| Ref No | Year | Description | Type | U.M. | F.U. | FDC |
|---|---|---|---|---|---|---|
| S81-1 | 1981 | 10th Anniversary of The Monetary Authority of Singapore | 3 v | 2.50 | 2.50 | 3.00 |
| S81-2 | 1981 | 10¢ overprinted on 4¢ Tiger Barb | 1 v | 0.30 | 0.30 | 2.00 |
| S81-3 | 1981 | Technical Training | 3 v | 3.50 | 2.80 | 4.00 |
| S81-4 | 1981 | Sports For All | 3 v | 5.00 | 5.00 | 5.00 |
| S81-5 | 1981 | International Year of Disabled Persons | 4 v | 4.00 | 3.00 | 3.80 |
| S81-6 | 1981 | Singapore Changi Airport | 5 v | 5.00 | 5.00 | 6.00 |
| S81-6M | 1981 | Singapore Changi Airport | MS | 5.50 | 6.00 | 10.00 |