Operator licence financial standing levels are adjusted on an annual basis. As of January 2020, for a Standard type licence, you must show financial standing of £8,000 for the first vehicle and £4,450 for each additional vehicle. For example, if you apply for a three vehicle licence, you must have available resources of £16,900.
For Restricted licences, you must show £3,100 for the first vehicle and £1,700 for each additional vehicle. Again, as an example, a two vehicle licence would require financial standing of £4,800.