A by-election was held in the state electoral district of Coffs Harbour on 3 November 1990. The by-election was triggered by the resignation of Matt Singleton .[1]
| Date | Event | |
|---|---|---|
| 11 September 1990 | Matt Singleton resigned. | |
| 12 October 1990 | Writ of election issued by the Speaker of the Legislative Assembly and close of electoral rolls.[2] | |
| 18 October 1990 | Day of nomination | |
| 3 November 1990 | Polling day | |
| 23 November 1990 | Return of writ |