Chiang Mai Land and Building Tax — Calculate in Advance to Plan Your Costs

Chiang Mai Land and Building Tax — Calculate in Advance to Plan Your Costs

The Land and Building Tax (LBT) is an annual tax that every property owner must pay. This article explains it fully to enable advance planning.

What Is the Land and Building Tax?

Enacted in 2019 to replace the old House and Land Tax, calculated based on assessed property value and usage type, payable annually every April.

Tax Rates by Usage Type

Primary residential (name in house registration):
Up to THB 50 million: 0.02% — Below THB 50M appraised value: minimal or near-zero tax for primary home

Other residential (no house registration): Same rates but without the primary home exemption

Commercial / rental: 0.30-0.70% depending on value

Vacant unused land: 0.30-3.00%, increasing 0.30% every 3 years if still unused

Calculation Examples

Example 1: Primary home, appraised THB 5,000,000 — below THB 50M exemption — effectively near zero
Example 2: Rental condo, appraised THB 2,500,000, commercial rate 0.30% → THB 7,500/year
Example 3: Vacant land, appraised THB 10,000,000, rate 0.30% → THB 30,000/year, rising to 0.60% within 3 years if unused
Example 4: Vacation home (second property), appraised THB 8,000,000, rate 0.02% → THB 1,600/year

Legal Ways to Reduce Tax

Register house registration in primary residential property: Reduces rate from 0.30% to 0.02% for primary home
Use land for agriculture: Converting usage type from vacant to agricultural significantly reduces tax
Verify appraised value accuracy: If appraised value is higher than fair market value, the assessment can be contested

Payment and Penalties

Payment deadline: March-April each year
Late penalty: 40% of unpaid tax per year
Continued non-payment: May ultimately result in asset seizure

What Investors Must Include in Yield Calculations

Land and Building Tax is a cost many investors forget to include in Net Yield calculations — causing actual returns to be lower than expected.

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