Timeline

• 14.04.1890
• German law on the permission to issue of silver and copper coins by the German East African Company; effective immediately
• 20.11.1890
• Treaty between the German government and the German East Africa Company on the transfer of the Company's sovereign rights to Germany; effective 01.01.1891:
  - §7.4: The Company kept the right to establish a bank with the issuing privilege for paper money (not implemented)
  - §7.5: The Company kept the right to issue silver and copper coins.
• 17.01.1893
• Ordinance on the demonetization of foreign copper coins (their import had already been forbidden after 01.07.1891); effective 01.02.1893
  - Paisa coins from India and Zanzibar could be exchanged on par against Company Pesa coins until 30.04.1893.
• 15.09.1893
• Ordinance on the demonetization of the Maria Theresa Thaler (their import had already been forbidden after 01.04.1893); effective immediately
• 20.09.1893
• Ordinance on the demonetization of silver coins from Mombasa (their import had already been forbidden after 01.04.1893), Indian silver coins remained current; effective 01.11.1893
• 15.11.1902
• Treaty between the German government and the German East Africa Company on the termination of the issuance of silver and copper coins; effective 30.03.1903
• 23.12.1903
• Imperial ordinance on the issuance of new silver coins (without the name of the German East Africa Company) and dezmalization of the sub-unit; effective immediately
  - 28.02.1904: German ordinance on the implementation of the monetary reform, which also introduced a fixed rate of 20 German Reichsmark = 15 German East African Rupees; effective 01.05.1904 (by proclamation of 18.04.1904)
  - 31.03.1910: Demonetization of the non-decimal subsidiary coin of 1 Pesa (which had passed as 1⁹⁄_{16 Heller).}
• 30.10.1904
• Law on the establishment of the German East African Bank (under the ordinance on banknote issuance in the German colonies of 30.04.1904); effective upon constitution of the bank on 06.01.1905
  - 15.06.1905: Start of paper money issuance.
• 1915-1917
• Wartime money issuance:
  - ??.12.1915: Establishment of a mint in Tabora which issued subsidiary coins of 20, 5 Heller and a gold coin of 15 Rupees
  - 15.06.1915: Start of issuance of emergency paper money (called "interim notes") by the German East African Bank in Daressalam and Tabora, continued until mid-1916
  - 01.07.1917: Start of issuance of emergency paper money (called "bush notes") by the German East African Bank in Kissaki.

Valuation Regimes

• 1890-1904
• Fixed rate against Indian Rupee
• 1904-1916
• Fixed rate against German Reichsmark

Timeline

• 1916-1920
• Introduction of Indian and East African currency during the World War I occupation, the German East African currency remained in circulation at rate of 1 German East African Rupee = 1 Indian Rupee = ¹⁄₁₀ British Pound.
  - The so-called "interim notes", issued 1915-1916, and "bush notes, issued 1917, of the German East African Bank were declared invalid without compensation. The regular notes of 1905-1912 were no longer in circulation.
• ??.??.1921
• Ordinance [Metall Currency, No. 43] on the adoption of the East African Shilling coinage; effective 01.01.1922
• ??.??.1921
• Ordinance [Currency Notes, No. 44] on the adoption of the East African Shilling paper money; effective 01.01.1922
• 01.01.1922
• Start of currency exchange:
  - 23.07.1921: Demonetization of the Indian currency (before the nominal introduction of the East African currency)
  - 01.01.1922: Start of issuance of East African coins and banknotes
  - 31.03.1923: Demonetization of the German East African silver coins
  - 15.08.1925: Demonetization of the German East African subsidiary coins.

Timeline

• 23.12.1965
• Law on the establishment of the central bank [Bank of Tanzania Act Act, No. 12]; effective upon constitution of the bank on 14.06.1966
• 14.06.1966
• Start of currency exchange:
  - 14.06.1966: Start of issuance of the new banknotes and coins
  - 14.09.1967: Demonetization of the East African currency, coins were tolerated until 10.04.1969.

Valuation Regimes

• 1966-1975
• Fixed rate against US Dollar
• 1975-1979
• Fixed rate against IMF Special Drawing Rights (SDR) unit
• 1979-
• Variable rate