1.2Filings by Incarcerated Individuals
A pleading or other document filed by an unrepresented individual who is incarcerated in prison or jail “must be deemed timely filed if it was deposited in the institution’s outgoing mail on or before the filing deadline. Proof of timely filing may include a receipt of mailing, a sworn statement setting forth the date of deposit and that postage has been prepaid, or other evidence (such as a postmark or date stamp) showing that the document was timely deposited and that postage was prepaid.” MCR 1.112.