How often does your assessor reset your property's value to reflect the market? Reassessment cycles vary dramatically across states — from annual everywhere (Texas) to acquisition-only (California) to municipality-by-municipality variation (NJ, NY). Understanding your cycle is critical for timing appeals.
| State | General reassessment cycle | Mid-cycle triggers | Key annual mechanism |
|---|---|---|---|
| Texas | Annual — every parcel every year | Supplemental (mid-year ownership/construction); escape (back-tax) | 10% Homestead Cap on owner-occupied |
| California | Acquisition-only — at change of ownership or new construction | Supplemental, escape, Prop 8 decline-in-value | ≤2% factored increase per year (Prop 13) |
| Illinois | 4-year quadrennial (most counties); triennial-by-district (Cook) | New construction, demolition, factual errors, post-PTAB §16-185 rollover | Township equalization + state multiplier |
| New Jersey | Varies by municipality — annual revaluation in some, periodic in others | Added Assessment Roll, omitted assessments | Director's Ratio + Chapter 123 Common Level Range |
| New York | Varies by jurisdiction — annual in some localities, multi-year in others | Mid-year improvements, omitted assessments | ORPTS equalization rate + tax cap (RPTL §3601) |
| Florida | Annual reassessment (Jan 1 lien) | New construction, additions, demolition, change of qualifying status | Save Our Homes 3%/CPI cap on homestead assessed value (FL Stat. §193.155); 10% non-homestead cap (§193.1554/.1555) |
| Massachusetts | Annual revaluation (Mass. Gen. Laws Ch. 59 §38); DOR triennial certification of methodology | New construction, demolition, sub-divisions | Prop 2½ aggregate cap on total municipal levy growth (M.G.L. Ch. 59 §21C) |
| Connecticut | Every 5 years (decennial-or-extended; Conn. Gen. Stat. §12-62) | New construction, demolition, factual error correction | Mill rate set annually by municipality; assessed value locked between revals |
| Pennsylvania | County-set (annual to multi-decade) — Allegheny 2012, Phila annual, others vary | New construction, demolition, factual error, board-ordered countywide reval | Common Level Ratio (CLR) published annually by STEB to reflect cumulative drift |
| Ohio | Sexennial (6-year) + triennial update (3-year) | New construction, demolition, factual error correction, omitted property | Automatic 10% Reduction Factor + 2.5% Rollback for owner-occupied (ORC 319.301-302) |
| Georgia | Annual updates (no statutory cycle) | New construction, demolition, factual error correction | County BTA updates FMV annually based on sales data (O.C.G.A. §48-5-302); HB 92 (2024) eliminated freeze-on-filing |
| North Carolina | Octennial 8-year (G.S. 105-286); major counties advanced to 4-yr | Physical change, demolition, factual error correction, omitted property (G.S. 105-287); change of ownership does NOT trigger | NCDOR sales-ratio monitoring (G.S. 105-289) — counties out of 0.85-1.15 band must advance reval if pop ≥75K |
Every CAD reappraises every parcel every year. Notice of Appraised Value is mailed by April 1 typical. The protest deadline is May 15 (or 30 days from notice, whichever is later). Mid-cycle:
Escape assessments under §25.21 for property missed in prior years (up to 4-5 years lookback)
§25.25(c) corrections for clerical/factual errors (5-year lookback)
Annual mechanism: the 10% Homestead Cap limits year-over-year increases on owner-occupied homestead-exempt residences.
California (under Prop 13, 1978) reassesses property only at:
Otherwise, assessed value rises by no more than 2% per year (factored base year value). This is fundamentally different from every other state in our coverage.
Mid-cycle:
Escape assessments for prior-year corrections
Prop 8 decline-in-value reviews annually if market value falls below factored base year value
Practical implication: long-tenured CA owners pay tax on values far below market. Recent buyers face current market value as their base year.
Most IL counties operate on a 4-year general reassessment cycle — every parcel reassessed simultaneously in the cycle year. DuPage's last cycle was 2023; next is 2027. Other collar counties follow similar staggered cycles.
Cook County is the exception: triennial-by-district. The Cook County Assessor reassesses one of three districts each year (City of Chicago, North Suburbs, South & Southwest Suburbs) on a rotating basis.
Mid-cycle individual reassessments occur for:
Demolition or removal
Factual record corrections
Annual mechanisms: township equalization factors (within-county ratio adjustments) + state equalization multiplier (cross-county ratio adjustment to bring assessed values into alignment with the statutory 33⅓% ratio).
NJ has no statewide reassessment cycle. Each of NJ's 564 municipalities decides whether to revalue annually (some Hudson and Bergen municipalities do), on a multi-year cycle, or only when ordered by the Director of Taxation under N.J.S.A. 54:1-26 (typically when the Director's Ratio falls below 85%).
Practical reality: roughly half of NJ municipalities reassess annually; others on 2-6 year cycles; some have not done a comprehensive revaluation in 20+ years.
Annual mechanisms:
Common Level Range ±15% of Director's Ratio — the procedural lever for unequal-assessment claims via Chapter 123
Added Assessment Roll for mid-year improvements
NY has no statewide reassessment cycle. The state strongly encourages annual reassessment under RPTL §305 (uniform percentage of value standard), but enforcement is limited.
Practical reality:
Others on 2-6 year cycles
Some have not done comprehensive reassessment in decades — producing significant equalization-rate drift
Mid-cycle individual reassessments:
Demolition or removal
Factual record corrections
Annual mechanisms:
Every Florida property is reassessed January 1 of each tax year by the elected county Property Appraiser (FL Stat. §193.023). Physical inspection at least once every five years.
The two-rolls structure:
Just value roll — Property Appraiser's annual estimate of full market value
Assessed value roll — just value reduced by the Save Our Homes 3%/CPI cap (FL Stat. §193.155) for homesteads, or the 10% non-homestead cap (§193.1554, §193.1555) for non-homesteads
2026 Save Our Homes cap = 2.7% (CPI-driven, since CPI < 3%). Long-tenured homesteads accumulate significant SOH cushion (just value materially above assessed value), creating the two-rolls reality where market-value appeals don't always reduce the tax bill.
Portability (§193.155(8)): up to $500K of accumulated SOH savings transfers to a new FL homestead within 3 tax years.
Annual revaluation by each of the 351 municipal Boards of Assessors. Every three years, DOR Bureau of Local Assessment conducts triennial certification review to confirm values reflect full and fair cash value (Mass. Gen. Laws Ch. 59 §38). Lien date is January 1 of the year preceding the fiscal year (FY 2026 = Jan 1, 2025).
The cycle isn't strictly "every 3 years for the homeowner" — assessed values update annually. The triennial milestone is a state-level audit; failure to certify can produce DOR-ordered revaluation under Mass. Gen. Laws Ch. 58A §14.
Conn. Gen. Stat. §12-62 requires each of the 169 municipalities to conduct a revaluation every five years (which may be a full physical revaluation or a statistical revaluation, depending on the municipality's implementation choice). Some municipalities run on extended cycles via legislative-act delays (occasionally 6-7 years). October 1 lien date.
Revaluation years drive elevated BAA filing volume the following winter. Petitioners should expect material year-of-revaluation movement and watch for §12-117a Superior Court windows + §12-119 wrongful-assessment fail-safe.
PA has the most fragmented reassessment landscape in the launch states. Philadelphia runs annual reassessments via the Office of Property Assessment (OPA). Bucks County completed a 2020 reassessment; Delaware County 2021; Lancaster 2018; York 2017. Allegheny County has not conducted a county-wide reassessment since 2013 (2012 base year). Berks County base year is 1994. Westmoreland County base year is 1972.
The hidden lever: in stale-reassessment counties, the Common Level Ratio (STEB-published annually) drifts materially below the predetermined ratio. Allegheny's 2026 CLR is 50.1% — meaning successful appellants substitute CLR in the assessment math under 53 Pa.C.S.A. §8854, often producing ~50% reductions even on uncontested fair-market values.
Each of Ohio's 88 counties is on a 6-year sexennial reappraisal cycle (full field-inspection-based revaluation, ORC 5715.33) with a 3-year triennial update (statistical adjustment without field inspection, ORC 5715.34) between sexennials. The 88 counties are on staggered cycles coordinated by the Tax Commissioner.
Key cycle dates (verified):
Cuyahoga County — 2024 sexennial reappraisal completed
Franklin County (Columbus) — 2023 sexennial; 2026 triennial update
Hamilton County (Cincinnati) — 2023 sexennial; 2026 triennial update
Summit County (Akron) — 2026 sexennial reappraisal year
BOR filing volume typically spikes 5-10× the year following a sexennial or triennial.
North Carolina counties must reappraise real property at least every 8 years under G.S. 105-286 — historically the longest statutory reappraisal cycle in the U.S. The 100 counties were originally grouped into four octennial divisions (1972, 1973, 1974, 1975), with each division's reappraisal year offset by one year so reappraisal volume distributes across the calendar.
Most large counties have voluntarily advanced to 4-year cycles by Board resolution: Mecklenburg (2023→2027), Wake (2024→2028), Guilford (2022→2026), Forsyth (2025→2029), Cabarrus (2024→2028), Buncombe (2025→2029), Durham (2025→2029), New Hanover, Cumberland, Union. Smaller counties remain on 8-year cycles.
Mid-cycle individual reassessment is limited to specific triggers in G.S. 105-287: physical improvement, demolition, fire damage, factual error correction, or omitted-property addition. Change of ownership does not trigger reassessment in NC (unlike CA Prop 13). A higher-priced post-reval sale does not bump your assessment until the next general reval cycle.
Annual mechanism between reappraisals: NCDOR sales-assessment ratio monitoring under G.S. 105-289. Counties with population ≥75,000 are mandatorily required to advance their reappraisal if the ratio drops below 0.85 or rises above 1.15 — meaning the schedule has drifted more than 15% from market.
The 2024 reval cohort included 21 counties (Wake, Cabarrus, Carteret, Edgecombe, Franklin, Granville, Halifax, Hyde, Madison, Nash, Perquimans, Pitt, Richmond, Robeson, Rockingham, Sampson, Vance, Wilson, Yancey, Caswell, Duplin) — Wake reported 53% residential / 45% commercial average increase, the largest single-county movement in years.
Georgia has no statutorily-mandated multi-year reassessment cycle. County Boards of Tax Assessors update FMV annually based on sales data and market trends (O.C.G.A. §48-5-302). Notice of Assessment is the trigger document, mailed annually in May-July; the 45-day appeal window runs from mailing.
HB 92 (2024) materially shifted appeal economics: pre-2024, simply filing an appeal froze the assessed value at the prior year's level pending decision. Post-HB 92 (effective for 2025+ tax years), the freeze applies only when the taxpayer wins a value reduction. Speculative-filing strategy that worked pre-2024 is gone.
CA: appeal at acquisition (supplemental within 60 days), then for declines (Prop 8 annual reviews)
IL: target the general reassessment year if assessment increases substantially; PTAB rollover protects subsequent years for owner-occupied
NJ: annual revaluation municipalities have annual appeal opportunities; periodic-revaluation municipalities present Chapter 123 leverage as the ratio drifts
NY: localities with stale revaluations often have unequal-assessment cases worth investigating against the current equalization rate
CA: Prop 8 reduction reviewed annually; persists until market recovers to factored base year value
IL: §16-185 rollover for owner-occupied PTAB wins — carries forward through general assessment period
NJ: §54:3-26 freezes CBT judgments for 2 succeeding years
NY: no multi-year freeze; each year independent
Time appeals to maximize carry-forward — IL's §16-185 rollover means a year-1 PTAB win produces multi-year savings for owner-occupied homes
Watch for revaluation years — these are when assessment increases tend to be largest, and when appeals tend to be most numerous (and most successful for properties appreciated less than the average revaluation increase)
Track Director's Ratio drift in NJ — the Chapter 123 leverage grows as the ratio falls
Track equalization rate drift in NY — same dynamic; long-stale-revaluation localities produce more unequal-assessment opportunities
The Property Tax Desk Editorial Team