Can a Gift or GST Tax payment be made through Official Payments Corporation?
No. The system can only accept 1040 Balance Due, Prior Tax Year and Installment Agreement payments; 1040ES Estimated payments; 4868 Extension payments; Advance Payment of a Determined Deficiency payments and Trust Fund Recovery Penalty payments (for both Prior Tax Periods and for Installment Agreements). Payments for 709, Gift or GST Tax, cannot be accepted.