Double linkage to the index: what awaits retirees in 2027. In Russia, old age insurance benefits will increase twice in 2027 - from February 1 and April 1. As Sergey Chirkov, chairman of the Social Fund of Russia (SFR), said, in annual terms the increase will be similar to the "13th pension" increase. State Duma deputies will consider the draft budget of the SFR, which, in particular, determines the pension adjustment procedure, on October 29. We give examples of index calculations and tell how it will happen.