I recently renewed my domain for a year on BlueHost.  A few days later, I decided to transfer it to GoDaddy.  After transferring, GoDaddy did not show the new year that I recently paid for.  After contacting their support, they blamed it on BlueHost.  After contacting BlueHost support, I was given the following reply.  Does anybody know if this is actually an ICANN policy, or if they're just trying to short me out of the 10 bucks.Your domain was in the 45 day auto  renew grace period. This is an ICANN  policy. In short, it means that the  renewal is considered tentative for 45  days and not permanent. If you  transfer the domain within that 45 day  period you don't get the year you paid  for.
Domain Transfer not carrying over paid time
domain registration
Have a read of this page here explaining the ICANN policy on auto renew, transfers and refunds:and this ICANN page2.3 Auto-Renew Grace PeriodThe Auto-Renew Grace Period is a specified number of calendar days following an auto-renewal. An auto-renewal occurs if a domain name registration is not renewed by the expiration date; in this circumstance the registration will be automatically renewed by the system the first day after the expiration date. The current value of the Auto-Renew Grace Period is 45 calendar days. If a Delete, Extend, or Transfer occurs within the Auto-Renew Grace Period, the following rules apply:Transfer (other than ICANN-approved bulk transfer). If a domain is transferred under Part A of Exhibit B to the Registry-Registrar Agreement within the Auto-Renew Grace Period, the losing Registrar is credited with the Auto-Renew charge and the year added by the Auto-Renew operation is cancelled. The expiration date of the domain is extended by one year up to a total maximum of ten by virtue of the transfer and the gaining Registrar is charged for that additional year, even in cases where a full year is not added because of the 10-year maximum limitation.BlueHost are within their rights but should really offer you a refund if they were nice. Pester them for it. They have had the money refunded so they should give it back to you but a lot of these companies have ToC's giving them every right to keep your money.GoDaddy should have added a year to your domain. So you should now be one year up on previously despite paying for two.