Yes, a business can update its insurance information after becoming Google Guaranteed. If your insurance policy expires, changes, or is replaced, you should update the information in your LSA account and provide any documents Google requests.
Keeping your insurance details current helps you avoid verification issues or interruptions to your LSA eligibility. Make sure the business name, coverage details, and policy information match what Google requires.
If Google asks you to verify the updated insurance, complete the review before assuming your badge will remain active.