UK Spouse visa payslip timings

[Hira81]

My situation: please help
My employment start date is 07/08/2023 got fully paid £2100 on 31/08/2023. Next month (31/01/2024) this will be 5 months and 23 days at my employer (permanent, salaried, above £26k gross). There will be 6 month payslip

Iv been issued payslips for months aug, Sep , oct, Nov , Dec , Jan (so 6 payslips), and have the 6 bank statements supporting these. I get paid at the end of each month. As I started on 7th August I will be with the company 7th of Feb 6 month can I use Jan payslip and apply 8 of Feb or do I need to wait Feb payslip