Property tax appeals · Nationwide screening

You are probably overpaying property tax.
We already know by how much.

Every other appeal firm waits for you to get angry at a notice and go shopping. We work the other direction: we screen nearly 122 million mapped parcels against comparable sales and assessment data, identify the over-assessed ones, and bring you a finished evidence packet before your filing window closes.

15% of first-year savings. No fee unless your assessment comes down.

The industry is built backwards

How it works today

  1. Your assessment notice arrives.
  2. You suspect it is high, but you cannot prove it.
  3. You search for a firm, in the two weeks before a deadline you did not calendar.
  4. You sign 25–40% of your savings away, and the analysis starts from zero.

Reactive. Deadline-driven. Priced for scarcity.

How RefundSnap works

  1. Your parcel is already in our screener and already scored.
  2. If the assessment looks high, we build the comparable-sales evidence first.
  3. We contact you with the number, the deadline, and the packet.
  4. You approve. We file. You pay 15% of what we actually save you.

Proactive. Calendar-driven. Priced on our tech margin.

Four steps, and three of them are ours

01

Screen

Your parcel is scored against comparable sales, assessment history, and owner-level portfolio data to produce an over-assessment estimate and a modeled win probability.

02

Evidence

We generate a jurisdiction-specific evidence packet: the comparable set, the indicated value, the assessed value, and the dollar savings we intend to argue for.

03

You approve

You see the packet and the fee before anything is filed. If the case is weak, we tell you and we do not file. No retainer, no minimum, no signature to see the number.

04

We file

We file as your authorized agent where the state allows it, and through a licensed local attorney, broker, or registered consultant where the state requires one.

Proof

The screener is not a roadmap. It is running.

Most firms in this category start with an office and hire analysts. We started with the data. Below is the actual state of the parcel layer behind RefundSnap, from an exhaustive county-by-county census of our production database on August 31, 2026 — every one of 3,243 county codes counted individually, not estimated. Of those codes, 1,820 counties carry real depth and hold 99.7% of the parcels below; the rest are thin boundary-spillover rows we count honestly but do not claim as county coverage.

121,863,239 Parcels mapped nationwide Roughly 77% of the estimated 156–161 million parcels in the United States, across 51 jurisdictions. This is the identifier and boundary layer. Ingestion is continuous.
64,417,909 Parcels an appeal can be built from Parcels carrying both an assessor identifier and a usable assessed or market value — 53% of what we hold, about 41% of the country. We publish this separately from the map count because only these support an appeal argument today. Up 788,244 in the last two days as Summit, Trumbull, Licking, and Hamilton counties (Ohio) came online.
51 Appeal calendars tracked 50 states plus the District of Columbia, with statutory deadlines and reassessment cycles.
87,518,051 Parcels with an owner of record Owner names resolve on 72% of mapped parcels, so we can appeal a whole portfolio, not one parcel at a time.

Where the parcel data is deepest

Parcels mapped per state from the August 31, 2026 county census, after correcting 89 counties that had been attributed to a neighbouring state. All 51 jurisdictions are in the database; the ten deepest are shown here.

Where we are strongest, and where we are not

Mapping a parcel and being able to appeal it are two different things, so we report them separately. Assessed values are strongest in Florida (10.31M appeal-ready of 10.44M mapped), Texas (8.37M of 10.99M), North Carolina (5.59M of 5.86M), New York (4.63M of 5.91M) and Wisconsin (3.14M of 3.51M). They are effectively absent in Ohio (1,983 of 6.21M), Iowa (22 of 4.65M), Pennsylvania (26 of 4.08M), Virginia (74 of 3.82M) and Indiana (0 of 3.60M), and thin in California, where 1.39M of 8.10M mapped parcels carry a value. Those states are our active build queue. We would rather show you the gap than average it away.

Deadlines we are working right now

Swipe the table sideways to see each window and its status.

Current property tax appeal filing windows
JurisdictionWindowStatus as of Aug 20, 2026
CaliforniaJuly 2 – Sept 15, extended to Nov 30 where notices mail after Aug 1Open
WashingtonJuly 1, or 60 days from the notice of valueOpen
Florida25 days from the TRIM notice, mid-August mailingOpen
PennsylvaniaAugust – October, set county by countyOpen
Georgia45 days from the notice of assessmentClosing
MassachusettsFebruary 1, or 30 days from the actual tax billNext: Feb 2027
TexasMay 15, plus a 60-day supplemental window on new noticesNext: May 2027
New York CityMarch 1, Tax CommissionNext: Mar 2027

Deadline and reassessment sources: California BOE rules for tax agents, appeal deadlines by state, protest deadline guide, Mass.gov real estate tax appeals, Texas TDLR property tax consultants, Tax Foundation reassessment provisions. National parcel universe for the coverage percentage: Regrid (160.8M assembled) and ReportAll (161.1M); LightBox puts nationwide coverage above 150M. Our own parcel, owner and value counts come from an exhaustive county-by-county census of our production database on August 31, 2026 — all 3,243 county codes counted individually. They are not estimates, and not third-party figures. We report parcel depth rather than a county headcount on purpose: 1,700 counties hold 5,000 or more parcels each and account for 121,460,511 of the total, while 1,412 county codes hold fewer than 100 parcels each — 2,867 rows combined, almost entirely parcels that straddle a county line and were published by the neighbouring assessor. Counting those codes as covered counties would overstate our footprint, so we do not.

Priced on our margin, not your panic

Commercial & investment

15%of first-year savings

  • No fee unless the assessment is reduced
  • No fee on reductions under $1,000
  • Fee capped at $25,000 per parcel per year
  • Evidence packet delivered before you sign
Most portfolios

Portfolio, 10+ parcels

12%plus $500 per year platform fee

  • One owner rollup, every parcel screened
  • Multi-state deadline calendar managed for you
  • Annual re-score, so last year's win is defended
  • Single point of contact across jurisdictions

Single-family homeowner

$79plus 10% of savings

  • Flat filing fee, low contingency
  • Same evidence packet as commercial files
  • Straight answer if your case is weak
  • We will tell you when a DIY filing is smarter

For comparison, the national firms in this category typically charge 25–40% of savings. In states that require a licensed attorney, broker, or registered consultant to file, your engagement is with that licensed professional and the headline rate reflects their fee schedule.

Where we file, plainly stated

Screening is nationwide from day one. Who signs the filing depends on state law, and we would rather say so up front than discover it at a deadline.

Direct

California · Washington · Georgia · Massachusetts

Non-attorney agent representation is permitted at the assessment-appeal level. We file as your authorized agent of record.

Licensed partner

Texas · Florida · New York City · Illinois · Ohio · New Jersey · Michigan

These jurisdictions require a registered consultant, licensed broker, CPA, or attorney. We supply the evidence; a licensed local partner files.

Screening & referral

All remaining states

Your parcel is scored and monitored. If the case is strong, we either place it with a vetted local professional or hand you the evidence to file yourself.

Have us check your parcel

Tell us where the property is. We will pull it from the screener, tell you whether the assessment looks high, and give you the filing deadline that applies to you. No cost, no obligation, no contract to see the number.

  • Answer within one business day
  • We say so when the case is not worth filing
  • Portfolio owners: send a list, we will screen all of it

Prefer email? appeals@refundsnap.com

Submitting this form creates no engagement and no attorney–client relationship. RefundSnap is not a law firm and does not provide legal or tax advice. In jurisdictions that require licensed representation, filings are made by a licensed attorney, broker, CPA, or registered property tax consultant.