| 3 August 1881 |
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Convention between Her Majesty's Royal Commissioners and the Representatives of the Transvaal Burghers, for the Settlement of the Transvaal Territory |
| 24 July 1890 |
7 August 1890 |
Convention with the South African Republic respecting Swaziland. |
| 1 November 1893 |
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Convention between Great Britain and the South African Republic, relative to the Affairs of Swaziland |
| 1 April 1909 |
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Convention between the Governments of the Transvaal and the Portuguese Province of Mozambique relating to Natives, Railways and Port, and Commerce and Customs |
| 1 September 1928 |
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Treaty of Commerce and Navigation between His Majesty and the and the President of the German Reich with Protocol |
| 11 September 1928 |
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Convention between His Majesty's Government in the Union of South Africa and the Portuguese Republic regarding Native Labour from Mozambique, Railway Matters and Commercial Intercourse |
| 23 April 1930 |
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Exchange of Notes between His Majesty's Government in the Union of South Africa and the German Government respecting the registration of Patents, Models and Designs |
| 12 October 1931 |
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Exchange of Notes between His Majesty's Government in the Union of South Africa and the Government of the United States of America respecting Certificates of Airworthiness for Air for Aircraft |
| 13 October 1932 |
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Exchange of Notes between His Majesty's Government in the Union of South Africa and the German Government amending the Treaty of Commerce and Navigation of September 1, 1928 |
| 17 March 1933 |
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Exchange of Notes between the Governments of the Union of South Africa and the United States of America regarding the Issue of Licences to Pilot Civil Aircraft |
| 17 March 1933 |
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Exchange of Notes between the Governments of the Union of South Africa and the United States of America regarding Air Navigation |
| 27 August 1935 |
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Commercial Agreement between the Government of the Union of South Africa and the Government of the French Republic |
| 30 October 1935 |
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African Postal Union Agreement with regulations |
| 30 October 1935 |
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African Telecommunications Agreement with Regulations |
| 2 November 1935 |
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Exchange of Notes between the Union of South Africa and Belgium regarding a Provisional Commercial Agreement |
| 7 December 1935 |
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Exchange of Notes between the Union of South Africa and Belgium Prolonging until May 31, 1936 the Provisional Commercial Agreement of November 2/7, 1935 |
| 18 December 1935 |
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Exchange of Notes Between South Africa and Germany regarding Exchange Clearing Agreement |
| 21 December 1936 |
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Exchange of Notes between Germany and South Africa - Exchange Clearing Agreement |
| 18 June 1937 |
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Agreement between the His Majesty's Government in the Union of South Africa and the Portuguese Government for Air Services between South Africa and Portuguese East Africa |
| 13 July 1937 |
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Commercial Agreement between His Majesty's Government in the Union of South Africa and the Belgian Government |
| 8 November 1937 |
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Exchange of Notes between South Africa and Germany amending the Commercial Agreement of December 21, 1936 |
| 30 September 1938 |
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Prolongation of the Commercial Agreement between South Africa and France signed on August 27, 1935 until June 30, 1939 |
| 30 June 1939 |
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Exchange of Notes between France and the Union of South Africa, Prolonging until December 31, 1939 and thereafter for 6-Monthly Periods the Agreement for Commercial Relations of August 27, 1935 |
| 19 August 1939 |
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Agreement between South Africa and Germany concerning Commerce - Payments |
| 26 October 1945 |
26 October 1945 |
Agreement in connection with the establishment of Civil Air Services between the Union of South Africa and the United Kingdom plus Annex |
| 20 November 1945 |
24 November 1945 |
Exchange of Notes providing for the further suspension until 31:03:1946, of the 10% preference on fresh Hake, which is Guaranteed to the Union under the Trade Agreement concluded at Ottawa on 20:08:1932 |
| 2 August 1946 |
1 August 1946 |
Exchange of Notes between South Africa and Southern Rhodesia Amending the Trade Agreement of 13:02:1935 and 18:02:1935 |
| 4 September 1946 |
1 September 1946 |
Exchange of Notes Agreeing to the re-imposition as from 01:09:1946, of the 10% preference on Fresh Hake and Crawfish which is Guaranteed to the Union under the Trade Agreement of 20:08:1932 |
| 10 September 1946 |
1 September 1946 |
Agreement for the regulation of the exchange of telegraph money orders between St Helena and South Africa. |
| 14 October 1946 |
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Exchange of Notes between South Africa and Denmark regarding Release of Funds and Property held by Custodian of Enemy Property on behalf of Danish Citizens |
| 13 December 1946 |
1 July 1946 |
Convention between South Africa and the United States of America concerning Double Taxation - Income Tax |
| 4 July 1947 |
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Exchange of Letters between Belgium and the Union of South Africa constituting an Agreement for the release of Assets |
| 22 July 1947 |
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Agreement between South Africa and the Netherlands regarding Air Traffic - Civil Aviation Routes and Services |
| 28 July 1948 |
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Exchange of Notes between South Africa and Greece regarding Release of Funds and Property held by Custodian of Enemy Property on behalf of Greek Citizens |
| 16 November 1949 |
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Exchange of Notes between the United States of America and the Union of South Africa constituting an Agreement relating to the Exchange of Official Publications |
| 14 July 1950 |
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Protocol between the United States of America and South Africa regarding Double Taxation on Taxes on Income |
| 14 July 1950 |
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Protocol between the United States of America and South Africa regarding Double Taxation on Taxes on Estates of Deceased Persons |
| 5 November 1954 |
17 March 1955 |
Protocol amending the Double Taxation Agreement with respect to Taxes of 14 October 1946 |
| 22 December 1954 |
17 March 1955 |
Agreement amending the Agreement of 14 October 1946 regarding Estate Duty |
| 30 October 1959 |
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Agreement between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of South Africa, with Rhodesia and Nyasaland, amending the Agreement for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with respect to Taxes on Income |
| 7 December 1959 |
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Agreement for the Avoidance of Double Taxation with respect to Taxes on Income in the Union of South Africa, and in Kenya, Tanganyika, Uganda and Zanzibar |
| 6 August 1960 |
5 October 1960 |
Exchange of Notes between the United Kingdom and South Africa amending and extending the Agreement for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with respect to Taxes on Income signed at London on 14 October 1946 to embrace the Governments of Cyprus, The Gambia, Grenada, Mauritius, Seychelles, Sierra Leone and Trinidad and Tobago |
| 27 August 1960 |
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Exchange of Notes amending the Air Services Agreement between Rhodesia & Nyasaland and South Africa of 12:04:1956 & 30:05:1956 |
| 19 October 1960 |
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Exchange of Notes Amending the Air Services Agreement between Rhodesia and Nyasaland and South Africa of 12:04:1956 and 30:05:1956 |
| 19 October 1960 |
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Exchange of Notes constituting an Agreement amending the Air Services Agreement of 12:04:1956 and 30:05:1956 concerning the Federation of Rhodesia and Nyasaland - South Africa. |
| 19 October 1960 |
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Exchange of Notes amending the Air Services Agreement between Rhodesia and Nyasaland and South Africa of 12:04:1956 and 30:05:1956. |
| 8 August 1962 |
19 December 1962 |
Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of South Africa extending to South West Africa the Convention for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with respect to Taxes on Income, signed at Cape Town on May 28, 1962 |
| 15 November 1967 |
15 November 1967 |
Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of South Africa concerning Reciprocal Customs Privileges for Consular Officers and Employees |