Collin County Bond Results 2026: What It Means for Property Taxes

Reviewed November 4, 2026.

November 4 update: Collin County’s unofficial results, with all 90 vote centers reporting, show all four county bonds losing. Collin College’s separate bond also trailed. Results remain unofficial until canvassed. The cost projections below describe the rejected proposals, not a new adopted increase.

Collin County voters considered four bond propositions totaling $817.5 million on Nov. 3, 2026. If all four pass, the county projects its debt service tax rate could rise by about $0.0095 per $100 of value, which it estimates at about $9.51 a year on a $100,000 home before exemptions. A separate $600 million Collin College bond is on the same ballot, and the college says it expects no rate increase.

Here's what each proposition pays for, how the county got its estimate, and how to figure your own number. This post doesn't take a position on how to vote.

What's in the Collin County bond?

According to the Collin County bond election page and the county's voter information document, each proposition is decided separately:

• Proposition A: $296,500,000 for court facilities, adult detention facilities, and medical and mental health detention facilities, including adult probation facilities.
• Proposition B: $475,000,000 for non-tolled roads and bridges, including land and right-of-way.
• Proposition C: $6,000,000 for parks and open space.
• Proposition D: $40,000,000 for county election operations and a records-storage facility.

The county already carries $1.13 billion in outstanding debt principal as of Aug. 10, 2026, according to the same voter information document.

Why does the ballot say "THIS IS A TAX INCREASE"?

Texas law requires that phrase on bond propositions because bonds are repaid with property taxes. It appears even when a government projects little or no rate change, so the wording alone doesn't tell you how much your bill would move.

How much would the Collin County bond raise property taxes?

The county's estimate depends on how many propositions pass. Its voter information document says:

• Proposition A alone: the county projects it can be repaid without raising the current debt service (I&S) rate of $0.041891 per $100, so the estimated increase on a $100,000 homestead is about $0.00.
• All four propositions: the county projects its I&S rate would peak at about $0.051402 per $100. That's $0.009511 above the current rate, or about $9.51 a year per $100,000 of appraised value.

These are projections. The county assumes 5% interest, 3% yearly growth in taxable value starting in 2028, and bonds sold in stages from 2027 through 2032. It also says it did not apply homestead or other exemptions when it calculated the per-home figure. The Murphy Monitor reported county officials said continued growth could let the county slow bond sales or avoid the full increase.

To estimate your own maximum, use this formula:

(Your county taxable value ÷ 100) × $0.009511 = estimated added county tax per year

Hypothetical examples: on $300,000 of county taxable value, that's about $28.53 a year. On $500,000, it's about $47.56 a year. Both assume all four propositions pass and the county's maximum projection holds.

How is the Collin College bond different?

Collin College is asking voters to approve a $600 million Proposition A for the next phases of its Destination 2030 plan, including workforce and career training, an aviation academy in McKinney, and new or expanded campuses in communities such as Anna and Royse City, according to the Murphy Monitor.

The college says it expects to keep its tax rate at 8.122 cents per $100, where it has been since 2018. Your total bill can still change if your taxable value goes up.

Where do I find my county taxable value?

Your taxable value is on your Collin Central Appraisal District record. It's your appraised value minus exemptions, so check that every exemption you qualify for is applied. Our Texas homestead exemption guide explains what to look for. Homeowners in Plano, McKinney and other Collin County cities pay several taxing units, so the county's portion is only one line on the bill.

When is the Collin County bond election?

• Early voting: Oct. 19-30, 2026
• Election Day: Tuesday, Nov. 3, 2026, 7 a.m. to 7 p.m.

The November 4 unofficial summary showed county Propositions A–D losing. Use the county election results page for subsequent updates and the canvassed result.

What part of my tax bill can I control?

The reported rejection did not authorize these bonds. Your appraised value is the part you can challenge yourself. Every year you can protest your value with the Collin Central Appraisal District, and if you can't settle informally, an Appraisal Review Board (ARB) panel hears your case. The 2027 protest deadline is generally Monday, May 17, 2027 (May 15 falls on a Saturday), or 30 days after your notice is delivered, whichever is later.

Our Collin County property tax protest guide walks through the process. If you'd rather not handle the evidence and ARB hearing yourself, TaxDrop can protest for you.

Sources: Collin County bond election, Collin County voter information document, Murphy Monitor.