If you are relying on your annual income to meet the minimum financial requirements for a spousal visa, you will need to provide proof of your regular salary (for example, in the form of payslips).
However, if you are relying on savings, you will need to provide an official personal bank statement showing savings accumulated in the six months prior to your application. If you are relying on both income and savings, you will need to show proof of both.
How many months of salary for a spouse visa?
Appendix FM-SE states that spousal visa applicants who submit payroll records as proof of paid employment must provide six months or for “any period of paid employment in the 12 months prior to the date of application, if the person was employed by their current employer for less than six months.”