The requirement now is that the financial requirement must be met. That is, the sponsor, if meeting the requirement by salaried employment, must be earning a minimum of 18,600 GBP a year. The specified evidence required is :

2. In respect of salaried employment in the UK, all of the following evidence must be provided:

(b) The P60 for the relevant period or periods (if issued).

(c) Wage slips covering:
(i) a period of 6 months prior to the date of application if the applicant has been employed by their current employer for at least 6 months; or
(ii) A period of 12 months prior to the date of application if the applicant has been employed by their current employer for less than 6 months.

(d) A letter from the employer confirming:
(i) the person's employment and gross annual salary;
(ii) the length of their employment;
(iii) the period over which they have been or were paid the level of salary relied upon in the application; and
(iv) the type of employment (permanent, fixed-term contract or agency).

(e) A signed contract of employment.

(f) Monthly personal bank statements corresponding to the same period as the wage slips at paragraph 2(c), showing that the salary has been paid into an account in the name of the person or in the name of the person and their partner jointly.

The amount of savings that the sponsor has is irrelevant if the income threshold is met.