Mount Arlington Boro NJ property tax rate 2025: 2.203
Mount Arlington Boro, Morris County. 2,453 parcels in the MOD-IV 2026 file. Rate shown is tax year 2025 (latest available — not yet matched to assessment year).
Assessments are tax year 2026; latest published general rate we have is 2025. Estimate uses that rate until the 2026 rate is loaded.
Mount Arlington Boro at a glance
2,453 parcels are on the 2026 file. The 2025 general rate is 2.203, and the prior rate on file is 2.036 for 2024. A typical class 2 assessment is $412,452. Usable sales with a 2025 deed: 90, median $487,500. The state construction file lists 1,575 permits here. The median class 2 house was built in 1992. A property page adds that parcel’s permits, flood zone, mapped flood elevation, and high and low ground. Owner names are not shown.
How to read a Mount Arlington Boro bill
Mount Arlington Boro’s general rate of 2.203 is tax year 2025 on the 2026 assessment file. It is not a 2026 bill. The prior general rate on file is 2.036 for 2024. School, county, and municipal shares of this rate are 55.7%, 12.4%, and 31.9%. The largest slice is schools. In Morris County the middle school share for rate year 2025 is 62.9% in Netcong Boro. Class 2 net assessments changed from $893,054,100 to $894,195,500, up 0.1%, on 2,167 parcels. Usable sales with a 2025 deed: median $487,500 (90 sales). The largest class share of net assessed value is Residential at 76.5%. State school aid is outside these bars.
Building permits in Mount Arlington Boro
The New Jersey construction-permit file lists 1,575 permits in Mount Arlington Boro. This file is a full record from 2021 on. Older permits are mostly missing. Work from before then can be missing here and still be at the Mount Arlington Boro construction office.
2025 general tax rate in Mount Arlington Boro: 2.203
This general rate is tax year 2025. The assessment file is 2026. It is not a 2026 bill.
In Morris County, the median municipality’s school share (rate year 2025) is 62.9%; this town is 55.7%. The largest slice here is schools. State school aid is not in these bars — it reduces the school levy before the rate is struck. All Morris towns · How NJ taxes work.
The school percent is the local property-tax levy. The district for this municipality is Mount Arlington Boro (K-12), FY2027 K–12 aid $1,065,847. Those aid figures are not slices of these bars. Morris district table.
Prior year (2024) general rate: 2.036.
Tax on a $200,000 or $500,000 sale in Mount Arlington Boro
These figures use Mount Arlington Boro’s own ratio and general rate. How the same sale price is calculated for every town. This is not an appraisal and not a collector bill.
2025
A $500,000 sale at the 2025 ratio of 87.73% would be assessed at about $438,650. At the general rate of 2.203, the estimated tax is $9,663. A $200,000 sale at that same ratio and rate would be assessed at about $175,460, with an estimated tax of $3,865.
In Morris County for 2025, the $500,000 bill runs from $4,917 in Harding Twp to $14,240 in Netcong Boro. The middle bill is $9,881 in Chester Boro. All Morris towns.
See every New Jersey town on the same $200,000 and $500,000 sale for 2025.
Recent usable sales in Mount Arlington Boro
These are the five newest usable deeds on the 2026 file for Mount Arlington Boro. A $1 deed and a non-usable SR1A sale are left out. Each parcel stores one sale, so this is not every deed recorded in town.
| Address | Deed date | Sale price | Net assessment |
|---|---|---|---|
| 14 RIDGEVIEW LN | 12/17/2025 | $458,888 | $293,000 |
| 72 CRESTVIEW LN | 12/1/2025 | $295,000 | $207,700 |
| 107 ONDISH CT | 11/24/2025 | $739,000 | $552,700 |
| 46 CRESTVIEW LN | 11/24/2025 | $325,000 | $219,800 |
| 123 MCGREGOR AVE | 11/17/2025 | $800,000 | $709,400 |
Owner names are not shown. The rate year and the assessment file year differ, so this table does not print an estimated tax. This is not a collector’s bill.
Highest estimated tax in Mount Arlington Boro: $62,843
Residential
The highest residential estimate in Mount Arlington Boro is $62,843 at 477 WINDEMERE AVE, on a net assessment of $2,852,600 and a 2025 general rate of 2.203.
| Address | Class | Net assessment | Rate year | Estimated tax |
|---|---|---|---|---|
| 477 WINDEMERE AVE | 2 — Residential (four families or less) | $2,852,600 | 2025 | $62,843 |
| 35 WINDEMERE AVE | 2 — Residential (four families or less) | $2,418,700 | 2025 | $53,284 |
| 7 EDGEMERE AVE | 2 — Residential (four families or less) | $2,044,500 | 2025 | $45,040 |
| 31 EDGEMERE AVE | 2 — Residential (four families or less) | $1,961,700 | 2025 | $43,216 |
| 33 EDGEMERE AVE | 2 — Residential (four families or less) | $1,950,000 | 2025 | $42,959 |
Business
The highest business estimate in Mount Arlington Boro is $292,929 at 2 HILLSIDE DR, on a net assessment of $13,296,800 and a 2025 general rate of 2.203.
| Address | Class | Net assessment | Rate year | Estimated tax |
|---|---|---|---|---|
| 2 HILLSIDE DR | 4A — Commercial | $13,296,800 | 2025 | $292,929 |
| 400 VALLEY RD | 4A — Commercial | $8,663,300 | 2025 | $190,852 |
| 111 HOWARD BLVD | 4A — Commercial | $8,500,000 | 2025 | $187,255 |
| 181 HOWARD BLVD | 4A — Commercial | $6,503,000 | 2025 | $143,261 |
| 1 SEASON DR | 4A — Commercial | $6,479,000 | 2025 | $142,732 |
Owner names are not shown. Every parcel in this town uses the same rate, so the highest tax is the highest assessment. Commercial and industrial parcels (class 4A and 4B) are the business list. Apartment buildings are class 4C and are not in that list. This is not a collector’s bill.
Ratable base in Mount Arlington Boro, typical class 2 assessment $412,452
Class 2 residential in the MOD-IV file: 2,168 parcels, average net assessment $412,452.
How assessments changed
Class 2 residential net assessments changed from $893,054,100 to $894,195,500, up 0.1%, on 2,167 parcels that have both a prior net and a 2026 net. This is the assessment roll, not an appraisal.
Among 90 usable recorded sales whose latest deed on this file is in 2025, the median price is $487,500. A $1 deed and a non-usable SR1A sale are left out. Each parcel stores one sale, so this is not every deed recorded that year.
Share of net assessed value by property class (MOD-IV). Not a school-quality rating.
| Class | Parcels | Net assessed | % of net |
|---|---|---|---|
| Residential 2 | 2,168 | $894,195,500 | 76.5% |
| Vacant land 1 | 235 | $132,644,500 | 11.4% |
| Commercial 4A | 39 | $78,634,900 | 6.7% |
| Apartment 4C | 9 | $62,949,100 | 5.4% |
| Other / unclassified other | 2 | $0 | 0.0% |
Housing stock in Mount Arlington Boro, median year built 1992
On the 2026 file, class 2 houses in Mount Arlington Boro with a year built have a median year of 1992, about 34 years old. Of those 2,160 houses, the largest share was built 1980–1999. This is the assessor’s year built. It is not a ranking of towns.
By parcel count, Residential 88.4%, Vacant land 9.6%, Commercial 1.6%, Apartment 0.4%, Other / unclassified <0.1%. Those percentages are a count of parcels, not a share of tax dollars. The class table uses the tax-base share.
Year built
Assessor building line
Grouped from the assessor’s building abbreviation. One-family, two-family, and condo are the codes that read clearly. Other codes stay in their own group. This is not a bedroom count, and square feet are left off because most records do not include them.