A short-term let and an AST are different products even when they look similar on the surface. The legal frameworks, the tax treatment and the operational rhythm all differ.
Different tenancy types
A short-term let — a few weeks at a time — is usually a licence, not a tenancy. The eviction rules, the deposit rules and the notice rules of the AST regime do not apply.
Different revenue, different costs
Short-term rates per night are higher; the operating overhead (cleaning, linen, marketing, voids) is much higher too. Comparing gross yields misses the picture.
Different planning permissions
Many local authorities now restrict short-term letting. Confirm the position before recommending the model to a landlord.
