On 27 June 2007, to commemorate 40 years of currency agreement with Brunei, a commemorative S$20 note was launched; the back is identical to the Bruneian $20 note launched simultaneously.
For at fejre 40-års valutaaftale med Brunei blev der den 27. juni 2007 lanceret en S$20 jubilæums-seddel, hvor bagsiden var identisk med den bruneiske 20-dollar seddel.