For Varshitap related to the 2026 Parna (completion):

• Varshitap Parna (Paarna) in 2026:

Traditional rule (followed in most Jain traditions):

• Varshitap starts: Chaitra Shukla 8 (of the previous year)
• Parna is done: Next year on Vaishakh Shukla 3 (Akshay Tritiya)

So for those whose Varshitap is aligned with the standard tradition, the key 2026 date you need for schedule is the Parna on 20 April 2026. Exact parna timing (when to actually do the bhojan) should always be taken from your local Jain Panchang / Guru because it depends on sunrise and tithi at your location.

You can see the detailed note here