The Housing and Construction Authority (HMS, Húsnæðis- og mannvirkjastofnun, say: HOOS-nye-this og MAN-virk-ya-stof-nun, the state office for housing and buildings) watches the rental market and pays housing benefit. Every home rental should have a written lease. Since 1 January 2026, the landlord must register that lease in the HMS rental register (Leiguskrá, say: LAY-gu-skrow), normally within 30 days of signing. That duty belongs to the landlord, not to you. The law also allows more than one kind of security: a money deposit, a bank guarantee, a guarantee from another person, or an insurance guarantee. If your security is money, it must sit on a separate account that earns interest, and you get it back with that interest at the end. If your rent takes too much of your income, you can ask for monthly housing benefit. Beside private landlords, there are also non-profit housing groups. They usually work with a waiting list and a membership.