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2025 general tax rate · Warren County, NJ
Alpha property tax rate
Alpha's 2025 general tax rate is $3.485 per $100 of assessed value. A property assessed at $300,000 owes $10,455.00 for the year. That ranks 176th highest of New Jersey's 564 municipalities, above the middle, $0.520 per $100 above the $2.960 per $100 state median.
- 1General tax rate $3.485 per $100
- 2Bill on $300,000 assessed $10,455.00
Your Alpha tax bill
The bill before exemptions and credits. Compare every New Jersey rate.
General rate and effective rate in Alpha
New Jersey publishes two rates for every municipality. The general tax rate, $3.485 per $100 in Alpha, is the one applied to the assessed value on the bill: $300,000 assessed owes $10,455.00. The effective tax rate, $2.396 per $100, is "the general property tax adjusted by the municipality's equalization ratio", the rate on market value. Dividing one by the other puts Alpha's assessments at about 68.75% of market value, well below market value, the sign of a town that has not revalued recently; the state median is 70.02%.
The effective rate is the fairer comparison between towns. On it Alpha ranks 163rd of 564, against 176th on the general rate, and sits $0.260 above the $2.140 median effective rate. At 68.75%, a $300,000 assessment corresponds to roughly $436,364 of market value.
Alpha's rate in 2024 and 2025
The general tax rate fell $0.160 per $100 (4.36%) from $3.644 per $100 in 2024, and the same $300,000 assessment owes $477.00 less than at last year's rate. In 2024 Alpha ranked 139th. The effective rate went from $2.871 to $2.396 per $100 (down 16.54%), and the implied ratio from 78.79% to 68.75%: market values rose faster than assessments.
Tax on common assessed values in Alpha
| Assessed value | 2025 bill | At the 2024 rate | Versus NJ median rate |
|---|---|---|---|
| $200,000 | $6,970.00 | $7,288.00 | +$1,050.00 |
| $300,000 | $10,455.00 | $10,932.00 | +$1,575.00 |
| $400,000 | $13,940.00 | $14,576.00 | +$2,100.00 |
| $500,000 | $17,425.00 | $18,220.00 | +$2,625.00 |
| $750,000 | $26,137.50 | $27,330.00 | +$3,937.50 |
Each bill is the assessed value divided by 100 and multiplied by $3.485, before exemptions, credits or special charges. These are assessed values, not sale prices: at 68.75% the $300,000 row is a property worth about $436,364. The last column is the difference from the same assessment at the $2.960 per $100 state median.
How Alpha compares in Warren County and New Jersey
Among the 22 municipalities in Warren County, Alpha ranks 12th highest; the county median is $3.520 per $100, so Alpha sits $0.040 per $100 below it. The next higher rate in the county is Mansfield Township (Warren County) at $3.563, and the next lower is Hackettstown at $3.477. Statewide, 68% of municipalities have a lower general tax rate than Alpha.
Outside Warren County, the closest rates are West Deptford Township ($3.483, Gloucester), Robbinsville Township ($3.488, Mercer), Bloomfield Township ($3.489, Essex), Dover ($3.490, Morris). Because towns assess at different shares of market value, the effective rate is the better guide to what a house of a given price pays.
Appealing a Alpha assessment
New Jersey appeals go to the Warren County Board of Taxation. The petition is due April 1, or May 1 in a year when Alpha implemented a municipal-wide revaluation or reassessment (NJ Division of Taxation). Property assessed above $1,000,000 may go directly to the Tax Court, and a County Board judgment can be appealed to the Tax Court within 45 days. The Board tests the assessment against the common level range: the average ratio plus or minus 15%. Using the 68.75% ratio implied by the state's two rates, that range runs from about 58.44% to 79.06% of market value; the Director's official average ratio for Alpha, which the County Board applies, can differ slightly.
The New Jersey appeal page sets out each step with its source and the ratio arithmetic. This is a summary of the published procedure, not legal advice.
Alpha property tax questions
What is the property tax rate in Alpha, NJ?
Alpha's 2025 general tax rate is $3.485 per $100 of assessed value; its effective rate, on market value, is $2.396 per $100. Source: New Jersey Division of Taxation.
How much is the property tax on a $300,000 assessment in Alpha?
$300,000 ÷ 100 × $3.485 = $10,455.00 a year, before exemptions and credits. At the 2024 rate the same assessment owed $10,932.00.
Is Alpha's tax rate high for New Jersey?
It ranks 176th highest of 564, above the middle of New Jersey municipalities; the median is $2.960 per $100. On the effective rate, which allows for different assessment levels, it ranks 163rd.
How do I appeal a Alpha property assessment?
Petition to the County Board of Taxation: by April 1 (May 1 after a municipal-wide revaluation) (NJ Division of Taxation; Guide to Tax Appeal Hearings). Then: county board hearing and judgment (Set by the County Board); appeal to the tax court (Within 45 days of the County Board's judgment).
Source: New Jersey Division of Taxation, 2025 General Tax Rates (general and effective tax rates by county and municipality); prior year from the 2024 General Tax Rates. Appeal steps: NJ Division of Taxation, Assessment and Appeals (updated August 15, 2025); NJ Division of Taxation, A Guide to Tax Appeal Hearings (revised 2022). Last checked October 21, 2026. This page explains published figures; it is not tax or legal advice.