The Southern German federated states of Baden (until 1872), Württemberg (until 1902) and Bavaria initially maintained separate state post authorities, that nevertheless were integrated into the nationwide administration. On 1 January 1876 a Reichspostamt under Postmaster General von Stephan was split-off from Bismarck's Reich Chancellery as a government agency in its own right. In the First World War, a Reichsabgabe tax was levied on the postal traffic from 1 August 1916 in order to finance the war expenses.