Collin County Property Tax: Search the Account, Pay Safely & Check 2026 Dates
Collin County property tax uses two different systems for two different jobs. The Collin County Tax Assessor-Collector handles tax statements, payments, receipts, delinquent balances and many refund questions. Collin Central Appraisal District (Collin CAD) handles appraisal value, property records, exemptions and appraisal protests.
That distinction matters in 2026. Appraisal notices and the normal real-property protest period came before the fall tax bill. Tax statements are generally mailed in October, so a homeowner checking value in August is solving a different problem from a homeowner paying the final bill in December or January.
Quick Answer: What Should a Collin County Property Owner Do First?
If your goal is to find or pay the bill, use the Collin County Tax Account Lookup. If your goal is to question the value, check exemptions, correct appraisal-side ownership information or protest, use Collin CAD.
Do not assume an appraisal record showing value is the same thing as the live tax balance. The safest payment decision comes from the official county tax account after you verify the property, tax year, amount due and payment status.
2026 deadline update: The normal last day to pay Texas property taxes before delinquency is January 31 of the following year. January 31, 2027 is a Sunday. Texas Comptroller guidance explains that when Jan. 31 falls on a Sunday, payment on the next regular business day may be timely and the standard account becomes delinquent the following day. Always verify the date printed on the 2026 Collin County statement because late-mailed or special bills can use different delinquency dates.
Before clicking a payment button, write down four things: property account number, property location, tax year and current pay status. Those four details solve many wrong-account and duplicate-payment problems.
Choose the Office Based on the Problem
The same property can involve the Tax Office, Collin CAD, the Appraisal Review Board and several taxing units. Start with the task rather than the office name.
Use the Collin County Tax Account Lookup for the live tax account, statement, payment history and receipt route.
Use Collin CAD. The Tax Office collects the bill but does not decide the appraisal value.
Use Collin CAD for homestead, age 65+, disability, veteran and other appraisal-side exemption questions.
Compare appraised/taxable value, exemptions, taxing units and adopted rates instead of looking only at the county rate.
Use the county tax account to confirm both payments, then determine which remitter must request an overpayment refund.
Check the county pay status and mortgage escrow record before sending your own payment.
Value or exemption problem → Collin CAD. Bill, payment or receipt problem → Collin County Tax Office.
How to Search the Collin County Property Tax Account
The county’s Online Taxes system is the better starting point when your goal is the tax statement, live balance, payment history or receipt. It also lets you narrow results by account type, active/inactive account status and paid/unpaid status.
- Open the official county lookup.
- Select the most accurate search field you have.
- Complete the security check.
- Open the matching property.
- Confirm the tax year and current balance.
- Check payment history before paying again.
If the exact property address does not return a result, simplify it to the street number + street name rather than adding suffixes such as Drive, Lane or Avenue.
When to Use Collin CAD Property Search Instead
Collin CAD is the appraisal-side database. Its property search supports fields such as owner name, street number/name, Property ID, Owner ID, Geographic ID, property type, tax year, legal description, subdivision and other advanced criteria.
Use the CAD record to review appraisal-side land, improvement and property information.
Check whether expected homestead or other qualifying exemptions appear on the appraisal record.
Collin CAD maintains appraisal-side ownership and mailing information used in the property-tax process.
The CAD system and Taxpayer Portal are used for appraisal notices, documents and protest-related actions.
Property ID, Geographic ID, subdivision and legal-description fields can help when address searching is not enough.
The Taxpayer Portal explicitly states that Collin CAD does not bill or collect property taxes.
- Open Collin CAD Property Search.
- Search by owner, address, Property ID or another supported field.
- Confirm the correct tax year.
- Review value, property details and exemptions.
- If you need the amount owed, switch to the Tax Office system.
Taxpayer Portal login: Collin CAD says a new portal account uses the Owner ID and eFile PIN from the most recent Appraisal Notice or Exemptions Notice. Do not use a previous owner’s PIN after buying a property.
How to Pay Collin County Property Tax Safely
The Tax Office accepts several payment routes, but the safest process starts with the live tax account. Do not choose a payment method until you have confirmed the account and current amount due.
Current county FAQ: 2.10% service charge, minimum $1.00. Confirm the fee before final submission.
Available through the authorized electronic payment route. Check the current confirmation screen for any applicable terms or charge.
Write the property account number on the check and follow the current county mailing/postmark instructions.
Collin County states that its three Tax Office locations accept property-tax payments.
The county allows partial payments. Mark the account number and “Partial Payment” on the check; unpaid balance can still become delinquent.
The county FAQ also provides a phone-payment route through Certified Payments. Verify account and fees before authorizing payment.
Payment safety: CountyPropertyTaxes.us does not collect taxes or payment credentials. Follow the official county payment route only after matching the live property account.
- Open the Tax Account Lookup.
- Confirm property and tax year.
- Review current amount due.
- Check escrow or prior payments.
- Review service charge.
- Submit through the authorized route.
- Save receipt and recheck posting.
Collin County Property Tax Dates: 2026 Tax-Year Timeline
The appraisal calendar and payment calendar are separate. For the 2026 tax year, appraisal notices and the normal real-property protest deadline occurred in spring, while the actual 2026 tax statement is part of the fall/winter collection cycle.
Ownership, property use and many appraisal/exemption facts are tied to the January 1 tax date.
Collin CAD states that 2026 Notices of Appraised Value for real property were mailed April 15.
April 30 is the general deadline for many exemption applications, although Texas law allows certain late homestead applications.
Collin CAD specifically published May 15, 2026 as its 2026 real-property protest deadline.
Collin CAD says the local property-tax database is updated as local elected officials propose and adopt tax rates.
Collin County states that property-tax statements are mailed in October and are due upon receipt.
January 31 is the normal date used for standard Texas property-tax bills, but in 2027 it falls on Sunday.
Texas Comptroller guidance says that when Jan. 31 falls on Sunday, action completed on the next regular business day can be timely.
The Comptroller’s weekend example says a Sunday Jan. 31 deadline can shift delinquency to Tuesday Feb. 2.
Account-specific dates control. A bill mailed late, corrected bill, rollback bill, installment election or other special tax bill can have a different delinquency date. Read the current statement instead of applying the normal calendar automatically.
- Open the current county tax account.
- Confirm the tax year.
- Read the bill’s due and delinquency language.
- Check Texas weekend/holiday rules if the deadline falls on a non-business day.
- If mailing, preserve the USPS postmark.
Late Collin County Property Tax: Penalty, Interest and Collection Risk
Once an account becomes delinquent, do not pay the amount from an old October statement. Search the live account because penalty, interest and possible collection charges change the amount due.
The county FAQ shows 6% penalty plus 1% interest for a normal Feb. 1 delinquency schedule.
The county FAQ shows the combined standard amount increasing in March.
Use the live account rather than calculating from the original levy yourself.
Penalty and interest continue to increase while the standard delinquent balance remains unpaid.
Accounts approaching June 30 should be reviewed quickly because collection consequences can increase.
The county FAQ shows a substantially higher July total when additional attorney-related collection penalty applies.
2026-tax-year caution: The normal penalty chart is built around a Feb. 1 delinquency. Because the regular Jan. 31, 2027 deadline falls on Sunday, do not mechanically apply the standard February date to the 2026 account. Use the live county balance and printed delinquency date.
The Tax Office states that the collector does not have legal authority simply to waive penalty or interest on an unpaid tax. If the amount looks wrong, identify whether the issue is payment timing, appraisal correction, exemption correction or another statutory adjustment.
Collin County Homestead, Age 65+, Disability and Veteran Exemptions
Exemptions are filed with Collin CAD, not the Tax Office payment processor. Texas law provides mandatory exemptions in some situations and allows local taxing units to offer additional exemptions.
For 2026, Texas requires school districts to provide a $140,000 general residence homestead exemption. Local city, county, college and other taxing-unit exemptions can differ, so the amount removed from taxable value is not necessarily identical for every line on a Collin County tax bill.
For qualifying owners who own an interest in the home and use it as their principal residence.
Qualifying homeowners should review additional exemption and tax-ceiling or installment provisions.
Qualifying disabled homeowners may receive additional relief and may have special installment or deferral options.
Texas provides several veteran-related exemptions depending on disability rating and other statutory requirements.
Several veteran, age-65 and line-of-duty provisions contain separate surviving-spouse requirements.
Collin County’s FAQ states there is no fee to apply for an exemption through Collin CAD.
Missed April 30? Do not assume you permanently lost the general residence homestead benefit. Texas Comptroller guidance says certain late residence-homestead applications can be filed up to two years after the taxes become delinquent. Veteran exemptions can have different late-filing periods.
- Open Collin CAD’s residential exemption forms.
- Select the exact exemption that fits your situation.
- Read ownership, residence and documentation requirements.
- Prepare identification and supporting records.
- File with Collin CAD—not the payment processor.
- Keep proof of filing.
- Later verify that the exemption appears in the appraisal record and tax calculation.
An exemption can reduce taxable value without making every taxing-unit line disappear. Check each taxing entity rather than assuming one exemption amount applies uniformly to the entire bill.
Collin County Appraisal Protest and Appeal: 2026 Status
The 2026 standard real-property protest deadline published by Collin CAD was May 15, 2026. By late August 2026, that standard period has passed for most ordinary 2026 real-property appraisal notices.
If you did not file by May 15: do not create a normal protest and assume it is timely. Review your appraisal notice and contact Collin CAD promptly. Texas law has separate correction, late-protest and appeal provisions for some circumstances, but eligibility depends on the facts and should be confirmed through the official appraisal process.
Appraised value, unequal appraisal, certain exemption actions, ownership issues, taxing-unit questions and other appraisal-district or ARB actions may be protestable depending on the statutory route.
Comparable sales, photographs, repair estimates, condition issues, property-record errors, closing documents and other property-specific evidence can support a valuation dispute.
Collin CAD’s current portal centralizes appraisal documents and protest submission. New accounts use the Owner ID and eFile PIN from the latest appraisal or exemption notice.
An appraisal dispute does not automatically cancel tax-payment obligations. If an appeal continues into the collection period, check the applicable Texas payment requirements.
- Open your Collin CAD property record.
- Review the appraisal notice and 2026 protest documents.
- Confirm whether the normal deadline applied to your account.
- If the normal deadline passed, ask which statutory route, if any, remains available.
- Keep every filing confirmation, hearing notice and evidence submission.
If the problem is value, do not spend the first hour calling the Tax Office. The collecting office cannot simply lower an appraisal because the bill feels high.
Collin County Tax Rates, Taxing Units and 2026 Estimates
There is no one single “Collin County property tax rate” that predicts every parcel’s bill. The same property can be taxed by county, city, school district, Collin College, MUD, PID, water or other local taxing entities.
County tax is only one component of a combined local property-tax bill.
Allen ISD, Frisco ISD, McKinney ISD, Plano ISD, Prosper ISD, Wylie ISD and other districts may appear depending on location.
McKinney, Plano, Frisco, Allen, Celina, Prosper and other municipal taxing units may apply.
The college district may be one of the taxing entities shown on the property record and bill.
Some properties have additional local districts that materially change the combined tax amount.
The Collin tax-transparency database updates during August and September as proposed and adopted rates become available.
- Open the county Tax Estimator for planning.
- Check the taxing units assigned to the property.
- Review Collin CAD’s rates and exemption table.
- Use the tax-transparency database for 2026 proposed/adopted rate information.
- Use the final tax statement as the actual payment source.
When the bill changes, compare appraised value + exemptions + taxable value + taxing units + rates. Looking at only one county rate can hide the actual reason for the increase.
Mortgage Escrow and Collin County Property Tax
A mortgage company may pay the tax from escrow, but receiving a tax statement yourself does not prove the lender failed to pay. Collin County recommends forwarding a received statement to the mortgage company when it is responsible for the payment.
Money collected in escrow is not the same thing as a tax payment posted to Collin County. Verify both sides.
New Owner: What to Check After Buying in Collin County
Match the new home with the deed or closing documents.
If the appraisal record still shows old information, use Collin CAD’s correction process.
Do not rely only on prorations shown at closing.
Determine who is responsible for the first bill after closing.
Do not assume a previous owner’s residence exemption transfers automatically.
Collin CAD says eFile PINs are owner-specific.
A tax account can temporarily show historical owner information while appraisal and title records are being updated. Match the property identifiers before assuming you found the wrong parcel.
Collin County Refunds, Duplicate Payments and Recalculated Taxes
Refund handling depends on why money is owed back. Collin County separates ordinary overpayment requests from refunds created after appraisal or exemption recalculation.
The county states that a property-tax overpayment refund must be requested by the remitter of payment.
The current county property-tax page gives a six-to-eight-week processing estimate after an overpayment refund request is received.
Refunds resulting from homestead, age-65 or similar CAD changes are mailed automatically after the Tax Office receives the change.
Texas refund rules generally require refund of qualifying overpaid tax after a certified tax-roll correction reduces liability.
Save the payer name, account number, tax year, receipt, bank record and any CAD correction or exemption notice.
Collin County currently lists 972-547-5067 for property-tax refund questions.
- Open the tax account and confirm both payments.
- Identify the remitter that made the overpayment.
- Gather account number, tax year and payment proof.
- Complete the county refund application when required.
- Keep a copy of the signed request.
- Allow for county processing.
Missing Statement, Wrong Address or No Bill by November
Not receiving a paper statement does not mean the tax disappeared. Collin County’s current FAQ tells taxpayers who have not received a statement by November 1 to contact the Tax Office.
Search the online tax account first. If needed, Collin County lists 972-547-5020 for property-tax statement questions.
Collin CAD handles appraisal-side address records. The county also provides an address-correction process for the Tax Assessor’s records.
Check escrow and the county paid/unpaid status rather than assuming the absence of a paper bill means the lender has paid.
Use the live account to review the current tax record even if the mailed copy is missing or delayed.
Important: Texas law generally provides that failure to receive a tax bill does not by itself invalidate the tax, due date, lien, penalty or collection procedure. Search the account rather than waiting indefinitely for mail.
Collin County Property Tax Contacts
Property-tax phone: 972-547-5020
The county lists Frisco, McKinney and Plano Tax Office locations. All three accept property-tax payments. Check the official page for current address, holiday closure and hours before visiting.
Phone: 469-742-9200
Toll-free: 866-467-1110
Hours: Monday–Friday, 8:00 a.m.–4:00 p.m.
Collin County states that special requests such as tax certificates and SIT must be handled through the McKinney office.
The county FAQ currently lists a $10 fee per tax certificate. Verify the current fee before submitting a request.
Before driving to an office, decide whether your issue is a tax collection problem or an appraisal problem. That determines whether you need Collin County or Collin CAD.
Collin County Property Tax Troubleshooting
Likely cause: too much address detail, wrong search field, inactive account or appraisal-vs-tax-system confusion.
Next action: simplify the address, use owner/account search, then try Collin CAD Property Search if you need the appraisal identifier.
Likely cause: processing delay, wrong year/account, bank rejection or escrow timing.
Next action: compare confirmation, bank record and county payment history before paying again.
Likely cause: appraisal change, missing exemption, different taxing units or new rates.
Next action: compare CAD value/exemptions with the tax bill instead of calling the payment processor first.
Likely cause: application not filed, ownership change, requested documents missing or appraisal record not updated.
Next action: use Collin CAD and check late-filing eligibility if April 30 passed.
Likely cause: servicer transfer, escrow shortage, statement routing or processing delay.
Next action: contact the servicer and county quickly with the bill and escrow records.
Likely cause: owner and escrow servicer both paid.
Next action: identify the remitter of the duplicate payment and follow the county overpayment-refund procedure.
Match the problem to the office before contacting anyone: CAD for appraisal/exemption records; Tax Office for collection/payment records.
Documents Worth Keeping
Tax statement, account number, property location, tax year, current balance and escrow statement.
Receipt, confirmation number, check image, bank record and mailed-payment proof.
Application, required ID, proof of ownership/residence and filing confirmation.
Notice of Appraised Value, comparable sales, photos, repair estimates, property-record errors and evidence receipt.
Both payment records, remitter information, account number, tax year and signed refund application.
Closing disclosure, deed information, mortgage escrow setup and your own exemption application.
Keep proof until the official account or appraisal record shows the action correctly. A submission screen is useful, but the updated government record is the final confirmation you want to see.
Collin County Property Tax Terms
- Property Account Number
- The Tax Office identifier used for tax statements, account lookup, checks, payment research and refunds.
- Property ID
- The Collin CAD identifier used for appraisal-side property records.
- Appraised Value
- The value determined through the appraisal process before tax rates are applied.
- Taxable Value
- The value used by a taxing unit after applicable exemptions or statutory limitations.
- Taxing Unit
- A county, school district, city, college or special district authorized to impose local property tax.
- Residence Homestead Exemption
- A Texas exemption for a qualifying principal residence filed with Collin CAD.
- Appraisal Review Board
- The independent board that hears qualifying protests involving appraisal-district action.
- Delinquency Date
- The account-specific date after which unpaid tax enters the applicable delinquent-tax process.
Official Collin County and Texas Property Tax Resources
Use these links only after identifying the task. Each resource serves a different part of the process.
Collin County Property Tax FAQs
How do I search Collin County property taxes if I only know the address or owner name?
Use the official Collin County Tax Account Lookup. The system supports account-based and owner/address searches. For a property-location search, enter the street number and street name and avoid unnecessary street suffixes or directions. Open the matching account and verify the property, tax year, account type and paid/unpaid status before relying on the result.
When are 2026 Collin County property taxes due if January 31, 2027 is a Sunday?
Collin County tax statements are generally mailed in October and are due upon receipt. Texas normally uses January 31 as the last day to pay before delinquency. Because January 31, 2027 falls on a Sunday, Texas Tax Code weekend rules can make payment on the next regular business day timely for a standard bill, with delinquency beginning the following day. Verify the date printed on the 2026 tax statement and live county account before paying.
Can I pay property taxes through the Collin CAD Taxpayer Portal?
No. Collin Central Appraisal District states that its Taxpayer Portal does not accept property-tax payments. Use Collin CAD for appraisal values, exemptions, property records, appraisal notices and protests. Use the Collin County Tax Office or the collecting office shown for the property to pay taxes.
What should I do if I missed the May 15, 2026 Collin County appraisal protest deadline?
Collin CAD states that the standard 2026 real-property protest deadline was May 15, 2026. If that date has passed, do not assume the normal online protest window remains available. Review your notice and contact Collin CAD promptly to determine whether another statutory correction, late-protest or appeal route applies to your circumstances.
What happens if my mortgage company and I both pay the Collin County property tax bill?
First compare the official tax account payment history with your mortgage escrow records. If a duplicate payment created an overpayment, Collin County says an overpayment refund must be requested by the remitter of payment. Keep both payment records, the account number, tax year and refund documentation before contacting the Tax Office.
Bottom Line
For Collin County property tax, use the Tax Office for the bill and payment and Collin CAD for appraisal value, exemptions and appraisal protests. For the 2026 tax year, watch the fall statement carefully because the normal Jan. 31 date falls on a Sunday in 2027 and Texas weekend rules affect the standard delinquency timing.
Search Account Pay Safely 2026 Dates Exemptions Appraisal Help Official LinksMaterially reviewed and updated using current Collin County, Collin CAD, Texas Comptroller and live CountyPropertyTaxes.us internal-link sources: August 27, 2026.