| 14 March 1908 |
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Declaration between the United Kingdom and Paraguay amending the Treaty of Commerce of October 16, 1884 |
| 12 September 1908 |
17 July 1911 |
Treaty between the United Kingdom and Paraguay for the mutual surrender of Fugitive Criminals |
| 16 July 1913 |
16 July 1913 |
Agreement between the United Kingdom and Paraguay relating to Extradition between certain British Protectorates and Paraguay (Supplementary to the Extradition Treaty of September 12, 1908) |
| 16 February 1927 |
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Exchange of Notes prolonging operation of Treaty of Friendship, Commerce and Navigation of October 16, 1884 for one year from February 25, 1927 and agreeing to abrogation of Article 8 |
| 3 January 1928 |
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Exchange of Notes between the United Kingdom and Paraguay concerning extension of Extradition Treaty of 12 September 1908 to British Mandated Territories |
| 16 February 1928 |
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Exchange of Notes between the United Kingdom and Paraguay prolonging operation of Treaty of Friendship, Commerce and Navigation of October 16, 1884 for further period of one year from February 25, 1928 with modifications agreed to in Exchange of Notes of February 16/22, 1927 |
| 16 July 1928 |
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Convention between His Majesty's Government in the United Kingdom and the Paraguayan Government respecting Commercial Travellers |
| 18 February 1929 |
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Exchange of Notes between the United Kingdom and Paraguay prolonging operation of Treaty of Friendship, Commerce and Navigation of October 16, 1884, for further period of one year from February 25, 1929 |
| 11 March 1937 |
16 April 1937 |
Exchange of Notes between the Government of the United Kingdom and Paraguay on the Extension of Agreement of 16 July 1913 and Treaty of 12 September 1908 concerning Extradition to the British Solomon Islands |
| 26 May 1953 |
1 July 1953 |
Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of Paraguay prolonging the Trade and Payments Agreement of the 3rd of April, 1950. |
| 10 June 1954 |
30 June 1954 |
Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of Paraguay prolonging the Trade and Payments Agreement of the 3rd of April, 1950. |
| 28 June 1955 |
29 June 1955 |
Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of Paraguay prolonging the Trade and Payments Agreement of the 3rd of April, 1950 |
| 31 August 1955 |
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Trade and Payments Agreement Prolonged by an Exchange of Notes of August 31 / September 3, 1955 until November 30, 1955. |
| 21 November 1955 |
28 June 1956 |
Agreement between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of Paraguay on Trade Payments |
| 1 April 1957 |
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Extension of Agreement between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of Paraguay on Trade Payments, of 21 November 1955, to various territories. |
| 26 June 1961 |
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Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of Paraguay prolonging the Agreement on Trade and Payments signed at Asuncion on November 21, 1955. |
| 25 August 1961 |
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Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of Paraguay prolonging the Agreement on Trade and Payments signed at Asuncion on November 21, 1955. |
| 27 November 1961 |
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Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of Paraguay prolonging with certain amendments the Agreement on Trade and Payments signed at Asuncion on November 21, 1955 |
| 27 October 1966 |
27 November 1966 |
Exchanges of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of Paraguay concerning the Abolition of Visas |
| 23 November 1966 |
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Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of Paraguay further prolonging the Agreement on Trade and Payments signed at Asuncion on 21 November 1955 |
| 19 January 1967 |
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Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of Paraguay further prolonging the Agreement on Trade and Payments signed at Asuncion on November 21, 1955. |
| 21 March 1967 |
21 March 1967 |
Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of Paraguay temporarily prolonging the Agreement on Trade and Payments signed at Asuncion on 21 November 1955 |
| 13 September 1967 |
13 September 1967 |
Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of Paraguay temporarily prolonging the Agreement on Trade and Payments signed at Asuncion on 21 November 1955 |
| 15 March 1968 |
18 March 1968 |
Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of Paraguay temporarily prolonging the Agreement on Trade and Payments signed at Asuncion on 21 November 1955 |
| 22 July 1968 |
3 December 1968 |
Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of Paraguay amending the Agreement of 27 October 1966 concerning the Abolition of Visas |
| 23 September 1968 |
27 September 1968 |
Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of Paraguay temporarily prolonging the Agreement on Trade and Payments signed at Asuncion on 21 November 1955 |
| 31 March 1969 |
11 April 1969 |
Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of Paraguay temporarily prolonging the Agreement on Trade and Payments signed at Asuncion on 21 November 1955 |
| 27 September 1969 |
9 October 1969 |
Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of Paraguay further prolonging the Agreement on Trade and Payments signed at Asuncion on 21 November 1955 |