An eligible pass-through entity may elect to pay an excise on its qualified income taxable in Massachusetts at a rate of 5 per cent. A qualified member of an electing eligible pass-through entity shall be allowed a refundable credit against the tax imposed under this chapter. The credit shall be available to qualified members in an amount proportionate to each qualified member's share of the tax due and paid under this chapter by the eligible pass-through entity multiplied by 0.9. The credit shall be available for the member's taxable year in which the electing eligible pass-through entity's taxable year ends.
Mass. Gen. Laws ch. 63D, § 2