Anthony Licciardello | April 21, 2026
Property Tax
If you recently opened a white envelope with a new assessed value printed on the inside, you are not alone. More than a dozen New Jersey municipalities are actively running revaluations right now — Verona, Glen Ridge, and West Orange finished their work in 2025 for the 2026 tax year; New Providence, Berkeley Township, and others are on track for 2027 — and every one of those programs ends with a single piece of mail that lands in every property owner's mailbox with a number that changes the conversation.
The NJ property tax revaluation letter is the most important piece of financial mail most homeowners receive in any given decade, and it's also the one most people misread. This guide walks through what the letter actually says, what it doesn't, how the 30-day informal review works, how the formal appeal differs, and the specific technical rule — Chapter 123 — that quietly disappears in a revaluation year and changes the math of whether an appeal is worth filing.
The letter is sent by the revaluation firm contracted by your municipality — in most NJ reval projects currently underway, that's Professional Property Appraisers (PPA) based in Delran, which has handled Verona, New Providence, Glen Ridge, Berkeley Township, and others. It contains two key numbers.
The first is the new assessed value for your property, benchmarked to market conditions as of October 1 of the year immediately preceding the tax year. For a 2026 tax-year reval, that's October 1, 2025. For a 2027 tax-year reval, it's October 1, 2026. This date matters because any appeal you file later will be evaluated against market conditions on that specific day — not today, not next month.
The second is an estimated annual property tax calculated by taking the new assessment and applying a placeholder tax rate derived from prior-year budget figures. The estimate is not your final bill. It almost never is. Here's why.
| What's in the Letter | What's Not |
|---|---|
| New assessed value (Oct 1 benchmark) | The actual 2026/2027 tax rate |
| Estimated annual tax (placeholder) | Senior Freeze / ANCHOR / Veteran's adjustments |
| Informal review phone number + deadline | The comparable sales used to set your value |
| Formal appeal filing instructions | Whether your tax share is going up or down |
The estimated tax on your reval letter uses prior-year budget math because the new-year budgets aren't finalized yet. Your actual tax bill depends on the new (lower) tax rate that gets set after the municipal, school, and county budgets are adopted. The estimate is a preview, not a price tag.
What the letter does not tell you: whether your new tax burden is going up or down relative to your current bill. That answer depends on two variables the letter can't show — the new tax rate (not yet set) and your personal tax relief programs (Senior Freeze, ANCHOR, Veteran's Deduction, the Disabled Veteran Exemption), which apply on top of whatever the raw math produces.
The letter also does not tell you how the revaluation firm arrived at your number. It states the conclusion but not the analysis. To see the analysis, you need to request the property record card from your municipal assessor's office. The card is a public record. Every homeowner is entitled to it. And in our experience, every homeowner who is considering an appeal should pull it before doing anything else.
The first thing to do is check the property record card for errors. This is the revaluation firm's internal documentation of what your house actually is — and in our experience across NJ reval projects, errors on the card are the single most common reason assessments come in too high.
Start with the hard numbers. Gross living area square footage, total finished square footage, bedroom count, full and half bathroom counts, basement finish status, garage type and size. Compare each one to your actual home. Measure if necessary. Incorrect square footage is the most common material error we see, and it's also the easiest to correct because it's empirically verifiable.
Next, condition grade. The revaluation firm assigns your property an overall condition score — "Good," "Average," "Fair," or similar — and that grade materially affects value. If your home has deferred maintenance, functional obsolescence (an outdated kitchen that wasn't captured in the inspection), or structural issues, the grade should reflect that.
Finally, improvements. Did the card miss a finished basement that you've never finished? Did it attribute an addition to your property that doesn't exist? Did it assume premium kitchen finishes when yours are original to the 1970s? All of these are correctable, and all of them move the valuation.
While you're reviewing the card, compare your new assessed value against what you believe your property would sell for today. Ignore the estimated tax on the letter for this step — it's too noisy. Focus on the pure value question: Is the new assessment higher than what my house would sell for? If yes, how much higher? If no, or within a few percent, the appeal math changes fundamentally.
| Gap Between Assessment & Market Value | Reval Year | Non-Reval Year |
|---|---|---|
| 0–5% above market | Not worth it | Not worth it |
| 5–10% above market | Worth filing | Likely loses (Ch. 123) |
| 10–15% above market | Strong case | Borderline (Ch. 123 margin) |
| 15%+ above market | File immediately | File immediately |
Every NJ reval letter includes a phone number and a narrow window — typically two to four weeks — during which the property owner can call the revaluation firm directly and request an informal review. This is a conversation. There is no form to file, no hearing to schedule, no filing fee to pay. A representative from the firm (PPA or another contractor) sits down with you, pulls up the property record card, reviews the comparable sales used to set your value, and listens to whatever data you bring to challenge the number.
The informal review is the single most efficient stage of the entire process. It resolves a meaningful share of valuation disputes before they ever become formal appeals. The reason is simple: when a homeowner brings photographs of an unfinished basement, contractor estimates for a failing roof, accurate square footage, or three strong comparable sales the firm didn't use, the firm has every incentive to fix the number on the spot. Corrections made at this stage don't cost the municipality anything and save everyone the time and cost of a formal proceeding.
The evidence package that moves the needle in an informal review is more modest than what you'd need for a formal appeal. Three to five comparable sales from your immediate neighborhood, closed within the 12 months leading up to the October 1 valuation date. Photographs showing actual condition of the property, especially interior condition if the property record card miscategorized it. Corrected measurements if square footage is wrong. Any recent appraisal you have from a refinance or prior transaction — useful as a data point even if it's not perfectly contemporaneous.
What does not help: comparing your new assessment to your neighbor's. The argument "our houses are similar and they're assessed at $X" doesn't resolve anything at the informal review because the firm can easily demonstrate that your neighbor's situation is different. Stick to your property's market value, evidenced by comparable sales.
If you're in a reval municipality and the informal review deadline has already passed, you still have formal appeal rights. The informal review is a convenience, not a prerequisite. The formal appeal deadline (May 1 in reval years) is the legal hard stop.
The formal appeal is a filing with your County Board of Taxation. Every one of New Jersey's 21 counties has a County Board, and each one handles appeals for every municipality within its borders. The deadline structure is not complicated, but it is specific.
In a non-revaluation year, NJ appeals must be filed and received by April 1 of the tax year, or 45 days from the bulk mailing of the Notice of Assessment, whichever is later. In a year where your municipality has completed a revaluation or reassessment, the deadline extends to May 1, reflecting the additional complexity and the larger volume of owners reviewing new numbers simultaneously. The revaluation extension is not automatic for every reassessment — only full reval years qualify — but PPA's current active projects (Verona 2026, New Providence 2027, Berkeley 2027) all trigger it.
| County Category | Standard Deadline | Reval Year Deadline |
|---|---|---|
| 18 standard counties (Union, Essex, Ocean, Bergen, Passaic, and 13 others) |
April 1 | May 1 |
| 3 exception counties (Monmouth, Burlington, Gloucester — annual reassessment) |
January 15 | January 15 (no extension) |
Monmouth, Burlington, and Gloucester Counties operate on a completely different calendar. They use an annual reassessment program and issue Notice of Assessment postcards each November for the following tax year. In those counties, appeals must be filed by January 15 of the tax year — not April 1, not May 1. If you own property in one of those three counties, the timeline in this guide does not apply the same way. Check your county board's website for the exact deadline.
The original Petition of Appeal (Form A-1) is filed with the County Board of Taxation. Copies must be served on your municipal assessor and municipal clerk. Most counties accept online filings through the NJ Association of County Tax Boards portal; paper filings are also accepted in all 21 counties.
Filing fees scale with assessment amount. At the time of this writing, the fee structure is unchanged since 1979:
| Assessed Value | Current Filing Fee | Proposed (S4909, Not Yet Enacted) |
|---|---|---|
| Under $150,000 | $5 | $25 |
| $150,000 – $500,000 | $25 | $75 |
| $500,000 – $1,000,000 | $100 | $150 |
| Over $1,000,000 | $150 | $200 |
Hearings are typically scheduled within three months of the filing deadline — May through July for most NJ municipalities. Decisions are not rendered at the hearing. The County Board issues a written judgment, which is mailed to you. If you are dissatisfied with the judgment, you have 45 days from the mailing date to escalate to the NJ Tax Court.
This is the technical rule most revaluation guides get wrong, and it matters.
Chapter 123 is a 1973 New Jersey law (codified at N.J.S.A. 54:3-22) that creates a "common level range" as a fairness test in property tax appeals. In normal (non-reval) years, the state Division of Taxation publishes each municipality's average assessment-to-sales ratio, and the common level range is that ratio plus or minus 15 percent. If your property's implied assessment-to-market ratio falls within the common level range, your assessment is presumed correct regardless of your evidence. If it falls outside the range — specifically, if your assessment-to-market ratio exceeds the upper limit — the County Board is required to reduce your assessment to the municipality's average ratio.
In non-reval years, Chapter 123 effectively creates a 15% over-assessment threshold. You can't win a small appeal — your assessment has to be meaningfully outside the range. This is the single biggest reason most NJ property tax appeals fail in non-reval years.
In the year of a completed revaluation or reassessment, Chapter 123 does not apply. There is no common level range and no 15% threshold. Every property's assessment is presumed to equal 100% of market value — that's the entire point of a reval — so the only question in an appeal is whether the assessment, as set, actually exceeds market value. A 5% over-assessment that would lose under Chapter 123 in a normal year is potentially winnable in a reval year.
Practically, this changes the math on whether to file. In a non-reval year, a homeowner whose property is assessed 8% above market rarely files — the appeal can't win. In a reval year, that same 8% gap is the basis for a winnable appeal, and the reduction translates directly into lower taxes for every year until the next revaluation.
The Freeze Act, a related provision, generally protects reduced assessments for two years following a successful appeal — but a subsequent completed revaluation terminates the freeze. That matters mostly for timing. If you win an appeal in a reval year, the reduced value holds for that year and the next two — unless the municipality completes another reval in that window, which is unlikely given typical 10-to-30-year reval cycles.
Under NJ law, your new assessment is presumed correct. The burden of proof to overturn that presumption sits on the homeowner. What wins an appeal, in order of weight:
Three to five recent sales of similar properties, closed within the 12 months preceding the October 1 valuation date, in the same neighborhood or, at minimum, the same municipality. Same property type, similar square footage, similar bedroom and bathroom count, similar lot characteristics, similar condition. The closer the match, the stronger the evidence. Filter out distressed sales — foreclosures, short sales, estate sales under time pressure — which are not considered fair market value indicators.
For higher-value properties — anything above $1 million, and often sensible for properties above $750,000 — a formal appraisal by a licensed NJ appraiser carries substantial weight with both the County Board and the Tax Court. Appraisals cost between several hundred and several thousand dollars depending on the property, but for an assessment gap large enough to justify the fee, they often prove decisive. The appraisal must be dated close to the October 1 valuation date to be fully probative.
If your card has errors — wrong square footage, wrong bathroom count, an addition that doesn't exist, a finished basement that isn't finished — those corrections are powerful because they're factual and uncontested once demonstrated. Pictures, measurements, and in some cases contractor estimates support these corrections.
For properties with significant deferred maintenance or functional obsolescence not captured during the field inspection, written contractor estimates for necessary work (roof replacement, foundation repair, electrical updates, HVAC) can justify condition-grade adjustments that move the valuation.
The assessments of neighbors' properties are not usable evidence — NJ law is explicit on this point. Nor are prior-year tax bills, subjective opinions about fairness, hardship arguments, or the fact that your taxes went up relative to last year. The County Board is evaluating whether your assessment reflects your property's October 1 market value. Anything that doesn't speak to that question doesn't help.
For context on how NJ property tax bills are assembled beyond the assessment itself — the levy, the rate, the three taxing authorities — see our Westfield property tax breakdown, which walks through the mechanics in a Union County market.
If the County Board of Taxation denies your appeal or awards a reduction you consider inadequate, you have 45 days from the date the Board's judgment was mailed to file a complaint with the NJ Tax Court. This is a separate court system dedicated to tax matters. The filing fee is $250. Cases are managed through the court's eCourts system. Properties assessed above $1,000,000 also have the option to file directly with the Tax Court from the outset, bypassing the County Board entirely.
| County Board of Taxation | NJ Tax Court | |
|---|---|---|
| Filing Fee | $5 – $150 | $250 |
| Timeline | 3–4 months to decision | 12–24 months to decision |
| Formality | Administrative hearing | Formal court, strict evidence rules |
| Attorney Needed? | Optional for residential | Strongly recommended |
| Direct Filing | All properties | Only if assessed over $1M |
The Tax Court is more formal than the County Board, with stricter rules of evidence and longer timelines — cases often take one to two years to resolve, though many settle before trial. The typical candidate for Tax Court escalation is a higher-value property where the County Board's decision left a meaningful tax gap — high enough in absolute dollars to justify the legal costs and time. Attorneys handling these cases typically charge 25% to 50% of first-year savings on a contingency basis, so the math is straightforward: if the potential reduction is large, escalation can be worthwhile; if it's small, it probably isn't.
For most residential homeowners, the County Board decision is the end of the road. Even a partial reduction produces tax savings that compound every year until the next reval, and the costs of Tax Court litigation often exceed the incremental gain. If the County Board reduced your assessment even modestly, take the win and file again in a future year if circumstances change.
For specific municipal timelines currently in effect, see our guides on the Verona 2026 revaluation, the New Providence 2027 revaluation, and the Berkeley Township 2027 revaluation.
Two signals. First, a certified letter or notice from a revaluation firm (Professional Property Appraisers or another contractor) arrived in your mail, typically in late fall or winter before the tax year in question. Second, the municipality or the County Board of Taxation will have published notice of the revaluation — often on the town website, in local news coverage, or at public meetings. Your municipal tax assessor's office can confirm directly. Revaluation years are material because the appeal deadline extends from April 1 to May 1, and because Chapter 123's common level range test does not apply.
For residential properties filed with the County Board of Taxation, no. You can represent yourself (pro se), and many homeowners successfully do. For commercial properties, LLCs, or any business entity, a licensed NJ attorney is required. At the NJ Tax Court level, an attorney is strongly recommended for all but the simplest cases — the rules of evidence are more formal, and municipal attorneys are on the other side. For higher-value properties where the potential tax reduction is material, retaining a tax appeal attorney on a contingency basis (typically 25–50% of first-year savings) is often cost-effective even at the County Board stage.
In theory, yes. The County Board of Taxation has authority to increase an assessment if the evidence shows the property is under-assessed, and the municipality can file a counterclaim seeking exactly that outcome. In practice, the risk is low for homeowners who file with solid comparable sales evidence that genuinely supports a lower value. The scenario where an appeal backfires is one where the homeowner files speculatively, without strong evidence, and the municipality demonstrates the property is actually worth more than the current assessment. If you've done the analysis and the evidence supports a reduction, the practical risk is minimal.
Refusing interior access is legally permitted but carries specific consequences that homeowners should understand before deciding. After a typical three attempts, the revaluation firm will estimate your interior based on exterior characteristics and neighborhood norms, and the estimate assumes your property is at the highest condition and finish level for its type — which usually produces a higher assessment than an actual inspection would. More importantly, most County Boards of Taxation treat refused inspections as a bar to appeal rights, because the basis for a formal appeal is a challenge to the valuation data, and refusing access prevents that data from being collected. In the vast majority of cases, allowing the walkthrough is the correct call.
Anthony leads Prodigy Real Estate across New York and New Jersey, with deep transaction experience in Union, Essex, Ocean, and Monmouth County markets where active revaluations are reshaping property tax math. Prodigy's hyperlocal coverage of New Providence, Verona, Berkeley Township, and dozens of other reval-affected municipalities gives buyers and sellers the data they need at the negotiating table.
*Filing deadlines, Chapter 123 common level range mechanics, Freeze Act provisions, filing fee structures, and Tax Court procedures are sourced from the New Jersey Division of Taxation, the New Jersey Association of County Tax Boards, individual County Board of Taxation publications (Union, Essex, Ocean, Monmouth, Burlington, Gloucester, Passaic, Bergen), the Tax Court of New Jersey, and N.J.S.A. 54:3-22, N.J.S.A. 54:4-2.25, and N.J.S.A. 54:4-2.26. This guide provides general information about NJ property tax revaluation appeals and is not legal advice. Individual property situations vary, and homeowners considering an appeal should consult with a licensed NJ attorney for advice specific to their circumstances.
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