Denison Property Tax: TX Rates, Assessor Phone & Refund Info

Denison Property Tax rates for 2026 stay steady, letting homeowners see exactly what they owe without surprise spikes. The Denison tax assessor office, part of Grayson County Tax Assessor‑Collector, answers calls at (903) 892‑8297 and emails stidhamb@co.grayson.tx.us for assessment notices, exemption lists, and real‑estate assessment values. Use the Denison real estate tax calculator on the county portal to estimate your bill, check the Denison tax bill lookup, and download your receipt before the Denison tax payment deadline in early February. If you qualify, explore the Denison tax deferral program, tax relief options, or the refund process after overpayment, all explained on the official site.

Denison Property Tax also includes the Denison school district tax levy, municipal tax rates, and special district boundaries that shape each parcel’s total cost. Residents can view the Denison tax map GIS, request a tax roll 2026 copy, or start a tax appeal procedure through the online portal. Late payments trigger Denison tax delinquency penalties, while the tax collector office offers payment plans and a lien sale schedule for unresolved balances. For any questions, the Denison tax collector contact office is open weekdays, and staff can guide you through the tax increase forecast for 2026.

Search Denison City Property Tax

Denison City Property Tax bills, balances, and parcel data live in the Grayson County system. The county handles billing, collection, exemptions, and appeals for every property inside Denison city limits. Owners, buyers, and agents can pull up current charges and payment history through the official public search tool on the Grayson Central Appraisal District site.

The public search portal is the Grayson CAD Taxpayer Portal at https://portal.graysonappraisal.org/. The tool accepts owner name, parcel number, and street address, then shows the current tax statement, prior year totals, and any exemptions in place.

Follow this path to look up a Denison property tax account:

1. Open the search link in a browser and wait for the parcel lookup screen to load fully.
2. Type the property owner’s last name, the full street address, or the parcel ID number into the search field.
3. Pick the matching record from the dropdown, watching for similar names or multiple parcels tied to one owner.
4. Review the current year balance, the amount already paid, and the split between city, school, county, and special district charges.
5. Download or print the on-screen statement as a receipt or for personal records before closing the page.

The portal also shows installment plans, past-due penalties, and any active protest status on the parcel. For ownership history, recorded deeds, and lien documents, contact the Grayson County Clerk’s office at the Grayson County courthouse.

Denison City Property Tax Rates

Denison City Property Tax rates combine four layers of taxation that apply to most parcels inside city limits. The City of Denison sets a municipal rate, the Denison Independent School District adopts its own rate, Grayson County adds a third layer, and small special districts sometimes apply to specific neighborhoods. Each rate is expressed per $100 of taxable value, which means a small shift in the rate can move a typical tax bill by hundreds of dollars each year.

In September 2026, the Denison City Council voted to keep the city portion flat for the upcoming year, a decision that stopped a proposed five-cent increase from going forward. That vote affects only the city line on the bill, since school, county, and special district rates are set by their own boards.

Layers of the Tax Bill

Why the Combined Rate Matters

Property owners see every layer stacked together on the annual statement issued each fall. The combined rate produces the total amount due, then exemptions such as homestead reduce the taxable value before the rate is applied. Checking each line item helps owners understand where each dollar of their bill goes.

Denison Tax Assessor and Collector Role

Denison Property Tax billing and collection runs through the Grayson County Tax Assessor-Collector office. The office does not set the value of a home or business, but it does issue the tax bill, collect payments, process exemption applications, and keep payment records up to date for every parcel in the county.

The same office serves as the point of contact for the public. Staff answer questions about balances, past-due amounts, installment plans, and the refund process when an overpayment happens. The office also distributes the official tax receipts that lenders, title companies, and buyers often need during closings.

Key Functions Handled by the Office

• Mail annual tax statements each fall to every property owner on record.
• Apply homestead, senior, disability, and veteran exemptions to qualifying parcels.
• Collect payments in person, by mail, and through the online portal.
• Issue official receipts for closing agents, title companies, and mortgage servicers.
• Track delinquency, add penalties and interest, and publish tax sale lists.
• Process refund claims when an overpayment is confirmed.

Public Inquiries the Office Fields

Anyone needing help with a Denison parcel can call the office, send an email, or visit in person. The official email for the assessor-collector is stidhamb@co.grayson.tx.us, and the main line rings at (903) 892-8297. The office sits at 100 W. Houston St., Sherman, TX 75090, and mail goes to P.O. Box 2107, Sherman, TX 75091-2107.

Denison Real Estate Assessment Value Process

Denison real estate assessment value is set each year by the Grayson Central Appraisal District, not by the city or the tax collector. The appraisal district studies sales of similar homes, tracks new construction, and applies mass appraisal methods to assign a market value to every parcel in the county. That value becomes the starting point for the next year’s tax bill.

Each spring, the appraisal district mails a notice of appraised value to every property owner. The notice shows the proposed value, the exemptions already in place, and the deadline for filing a protest if the owner disagrees. Reading the notice carefully is the best way to catch errors before the tax bill arrives in October.

What Shapes the Annual Value

• Recent sales of comparable homes in the same neighborhood or zip code.
• Property condition, age, size, lot area, and any major upgrades or damage.
• Market trends in the Denison and Grayson County area over the prior 12 months.
• Exemptions such as homestead, over-65, disability, and veteran that lower the taxable value.

Reviewing Your Notice

Property owners who believe the appraised value is too high can file a protest with the appraisal district. Filing must happen by the deadline printed on the notice, and the protest can often be filed online through the district’s taxpayer portal. The appraisal district also keeps property maps, sketches, and ownership data available for public review.

Denison Tax Bill Lookup and Payment

Denison Property Tax bills are mailed each fall, typically in October, and become due upon receipt. The full year amount must be paid by January 31 to avoid penalties, though taxpayers can also choose to pay in installments that run from November through June. Missing a payment triggers a late fee and interest that grow each month the balance stays open.

The fastest way to check a bill, print a statement, or make a payment is the online portal. The portal accepts electronic checks, credit cards, and debit cards, then emails a confirmation receipt that can be saved or printed for records.

Payment Channels Available

Online Lookup Steps

When paying in person, the office can split a bill into the four standard installments, print an official receipt on the spot, and answer questions about past-due balances. By mail, payments should include the coupon from the bottom of the statement and a self-addressed envelope if a receipt is needed. Online users see their full payment history, including refunds and adjustments applied in prior years.

Denison Tax Exemptions List

Denison Property Tax exemptions lower the taxable value of a home or land before the rate is applied. A property that qualifies for the homestead exemption, for example, sees a fixed dollar amount removed from its value, which then reduces the bill across every taxing entity. Most exemptions must be applied for, and missing a filing deadline can cost a property owner hundreds of dollars each year.

Exemptions sit on the parcel permanently once approved, but they often need to be renewed or re-verified when ownership changes, when a new homeowner moves in, or when a senior or disability status needs to be reconfirmed.

Common Exemptions Claimed in Grayson County

Filing Details That Save Money

Exemption applications go to the appraisal district, not the tax collector. Forms are available on the appraisal district site, and many can be filed online through the taxpayer portal. Owners should attach proof such as a driver’s license, discharge papers, or a disability award letter when the form requires it.

Denison Tax Appeal Procedure

Denison Property Tax protests are filed with the Grayson Central Appraisal District, not the city or the county tax office. The protest is the formal way to challenge the appraised value of a property, and a successful protest can lower the value, the tax rate calculation, and the final bill for that year. Protests must be filed by the deadline printed on the appraisal notice.

Filing is free, and most property owners can submit their protest through the appraisal district’s online portal. Larger commercial accounts and complex residential cases often benefit from working with a tax agent or attorney who specializes in property tax appeals.

Steps for a Typical Protest

1. Review the appraisal notice and circle every value you believe is wrong.
2. Gather evidence such as recent sale prices of similar homes, repair estimates, or photos showing property condition.
3. File the protest online or by mail before the deadline printed on the notice.
4. Wait for the appraisal district to schedule an informal hearing or a formal Appraisal Review Board date.
5. Present your evidence at the hearing and answer questions from the board or the district’s representative.
6. Receive a written decision, and continue to the next appeal level if you still disagree with the value.

Evidence That Carries the Most Weight

Comparable sales pulled from the same neighborhood within the past 12 months often produce the strongest result. Equity-based arguments, where the owner points out that similar homes have lower values, also help when sales data is thin. Photos of property damage, dated repair invoices, and a current independent appraisal letter can fill in gaps where sales evidence is hard to find.

Denison School District and Municipal Levies

Denison Property Tax bills include a school district levy that often makes up the largest single line on the statement. The Denison Independent School District sets its own rate each year, uses the revenue to pay teachers, maintain facilities, and service voter-approved bonds, and reports the rate to the county for billing. School funding is the reason a small change in the school rate can move a tax bill more than a small change in the city rate.

The City of Denison levy sits next to the school line and covers services the city runs directly. Police, fire, street repair, parks, the library, and citywide debt service all draw from the municipal rate. When the council votes on the city budget each fall, the adopted rate decides what property owners will pay for those services the following year.

Levy Responsibilities at a Glance

• School district: pays for classrooms, teacher salaries, student programs, and bond debt.
• City: funds public safety, roads, parks, libraries, and general operations.
• County: supports county roads, the courthouse, the jail, elections, and health services.
• Special districts: handle drainage, fire service outside city limits, and economic development zones.

Bond Debt on the Bill

Voter-approved bonds show up on the bill as a small dedicated line item, often called “I&S” for interest and sinking. Bond debt is separate from the day-to-day operations rate, so it is tracked and reported on its own. Property owners who want to follow school board or city council decisions can watch the meetings live or read the minutes posted on each entity’s website.

Denison Tax Delinquency and Penalties

Denison Property Tax becomes delinquent on February 1, the day after the January 31 statutory deadline. A late payment triggers a penalty that grows each month the balance stays open, with interest added on top of the original amount. The longer a bill goes unpaid, the higher the total cost becomes, which makes catching up harder as time passes.

Continued non-payment leads to serious collection steps, including a tax lien filed against the property. The lien is public record and follows the parcel until the debt is paid in full, which includes the original tax, all penalties, all interest, and any added collection costs.

Consequences of a Delinquent Balance

• Late penalty that grows each month the balance stays unpaid, set by state law.
• Monthly interest on the unpaid balance at the rate set by state law.
• Collection fees added by the tax office for notices, field visits, and records work.
• Public tax lien filed with the county clerk that can block a sale or refinance.
• Possible inclusion in the annual tax sale, where the lien is sold to an investor.

Stopping the Collection Clock

Property owners facing a hardship can often stop the collection clock by entering an installment agreement with the tax office. Agreements typically require a down payment and regular monthly payments until the balance clears. A tax deferral for seniors or disabled homeowners can also pause collection for qualifying parcels.

Denison Tax Relief and Deferral Options

Denison Property Tax relief programs target property owners with fixed incomes, disabilities, or short-term cash flow problems. The two most common tools are the tax deferral program for seniors and disabled homeowners, and the installment agreement for anyone behind on a bill. Both programs are run through the Grayson County Tax Office, and the application for each one is available on the county site.

The deferral program freezes the collection action on a qualifying homestead while the owner still lives in the home. The deferred taxes become due when the owner sells, transfers, or no longer lives in the home, which gives seniors a way to keep their house without losing it to a tax sale.

Available Relief Tools

• Installment agreement: spreads a past-due balance over several months with a required down payment.
• Senior deferral: pauses collection on a homestead for homeowners age 65 or older.
• Disability deferral: works the same as the senior deferral for homeowners with a qualifying disability.
• Homestead exemption: lowers the taxable value every year for an owner-occupied home.
• Property tax refund: returns an overpayment once the tax office confirms a credit or duplicate payment.

Applying Early Matters

Applying early keeps the relief options open. Once a property is posted for the tax sale, even a pending deferral may not stop the sale clock. Property owners who think they qualify should contact the tax office at (903) 892-8297 to ask which documents are needed before they file.

Denison Tax Map GIS and Property Records

Denison Property Tax maps, parcel boundaries, and ownership data sit on the Grayson Central Appraisal District’s GIS site. The map viewer lets a property owner draw a shape, click a parcel, and pull up the owner name, legal description, building sketch, land area, and current appraised value. Buyers, agents, and surveyors also use the GIS to check whether two parcels share a line, whether a flood zone crosses the lot, or whether a property sits inside a special district boundary.

Most of the same data also appears in the public search portal used for tax bills, which means the two tools work well together. The tax portal answers “how much” and “when due,” and the GIS answers “where exactly” and “what is the parcel like.”

What the GIS Tool Shows

• Parcel boundaries with the property ID number labeled on the map.
• Owner name, mailing address, and deed reference pulled from county records.
• Land area in acres or square feet, plus any exemptions on the parcel.
• Building outlines, year built, and basic improvement data where available.
• School district, city limit, county, and special district overlays for boundary checks.

Downloading and Saving Map Data

Map snapshots can be saved as a PDF or printed for use in a protest, a sale, or a survey. The appraisal district updates the map after major replays, annexations, and new construction, so checking the date stamp on the parcel card is a good idea before relying on the data for a legal matter.

Denison County Tax Records and Tax Roll

Denison Property Tax records sit in two separate places, each with its own purpose. The tax office holds billing and payment history for every parcel, while the county clerk holds recorded deeds, liens, and other documents that show ownership changes. Searching both at the same time gives a full picture of a property’s tax life, from sale to sale.

The tax roll itself is the master list of every parcel on the county tax roll, including the certified values, exemptions, and rates for the year. The certified tax roll is usually adopted in late summer, and the certified totals are then published on the appraisal district site for the public to read.

Records Worth Pulling for a Full File

• Current tax statement from the public search portal, including exemptions and rates.
• Payment history for the past three to five years, available on the portal or by request.
• Recorded deed from the county clerk, showing legal ownership and any lien history.
• Notice of appraised value from the appraisal district, showing the value set for the year.
• Tax sale redemption records, if the parcel has ever been part of a delinquent tax sale.

Historical Trends and Rate Files

Historical tax rates for past years sit on the appraisal district’s tax rate page, with year-by-year breakdowns of city, school, county, and special district rates. The same page also shows the top ten taxpayers in the county, certified values, and exemption totals. Researchers and buyers often use these public files to study rate trends over time before closing on a property.

Contact, Local Details, and Map

Denison Property Tax questions route to the Grayson County Tax Assessor-Collector office in Sherman, which sits just a few miles from Denison. The same office handles bills, payments, refunds, and installment plans for every Denison parcel. Mailing a payment or a form works for property owners who prefer paper, while the online portal works for those who want to pay or check a balance on their own schedule.

Grayson County Tax Assessor-Collector

• Main Phone: (903) 892-8297
• Official Email: stidhamb@co.grayson.tx.us
• Physical Address: 100 W. Houston St., Sherman, TX 75090
• Mailing Address: P.O. Box 2107, Sherman, TX 75091-2107
• Official Website: https://www.co.grayson.tx.us
• Public Search Portal: https://portal.graysonappraisal.org/

Grayson County Clerk (Deed and Lien Records)

• Physical Address: 100 W. Houston St., Sherman, TX 75090
• Official Website: https://www.co.grayson.tx.us

Both offices share the same street address in downtown Sherman, which makes it easy to visit them on the same trip. Property owners can stop by the tax office first to handle a payment or a refund, then walk over to the clerk’s office for a deed copy or a lien search. Phone and email support cover most routine questions, with in-person visits reserved for escrow payments, document recordings, and complex account research.

Frequently Asked Questions

Denison property tax matters affect every homeowner, buyer, and investor in the city. Knowing where to find your tax bill, how to pay on time, and which exemptions apply can save money and avoid penalties. The Grayson County Tax Assessor‑Collector office handles all billing, collection, and appeal work for Denison parcels, while the city council sets the local tax rates each year.

What is the current Denison TX tax rate and where can I view it?

The 2026 Denison city tax rate stays flat at the rate set by the city council in the latest budget document. Residents can see the exact rate on the Grayson County Central Appraisal District (CAD) website or by opening the annual budget PDF posted on the City of Denison site. The rate appears as a percentage of the assessed value and combines school, municipal, and special district levies.

How do I look up my Denison property tax bill online?

Visit the Grayson CAD Taxpayer Portal at https://portal.graysonappraisal.org. After logging in with the account number found on your appraisal notice, select “Property Tax Bill.” The portal shows current balance, due dates, and payment history for any Denison address. You can also download a PDF of the bill or request a mailed copy by calling the Tax Assessor‑Collector at (903) 892‑8297.

When is the Denison tax payment deadline and what penalties apply for late payment?

All property tax bills for Denison are due when received, typically in October. The state requires that any balance unpaid after the first notice incurs a 5 % penalty, followed by an additional 5 % after the second notice. To avoid fees, pay through the online portal, by phone, or at the Grayson County Tax Office before the next mailing. Late payments may also affect credit if a tax lien is filed.

Which exemptions are available for Denison homeowners and how can I apply?

Denison owners may qualify for homestead, over‑65, disabled veteran, and agricultural exemptions. To claim, complete the exemption packet found on the Grayson CAD website and submit it with a copy of your deed to the Tax Assessor‑Collector by the deadline listed in the packet. Approved exemptions reduce the taxable value, often lowering the bill by several hundred dollars.

What steps should I follow to appeal a Denison property tax assessment?

First, review your appraisal notice for errors in market value or property classification. Then file a protest online through the Taxpayer Portal within the protest window (usually 30 days from notice date). Attach supporting documents such as recent sales data or repair estimates. After filing, the Grayson CAD will schedule a hearing where you can present your case. If the board adjusts the value, a new bill is issued.