To offset initial usage costs, Google Cloud offers a $300 free trial and Google Maps Platform features a recurring $200 monthly credit.
Google Cloud Free Trial
Google Cloud offers a $300 free trial (see Google Cloud Free Program). The free trial applies toward the first billing account you create.
During the free trial, your first Cloud Billing account is in "free trial mode" and no charges will be made against your payment method. The free trial ends after the trial period elapses, or when the $300 is spent, whichever happens first.
On or before the free trial ends, you must upgrade your first Cloud Billing account to a paid account to avoid any disruptions to your Google Maps Platform usage (see Upgrading to a paid account).
Google Maps Platform monthly credit
Google Maps Platform features a recurring $200 monthly credit (see Pricing for Maps, Routes, and Places). The monthly credit applies towards each Maps-related billing account you create.
In the Google Cloud Console, on the Google Maps Platform overview page, you can see how your billing compares to the monthly credit amount:
A Maps-related billing account is any Cloud Billing account that includes projects with Google Maps Platform APIs or SDKs enabled; or more specifically, projects with activity that results in charges for qualifying Google Maps Platform SKUs (see Billing overview for Google Maps Platform products).
If the first Cloud Billing account you create is used for a project with Google Maps Platform APIs or SDKs enabled, both the Google Cloud Platform $300 free trial and the Google Maps Platform recurring $200 monthly credit apply.
This is how it works: During the free trial, charges are first deducted from the Google Maps Platform recurring $200 monthly credit. If charges exceed $200 in a given month, the exceeded amount is deducted from any amount remaining from the Google Cloud Platform $300 free trial.
As noted above, on or before the free trial ends, you must upgrade your first Cloud Billing account to a paid account. Once you have upgraded, the $200 monthly credit will continue to be applied to your Cloud Billing account, even after the free trial ends.
Creating multiple Maps-related Cloud Billing accounts is a violation of the Google Maps Platform Terms of Service.
Additional Google Maps Platform credits are available through Google public programs that support nonprofit, startup, crisis response, news media, and academic organizations.
If you have additional credits remaining for the month, you can see the following diagram by selecting your billing account on the Billing page in the Google Cloud Console.