What is the new expiration date of my 90-day Non-B visa if I do a border run to Myanmar with a re-entry permit?

When you hold a 90-day Non-B visa and leave Thailand for a border run to Myanmar with a re-entry permit, your visa will typically be reactivated for another 90 days upon re-entry. If your current visa ends on April 27, the new ending date after your border run will be approximately 90 days from your date of re-entry.