No single statute defines the licence to occupy in Singapore. Its foundations sit in the common law of contract and land, refined by the Conveyancing and Law of Property Act 1886 (CLPA), under which dealings in land are governed and which draws the boundary between proprietary interests and mere permissions. Because Singapore has no unified residential tenancy statute and no general rent control, the parties' agreement does most of the heavy lifting, which cuts both ways: the freedom to structure a licence is real, but so is the absence of a statutory safety net to correct sloppy drafting.
The controlling authority on characterisation is Street v Mountford [1985] AC 809, applied consistently by the Singapore courts. The test turns on exclusive possession: if the occupier can exclude the owner and everyone else, treating the space as their own for the term, the arrangement is a tenancy whatever it is called. The owner's retained rights of entry, the sharing of the space, the provision of services and attendance, and any real measure of operational control all point the other way, toward a licence. A useful summary of how the exclusive-possession test separates leases from licences is set out in the Cornell-style casebook treatment most Singapore practitioners cross-reference, though the primary authority to cite in the document itself remains Street v Mountford and its Singapore progeny.
Tax treatment follows the substance. The Stamp Duties Act 1929 charges lease duty at 0.4% of the rent over the term, payable to IRAS within 14 days of execution in Singapore. IRAS guidance is explicit that a genuine licence, non-exclusive and not operating as a lease, may fall outside lease duty altogether, the food-court stall being the textbook example. But if a licence is executed in connection with a lease, or in truth acts as one, it becomes chargeable. An unstamped instrument that should have been stamped is not admissible in evidence until the duty and any penalty are paid, so the characterisation question is also a tax and enforceability question. For arrangements that clearly are lettings, our Singapore stamp duty pack for tenancy agreements sets out the IRAS mechanics in full.