appraisal is a higher bill.

Tomball is the sixth taxing unit this site has checked in six weeks that published a rate and left the bill for somebody else to work out.

By the numbers

34.09 cents. The adopted rate per $100 of value, unchanged from last year, approved unanimously September 8, per Community Impact.
32.96 cents. The no-new-revenue rate. The adopted rate is 3.43 percent above it.
$360,803, up from $344,235. Median taxable value, up 4.81 percent.
$1,230, up from $1,174. City tax on that median home. Up $56, or 4.81 percent.
$31.67 million. Certificates of obligation approved September 21 for the South Wastewater Treatment Plant expansion and East Water Plant upgrades.
18.57 cents and 15.51 cents. The maintenance-and-operations and debt-service halves of the rate as published. They sum to 34.08, not 34.09.

The whole of the $56 is valuation. The bill rises by exactly the 4.81 percent the median taxable value did, because the rate did not move. The 3.43 percent gap to the no-new-revenue rate is a separate measure: how much more the city collects than it would take to raise last year’s money from the same property.

What the coverage buried

One limit first: Community Impact is the only outlet that covered this adoption, so nothing below is second sourced, and the city’s own rate notice was not retrieved. That said, Community Impact did the thing most rate stories skip. It printed both median values and both bills, not just the rate, which is why this piece can do arithmetic at all.

The gap it leaves is narrower and specific. It reports the flat rate and, in the same story, $31.67 million of new certificates of obligation approved thirteen days later for water and wastewater capacity, and it does not say what that borrowing adds to the debt-service side of a future bill. Debt service is already 15.51 of the 34.09 cents, roughly 45 percent of the city rate. A reader finishing that story knows this year’s bill and has no way to estimate next year’s.

One smaller thing, and it is almost certainly rounding rather than error: the published M&O and debt-service components add to 34.08 cents, a hundredth of a cent short of the 34.09 adopted. On a $360,803 home that is four cents. It is noted because a rate table that does not sum is worth one sentence, and because the city has not published the unrounded figures.

The other side

Holding a rate flat is a real decision, not a trick. The council could have raised it and did not, its own costs rise with the same inflation everyone else pays, and Tomball is growing fast enough that treatment capacity is a genuine constraint. Expanding a plant before it is full is cheaper than after, and the unanimous votes suggest this was not close.

Concede all of that. The one thing it does not answer is why the number that reaches residents is the rate rather than the bill, when the city calculated the bill to run the notice.

What to watch

Whether the city publishes the annual debt service added by the $31.67 million, in dollars, before the next budget cycle.
October tax statements, when the city, the county, Tomball ISD and the other units on a Tomball bill arrive on one page.
Whether the South Wastewater Treatment Plant expansion holds its schedule and its price.
The fiscal 2027-28 rate. A flat rate is easy in a year when values rise.

Bottom line

Tomball did not raise its rate and its residents will pay more, which is the ordinary arithmetic of a rising appraisal and not a scandal. The part worth watching is the $31.67 million signed two weeks after the rate was set, with no published figure for what it costs a household. Six taxing units in six weeks, same missing number.