
Grayson County homeowners overpay $1,250/year due to assessment errors. We fix that.
β Protests Made Simple - quick, easy, and accurate
β Licensed Tax Pros - Texas experts
β Only Pay If We Win - No Savings, No Fee Guaranteed
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Grayson County homeowners overpay $1,250/year due to assessment errors. We fix that.
β Protests Made Simple - quick, easy, and accurate
β Licensed Tax Pros - Texas experts
β Only Pay If We Win - No Savings, No Fee Guaranteed

If you just opened your Grayson County property tax bill and felt that familiar punch to the gut, you're not alone. With Sherman home values jumping 15% last year while incomes stayed flat, thousands of homeowners from Denison to Van Alstyne are getting crushed by assessments that don't match reality. The worst part? You suspect you're paying more than you should, but proving it feels impossible when you're already working 50-hour weeks.
Here's what most Grayson County homeowners don't realize: the CAD makes mistakes on roughly 40% of assessments. Your neighbor with the bigger house paying $800 less? They probably protested. That new construction down the street assessed lower than your 15-year-old home? Someone challenged the numbers. The system rewards those who know how to work it, and punishes everyone else with inflated bills year after year.
Grayson CAD processes over 85,000 properties with limited staff and tight deadlines. They rely on automated systems that miss crucial details about your specific property. Maybe your home backs up to Highway 75 noise, has foundation issues, or lacks the upgrades they assume. These factors can easily inflate your assessment by $20,000-$50,000, costing you $400-$1,000 annually in unnecessary taxes.
We've seen Sherman homes assessed as if they have pools when they don't, Pottsboro properties valued using Denison comparables, and Van Alstyne homes penalized for "improvements" that were actually repairs. The CAD isn't trying to overcharge you β they're just overwhelmed and working with incomplete data. That's where we come in.
Every year you don't protest is money you'll never get back. If your home is overassessed by just $30,000 (common in rising markets), you're overpaying roughly $627 annually at Grayson County's average tax rate. Over five years, that's $3,135 in unnecessary taxes β enough for a family vacation or major home repair you've been putting off.
The protest deadline typically falls around May 15th. Miss it, and you're locked into another year of overpaying while watching your neighbors who protested enjoy lower bills. We've had clients kick themselves for waiting, saying "I should have done this years ago" when they see their savings.
You don't need to become a property tax expert or take time off work for hearings. Our licensed professionals know exactly which comparable sales strengthen your case, which assessment errors to target, and how to present evidence that gets results. We've successfully protested hundreds of Grayson County properties and know what works with local officials.
The entire process takes you about five minutes to get started. We analyze your property, build your case using local market data, file all paperwork before the deadline, and handle any hearings if needed. You'll get updates along the way, but the heavy lifting is completely off your plate. Most clients are surprised how simple we make it.
Our fee is 1% of your assessment reduction β and only if we win. If you'd rather manage it yourself, our self-serve platform is available for a flat $129/year. No upfront costs, no hourly fees, no risk to you. If we can't reduce your assessment, you pay nothing. You only pay when we win, so the fee comes out of savings you would not otherwise have had. Over time, you're keeping thousands more of your hard-earned money instead of sending it to the tax office.
Ready to see if you're overpaying? Get your free property analysis now and discover what your Grayson County home should actually be assessed at. The deadline approaches quickly, and starting early gives us the best chance to maximize your savings.

Sign up and TaxDrop handles the paperwork, the evidence, and the filing. It takes less than 3 minutes to enroll.
Step 1: Review Your Notice
Receive Notice of Appraised Value from Grayson CAD showing property valuation (mailed by April 15).
Step 2: File Your Protest
Submit Notice of Protest to Grayson CAD by May 15 or within 30 days of receiving notice.
Step 3: Evidence Submission
Provide comparable sales, appraisals, and documentation to support lower valuation.
Step 4: Informal Review
Meet with appraiser for informal discussion (optional but recommended).
Step 5: ARB Hearing
Present case to Appraisal Review Board panel if informal review unsuccessful (typically May-August).
Step 6: Decision & Adjustment
ARB issues written order; if successful, assessed value reduced and reflected in tax bill.
Filing Deadlines:
Required Documents:
Where to Submit:
Grayson County Appraisal District, 315 S Crockett St, Sherman, TX 75090
Official resources:
May 15, or 30 days after Grayson CAD mailed your Notice of Appraised Value, whichever is later. If the deadline falls on a weekend or holiday, it moves to the next business day. Use the date printed on your notice.
Source: graysonappraisal.org, comptroller.texas.gov
File online through the Grayson CAD Taxpayer Portal using your property ID and E-File PIN. Contact Grayson CAD if you need the PIN. The portal doesn't take late protests; those go by email, fax or the office drop box at 512 N. Travis St., Sherman.
Source: graysonappraisal.org
After you submit through the portal, you can upload evidence, and the hearing details show up in your appeal once the ARB schedules it. If you disagree with the ARB's order, you can appeal to district court within 60 days of receiving it, or use binding arbitration or SOAH if your property qualifies.
Source: graysonappraisal.org, comptroller.texas.gov
A residence homestead gets a $140,000 school district exemption. Owners 65 or older or disabled get an additional $60,000 school exemption, and other taxing units may offer local options. Apply with Grayson CAD on Form 50-114; the general deadline is before May 1. An exemption is separate from a protest, and you can have both.
Source: comptroller.texas.gov
Yes. TaxDrop Pro is full service in Grayson County at 1% of the assessment reduction, and you pay only if we win. TaxDrop One is $129 per property per tax year, refunded if there's no reduction.