Galveston County Property Tax Protest Savings Calculator

See what a lower GCAD value would save, unit by unit, with Galveston County's 2025 rates preloaded.

Short answer: savings = value reduction × your combined rate. In League City (1.65521%), every $10,000 off your value saves about $165.52 a year.

Build your estimate

Rate source

Pick my taxing units

Enter a combined rate I already know

Taxing units

County

City

If you live outside any city limits, choose "Unincorporated / no city."

School district (ISD)

Search special districts

MUDs, ESDs, and similar districts depend on your exact address. None are selected by default — verify yours on your appraisal district's site.

Select a county first.

Property values

Noticed (appraised) value this year ($)

Target value after protest ($)

Support this with comparable sales or an unequal-appraisal comparison — see the prep checklist below.

Do you have a residence homestead exemption on this property?

Yes

Are you age 65+ or disabled?

Yes

Only affects the units-picker mode, where it adds the school homestead exemption automatically.

Per-unit savings
Taxing unit	Rate	Noticed tax	Target tax	Savings

Galveston County example

$400,000 noticed → $360,000 target, homestead, pick League City and Clear Creek ISD.

$5,264.24Tax at $400,000
$4,602.16Tax at $360,000
$662.08Yearly savings
1.65521%Combined rate

Appraisal district: Galveston Central Appraisal District (GCAD)
Protest deadline: May 15 (next business day if that falls on a weekend), or 30 days after the notice is mailed — whichever is later (Tax Code §41.44). Check your notice.

Questions

How much could a protest save in League City?

If a $400,000 League City homestead is lowered to $360,000, the bill drops by about $662.08 a year: the $40,000 reduction × the combined 1.65521%.

How do I file a protest with GCAD?

Online through the Taxpayer Portal (portal.galvestoncad.org), using the Owner ID and eFile PIN on your Notice of Appraised Value (if you do not have them, email gcad@galvestoncad.org). Drop-off before the deadline: 9850 Emmett F. Lowry Expressway, Ste A, Texas City TX 77591 (Mon to Thu 7:30 a.m. to 5:30 p.m., Fri 8 a.m. to noon). Phone (409) 935-1980.

What is the Galveston County protest deadline?

May 15 (next business day if that falls on a weekend), or 30 days after the notice is mailed — whichever is later (Tax Code §41.44). Your notice from GCAD shows the exact date.

Do I need to hire a protest company?

No. Filing is free and you can present your own evidence. The free GCAD protest kit walks you through it.