N.C. Gen. Stat. § 105-228.5
Gross premiums from business done in this State in the case of life insurance contracts, including supplemental contracts providing for disability benefits, accidental death benefits, or other special benefits that are not annuities, means all premiums collected in the calendar year, other than for contracts of reinsurance, for policies the premiums on which are paid by or credited to persons, firms, or corporations resident in this State, or in the case of group policies, for contracts of insurance covering persons resident within this State. The only deductions allowed shall be for premiums refunded on policies rescinded for fraud or other breach of contract and premiums that were paid in advance on life insurance contracts and subsequently refunded to the insured, premium payer, beneficiary or estate. Gross premiums shall be deemed to have been collected for the amounts as provided in the policy contracts for the time in force during the year, whether satisfied by cash payment, notes, loans, automatic premium loans, applied dividend, or by any other means except waiver of premiums by companies under a contract for waiver of premium in case of disability.
Gross premiums from business done in this State in the case of prepaid health plans means all capitation payments received by a prepaid health plan from the Department of Health and Human Services for the delivery of services to enrollees in the State Medicaid program or NC Health Choice program in the calendar year. Capitation payments refunded by a prepaid health plan to the State are the only allowable deductions.
Gross premiums from business done in this State in the case of an insurer of bail bonds means the amounts received by an insurer from a surety bondsman during the calendar year for bail bonds written on behalf of the insurer. An insurer is subject to the definitions of gross premiums under this section for gross premiums from transacting any other line of insurance business. For purposes of this paragraph, the terms "bail bonds," "insurer," and "surety bondsman" have the same meaning as defined in G.S. 58-71-1.
Gross premiums from business done in this State for all other health care plans and contracts of insurance, including contracts of insurance required to be carried by the Workers' Compensation Act, means all premiums written during the calendar year, or the equivalent thereof in the case of self-insurers under the Workers' Compensation Act, for contracts covering property or risks in this State, other than for contracts of reinsurance, whether the premiums are designated as premiums, deposits, premium deposits, policy fees, membership fees, or assessments. Gross premiums shall be deemed to have been written for the amounts as provided in the policy contracts, new and renewal, becoming effective during the year irrespective of the time or method of making payment or settlement for the premiums, and with no deduction for dividends whether returned in cash or allowed in payment or reduction of premiums or for additional insurance, and without any other deduction except for return of premiums, deposits, fees, or assessments for adjustment of policy rates or for cancellation or surrender of policies.
The Secretary may permit an insurance company or prepaid health plan to pay less than the required estimated payment when the insurer or prepaid health plan reasonably believes that the total estimated payments made for the current year will exceed the total anticipated tax liability for the year.
An underpayment or an overpayment of an installment payment required by this subsection accrues interest in accordance with G.S. 105-241.21. An overpayment of tax shall be credited to the taxpayer and applied against the taxes imposed upon the taxpayer under this Article.
N.C. Gen. Stat. § 105-228.5