Pennsylvania & Delaware

Your Property Tax Bill May Be Wrong. We'll Prove It.

Centrivant files professional assessment appeals on your behalf — no upfront cost, no commitment. Most appeals resolve without any hearing. You only pay when we win — and future years of savings are 100% yours.

Start Your Free Assessment

We typically respond to every inquiry within one business day.

Centrivant is not a law firm and does not provide legal advice.

$40B+
Overpaid in property taxes by US homeowners every year
78%
Of homeowners have never filed a single appeal
$800–$1,500
Average annual savings in a successful appeal
$0
Cost if we don't win. Future years of savings? 100% yours, every year.
⚑ PA Deadline Alert

Pennsylvania filing window is open now and closes August 1, 2026 — don't miss this year's opportunity.

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How It Works

Three Steps. No Upfront Cost.

01

Submit Your Property Details

Fill out our 2-minute intake form. We'll review your current assessment, run a comparable sales analysis, and determine whether your property is over-assessed.

02

We Prepare & File Your Appeal

If we find grounds for an appeal, we prepare a professional evidence packet and file with your county's Board of Assessment on your behalf. Most cases resolve without any hearing required from you.

03

You Save. We Earn Our Fee.

When your assessment is reduced, we collect 25% of your first year's savings (minimum $100). Every dollar saved in future years is 100% yours. If the appeal doesn't succeed, you owe nothing.

Why Centrivant

Professional Appeals. No Complexity.

Most homeowners don't appeal because the process feels opaque and intimidating. We handle everything — the research, the paperwork, the filing — so you don't have to.



Get Your Free Assessment

Evidence-Based Filings

Every appeal is built on comparable sales data, property record analysis, and documented grounds — not guesswork.

Written Appeals Only

We handle the initial-level appeal entirely in writing. Most cases resolve without any hearing — and we'll tell you upfront if yours looks different.

Contingency Only

Our fee is 25% of your first year's tax savings (minimum $100) — collected only when you win. You keep 100% of all future years' savings, every year.

Free Viability Check

Before we do anything, we determine whether your case has merit. If it doesn't, we'll tell you honestly.

It Takes 2 Minutes to Submit. We'll Do the Rest.

Free viability check. No commitment. No cost unless we win.

Start Your Free Assessment →
The Long-Term Picture

We take 25% of year one.
You keep 100% of every year after that.

A successful appeal reduces your assessed value permanently — or until the county reassesses. Most homeowners see continued savings for 5 to 10+ years. Our fee applies only to year one. Every dollar saved in year two, year five, year ten belongs entirely to you.

Year 1
75%
of savings go to you after our fee
Year 2+
100%
of savings are yours, every year
No Win
$0
owed to Centrivant, ever
Start Your Free Assessment
1

Submit Your Property

Complete the 2-minute intake form. We review at no cost or commitment.

2

We Analyze & File

We build the evidence packet and file your appeal with the county — handled entirely in writing.

3

You Save or Pay Nothing

If the appeal succeeds, we invoice 25% of your first-year savings. If not, you owe nothing.

Full process detail below ↓

Process

How Centrivant Works

From your first inquiry to a reduced tax bill — here's exactly what happens at every step.

1

You Submit Your Property Details

Complete our short intake form — it takes about five minutes. We'll ask for your property address, county, current assessed value (found on your tax bill or county assessor's website), and basic property characteristics. That's all we need to get started.

2

We Run a Free Viability Analysis

We review your assessment against current comparable sales data, check your property record card for errors, and apply the county's Common Level Ratio (in Pennsylvania) to determine whether your property is over-assessed. If we find grounds for an appeal, we reach out to discuss next steps. If we don't, we'll tell you honestly — no strings attached.

3

You Sign Two Simple Documents

If we proceed, you sign a Contingency Fee Service Agreement (our contract with you) and an Agent Authorization Form (which authorizes Centrivant to file with your county). Both are straightforward one-to-two page documents. We handle the rest.

4

We Prepare & File Your Evidence Packet

We build a professional evidence packet: a written brief, a comparable sales analysis, and supporting documentation. We file the appeal with your county's Board of Assessment on your behalf, by certified mail, well ahead of the deadline. You receive confirmation when filed.

5

The County Reviews Your Case

The assessor reviews our submission. In many cases — particularly in Pennsylvania — the assessor will offer a stipulated settlement (a negotiated reduction) before any formal hearing is scheduled. This is the most common outcome and requires nothing further from you.

6

You Save. We Invoice.

Once the county confirms your reduced assessment in writing, we calculate your annual tax savings and invoice our contingency fee — 25% of your first year's savings, minimum $100. All savings in future years belong entirely to you. If your assessment is not reduced, you owe nothing.

A Note on Scope

Centrivant's services cover the initial-level assessment appeal only — preparation, filing, and written submission. We do not attend formal hearings or represent clients in judicial proceedings. If you choose to escalate beyond the initial level, that falls outside our scope. In practice, the large majority of successful appeals resolve at the initial level without any hearing.



What You Do vs. What We Do

You Centrivant
Fill out the 2-minute intake formAnalyze your assessment and run comparables
Sign the service agreement and agent authorizationReview your property record card for errors
Provide any requested property informationPrepare the full evidence packet
Notify us of any county correspondence receivedFile the appeal with the county by deadline
Pay 25% of first-year savings (min. $100) if we win — 100% of future years' savings are yoursManage communication with the assessor's office
Nothing, if we don't winInform you of the outcome and next options


Start Your Free Assessment →
Why Centrivant

What professional appeals do that DIY filings don't.

Filing a property tax appeal is a legal right — and the forms are public. But a successful appeal requires specific expertise, data access, and procedural knowledge that most homeowners don't have on hand.

01

MLS-Level Comparable Sales Data

We access the MLS through licensed real estate professionals — the same database agents use. County boards routinely dismiss Zillow and Redfin estimates. MLS comps carry real evidentiary weight in a written appeal.

02

The CLR Calculation Is Non-Obvious

Pennsylvania's Common Level Ratio determines whether your assessment is legally defensible. Applying it incorrectly doesn't just lose the appeal — it can expose you to a counter-assessment that raises your bill. We apply it correctly, every time.

03

Comparable Selection Is a Skill

Not every recent sale helps your case. Distressed sales, non-arms-length transactions, and statistical outliers can weaken an appeal if included. Knowing which comparables to use — and which to exclude — is a judgment that comes from handling many cases.

04

Boards Recognize Professional Filings

A properly structured evidence packet — with correct methodology, county-specific formatting, and clear legal framing — reads very differently to a Board of Assessment than a homeowner's printout. Presentation matters in a written process.

05

Pattern Recognition Across Many Appeals

We track how boards across Pennsylvania are processing appeals in real time — which arguments are landing, which aren't, and how assessors are responding to current market data. A first-time filer doesn't have that context. We do.

06

Zero Cost to Find Out

DIY means hours of your time — plus the risk of a procedural error that ends the appeal before it starts. Trying Centrivant costs 2 minutes on an intake form. We tell you honestly whether we think you have a case. If not, you walk away owing nothing.

Start Your Free Assessment

Centrivant is not a law firm and does not provide legal advice.

Service Area

Where We Work

Serving residential homeowners across all of Pennsylvania and all three Delaware counties. The initial-level written appeal process is consistent statewide.

Chester County
PA
2026 DeadlineAugust 1, 2026 ⚑
Filing WindowOpen Now
Filing MethodMail or in-person
Filing Fee$25 per parcel
Assessment BasisBase year (CLR applies)
Delaware County
PA
2026 DeadlineAugust 1, 2026 ⚑
Filing WindowOpen Now
Filing MethodMail only
Filing FeeFree
NoteHighest rate in PA
Montgomery County
PA
2026 DeadlineAugust 1, 2026 ⚑
Filing WindowOpen Now
Filing MethodOnline, mail, or in-person
Filing FeeFree
Assessment BasisBase year (CLR applies)
New Castle County
DE
2027 Deadline~March 31, 2027
Filing WindowOpens early 2027
Filing MethodOnline or mail
Filing FeeFree
NoteFirst reassessment since 1983
Kent County
DE
2027 DeadlineBefore April 1, 2027
Filing WindowOpens early 2027
Filing MethodAssessment office
Filing FeeFree
NoteAssessor review prior to hearing
Sussex County
DE
2027 Deadline~March 15, 2027 — 4:30 PM
Filing WindowOpens January 2027
Filing MethodEmail or hand delivery only
PostmarksNOT accepted
Assessment BaseFMV as of June 30, 2023

Not Seeing Your County?

We're actively expanding. If your county isn't listed, submit your property details through our intake form and we'll let you know as soon as your area is available — or refer you to the right resources in the meantime.



Start Your Free Assessment →
Free Assessment

Start Your Free Assessment

Tell us about your property and we'll determine whether you have grounds for an appeal — at no cost and no commitment.

Free Viability Check

Complete the form below. We'll review your property details, run our viability analysis, and reach out if there are grounds for an appeal. No cost unless we win your case.

Your Contact Information
Property Details
Assessment Information

Find this on your annual property tax bill or your county assessor's website.

Above-grade finished area only. Check your tax bill or online listing.

Final Questions

Your information is kept strictly confidential and used only for the purposes of evaluating your appeal. We do not sell or share your data. See our Privacy Policy.

✓ Received — Thank You

We've received your property details and will be in touch after completing our viability review. We typically respond within one business day. You'll hear from us at the email address you provided.

In the meantime, feel free to review our FAQ or learn more about our process.

Questions

Frequently Asked Questions

Everything you need to know about the assessment appeal process and how Centrivant works.

Centrivant works on a contingency fee basis — we charge 25% of your first year's tax savings (minimum $100), collected only if your assessment is successfully reduced. Importantly, the reduced assessment carries forward — you receive 100% of every future year's tax savings, with no further fee to Centrivant. If your appeal does not result in a reduction, you owe nothing. There are no upfront fees, no retainers, and no hidden charges. This rate is confirmed in your service agreement before we begin any work.

No. Centrivant handles the initial-level appeal as a written submission. In most cases, the county assessor reviews our evidence packet and either reduces the assessment or offers a negotiated settlement — without any formal hearing. If you choose to escalate beyond the initial level, that falls outside our scope, but we'll make sure you're fully informed of your options.

The most common indicators are: comparable homes in your neighborhood have sold for less than your assessment implies; your property has condition issues (deferred maintenance, damage) not reflected in the assessment; or your property record card contains errors (wrong square footage, incorrect room count). In Pennsylvania, we also apply the county's Common Level Ratio to determine whether your assessment ratio exceeds the legal threshold. Submit your details and we'll run this analysis for free.

Once you engage us, we typically prepare and file within one to two weeks. After filing, the county's informal review process generally takes 30 to 90 days. If a settlement is offered, resolution can be faster. From start to finish, most cases resolve within 60 to 120 days of filing.

Pennsylvania uses a base-year assessment system — your assessed value is pegged to market values from a specific historical year, not updated annually. The Common Level Ratio (CLR) is published each year by the State Tax Equalization Board and tells you what percentage of current market value your county is assessing at. If your property's assessment ratio exceeds the CLR by more than 15%, Pennsylvania law entitles you to a reduction — independent of the market value argument. This is one of the most powerful grounds for appeal in PA and one we analyze on every case.

If the county does not reduce your assessment, you owe Centrivant nothing. We'll notify you promptly of the outcome and provide information about your right to escalate to a formal hearing if you choose to do so independently. Denial at the initial level is not the end of the road — you retain all your rights to appeal further.

In rare cases, a county can cross-appeal and attempt to increase your assessment if they believe it is below market value. This is uncommon at the residential level and Centrivant will only recommend filing when our analysis shows clear grounds for reduction. We would not file a case where this risk appears material. We recommend discussing this question with a local attorney if you have specific concerns about a particular property.

We currently serve counties across Pennsylvania in Pennsylvania, and New Castle, Kent, and Sussex counties in Delaware. Pennsylvania's filing window is open now through August 1, 2026. Delaware's next filing windows open in early 2027 — Kent and New Castle by April 1, Sussex County by March 15. We're actively expanding — if your county isn't listed, submit your details and we'll notify you when your area is available.

For counties across Pennsylvania, the 2026 appeal deadline is August 1, 2026. This window is open right now. If you miss this deadline, the next opportunity will be in 2027. We strongly recommend starting the process now — preparation takes time and the deadline is firm.

At this time we focus exclusively on residential properties. Commercial property appeals involve a more complex process and higher evidence standards. If you have a commercial property, contact us and we'll do our best to point you toward appropriate resources.

Get In Touch

Contact Centrivant

Questions about the process or your specific situation? We're here to help.

We'd love to hear from you.

Whether you have questions about the appeal process, want to know if your county qualifies, or just want to talk through your situation before committing — reach out. We typically respond within one business day.

Phone
We respond to every inquiry.


Centrivant LLC is not a law firm and does not provide legal advice. For questions requiring legal guidance, we recommend consulting a licensed attorney in your state.

Precision.  Clarity.  Forward Thinking.

Pennsylvania — Statewide
All 67 Counties
2026 Deadline
Filing DeadlineAugust 1, 2026 (most counties) · October for Philadelphia · March 31 for Allegheny
Filing MethodWritten — no hearing required from you in most counties
Assessment BasisBase year with annual Common Level Ratio (CLR) applied
Notable MarketsPhiladelphia suburbs · Lehigh Valley · Pittsburgh (Allegheny) · Lancaster · York · Berks
New Castle County
DE
2027 DeadlineMarch 15, 2027
Filing MethodOnline or mail
Filing FeeFree
Kent County
DE
2027 DeadlineApril 2027
Filing MethodMail or in-person
Filing FeeFree
Sussex County
DE
2027 Deadline~March 15, 2027
Filing MethodEmail or hand delivery only
NoteNo postmarks accepted
How It Works

Three Steps. No Upfront Cost.

01

Submit Your Property Details

Fill out our 2-minute intake form. We'll review your current assessment, run a comparable sales analysis, and determine whether your property is over-assessed.

02

We Prepare & File Your Appeal

If we find grounds for an appeal, we prepare a professional evidence packet and file with your county's Board of Assessment on your behalf. Most cases resolve without any hearing required from you.

03

You Save. We Earn Our Fee.

When your assessment is reduced, we collect 25% of your first year's savings (minimum $100). Every dollar saved in future years is 100% yours. If the appeal doesn't succeed, you owe nothing.

Why Centrivant

Professional Appeals. No Complexity.

Most homeowners don't appeal because the process feels opaque and intimidating. We handle everything — the research, the paperwork, the filing — so you don't have to.



Get Your Free Assessment

Evidence-Based Filings

Every appeal is built on comparable sales data, property record analysis, and documented grounds — not guesswork.

Written Appeals Only

We handle the initial-level appeal entirely in writing. Most cases resolve without any hearing — and we'll tell you upfront if yours looks different.

Contingency Only

Our fee is 25% of your first year's tax savings (minimum $100) — collected only when you win. You keep 100% of all future years' savings, every year.

Free Viability Check

Before we do anything, we determine whether your case has merit. If it doesn't, we'll tell you honestly.

It Takes 2 Minutes to Submit. We'll Do the Rest.

Free viability check. No commitment. No cost unless we win.

Start Your Free Assessment →