Property Tax Appeals by State

Select your state for statutory assessment ratios, key deadlines, local terminology, and step-by-step filing instructions.

Alabama

AL

Assessment Ratio: 10%

Window: May - July

Term: Appeal

View State Guide

Alaska

AK

Assessment Ratio: 100%

Window: January - April

Term: Appeal

View State Guide

Arizona

AZ

Assessment Ratio: 100%

Window: February - April

Term: Appeal

View State Guide

Arkansas

AR

Assessment Ratio: 20%

Window: July - August

Term: Appeal

View State Guide

California

CA

Assessment Ratio: 100%

Window: July - November

Term: Appeal

View State Guide

Colorado

CO

Assessment Ratio: 7%

Window: May - June

Term: Appeal

View State Guide

Connecticut

CT

Assessment Ratio: 70%

Window: February - March

Term: Appeal

View State Guide

Delaware

DE

Assessment Ratio: 100%

Window: March - May

Term: Appeal

View State Guide

Florida

FL

Assessment Ratio: 100%

Window: August - September

Term: Petition

View State Guide

Georgia

GA

Assessment Ratio: 40%

Window: April - June

Term: Appeal

View State Guide

Hawaii

HI

Assessment Ratio: 100%

Window: December - January

Term: Appeal

View State Guide

Idaho

ID

Assessment Ratio: 100%

Window: May - June

Term: Appeal

View State Guide

Illinois

IL

Assessment Ratio: 33%

Window: Varies by township

Term: Appeal

View State Guide

Indiana

IN

Assessment Ratio: 100%

Window: April - June

Term: Appeal

View State Guide

Iowa

IA

Assessment Ratio: 100%

Window: April - May

Term: Protest

View State Guide

Kansas

KS

Assessment Ratio: 12%

Window: March - April

Term: Appeal

View State Guide

Kentucky

KY

Assessment Ratio: 100%

Window: May

Term: Appeal

View State Guide

Louisiana

LA

Assessment Ratio: 10%

Window: August - September

Term: Appeal

View State Guide

Maine

ME

Assessment Ratio: 100%

Window: Varies by municipality

Term: Appeal

View State Guide

Maryland

MD

Assessment Ratio: 100%

Window: January - February

Term: Appeal

View State Guide

Massachusetts

MA

Assessment Ratio: 100%

Window: January - February

Term: Appeal

View State Guide

Michigan

MI

Assessment Ratio: 50%

Window: February - March

Term: Appeal

View State Guide

Minnesota

MN

Assessment Ratio: 100%

Window: April - May

Term: Appeal

View State Guide

Mississippi

MS

Assessment Ratio: 10%

Window: July - August

Term: Appeal

View State Guide

Missouri

MO

Assessment Ratio: 19%

Window: May - July

Term: Appeal

View State Guide

Montana

MT

Assessment Ratio: 100%

Window: Varies (reappraisal cycle)

Term: Appeal

View State Guide

Nebraska

NE

Assessment Ratio: 100%

Window: June

Term: Protest

View State Guide

Nevada

NV

Assessment Ratio: 35%

Window: December - January

Term: Appeal

View State Guide

New Hampshire

NH

Assessment Ratio: 100%

Window: December - March

Term: Appeal

View State Guide

New Jersey

NJ

Assessment Ratio: 100%

Window: February - April

Term: Appeal

View State Guide

New Mexico

NM

Assessment Ratio: 33%

Window: April - May

Term: Protest

View State Guide

New York

NY

Assessment Ratio: 100%

Window: May - June

Term: Grievance

View State Guide

North Carolina

NC

Assessment Ratio: 100%

Window: January - April

Term: Appeal

View State Guide

North Dakota

ND

Assessment Ratio: 5%

Window: April - June

Term: Appeal

View State Guide

Ohio

OH

Assessment Ratio: 35%

Window: January - March

Term: Appeal

View State Guide

Oklahoma

OK

Assessment Ratio: 11%

Window: March - April

Term: Protest

View State Guide

Oregon

OR

Assessment Ratio: 100%

Window: October - December

Term: Appeal

View State Guide

Pennsylvania

PA

Assessment Ratio: 100%

Window: July - September

Term: Appeal

View State Guide

Rhode Island

RI

Assessment Ratio: 100%

Window: Varies by municipality

Term: Appeal

View State Guide

South Carolina

SC

Assessment Ratio: 4%

Window: Varies (reassessment years)

Term: Appeal

View State Guide

South Dakota

SD

Assessment Ratio: 85%

Window: March - April

Term: Appeal

View State Guide

Tennessee

TN

Assessment Ratio: 25%

Window: May - June

Term: Appeal

View State Guide

Texas

TX

Assessment Ratio: 100%

Window: April - May

Term: Protest

View State Guide

Utah

UT

Assessment Ratio: 55%

Window: August - September

Term: Appeal

View State Guide

Vermont

VT

Assessment Ratio: 100%

Window: May - June

Term: Grievance

View State Guide

Virginia

VA

Assessment Ratio: 100%

Window: Varies by locality

Term: Appeal

View State Guide

Washington

WA

Assessment Ratio: 100%

Window: May - July

Term: Appeal

View State Guide

West Virginia

WV

Assessment Ratio: 60%

Window: January - February

Term: Appeal

View State Guide

Wisconsin

WI

Assessment Ratio: 100%

Window: April - June

Term: Appeal

View State Guide

Wyoming

WY

Assessment Ratio: 10%

Window: April - May

Term: Appeal

View State Guide

District of Columbia

DC

Assessment Ratio: 100%

Window: March - April

Term: Appeal

View State Guide

See the full 50-state appeal-law comparison — assessment ratios, deadlines, and statutes side by side.

All 50 states + DC covered

Ready to appeal your property value?

Check your property for $4.99, get real comparable sales and an AI appeal letter, and file it yourself — keeping 100% of the savings.

Check my property — $4.99