Sparta Township property taxes
Sussex County, New Jersey · population 19,600
Typical home tax bill
- 20
- 21
- 22
- 23
- 24
- 25
Median of 7,081 homes (residential lots) in the state's assessment records. The tax rate is up 7.9% since 2020.
Assessments
The town's average assessment ratio for 2026.
An assessment from 50.85% to 68.79% of a home's value is inside the state's allowed range. Above that, an appeal can bring it down.
Is your assessment too high?
New Jersey checks your assessment against the town's average ratio (59.82% for 2026). If your assessment is more than 68.79% of your home's value, you may have an appeal case.
Appeal deadline
April 1, 2027 (May 1, 2027 if Sparta Township does a town-wide revaluation for 2027), or 45 days after assessment notices are mailed if that's later.
File with the Sussex County Board of Taxation. The petition has to arrive by the deadline; a postmark isn't enough. Homes assessed over $1 million can go straight to the Tax Court.
Questions
What is the average property tax bill in Sparta Township?
The typical (median) Sparta Township home paid $11,460 in property taxes in 2024, based on 7,081 homes in New Jersey's assessment records. Half of homes paid more and half paid less.
What is the property tax rate in Sparta Township?
The 2025 general tax rate is 3.668 per $100 of assessed value, up 2.2% from 2024. Your bill is your assessment divided by 100, times the rate. Compare towns by bills, not rates, because towns assess at different levels.
Is Sparta Township assessed at full market value?
No. For 2026 the state puts Sparta Township's average assessment at 59.82% of market value. Divide your assessment by 0.5982 to see the market value the town is assuming for your home.
When is the property tax appeal deadline in Sparta Township?
The next deadline is April 1, 2027, or 45 days after assessment notices are mailed if that is later. If Sparta Township does a town-wide revaluation for 2027, it moves to May 1, 2027. The petition has to be received by the Sussex County Board of Taxation, not just postmarked.
How can Sparta Township homeowners lower their property taxes?
Check that your assessment isn't too high (the checker on this page does the math), and apply for New Jersey's relief programs: ANCHOR for homeowners and renters, Stay NJ for seniors 65 and older, and the Senior Freeze. Watchdog's free benefit estimator shows which ones fit.
Property tax relief
- ANCHORA yearly benefit for New Jersey homeowners and renters under the income limits.
- Stay NJHomeowners 65 and older can get up to half of the bill back, up to a cap.
- Senior FreezePays back increases for eligible seniors and people with disabilities.
- Stack themSee how the programs work together for one household.
Buying or selling in Sparta Township?
- True cost of a homeThe monthly cost of any address, with its real tax bill.
- Sparta Township CO requirementsResale Certificate of Occupancy and smoke/CO alarm rules, fees and timing.
- Appeal savings estimatorWhat a lower assessment would save each year.
Real estate agent? Copy this page's link for buyers and sellers in Sparta Township.
Nearby towns
Sources: typical bills and assessments are medians of residential lots in New Jersey's MOD-IV assessment records (2024 bills). Tax rates: NJ Division of Taxation, General Tax Rates by County and Municipality. Assessment ratios: NJ Division of Taxation, 2026 Chapter 123 ratios. Revaluations: 2026 approved revaluations and reassessments. This page is general information, not legal or tax advice.