(730 ILCS 5/5-4.5-100)

Sec. 5-4.5-100. CALCULATION OF TERM OF IMPRISONMENT.

(a) COMMENCEMENT. A sentence of imprisonment shall commence on the date on which the offender is received by the Department or the institution at which the sentence is to be served.

(b) CREDIT; TIME IN CUSTODY; SAME CHARGE. Except as set forth in subsection (e), the offender shall be given credit on the determinate sentence or maximum term and the minimum period of imprisonment for the number of days spent in custody as a result of the offense for which the sentence was imposed. The Department shall calculate the credit at the rate specified in Section 3-6-3 (730 ILCS 5/3-6-3). The trial court shall give credit to the defendant for time spent in home detention on the same sentencing terms as incarceration as provided in Section 5-8A-3 (730 ILCS 5/5-8A-3). Home detention for purposes of credit includes restrictions on liberty such as curfews restricting movement for 12 hours or more per day and electronic monitoring that restricts travel or movement. Electronic monitoring is not required for home detention to be considered custodial for purposes of sentencing credit. The trial court may give credit to the defendant for the number of days spent confined for psychiatric or substance abuse treatment prior to judgment, if the court finds that the detention or confinement was custodial.

(c) CREDIT; TIME IN CUSTODY; FORMER CHARGE. An offender arrested on one charge and prosecuted on another charge for conduct that occurred prior to his or her arrest shall be given credit on the determinate sentence or maximum term and the minimum term of imprisonment for time spent in custody under the former charge not credited against another sentence.

(c-5) CREDIT; PROGRAMMING. The trial court shall give the defendant credit for successfully completing county programming while in custody prior to imposition of sentence at the rate specified in Section 3-6-3 (730 ILCS 5/3-6-3). For the purposes of this subsection, "custody" includes time spent in home detention.

(d) (Blank).

(e) NO CREDIT; REVOCATION OF PAROLE, MANDATORY SUPERVISED RELEASE, OR PROBATION. An offender charged with the commission of an offense committed while on parole, mandatory supervised release, or probation shall not be given credit for time spent in custody under subsection (b) for that offense for any time spent in custody as a result of a revocation of parole, mandatory supervised release, or probation where such revocation is based on a sentence imposed for a previous conviction, regardless of the facts upon which the revocation of parole, mandatory supervised release, or probation is based, unless both the State and the defendant agree that the time served for a violation of mandatory supervised release, parole, or probation shall be credited towards the sentence for the current offense.

(Source: P.A. 101-652, eff. 7-1-21.)