Paryushan in 2026 is:

• Śvetāmbara Paryushan: 7 September 2026 to 14 September 2026
• Samvatsari: 14 September 2026
• Digambar Das Lakṣhaṇ Parva: 15 September 2026 to 24 September 2026
• Kshamavani / forgiveness day: often 25 September 2026, depending on the local sangh and panchang. ( jainknowledge.com)

Exact dates can shift by a day or two based on the local Jain calendar. ( jainknowledge.com)