For 2019 tax returns the official FTA exchange rates are:
Income | Fortune | ||
USD | 1 = | CHF 0.99365558 | CHF 0.968374 |
EUR | 1 = | CHF 1.11247283 | CHF 1.087 |
GBP | 1 = | CHF 1.26829753 | CHF 1.282822 |
Foreign exchange rates are available here.
Average monthly exchange rates are available herei.
Daily exchange rates supplied by the customs service are available here.