New Castle
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Cost of Owning Here
Official property tax rates published by the NH Department of Revenue Administration, plus estimated tax bills for New Castle.
Why "Effective Rate" is a better comparison
New Hampshire towns do not all assess property at the same percentage of market value. The state publishes an annual equalization ratio for every municipality showing how close local assessments are to full market value. A town that assesses homes at only 64% of market value will show an artificially high tax rate compared to a town that assesses at 100%. Multiplying the local rate by the equalization ratio produces an effective (equalized) rate that can be fairly compared across any two towns in the state.
| Year | Total Rate | Effective Rate | Municipal | Local School | State Ed. | County |
|---|---|---|---|---|---|---|
| 2025 | $5.73 | $3.66 | $3.22 | $0.16 | $1.53 | $0.82 |
Source: NH DRA
Example Tax Bills for 2025
| Home Value | Estimated Annual Tax | Estimated Monthly |
|---|---|---|
| $250,000 | $1,433 | $119 |
| $350,000 | $2,006 | $167 |
| $500,000 | $2,865 | $239 |
| $750,000 | $4,298 | $358 |
| $1,000,000 | $5,730 | $478 |
Estimates calculated using the 2025 local tax rate of $5.73 per $1,000 of assessed value. Actual tax bills depend on your property's specific assessed value and any exemptions or credits you may qualify for.
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Compare New Castle with Other Towns
See how New Castle stacks up against other NH communities.