Build the forecast
Enter governed parcel values from Watchdog when available. Comparable values should reflect completed, similar properties in the same municipality and class.
Current assessment
NJ MOD-IV land value
NJ MOD-IV improvement value
Used for the told-vs-forecast gap
Taxable from the first day of the next month
Municipal assessment behavior
Example: enter 78.5, not 0.785
Example: 3.125% = $3.125 per $100 assessed
This is a user-controlled scenario, not a Watchdog prediction.
Comparable improved properties
The median of entered comps becomes the suggested completed market value.
Override only when you have a better supported completed-value estimate.
Method and official New Jersey rule
The 2024 New Jersey Assessors' Handbook states that a completed new structure, addition, or alteration is valued as of the first day of the month following completion. Its example shows an April 17 completion taxed for eight months, May through December. The forecast therefore prorates only the estimated added assessment for the remaining full months of the completion year, then applies the projected full assessment for the following full year.
- NJ Assessors' Handbook, 2024
- NJ Division of Taxation: Assessment and Appeals
- NJ Division of Taxation: ratios, tax rates and MOD-IV data
Important: this is scenario analysis, not a tax bill, appraisal, legal opinion, or guarantee of an assessor's determination. Added/omitted appeals use Form AA-1 and their own timing. Confirm any notice and filing deadline with the appropriate County Board of Taxation.