SAM101010 | Records: maintain taxpayer record: address flow from CID framework to SA
From HM Revenue & Customs · Self Assessment Manual
If you change an address on the Taxpayer Business Service (TBS) then the revised details will flow automatically to the SA record.
For the purpose of addressing output the computer uses the following order of priority.
Where a capacity is present
Main capacity address (not held on PAYE)In all other cases
Communication address
Base address
Main source business address
RLS signal
If a capacity is present and the RLS signal is set against the main capacity address
The computer will not use any other addresses held on the taxpayer’s SA recordIn all other cases, if the RLS signal is set against an address on the SA system
The computer will use the next address in the order of priority