Taxation of a Separate Residential Unit 2026

Many homeowners build or purchase a separate residential unit — for a child, a parent, or for rental — within the existing plot. Such a unit raises unique tax questions that are worth understanding before construction or purchase.

What is considered a "Separate Residential Unit" for tax purposes?

A residential unit is considered separate when it has its own entrance, kitchen, and bathroom — meaning it can function as an independent living unit, even if it is physically part of the same building or plot as the main residence.

Impact on the status of "Single Apartment" for purchase tax

This is the critical point: if you have a house with a separate residential unit registered as an independent unit (with a separate sub-plot number in the land registry), purchasing another apartment may be considered a "second apartment" — even if you are actually using the additional unit only for a family member. The formal registration in the land registry, not the actual use, is what determines this.

Building a new unit — is it "betterment" that requires a levy?

Adding a residential unit to an existing property, especially if it requires utilizing building rights that were not previously used, may trigger a betterment levy obligation — it is advisable to check with the local planning committee before starting construction, not afterward.

Taxation of income from renting the unit

If the separate unit is rented out, the income is subject to tax according to one of the three regular tracks (exemption up to a ceiling, reduced tax of 10%, or regular track) — just like any other rented apartment, regardless of the fact that it is a "unit" and not a formally separate "apartment".

What happens in a sale — division between the two units

If the entire structure is sold together (main house + unit), a separation must be made in the calculation of capital gains tax — the exemption for a single residential apartment applies only to the unit that served as the seller's actual residence, not necessarily to both units together.

Unit consolidation — when is it beneficial

Sometimes, consolidating the separate unit with the main house (cancelling the separate registration in the land registry) before a sale may simplify the tax calculation and increase eligibility for exemption — but this is a planning-legal process that requires professional guidance and prior planning.

A common mistake to avoid

A common mistake is not checking the exact registration of the unit in the land registry before purchasing another property — many buyers discover afterward that their "current" house includes a registered separate unit, which makes them "owners of an additional apartment" in a way that affects the purchase tax on the next purchase, even if they were not aware of it.

How to check if you have a separately registered unit

You can check in an updated land registry extract whether your structure is registered as one sub-plot or several separate sub-plots — critical information before any additional purchase, and it is advisable to check this in advance and not rely on a general understanding of the physical structure.

Frequently Asked Questions

Does an unregistered residential unit (without a permit) affect taxation?
Yes — unregulated construction can lead to complications both in terms of tax and planning, and it is advisable to regularize licensing before sale or rental.

Is it better to register the unit in the name of an adult child?
This can affect the "single apartment" status of both parties — it is advisable to check the exact implications with an attorney before making a decision.

What happens if the unit is only used for family hosting, not for rent?
There is no income tax liability if there is no actual income, but the "second apartment" status for purchase tax may still apply based solely on the formal registration.

Considering buying or selling a property?

View properties for sale in Ma'ale Adumim and Jerusalem, and contact the Merkaz HaNekasim team for personal advice.