a.^ Zagorets, the champions of South-East Third League, declined promotion due to financial and organizational reasons; Maritsa Plovdiv took their place as runners-up.
[6] b.^ CSKA Sofia II officially declined to participate in the South-West Third League and was dissolved.
[12] C.^ Neftochimic will play at Gradski Stadium in Balgarovo for financial reasons.
[14] Note: Flags indicate national team as has been defined under FIFA eligibility rules.
Clubs in the domestic league can have more than one sponsorship per jersey which can feature on the front of the shirt, incorporated with the main sponsor or in place of it; or on the back, either below the squad number or on the collar area.