Collecting previously unclaimed royalties is possible, but please note that UniteSync cannot guarantee success in this process. The success of this process depends on the rules and regulations in place at different collection societies and income sources around the world.
If you had a publishing deal in the past, it may affect UniteSync's ability to collect retroactively. However, it is common for unclaimed royalties to be collected for up to 2-3 years after the usage period.
To increase the chances of claiming any historical royalties, please make sure you provide all necessary song information, including co-writer names and shares, ISRC codes, and recording information such as artist name. The more information you provide, the higher the chance of claiming any historical royalties.
You can expect to see any unclaimed income typically show up 2-3 quarters after the first distribution from joining UniteSync Publishing Administration.