Many owners get a yearly assessment but never know where the number comes from. Levied by local authorities, it is based on the appraised value by use type. Understanding it lets you check you are billed correctly.
Whoever owns or holds the property on 1 January is liable. Rates vary widely by use.
| Use | Rate character |
|---|---|
| Primary residence | Lowest, high first-value exemption |
| Additional homes | From the first baht, tiered |
| Agricultural | Very low |
| Commercial/other | Higher than residential |
| Vacant land | Highest, rising over time |
Take the appraised land + building value (Treasury Department rates), subtract exemptions, multiply by the use-based rate. A registered primary home often pays very little or nothing.
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