Gwinnett County Property Tax Appeal: Step-by-Step Guide 2026

Gwinnett’s growth and turnover make it one of Georgia’s busiest appeal counties. If your notice value overshoots what buyers are paying nearby, a timely PT-311A filing and organized comparables can produce real relief.

Gwinnett assessor contact

Gwinnett County Board of Tax Assessors
75 Langley Dr, Lawrenceville, GA 30046
Phone: 770-822-8020
Confirm current filing instructions on your notice and the county’s official site before you mail anything.

Deadlines

Track the date printed on your notice—typically about 45 days to appeal. Metro taxpayers often receive notices in spring; mark your calendar the day the letter arrives.

Finding Gwinnett comps

Prioritize sales within your micro-market, similar square footage and bed/bath count, and closing dates within the last several months when possible. Adjust for lot size, basement finish, and traffic or school locational differences.

Typical savings

Savings scale with how far your value moves and local millage. Many homeowners see hundreds of dollars per year after even a modest percentage reduction—more if a multi-year freeze applies.

Hearing tips

Bring a concise packet: notice, PT-311A, comp map, adjustment grid, and photos. Practice a two-minute opening. Start your Gwinnett analysis with AppealPilot.