How Property Taxes Work in Parker: The 2026 Rates Explained

Four taxing units on every Parker bill

Every property in Parker pays taxes to four units:

1. City of Parker
2. Collin County
3. Collin College (the community college district)
4. A school district: Plano ISD for most of the city, or Allen ISD for a band across the north end

Some properties just outside the city may also fall in special districts, such as municipal utility districts, but inside Parker these four are the standard set. The Collin County Tax Office bills and collects all of them on one statement. Values come from the Collin Central Appraisal District.

The 2026 rates

These are the rates for tax year 2026, the bills mailed in fall 2026 and due by the end of January 2027, as published by the Collin County Tax Assessor-Collector.

Combined:

• Parker address in Plano ISD: $1.565823 per $100
• Parker address in Allen ISD: $1.636773 per $100

The school district accounts for about two-thirds of the total in either case. Allen ISD's rate is about 7 cents higher than Plano ISD's per $100 of taxable value.

What changed from last year

City of Parker. The City Council adopted the FY2026-27 budget with a rate of $0.300439, down a full cent from $0.310439 the year before. The 2026 no-new-revenue rate, which would raise the same revenue from the same properties as last year, was $0.297509. The voter-approval rate was $0.308771. The adopted rate falls between the two. The city's budget cover page states that the budget raises $282,089 more in property tax revenue than the prior year, a 4.26 percent increase, and that $244,311 of that comes from new property added to the roll.

Of the city's rate, $0.004484 goes to debt service on the city's 2019 refunding bonds. The rest funds operations, including police, fire, public works, and administration.

Plano ISD. The district's 2026 rate of $1.032750 is down from $1.03955 in 2025-26. The cut came from the maintenance and operations portion, while the debt service portion stayed the same.

Collin County. The county's 2026 rate of $0.151414 is up from $0.149343, the county's first rate increase in more than three decades, according to news coverage of the September 2026 vote.

Collin College. The college kept its rate at $0.081220.

On the November 3, 2026 ballot

Two of the four taxing units on a Parker bill have bond propositions on the November 3, 2026 ballot, according to Collin County's all-race sample ballot. Collin County is asking voters to approve four propositions totaling $817.5 million: $296.5 million for courts and detention facilities, $475 million for non-tolled roads and bridges, $6 million for parks and open space, and $40 million for an elections and storage facility. Collin College is asking for $600 million for workforce, technical, and academic facilities. Approved bonds are repaid through each unit's debt service rate. There is no City of Parker, Plano ISD, or Allen ISD measure on the countywide ballot.

Separately, the City of Parker gave notice in September 2026 that the council may authorize up to $15.16 million in certificates of obligation at its November 17, 2026 meeting, for water and sewer improvements and a new public works facility. Certificates of obligation need no election unless 5 percent of registered voters petition for one before that date.

Exemptions that reduce taxable value

Exemptions differ by taxing unit, which is why your taxable value is not the same number on every line of the bill.

Some points:

• The city of Parker offers no general homestead exemption. Its only listed exemption is $50,000 for owners 65 and older.
• School district homestead exemptions are set by state law and are $140,000 in 2026.
• Tax ceilings: Collin County and Collin College offer a tax ceiling, or freeze, for homeowners 65 and older. State law also freezes school taxes on the homestead of owners 65 or older or disabled. The city of Parker does not show a freeze in the county's 2026 table.

You apply for homestead and age-based exemptions through the Collin Central Appraisal District. New owners should apply after moving in, and the exemption applies only to the home that is your principal residence.

A worked example

Take a homestead in the Plano ISD part of Parker with an appraised value of $1,000,000, an owner under 65, and no other exemptions or appraisal caps.

The same home in Allen ISD would carry an Allen ISD line of $9,492 ($860,000 at 1.103700), for a total of about $14,584.

This is a simplified estimate. Real bills differ because:

• Texas caps how much the taxable value of a homestead can rise each year, so a long-held home may be taxed on less than its market value.
• Agricultural valuation on qualifying land can lower the taxable value of acreage.
• The appraisal district's value may differ from the purchase price.

How to check your own numbers

1. Find your property on the Collin Central Appraisal District site to see its value and exemptions.
2. Use CollinTaxInfo.org, the Collin County local property tax database, to see each taxing unit's rate and the estimated tax for your property. You can sign up for email notices when rates are proposed and adopted.
3. Confirm your school district. A Parker address in the north end may be in Allen ISD, which changes the largest line on the bill. Plano ISD's School Finder and Allen ISD's boundary map are the authorities.
4. Watch the August and September hearings. Each taxing unit publishes its no-new-revenue and voter-approval rates and holds public hearings before adopting a rate. Parker posts its notices on the city website.

Questions to ask before buying

• Does the current owner have a homestead exemption, a tax ceiling, or agricultural valuation that will not carry over to you?
• Is the property in Plano ISD, Allen ISD, or, for a few homes on the southeast edge, Wylie ISD ($1.175200 for 2026)?
• Is it inside Parker city limits? A Parker mailing address (75002, 75094, or 75098) does not guarantee it.

Last reviewed October 12, 2026. See something out of date? Email info@grisak.com.