498 UNION AVE
Middlesex, Middlesex County · Block 175, Lot 1
2026 revaluation/reassessment town — 2026 general tax rate not in our warehouse yet. Showing 2025 rate against 2026 assessments; YoY % is withheld until the matching rate posts.
Estimated annual tax: current net × 2.120 (rate year 2025). Year-over-year % is hidden until the 2026 general rate is available for this reval/reassess town.
Assessment net change: 0.0% ($552,000 → $552,000).
Assessment
| Land | $300,000 |
|---|---|
| Improvements | $252,000 |
| Net (taxable assessed, 2026) | $552,000 |
| Town avg ratio used | 100.00% (Revaluation year (~100% of market)) |
| Implied equalized value | $552,000 |
| 2025 tax (MOD-IV billed) | $11,702.40 |
| Est. 2025 tax @ general rate | $11,702 |
| Mailing address (2026) | 498 UNION AVE, MIDDLESEX; NJ, 08846 |
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.
This town revalued/reassessed for tax year 2026. New assessments are set near true market value, so we treat the ratio as ~100% for this year. Published Chapter 123 average ratio for appeals/statistics is still 97.52% (often still reflecting the prior assessment base).
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 | $552,000 | — |
| 2025 | $552,000 | $11,702.40 |
| 2024 | $496,800 | $11,495.95 |
| 2023 | $496,800 | $10,944.50 |
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 | $496,800 | 23.62% | $2,103,302 | — | — |
| 2024 | $496,800 | 99.39% | $499,849 | 0.0% | -76.2% |
| 2025 | $552,000 | 94.17% | $586,174 | +11.1% | +17.3% |
| 2026 | $552,000 | 100.00% | $552,000 | 0.0% | -5.8% |
2026: This town revalued/reassessed for tax year 2026. New assessments are set near true market value, so we treat the ratio as ~100% for this year. Published Chapter 123 average ratio for appeals/statistics is still 97.52% (often still reflecting the prior assessment base).
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 | $496,800 | 2.203 | $10,945 | $10,944.50 | — |
| 2024 | $496,800 | 2.314 | $11,496 | $11,495.95 | +5.0% |
| 2025 | $552,000 | 2.120 | $11,702 | $11,702.40 | +1.8% |
| 2026 | $552,000 | — | — | — | pending rate |
Where your money goes
Component $ = net × (component rate ÷ 100). Percents are share of school + county + municipal components for rate year 2025.
| District school (1.138) | $6,282 |
|---|---|
| County (0.310) | $1,711 |
| County open space (0.029) | $160 |
| Municipal purpose (0.611) | $3,373 |
| Municipal library (0.032) | $177 |
Property details
| Class | 4A |
|---|---|
| Building class | 10 |
| Building | 1SF OFFICE |
| Land description | 104.5X144.8 |
| Dwellings | 1 |
| Commercial units | — |
| Year built | 1973 |
| Acreage | 0.3474 |
| Zoning | RT |
| Tax map page | — |
| Additional lots | 2-4 |
| Census tract / block | — |
| Special tax codes | — |
| MOD-IV current-year tax | — |
| Last sale | $300,000 · 5/7/1997 · sale assessment $168,100 |
| Deed book / page | 04414 / 00504 |
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.