The current total local sales tax rate in Mercerville-Hamilton Square, NJ is 6.625%. The December 2020 total local sales tax rate was also 6.625%.
| District | Rate |
|---|---|
| New Jersey State | 6.625% |
| Mercer County | 0.000% |
| Mercerville-Hamilton Square | 0.000% |
| Total | 6.625% |