Under existing regulations governing registration fees payable under the Data Protection Act, 1988, the fee is £200 for applications by persons or firms with more than 25 employees, and £50 in all other cases.
The existing regulations have been in force since 1990 and they replaced an original prescribed uniform fee of £100. I understood that one of the reasons for the changeover in 1990 from a uniform to a two tier fees structure was that the latter was perceived as being more equitable in that it takes account of the size of a registrable data controller's business.