The first full year of the Second World War saw twenty-three stamps issued by the Reichspost.
3rd March 1940, Leipziger Frühjahrsmesse (Leipzig Spring Fair)
Sondermarken (Commemoratives)
4 values: 3Rpf., 6Rpf., 12Rpf., 25Rpf. (Mi. Nr. 739-742)
28th March 1940, Nationale Briefmarkenausstellung in Berlin (National Philatelic Exhibition in Berlin)
Sondermarke (Commemorative)
1 value: 24+76Pf. (Mi. Nr. 743)
10th April 1940, 51. Geburtstag von Adolf Hitler (51st Birthday of Adolf Hitler)
Sondermarke (Commemorative)
One value: 12+38pf (Mi. Nr. 744)
30th April 1940, Tag der Arbeit (Day of Work)
Sondermarke (Commemorative)
One value: 6+4pf (Mi. Nr. 745)
22nd June 1940, Rennen um Das Blaue Band in Hamburg (Running of Blue Riband Race, Hamburg)
Sondermarke (Commemorative)
One value: 25+15Rpf. (Mi. Nr. 746)
20th July 1940, 7. Rennen um das Braune Band von München Riem (7th Running of the Brown Riband, München-Riem)
Sondermarke (Commemorative)
One value: 42+108Pf (Mi. Nr. 747)
25th July 1940, Eingliederung von Eupen, Malmedy und Moresnet in das Deutsche Reich (Incorporation of Eupen, Malmedy and Moresnet into the German Reich)
Sondermarken (Commemoratives)
Two values: 6+4Rpf., 12+8Rpf. (Mi. Nr. 748-749)
9th August 1940, 50 Jahre Helgoland zum Deutschen Reich gehörend (50th Anniversary of the incorporation of Heligoland into the German Reich)
Sondermarke (Commemorative)
One value: 6+94Pf (Mi. Nr. 750)
5th November 1940, Winterhilfswerke (Winter Relief Fund) – Bauwerke (Historic Buildings)
Sondermarken (Commemoratives)
Nine values: 3+2Rpf., 4+3Rpf., 5+3Rpf., 6+4Rpf., 8+4Rpf., 12+6Rpf., 15+10Rpf., 25+15Rpf., 40Rpf+35. (Mi. Nr. 751-759)
26th November 1940, 50 Jahre Diphtherie-Serum (50th Anniversary of the discover of the diptheria serum)
Sondermarken (Commemoratives)
Two values: 6+4Rpf., 25+10Rpf. (Mi. Nr. 760-761)