Duval County Property Tax Appeal (Jacksonville TRIM & VAB)

Appeal Duval / Jacksonville TRIM within 25 days. DR-486 received (not postmarked) at Clerk VAB; COJ PA evidence exchange, beach-town & downtown comps, $29.99 packet.

Duval County Property Appraiser (COJ PA) sets just value for Jacksonville’s urban core, Southside, Mandarin, Riverside-San Marco, and the Atlantic/Neptune/Jacksonville Beach communities. That TRIM Notice starts a mid-August cycle that drives every taxing authority on your Duval County bill.

The Duval County Value Adjustment Board is a separate entity from the Property Appraiser — petitions are filed and heard through the Duval Clerk’s VAB (vab.coj.net), not with the Property Appraiser’s office alone. Sending your petition to the wrong office can cost you time you do not have inside the 25-day window.

Duval County’s VAB portal requires petitions to be received by the deadline — an online submission or mailed petition that is merely postmarked on time but arrives late generally does not satisfy the requirement. Build in a buffer; do not file at the last possible hour.

Jacksonville’s downtown core, Southside office/residential mix, Mandarin’s established suburbs, Riverside-San Marco’s historic housing stock, and the beach towns (Atlantic Beach, Neptune Beach, Jacksonville Beach) are different Duval County buyer pools. Keep comps inside the same segment before you argue a lower just value with Form DR-486.

You may speak informally with Duval County Property Appraiser staff about your TRIM value, but that conversation does not replace filing Form DR-486 with the Clerk’s VAB and does not extend the 25-day window. Treat any informal discussion as prep for your magistrate hearing — bring Jacksonville-segment comps and proof your petition was received by the VAB deadline.

After DR-486 is received by the Duval Clerk’s VAB, follow the evidence-exchange instructions on your hearing notice — upload Jacksonville-submarket comps through vab.coj.net and provide copies to the Property Appraiser as required before the magistrate deadline. Late evidence is often excluded even when the petition met the 25-day TRIM window.

When is the Duval County property tax appeal deadline for 2026?

25 days from the mailing date on your TRIM Notice (typically mid-August).

Florida law generally gives you 25 days from the mailing date of your TRIM Notice to file a petition with the Value Adjustment Board (VAB).

The petition is typically Form DR-486; confirm current versions with your county Property Appraiser and VAB clerk.

Who do I file a Duval County appeal with?

File your Duval County VAB petition with City of Jacksonville — Property Appraiser VAB page. Explains the VAB is separate from the Property Appraiser.

Duval County Property Appraiser

TRIM notices, homestead, and property records

City of Jacksonville — Property Appraiser VAB page

Explains the VAB is separate from the Property Appraiser

Duval County VAB petitions (Clerk)

Online DR-486 filing and hearing scheduling

Duval Clerk — Value Adjustment Board

Forms, fee schedule, and VAB contact information

How do I appeal property taxes in Duval County?

Note just value, assessed value, exemptions, and the mail date printed on the bottom-right of the notice — that date starts your 25-day clock.

Read your Duval County TRIM Notice carefully

Note just value, assessed value, exemptions, and the mail date printed on the bottom-right of the notice — that date starts your 25-day clock.

File Form DR-486 with the Duval Clerk’s VAB — not the Property Appraiser alone

Submit your petition through the Duval VAB portal well before the deadline, since the petition must be received (not merely postmarked) by the cutoff.

Confirm filing fees on the current VAB fee schedule

Duval VAB petitions carry a filing fee per petition category — confirm the current fee table on the Duval Clerk’s VAB pages before you submit.

Build Jacksonville-submarket comps

Match city segment and product type — downtown core, Southside, Mandarin, Riverside-San Marco, and the beach towns (Atlantic Beach, Neptune Beach, Jacksonville Beach) are different Duval County buyer pools.

Exchange VAB evidence before the hearing deadline

Follow the evidence-exchange date on your Duval VAB notice — upload comps through vab.coj.net and provide copies to the Property Appraiser as required before the magistrate hearing.

Prepare for the special magistrate hearing

Organize three to five adjusted comparable sales, photos for condition issues, and a one-page value summary for your Duval County VAB hearing.

What form do I file for a Duval County Property Appraiser appeal?

DR-486 (VAB Petition): Standard petition to the Duval County Value Adjustment Board challenging your assessment.

DR-486 — VAB Petition

Standard petition to the Duval County Value Adjustment Board challenging your assessment.

DR-501 — Homestead Exemption Application

File separately with the Duval County Property Appraiser if homestead is missing.

What happens at a Duval County VAB hearing?

Duval County VAB hearings favor organized comp packets tied to your specific Jacksonville segment. Lead with adjusted sales and your concluded just value; magistrates discount broad “Jacksonville average” arguments.

Optional informal COJ PA review

Duval County Property Appraiser staff may discuss your TRIM value informally, but that conversation does not replace filing Form DR-486 with the Clerk’s VAB or extend the 25-day window. Petitions must be received by the VAB deadline — not merely postmarked.

Special magistrate hearing

Duval County VAB hearings favor organized comp packets tied to your specific Jacksonville segment. Lead with adjusted sales and your concluded just value; magistrates discount broad “Jacksonville average” arguments.

Beach-town coordination

Atlantic Beach, Neptune Beach, and Jacksonville Beach properties should use sales from the same beach segment rather than inland Southside or Mandarin comps, unless a true product match justifies it.

Downtown condo evidence

Downtown Jacksonville and Southside condo appeals need building-level or competing-tower sales with HOA fee adjustments — not Mandarin single-family medians. Upload by the Duval VAB evidence deadline on your notice.

Received, not postmarked

Duval County VAB filings must be received by the deadline. Online filings should be submitted well before any stated cutoff time, and mailed petitions need enough lead time to physically arrive — a postmark date alone will not save a late-arriving petition.

Evidence exchange with COJ PA

After DR-486 is received by the Duval Clerk’s VAB, exchange evidence by the deadline on your hearing notice — upload through the VAB portal and follow Duval Property Appraiser copy requirements. Late packets are often excluded even when the petition was timely.

After the magistrate decision

Read your Duval County VAB order for circuit-court appeal deadlines — these windows are short and are not extended because you spoke informally with Property Appraiser staff beforehand.

What evidence does Duval County Property Appraiser / the VAB actually use?

Adjusted comparable sales supporting a lower just value as of January 1, inside your Duval County city segment (downtown, Southside, Mandarin, Riverside-San Marco, or beach towns).

Adjusted comparable sales supporting a lower just value as of January 1, inside your Duval County city segment (downtown, Southside, Mandarin, Riverside-San Marco, or beach towns).

Documentation when similar homes or condo units are assessed below your implied value per square foot.

Proof your Form DR-486 petition was received (not merely postmarked) by the Duval Clerk’s VAB before the deadline.

Proof of timely COJ PA evidence exchange and VAB portal upload before the magistrate deadline (separate from the TRIM filing window).

FAQ

What is the Duval County TRIM appeal deadline?

Generally 25 days from the mailing date printed on your TRIM Notice. File Form DR-486 with the Duval Clerk’s Value Adjustment Board before that deadline — confirm the exact date on your own notice.

Do I file a Duval County VAB petition with the Property Appraiser?

No — the Value Adjustment Board is a separate entity from the Duval County Property Appraiser. File Form DR-486 through the Duval Clerk’s VAB portal (vab.coj.net), not with the Property Appraiser’s office alone.

Does a postmark count for the Duval County VAB deadline?

Generally no — Duval County VAB petitions must be received by the deadline, not merely postmarked. File online or mail with enough time for the petition to arrive before the cutoff.

Is the deadline shown on the Duval VAB portal the same every year?

No — any specific date and time shown on the Duval VAB portal is a year-specific example. Always confirm the deadline printed on the bottom-right of your own current TRIM Notice.

Are there filing fees for a Duval County VAB petition?

Yes — Duval VAB petitions carry a filing fee that varies by category. Confirm the current fee schedule on the Duval Clerk’s VAB pages before submitting.

How should I pick comps for downtown vs. Mandarin vs. the beaches?

Stay inside the same Duval County segment and product type. Downtown condo sales rarely support Mandarin or beach-town single-family appeals without heavy adjustments.

Does Protestly help Duval County owners?

Yes — Protestly builds comparable sales evidence packets for Duval County residential properties for $29.99.

When is Duval County VAB evidence due?

Separate from the 25-day TRIM filing window — confirm the evidence-exchange date on your Duval VAB hearing notice and upload comps before that deadline.