The Department has no plans to pre-populate Universal Credit applications for a number of reasons.
We want to ensure data is accurate and up-to-date to avoid transferring errors from legacy benefits to the Universal Credit system. Furthermore, the legacy system does not have all of the information needed for a Universal Credit claim. Implementing a claim on inaccurate data will lead to inaccurate awards and claimants not receiving the money they are entitled to.
It is also important to note that not everyone will want to move on to Universal Credit and the Department cannot simply assume that all existing claimants want to claim Universal Credit.
We have however said that we will use existing decisions or verification to make aspects of the process easier. For example, if a claimant has an existing Work Capability Assessment decision, there will be no requirement to have another assessment in order to receive the disability elements of Universal Credit. Also, for claimants who do not have any work-related requirements, we already operate a digital claimant commitment acceptance process and we will carry that forward when moving claimants over to Universal Credit without a change in circumstances.