SECTION 10. ADJUSTMENTS FOR

OVERWITHHOLDING AND UNDERWITHHOLDING AND REFUNDS.

.01 Adjustments for Overwithholding by Withholding Agent. A participating FFI may request a withholding agent to make an adjustment for amounts paid to the participating FFI on which the withholding agent has overwithheld (as defined in § 1.1474–2(a)(2)) under chapter 4 by applying either the reimbursement procedure or the set-off procedure described in this section 10.01. Nothing in this section 10 requires a withholding agent to apply these procedures.

(A) Reimbursement Procedure. A participating FFI may request a withholding agent to repay the participating FFI for any amount overwithheld under chapter 4, and for the withholding agent to reimburse itself under the reimbursement procedures under § 1.1474–2(a)(3), by making a request to the withholding agent prior to the earlier of the due date for filing Form 1042 and Form 1042–S (without regard to extensions), or the actual filing of Form 1042–S, for the calendar year of overwithholding. In such a case, the participating FFI must provide the withholding agent with sufficient informa

tion to determine the correct amount of withholding and to correctly report the payment as required under § 1.1474– 1(d)(4). See section 4.02 of this agreement for the circumstances in which a withholding agent may withhold on behalf of the participating FFI with respect to its account holders or payees.

(B) Set-off Procedure. A participating FFI may request a withholding agent repay the participating FFI by applying the amount overwithheld under chapter 4 against any amount which otherwise would be required to be withheld under chapter 3 or 4 from income paid by the withholding agent to the participating FFI under the set-off procedures of § 1.1474– 2(a)(4). A participating FFI must make the request before the earlier of the due date for filing Form 1042–S (without regard to extensions), or the actual filing of Form 1042–S, for the calendar year of overwithholding.

.02 Adjustments for Overwithholding by Participating FFI. A participating FFI may make an adjustment for amounts paid to its account holders and payees for which it has overwithheld tax under chapter 4 (as defined in § 1.1474–2(a)) by applying either the reimbursement procedures or the set-off procedures described in § 1.1474–2(a)(3) or (4), respectively.

.03 Repayment of Backup Withholding. If a participating FFI erroneously withholds (as defined in § 31.6413(a)–3) an amount under section 3406 from an account holder or payee, such participating FFI may refund to such person the amount erroneously withheld as provided in § 31.6413(a)–3.

.04 Collective Credit or Refund Proce- dures for Overpayments. If there has been an overpayment of tax with respect to an account holder or a payee of a participating FFI resulting from tax withheld under chapter 4 on a payment made to such account holder or payee during a calendar year, and the amount withheld has not been recovered under the reimbursement or set-off procedures described under section 10.01 or 10.02 of this agreement, the participating FFI may request a credit or refund of the amount of tax overwithheld to the extent permitted under § 1.1471– 4(h). The participating FFI must follow the procedures set forth under § 1.1471– 4(h)(4) to request the credit or refund on

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behalf of its account holders. No credit or refund will be allowed after the expiration of the statutory period of limitations for refunds under section 6511 with regard to the account holder or payee for whom the refund or credit is sought.

.05 Adjustments for Underwithholding. If a participating FFI knows that an amount should have been withheld under chapter 4 from a previous payment to an account holder or a payee but was not withheld, the participating FFI may either withhold from future payments made pursuant to chapter 3 or chapter 4 to the same account holder or payee or satisfy the tax from property that it holds in custody for such person or property of such person over which it has control. The additional withholding or satisfaction of the tax owed may only be made before the due date of Form 1042 (without regard to extensions) for the calendar year in which the underwithholding occurred. A participating FFI’s responsibilities will be met under this section 10.05 if it informs the withholding agent from whom the participating FFI received the payment of the underwithholding, and the withholding agent satisfies the underwithholding.

.06 Underwithholding after Form 1042 Filed. If, after Form 1042 has been filed for a calendar year (or the due date for filing Form 1042 if no Form 1042 was filed), a participating FFI or the IRS determines that the participating FFI has underwithheld tax for such year, the participating FFI must file an amended Form 1042 (or original Form 1042 if no Form 1042 was filed) to report and pay the underwithheld tax. A participating FFI must pay the underwithheld tax, the interest due on the underwithheld tax, and any applicable penalties at the time of filing such amended (or original) Form 1042. If a participating FFI fails to file a return (if required under section 6.06 of this agreement or this section 10.06), the IRS will make such return under section 6020 and assess such tax under the procedures set forth in the Code.