Southern Company Series 2020C 4.20% Junior Subordinated Notes due October 15, 2060

So long as no Event of Default has occurred and is continuing, The Southern Company may defer interest payments on the Series 2015A Junior Subordinated Notes on one or more occasions for up to 40 consecutive quarterly periods as described in this Prospectus Supplement. Deferred interest payments will accrue additional interest at a rate equal to the interest rate then applicable to the Series 2015A Junior Subordinated Notes, compounded quarterly, to the extent permitted by applicable law.