Florida closes in September. California, September 15 or November 30. See your deadline

Lower your property tax. Pay only if we win.

No minimum property size. One building or your whole portfolio.

Own several properties? Send your schedule and we'll screen all of it.

Your largest controllable property expense.

~1/3

of a commercial building's costs is property tax. For income property, that's about 20–35% the size of NOI.

15–40%

typical reduction for the cases we take and win. On a $5M building that is roughly $10,000 to $40,000 a year, depending on the state.

Every year

we review your assessment automatically and file when there’s a case.

Every dollar off the tax bill is a dollar added to NOI.

What happens after you sign.

Analyze your building and comps.

We comb hundreds of comps across public records and paid private market data, check them against the county's file and your own documents, and build the narrative and evidence packet your county's rules require.

File when there's a case.

If your value is already in line, we tell you and nothing gets filed. If it isn't, we prepare the appeal and file it inside your county's window.

Negotiate with the county.

Most reductions are negotiated with the assessor's office after the filing, and we handle that exchange.

Appear at the hearing.

When a hearing is needed, we prepare the evidence and appear in front of the board for you. We tell you when there is a result.

Your part is signing the forms and sending documents when we ask.

FAQ

How do you know my property is over-assessed?
We compare the county's assessed value against its own records for genuinely comparable properties, plus public sale records. If your value is already in line, we'll tell you, and there's nothing to file.
What do I have to do?
Enter your address and sign two short forms. One authorizes us to file, one is our agreement. We handle the filing and represent the appeal. Most owners spend a few minutes on it.
Why do I sign before I see a number?
Because we can't pull your county's records or file on your behalf without your authorization. Signing costs nothing and commits you to nothing financially. The fee is contingent: if we find no case, or lose one, you owe nothing.
What does it cost?
Nothing up front. If we win, our fee is a share of your first-year savings — the exact rate depends on your state, and it's in the agreement in front of you before you sign. See the rate for your state. Win nothing, pay nothing.
What happens after the first year?
Your signup covers every year, not just one appeal. Appeal Autopilot re-checks your assessment each cycle and files when the numbers support it. Cancel anytime. You only pay when we win.
I own several properties.
Send the addresses. The signup takes a whole schedule, we screen each parcel separately, and one agreement covers all of them.
Can my appeal make my assessment go up?
In some states a review board can raise a value as well as lower it. That is why we check for that exposure before we file: we do not file when we see it, and if it appears after filing we withdraw.
What if you find I overpaid in past years?
Sometimes the county's error runs back further than the current year: square footage wrong on the roll, a parcel assessed twice, an exemption you were owed and never got. Where the law allows we claim those years back too, and the county refunds them. That is money most owners never recover. Our fee applies to what we recover on the same terms: recover nothing, pay nothing. It's less common than a straight reduction, and we'll tell you if we find it.
What if you don't win?
You pay nothing.
Why can you take smaller properties when big firms won't?
Big firms staff every case with hours, so they only take the largest properties. Our software does the records work using the county's own public data, which makes strong cases worth filing at sizes they decline.
Do you guarantee a reduction?
No. No one can honestly guarantee an outcome. We only file cases the county's own data supports. If you do not have a case, we tell you.
Will I have to go to a hearing?
No. Appearing is our job. Many appeals settle on the evidence before a hearing happens. When one is needed, we prepare the case and attend for you. We tell you when there is a result.

Find out what you're overpaying.

Text or call (470) 912-3429 Email info@castellan.so

Serving California, Georgia, and Florida.

Residential and commercial property tax appeals. Any estimate is based on county assessment data and public records and is not a guarantee of any outcome. Representation and fee terms are provided in writing before any filing. See our Terms of Service.