(1) An individual shall be considered unemployed for any week during which he or she performs no services and for which remuneration is not payable to the individual, or for any week of less than full-time work if the remuneration payable to the individual is less than 1-1/2 times his or her weekly benefit rate, except that for payable weeks of benefits beginning after the effective date of the amendatory act that added section 15a and before October 1, 2015, an individual is considered unemployed for any week or less of full-time work if the remuneration payable to the individual is less than 1-3/5 times his or her weekly benefit rate. However, any loss of remuneration incurred by an individual during any week resulting from any cause other than the failure of the individual's employing unit to furnish full-time, regular employment shall be included as remuneration earned for purposes of this section and section 27(c). The total amount of remuneration lost shall be determined pursuant to regulations prescribed by the unemployment agency. For the purposes of this act, an individual's weekly benefit rate means the weekly benefit rate determined pursuant to section 27(b).

    (2) All amounts paid to a claimant by an employing unit or former employing unit for a vacation or a holiday, and amounts paid in the form of retroactive pay, pay in lieu of notice, severance payments, salary continuation, or other remuneration intended by the employing unit as continuing wages or other monetary consideration as the result of the separation, excluding SUB payments as described in section 44, shall be considered remuneration in determining whether an individual is unemployed under this section and also in determining his or her benefit payments under section 27(c), for the period designated by the contract or agreement providing for the payment, or if there is no contractual specification of the period to which payments shall be allocated, then for the period designated by the employing unit or former employing unit. However, payments for a vacation or holiday, or the right to which has irrevocably vested, after 14 days following a vacation or holiday shall not be considered wages or remuneration within the meaning of this section.

    (3) An individual shall not be considered to be unemployed during any leave of absence from work granted by an employer either at the request of the individual or pursuant to an agreement with the individual's duly authorized bargaining agent, or in accordance with law. An individual shall neither be considered not unemployed nor on a leave of absence solely because the individual elects to be laid off, pursuant to an option provided under a collective bargaining agreement or written employer plan that permits an election, if there is a temporary layoff because of lack of work and the employer has consented to the election. Notwithstanding any other provision of this act, with respect to claims for weeks of benefits beginning before April 1, 2021, an individual on a leave of absence because the individual self-isolated or self-quarantined in response to elevated risk from COVID-19 because he or she is immunocompromised, displayed a commonly recognized principal symptom of COVID-19 that was not otherwise associated with a known medical or physical condition of the individual, had contact in the last 14 days with an individual with a confirmed diagnosis of COVID-19, or needed to care for an individual with a confirmed diagnosis of COVID-19, may be considered to be unemployed unless the individual is already on sick leave or receives a disability benefit.