1.  Payment of estimated tax liability.  On or before the 15th day of each month, each person subject to the tax imposed by this chapter shall submit to the assessor a payment of an amount equal to 1/12 of the person's estimated tax liability for the entire current state fiscal year or facility fiscal year or, in the case of a facility taxed on the basis of a partial facility fiscal year after June 30, 2003, an amount equal to a fraction of the estimated liability in which the denominator is the number of months remaining in the facility fiscal year and the numerator is one. A person may estimate its tax liability for the current state fiscal year or facility fiscal year by applying the tax rates provided by section 2872 to the most recent state fiscal year or facility fiscal year for which a Medicaid cost report has been finally settled and is no longer open to audit adjustment or correction, as long as the fiscal year in question began no earlier than 3 years prior to the beginning of the current fiscal year; in the event that the information necessary to prepare this estimate is not available, an estimate may be prepared on the basis of the reconciliation return most recently submitted or, if the first such return has not yet been submitted, then on the basis of the revenues formally reported by the facility in accordance with generally accepted accounting principles. Regardless of the method used for preparing the estimate, the estimate may include adjustments to reflect changes in the number of licensed or certified beds or extraordinary changes in payment rates. Once a taxpayer has made its first monthly payment for a state fiscal year or facility fiscal year pursuant to this subsection, the monthly amount must remain fixed throughout the fiscal year unless the assessor authorizes a change. If the person's estimated annual tax liability as paid pursuant to this subsection does not equal the tax imposed on that person by section 2872, any adjustments necessary to reconcile the estimated tax with the correct tax amount must be made pursuant to subsection 2.  

2.  Reconciliation return required.  On or before October 15, 2003 and on or before the 15th day of the 4th month following the end of each facility fiscal year ending after October 15, 2003, each person subject in that state fiscal year or facility fiscal year to the tax imposed by this chapter shall submit a reconciliation return on a form prescribed and furnished by the assessor. The reconciliation return must account for any adjustments necessary to reconcile the annual tax for a prior state fiscal year or facility fiscal year estimated pursuant to subsection 1 with the person's correct tax liability, and the person shall submit with the reconciliation return payment of any amount due for the prior state fiscal year or facility fiscal year or portion of any prior state fiscal year or facility fiscal year. The taxpayer may also claim on the reconciliation return a refund or credit for any overpayment of tax. The determination of amounts due or overpaid is calculated by comparing the tax originally estimated and paid in the prior state fiscal year or facility fiscal year or years with the tax imposed by section 2872 on taxable revenues accrued for that period, together with any audit adjustments or corrections of which the person has knowledge on or before the 15th day of the month immediately preceding the due date of the return. The obligation to file a reconciliation return with respect to a particular state fiscal year or facility fiscal year continues until the relevant taxable revenues for that period have been finally determined and are no longer open to audit adjustment or correction and the person has reported those revenues on a reconciliation return.  

3.  Audit period to remain open; accrual of penalties and interest.  Notwithstanding any other provision of law, the tax imposed against a person by section 2872 for any fiscal year remains open to audit and further assessment by the assessor until completion of the audit of the Medicaid cost report or reports for the fiscal year. Any underestimates of tax liability reported and paid pursuant to subsection 1 are subject to an assessment of interest at the rate provided in section 186 from the date or dates of underpayment until payment is made, unless the estimated tax liability was calculated in compliance with the standards provided in subsection 1, in which case no interest may accrue prior to the date on which the reconciliation return for the year is due. Any amount of tax that is reported on a reconciliation return required by subsection 2 but not paid at the time the reconciliation return is filed is subject to the accrual of interest as provided by section 186, as well as to any applicable provisions of section 187‑B, including, without limitation, the penalty provided by section 187‑B, subsection 2 for failure to pay a tax.  

4.  Application of revenues.  Revenues derived by the tax imposed by this chapter must be credited to a General Fund suspense account. On the last day of each month, the State Controller shall make the following transfers: