§ 51.5. Fee calculation.

¶(1) In general. For every fee year, the IRS will calculate a covered entity's total fee as described in this section. The IRS will determine a covered entity's total fee by applying, if applicable, the adjustment amount described in paragraph (e) of this section to the entity's allocated fee described in paragraph (d) of this section.

¶(2) Calculation of branded prescription drug sales. Each covered entity's allocated fee for any fee year is equal to an amount that bears the same ratio to the applicable amount as the covered entity's branded prescription drug sales taken into account during the sales year bears to the aggregate branded prescription drug sales of all covered entities taken into account during the sales year.

¶(3) Applicable amount. The applicable amounts for fee years are—

¶(4) Sales taken into account. A covered entity's branded prescription drug sales taken into account during any calendar year are as follows:

¶(1) For each sales year and for each covered entity, the IRS will calculate sales taken into account. The resulting number is the numerator of the ratio described in paragraph (d)(1) of this section.

¶(2) For each sales year, the IRS will calculate the aggregate branded prescription drug sales taken into account for all covered entities. The resulting number is the denominator of the ratio described in paragraph (d)(2) of this section.

¶(1) The numerator of which is the covered entity's branded prescription drug sales taken into account during the sales year (described in paragraph (c)(1) of this section); and

¶(2) The denominator of which is the aggregate branded prescription drug sales taken into account for all covered entities during the same year (described in paragraph (c)(2) of this section).

¶(1) In general. In addition to the allocated fee computed under paragraph (d) of this section, the IRS will also automatically calculate for each covered entity an adjustment amount. An adjustment amount reflects the difference between the allocated fee determined for the covered entity in the immediately preceding fee year, using data from the second calendar year preceding that fee year, and what the allocated fee would have been for that entity for the immediately preceding fee year using data from the calendar year immediately preceding that fee year. For example, for 2014, the adjustment amount for a covered entity will be the difference between the entity's 2013 allocated fee, using 2011 data, and what the 2013 allocated fee would have been using 2012 data. Although the adjustment reflects a revision of the prior year's fee based on data from the year immediately preceding the prior fee year, the adjustment is only taken into account by adding it to or subtracting it from the allocated fee computed under paragraph (d) of this section for the current fee year to arrive at the total fee for the current fee year. An adjustment amount is treated as a component of the current year's fee. For purposes of section 6601, any increase in the allocated fee computed under paragraph (d) of this section for the current fee year resulting from any adjustment amount, along with the remainder of the fee, is treated as a fee liability due on the due date for the current year's fee. For purposes of sections 6511 and 6611, any adjustment amount that decreases the allocated fee computed under paragraph (d) of this section for the current fee year is treated as a payment towards the current fee liability made on the due date of the current fee year.

¶(2) Amounts paid to a covered entity because of an adjustment amount. If a covered entity's adjustment amount reduces the fee computed under paragraph (d) of this section below zero and results in an amount due to the covered entity for the fee year, the IRS will pay this amount due to the covered entity. A covered entity does not file Form 843, Claim for Refund and Request for Abatement, to receive this amount owed to a covered entity.