Can my spouse apply for a Thailand e-Visa independently if she runs her own restaurant?

Hey everyone! I booked my departure/return flights and a few hotels a couple of weeks ago for my Thailand trip (10 days) in November.

With the recent changes, Sri Lanka is no longer on the visa-exemption list.

I’ve already gone through the e-Visa guide and I’m good with providing all the required details/documents for myself. However, I’m a bit confused about my spouse’s situation. She doesn’t have a formal occupation/employer as she runs a restaurant.

If she can show the required 20,000 THB (or equivalent) in her bank account continuously for the past 3 months, would she be eligible to apply for the visa on her own? Or would I still need to provide a sponsorship letter and upload our marriage certificate?

Would really appreciate it if anyone who has recently applied could share their experience. Thanks! 🙂