In the AdSense program, you'll be paid when your earnings reach the payment threshold, as long as there are no holds on your account, and you're in compliance with our policies.
However, we don't send you a check or bank transfer at the exact moment the zeroes roll over. First, we have to validate your earnings for accuracy -- a process that takes place the first week of every month on the previous month's earnings. Then, we send payments a couple weeks later, usually during the last week of the month.
So if your earnings reach the payment threshold in February, we'll send you a payment before the end of March.
If your account balance hasn't reached the payment threshold at the end of the month, we'll roll your earnings over to the following month, until the payment threshold is reached. Balances include your total combined earnings for all AdSense products.
Please note that if a publisher's account is found to be in violation of our Terms and Conditions or policies, we may at any time withhold payment (beginning from when Google initiates its investigation of potential violations), charge back the publisher's account, and/or refund advertisers for clicks received on the publisher's site or AdSense for search results page. In addition, if a publisher is past due on any payment to Google in connection with the Google AdWords program, we reserve the right to withhold payment until all outstanding payments have been made. For a complete description of payment terms, please refer to the AdSense Terms and Conditions.