In most cases, a partnership or S corporation must pay estimated tax if it will file a composite return on behalf of nonresident partners or nonresident shareholders or if the partnership or S corporation will make an election to file under the SALT Parity Act (section 39-22-343, C.R.S.). Estimated payments are required if the total composite payment (section 39-22-601 (2.7)(d) or (5.5)(d), C.R.S.) or SALT Parity Act tax due will exceed $5,000 for the tax year.