Elimination of the customs duties on originating goods will be carried out in accordance with the KSFTA's Tariff Elimination Schedule set out in Annex 3A. Under KSFTA, 75% of Singapore's domestic exports to South Korea are enjoying immediate tariff elimination, amounting to S$3 billion. Other goods will have their tariffs reduced over five to ten years from the date that the KSFTA has been in force.

An agreement by the Parties to accelerate the elimination of customs duties on an originating good or to include a good in the Tariff Elimination Schedule shall supersede any duty rate or staging category determined pursuant to their Tariff Elimination Schedules for such good, shall be treated as an amendment to Annex 3A. It shall enter into force in accordance with the procedure under KSFTA's Article 22.4.