20 WHITE BIRCH LN
Sparta, Sussex County · Block 35005, Lot 6
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 $160 ($7,264 → $7,424) using 2024→2025 rates (3.589 → 3.668) × assessed net.
Assessment net change: 0.0% ($202,400 → $202,400).
Assessment
| Land | $115,000 |
|---|---|
| Improvements | $87,400 |
| Net (taxable assessed, 2026) | $202,400 |
| Town avg ratio used | 59.82% (Average ratio (Director’s / Chapter 123)) |
| Implied equalized value | $338,348 |
| 2025 tax (MOD-IV billed) | $7,424.03 |
| Est. 2025 tax @ general rate | $7,424 |
| Mailing address (2026) | 427 GREEN RD, SPARTA; NJ, 07871 |
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 | $202,400 | — |
| 2025 | $202,400 | $7,424.03 |
| 2024 | $202,400 | $7,264.14 |
| 2023 | $202,400 | $7,055.66 |
Mailing changed in 2025 to 427 GREEN RD, SPARTA; NJ, 07871.
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 | $202,400 | 78.13% | $259,055 | — | — |
| 2024 | $202,400 | 70.81% | $285,835 | 0.0% | +10.3% |
| 2025 | $202,400 | 64.08% | $315,855 | 0.0% | +10.5% |
| 2026 | $202,400 | 59.82% | $338,348 | 0.0% | +7.1% |
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 | $202,400 | 3.486 | $7,056 | $7,055.66 | — |
| 2024 | $202,400 | 3.589 | $7,264 | $7,264.14 | +3.0% |
| 2025 | $202,400 | 3.668 | $7,424 | $7,424.03 | +2.2% |
| 2026 | $202,400 | — | — | — | — |
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 ($160): schools ≈ +54.4%, county ≈ +10.1%, municipal ≈ +35.4%.
| District school (2.362) | $4,781 |
|---|---|
| County (0.622) | $1,259 |
| County open space (0.003) | $6 |
| Municipal purpose (0.618) | $1,251 |
| Municipal open space (0.011) | $22 |
| Municipal library (0.052) | $105 |
Property details
| Class | 2 |
|---|---|
| Building class | 17 |
| Building | SPLIT LEVEL |
| Land description | 100X174 |
| Dwellings | 1 |
| Commercial units | — |
| Year built | 1960 |
| Acreage | 0.3994 |
| Zoning | R-2 |
| Tax map page | 3502 |
| Additional lots | — |
| Census tract / block | — |
| Special tax codes | — |
| MOD-IV current-year tax | — |
| Last sale | $332,875 · 2/15/2023 · sale assessment $202,400 |
| Deed book / page | 10232 / 00624 |
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.