| Ref No | Year | Description | Type | U.M. | F.U. | FDC |
|---|---|---|---|---|---|---|
| S18-1 | 2018 | Zodiac Series - Dog | 3v | 4.00 | 4.00 | 5.00 |
| S18-1a | 2018 | Zodiac Series - Dog (1v) | self-adhesive | 1.00 | 1.00 | - |
| S18-1C | 2018 | Zodiac Series - Dog | Collector's sheet | 25.00 | - | 28.00 |
| S18-2 | 2018 | Areas of Historical Significance | 4v | 4.50 | 4.50 | 5.50 |
| S18-3 | 2018 | Trades of Early Immigrants | 4v | 4.50 | 4.50 | 5.50 |
| S18-3C | 2018 | Trades of Early Immigrants | Collector's sheet | 48.00 | - | - |
| S18-4 | 2018 | Anniversaries | 3v | 5.50 | 5.50 | 6.50 |
| S18-5 | 2018 | Singapore-Russia Joint Issue | 2v | 3.50 | 3.50 | 4.50 |
| S18-5M | 2018 | Singapore-Russia Joint Issue | MS | 4.00 | 4.00 | 5.00 |
| S18-6 | 2018 | 125th Anniversary of Vanda Miss Joaquim | 4v | 4.50 | 4.50 | 5.50 |
| S18-6C | 2018 | 125th Anniversary of Vanda Miss Joaquim | Collector's sheet | 11.50 | 11.50 | - |
| S18-7 | 2018 | Singapore Native Gingers | 4v | 4.50 | 4.50 | 5.50 |
| S18-8 | 2018 | National Day - Evening in Singapore | 6v | 9.00 | 9.00 | 10.00 |
| S18-8M | 2018 | National Day - Evening in Singapore | MS | 3.00 | 3.00 | 4.00 |
| S18-9 | 2018 | 50th Anniversary of RSAF | 7v | 9.00 | 9.00 | 10.00 |
| S18-10 | 2018 | First Schools for Girls Education | 4v | 4.50 | 4.50 | 5.50 |
| S18-11 | 2018 | Nursery Rhymes | 8v | 6.00 | 6.00 | 7.00 |
| S18-11a | 2018 | Nursery Rhymes | 4v self-adhesive | 2.00 | 2.00 | - |
| S18-12 | 2018 | Festivals | 8v | 5.00 | 5.00 | 6.00 |
| S18-12a | 2018 | Festivals | 2v self-adhesive | 1.00 | 1.00 | - |