How to Use the Officetel Home-Count Checker
An "officetel" is a Korean building type legally classified as a commercial/office facility, yet in practice large numbers of them are lived in like apartments. Korean tax law applies a substance-over-form principle: what matters for taxes like capital gains and the comprehensive real estate tax isn't the registered zoning, but how the unit is actually used. The U.S. has no identically named category, but the same substance-over-form logic shows up in American tax rules for mixed-use and live/work properties.
This calculator asks whether the unit is actually occupied as a residence and how the lease or deed classifies it, then estimates whether it would likely be treated as a residence for tax purposes. If either the actual use or the paperwork points to residential, the tool leans toward "counts as a residence" — mirroring how U.S. rules like the Section 121 primary residence exclusion or a state's homestead exemption generally look at real occupancy, not just zoning labels.
Real determinations depend on specific facts — utility records, occupancy history, lease terms, and local or state rules — reviewed by a tax authority or professional. Treat this tool as a general educational starting point, not a final answer, especially before a transaction where residence classification affects your taxes.
Frequently Asked Questions
No. Korea's officetel (a legally commercial/office-zoned unit often used as housing) has a specific home-count rule for taxes like capital gains and comprehensive real estate tax. The U.S. has no identical nationwide rule, but similar substance-over-form logic applies to things like mixed-use lofts, live/work condos, and homestead exemption eligibility.
Often yes. Many U.S. tax benefits, such as the Section 121 primary residence exclusion or a state's homestead exemption, look at how you actually use and occupy the property, not just its zoning classification.
Not necessarily. If the occupant is actually living there as a home, authorities can look past the paperwork and apply residential rules based on actual use — similar to how Korea evaluates officetels.