HMRC use the Analogy of a shop window….
The cost of a web site is analogous to that of a shop window. The cost of constructing the window is capital; the cost of changing the display from time to time is revenue. (BIM35870)
UITF Abstract 29
Set out 4 key areas of cost:
- Planning – P&L
- Application and infrastructure development – Tangible Fixed Asset
- Design costs – P&L
- Content costs – P&L
HMRC also have some useful information on software in CA23410
Computer software qualifies for PMAs if it is not already plant.
Computer software is not defined in the capital allowance legislation. You should treat computer programs of any type and data of any kind as computer software. Computer programs range from operating systems like Windows to games like Solitaire. There may be no physical asset because software is sometimes transferred by electronic means, for example it may be downloaded over the Internet. Software acquired that way is also plant.
A person may acquire a right to use or otherwise deal with computer software. If so, the right and the software to which it relates are plant. Treat the person as owning the plant while the person is entitled to the right.
Capital Allowances and the Annual Investment Allowance can be claimed against Plant including software.
What about an App development costs ?
the same approach should apply