365 subscription billing date change

You cannot change the billing date for your Microsoft 365 subscription directly. However, you can change your billing frequency (e.g., from monthly to yearly) at renewal. This change will take effect at the next renewal date. To manage your billing frequency, you need to access the Microsoft 365 admin center and follow the appropriate steps based on your billing account type (MCA or MOSA).

If you want to change the billing frequency, make sure to check what type of billing account you have and follow the guidelines provided for your specific account type.

References:

• Change your Microsoft 365 subscription billing frequency
• Understand your invoice for your Microsoft MCA billing account
• Manage term duration and billing frequency
• Upgrade or change to a different Microsoft 365 for business plan
• Change your billing frequency
• Manage your Microsoft business billing accounts
• About admin roles in the Microsoft 365 admin center
• Manage your Microsoft business billing profiles
• Message center in the Microsoft 365 admin center.