9 BIG SPRING RD
Tewksbury, Hunterdon County · Block 6.1, Lot 24.15
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 up $463 ($12,487 → $12,950) using 2024→2025 rates (2.429 → 2.519) × assessed net.
Assessment net change: 0.0% ($514,100 → $514,100).
Assessment
| Land | $145,000 |
|---|---|
| Improvements | $369,100 |
| Net (taxable assessed, 2026) | $514,100 |
| Town avg ratio used | 74.02% (Average ratio (Director’s / Chapter 123)) |
| Implied equalized value | $694,542 |
| 2025 tax (MOD-IV billed) | $12,950.18 |
| Est. 2025 tax @ general rate | $12,950 |
| Mailing address (2026) | 9 BIG SPRING ROAD, CALIFON NJ, 07830 |
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 | $514,100 | — |
| 2025 | $514,100 | $12,950.18 |
| 2024 | $514,100 | $12,487.49 |
| 2023 | $514,100 | $12,143.04 |
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 | $514,100 | 88.23% | $582,682 | — | — |
| 2024 | $514,100 | 82.70% | $621,644 | 0.0% | +6.7% |
| 2025 | $514,100 | 78.47% | $655,155 | 0.0% | +5.4% |
| 2026 | $514,100 | 74.02% | $694,542 | 0.0% | +6.0% |
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 | $514,100 | 2.362 | $12,143 | $12,143.04 | — |
| 2024 | $514,100 | 2.429 | $12,487 | $12,487.49 | +2.8% |
| 2025 | $514,100 | 2.519 | $12,950 | $12,950.18 | +3.7% |
| 2026 | $514,100 | — | — | — | — |
Where your money goes
Component $ = net × (component rate ÷ 100). Percents are share of school + county + municipal components for rate year 2025.
Of the estimated change ($463): schools ≈ +46.7%, county ≈ +23.3%, municipal ≈ +30.0%.
| District school (0.927) | $4,766 |
|---|---|
| Regional / consolidated school (0.648) | $3,331 |
| County (0.391) | $2,010 |
| County library (0.040) | $206 |
| County open space (0.038) | $195 |
| Municipal purpose (0.425) | $2,185 |
| Municipal open space (0.050) | $257 |
Property details
| Class | 2 |
|---|---|
| Building class | 17 |
| Building | 1.5SF |
| Land description | 1.501 ACRES |
| Dwellings | 1 |
| Commercial units | — |
| Year built | 1970 |
| Acreage | 1.501 |
| Zoning | HL |
| Tax map page | 4 |
| Additional lots | — |
| Census tract / block | — |
| Special tax codes | — |
| MOD-IV current-year tax | — |
| Last sale | $554,000 · 3/8/2013 · sale assessment $470,700 |
| Deed book / page | 02305 / 00173 |
See this lot on the statewide map, then come back for the full tax story.
Show on mapSources: 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.