6501 W WILLIAM CANNON DR TX 78749
Travis County, TX · Parcel 6103400000
2026 Property Tax Calendar
◷ Today: September 17, 2026
Valuation Date
Jan 1
Notices Mailed
Apr 15
Protest Deadline
May 15
Roll Certified
Jul 25
Rates Adopted
Sep 1
Bills Mailed
Oct 1
In 14 days
14d
Payment Due
Jan 31
At a Glance
2025
Appraisal Certified
What your home was worth
$149,405,262
Your home's 2025 certified value.
Verified
What your home is taxed on
$50,164,295
Your home's 2025 taxable value — 66% below market value.
Verified
What you paid in taxes
Not available from the county
Your 2025 tax bill isn't in the county's billing file.
ⓘ
Your homestead savings (2025)
No homestead exemption on record
If this is your primary residence, you may be eligible —
apply for a homestead exemption ↗.
2026
Certified
What your home is worth (2026 certified)
$163,312,310
TCAD's 2026 certified appraisal — +9% vs. 2025. Final, not subject to change.
Certified
What your home will be taxed on (2026 certified)
$77,544,939
TCAD's 2026 certified taxable value — 53% below market value. Final, not subject to change.
Certified
Estimated 2026 taxes
Not available yet
We don't have enough billing data to project a 2026 tax estimate yet.
Estimated 2026 homestead savings
No homestead exemption on record
If this is your primary residence, you may be eligible —
apply for a homestead exemption ↗.
Estimated uses last year's (2025) rate assumption
ⓘ.
This Account Includes 4 Units
(2026 values — the figures above on this page are the sum of these rows)
| Unit (prop_id) | Owner | Address | Market Value | Assessed Value | Taxable Value |
|---|---|---|---|---|---|
| 391051 | NXP SEMICONDUCTOR USA INC | 6501 W WILLIAM CANNON DR 200 AUSTIN, TX | $70,785,160 | $70,785,160 | $70,785,160 |
| 816414 | NXP SEMICONDUCTOR USA INC | 6501 W WILLIAM CANNON DR 200 AUSTIN, TX 78735 | $23,258,160 | $23,258,160 | $1,697,846 |
| 816416 | NXP SEMICONDUCTOR USA INC | 3501 ED BLUESTEIN BLVD AUSTIN, TX 78721 | $68,993,590 | $68,993,590 | $4,911,533 |
| 819872 | NXP SEMICONDUCTOR USA INC | 6501 W WILLIAM CANNON DR TX 78749 | $275,400 | $275,400 | $150,400 |
Satellite View
Imagery: Esri
Satellite image not available
We couldn't locate this property on the map — this can happen for parcels whose address our geocoder can't confidently match.
Your Tax Bill, This Year
Your 2026 Value: Preliminary → Certified
how your 2026 value moved since the June 9, 2026 preliminary notice
| 2026 Preliminary Preliminary | 2026 Certified Certified | Change | |
|---|---|---|---|
| What your home is worth | $163,312,310 | $163,312,310 | +0 (+0.0%) |
| What your home will be taxed on | $77,544,939 | $77,544,939 | +0 (+0.0%) |
Your Exemptions
You have 1 exemption applied to this property (as of the 2026 preliminary roll):
| Freeport | FR |
How We Got Here
Your Home's Value Over Time
Here's how your home's value has changed over the past 6 years.
Your Home's Value vs. What You're Taxed On
gap up to 71.1%
The top line is your home's certified market value. The bottom line is your taxable value — the number your tax bill is actually calculated from. The gap between them is real money: it's what your homestead exemption and value-growth cap are protecting you from being taxed on.
How This Parcel Compares
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