40 RIVER RD

Byram, Sussex County · Block 4, Lot 887

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Assessment year 2026 · Rate year 2025 · Prior rate 2024

Assessments are tax year 2026; latest published general rate we have is 2025. Estimate uses that rate until the 2026 rate is loaded.

Estimated tax story (homeowner view)
+4.9%

Estimated tax up $642 ($13,014 → $13,657) using 2024→2025 rates (3.830 → 4.019) × assessed net.

Assessment net change: 0.0% ($339,800 → $339,800).

Assessment

Land$108,600
Improvements$231,200
Net (taxable assessed, 2026)$339,800
Town avg ratio used58.12% (Average ratio (Director’s / Chapter 123))
Implied equalized value$584,652
2025 tax (MOD-IV billed)$13,656.56
Est. 2025 tax @ general rate$13,657
Mailing address (2026)PO BOX 196, STANHOPE; NJ, 07874

How the ratio works: New Jersey towns often assess below full market value. The average ratio (Director’s / Chapter 123) estimates what percent of true market value the town’s assessments represent. Implied equalized value ≈ assessed net ÷ (ratio ÷ 100). Example: assessed $187,600 at 55.89% ≈ $335,700 equalized. Tax bills still use assessed value × the general tax rate — not the equalized figure.

Year-by-year assessed value & tax

From NJ MOD-IV files (2023, 2024, 2025, 2026). Tax is the MOD-IV billed amount when present; otherwise —. Current mailing is in Assessment above.

Year Assessed net Tax
2026 $339,800
2025 $339,800 $13,656.56
2024 $339,800 $13,014.34
2023 $339,800 $12,783.28

Assessed value & ratio history

Parcel assessed nets come from MOD-IV year files (2023, 2024, 2025, 2026). Town average ratios are from Abstract / Chapter 123 when available — implied equalized = assessed ÷ (ratio ÷ 100).

Tax year Assessed net Avg ratio Implied equalized Assessed Δ Equalized Δ
2023 $339,800 78.30% $433,972
2024 $339,800 72.00% $471,944 0.0% +8.7%
2025 $339,800 64.13% $529,861 0.0% +12.3%
2026 $339,800 58.12% $584,652 0.0% +10.3%

Tax year history

Assessed net is from that year’s MOD-IV file. Est. tax = assessed × that year’s general rate when we have the rate sheet. Billed tax is the MOD-IV tax field when present (often empty for the newest file year).

Tax year Assessment net General rate Est. tax (that year) Billed tax Est. vs prior
2023 $339,800 3.762 $12,783 $12,783.28
2024 $339,800 3.830 $13,014 $13,014.34 +1.8%
2025 $339,800 4.019 $13,657 $13,656.56 +4.9%
2026 $339,800

Where your money goes

Component $ = net × (component rate ÷ 100). Percents are share of school + county + municipal components for rate year 2025.

Schools
$7,860 57.6%
County
$2,294 16.8%
Municipal
$3,503 25.7%

Of the estimated change ($642): schools ≈ +75.1%, county ≈ +10.6%, municipal ≈ +14.3%.

District school (1.510)$5,131
Regional / consolidated school (0.803)$2,729
County (0.621)$2,110
County library (0.051)$173
County open space (0.003)$10
Municipal purpose (1.020)$3,466
Municipal open space (0.011)$37

Property details

Class2
Building class17
Building1SF
Land description.373 AC
Dwellings1
Commercial units
Year built2010
Acreage0.373
ZoningR-5
Tax map page5.03
Additional lots
Census tract / block
Special tax codes
MOD-IV current-year tax
Last sale
Deed book / page

See this lot on the statewide map, then come back for the full tax story.

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Sources: NJ Division of Taxation MOD-IV (current parcel file) and tax rates for 2025 (Abstract of Ratables). Estimates are not an official tax bill. Owner names are not shown. Full disclaimer.