A house registration book is not proof of ownership
Start here, because it is the root of several other misunderstandings. Having your name in a house registration book does not make you the owner of that house, and not having it there does not cost you any ownership.
Ownership is evidenced by the title deed, or the condominium unit title. The house registration book is a civil registration document recording who has their domicile at that house number. The two answer different questions and are unrelated as far as ownership goes.
Following from that is the term householder, which causes more confusion than anything else here. The householder is the person named in the book as head of the people living there, responsible for notifying moves in and out. The owner is whoever is named on the title deed. Those two can be, and frequently are, different people.
The blue book and the yellow book
The blue house registration book is for Thai nationals and those with permanent residence. The yellow book is for non-Thai nationals who entered the country lawfully but are here on a temporary basis.
Foreign nationals living in Thailand long term often obtain the yellow book to have a formal record of address, which is genuinely useful for things like a driving licence, opening accounts, or any government dealing that requires proof of where you live.
What the yellow book does not give is any right over property. It remains a civil registration document exactly as the blue one does. A foreign condominium owner with a yellow book still owns under the unit title, no more and no less.
For foreign nationals weighing up property ownership in Thailand, the real conditions are in what foreigners can and cannot buy in Thailand, and accommodation notification, which is a separate matter from house registration, is in the TM30 notification.
One year on the registration is worth real money
Here is why sellers should care about this more than they do, and it is something plenty of people discover standing at the land office counter, which is too late.
Selling immovable property used as the seller's principal residence, where the seller has been named on the house registration book for that property for not less than one year from the date of acquisition, is exempt from specific business tax under Royal Decree No. 342.
That is not a small number, because specific business tax including local tax runs at 3.3 percent of the sale price or the appraised value, whichever is higher. On a five million baht house that is roughly 165,000 baht, gone purely because nobody moved their name onto the registration of the house they were living in.
Two conditions make this more forgiving than people assume. The one year need not be continuous; it accumulates. And in the year of sale, even if the name has already been moved off, having previously accumulated the full year still qualifies.
For property that is marital property, one spouse being registered for the full year is enough; both names are not required. The whole picture of tax on a sale is in selling before and after five years.
A tenant wants to register. Should a landlord worry?
This is the question landlords ask most often, and the short answer is that the fear comes from the misunderstanding at the top of this article.
Letting a tenant register at the address gives them no right whatsoever over the property, does not make eviction harder, and does not touch your ownership, because ownership sits with the title deed rather than the registration book.
What to do instead of refusing is to make it orderly. Agree in writing how many days after the tenancy ends they will move their name off, and keep a copy of their identification, because the problem that actually occurs is not a tenant being registered. It is a tenant who has moved out physically and left their name on, so your registration book carries someone you cannot reach.
If you reach that point and cannot contact them, the householder can notify the move out at the district office, and the name is transferred to the central registry, which exists for people whose whereabouts are not established. The process is real and it works, but you have to go and do it. It does not happen by itself.
A new house needs a house number first
A house that has just been completed has no registration book. You apply for a house number at the district office for that area, and the registration book for the property follows.
The correct order is: finish the build, apply for the house number with evidence of the land right and the construction permit, receive the number and the book, and only then move names in. Applying for permanent electricity and water meters usually requires the registration book, which is why this step should be done as soon as the house is finished rather than left.
For a house bought from a development, the developer has usually obtained the number already and hands over the book on transfer day. What to check that day is that the number matches the contract, and whether what you are given is the original book or a copy. What else to check at handover is in the handover checklist.
Check the registration when buying a resale home
Before transfer, ask to see the registration book for the property and check whose names are still on it, because other people's names remaining after you become the owner is something you have to chase afterwards, and it moves slower than you would expect.
What to put in the contract is that the seller will move every name off the registration before, or within a set number of days after, the transfer, and will hand over the original book on transfer day. A few extra lines that remove the whole problem.
And once you own it, move your own name on promptly. Not because any law requires you to live there, but because the one-year clock for the specific business tax exemption starts from that point, and nobody knows when they will need to sell.
Frequently asked questions
Does being on the house registration make me the owner?
No. Ownership is the title deed or unit title. The registration book is a civil registration record of who has their domicile at that house number.
What is the difference between the householder and the owner?
The householder is named in the book as head of the residents and notifies moves in and out. The owner is named on the title deed. They can be different people.
Is it risky to let a tenant register at my property?
It gives them no right over the property and does not affect your ownership. The real problem is a tenant who moves out and leaves their name on, so set a deadline for removal in the tenancy agreement.
The tenant will not move their name off. What now?
The householder can notify the move out at the district office and the name goes to the central registry. You have to go and do it; it does not happen automatically.
Does a yellow book give extra rights?
Not over property. It is a civil registration document for non-Thai nationals who entered lawfully, useful for proving an address to various institutions.
How long do I need to be registered to avoid specific business tax?
Not less than one year from the date of acquisition, and it does not have to be continuous. In the year of sale you need not still be registered, provided the year was accumulated beforehand.
Key takeaways
- The registration book is not proof of ownership, and the householder is not the owner.
- One accumulated year on the registration exempts the sale from specific business tax, which is a substantial sum.
- That year need not be continuous, and you need not still be registered in the year you sell.
- Letting a tenant register is safe for your ownership, but set a removal deadline in the agreement.
- When buying resale, check whose names remain and put it in the contract.
- Once you own it, register promptly, because the one-year clock starts then.