Universal Credit is now delivering a Full Service across the Angus area. You are unable to claim any of the benefits it is replacing unless you have a current benefit award which contains a Severe Disability Premium (SDP), or you were entitled to an award of SDP in the previous month.
If you are in receipt of a legacy benefit then have a significant change in circumstances it is likely you will move over to Universal Credit. This chart from Newcastle Welfare Rights Service gives several examples of what could trigger a move over to Universal Credit.
During 2019, a pilot process of moving existing legacy benefit claimants over to Universal Credit will begin, the pilot will randomly select 10,000 legacy benefit claimants from across the UK to move over to Universal Credit. From 2020 the DWP will then start migrating more legacy benefit claimants over to Universal Credit and they expect that process will be completed by 2023.