Just back from a border bounce at Mae Sai.

In short, no problems whatsoever.

 

In detail…

 

I have U.K. passport

I have an existing multi-entry tourist visa.

 

Arrived at Mai Sai about 12pm.

Stamped out of Thai side.

Walk to Myanmar side.

Paid 500baht for entry.

Got a day pass for shopping and left my passport at Myanmar immigration (you could go straight back instead).

Walked around the market and brought some cheap booze.

Back to Myanmar immigration and collected passport.

Walk back to Thai immigration.

Completed TM6 arrival form.

Handed TM6, passport and visa to Thai immigration.
Stamped back in until 28May.

Left Mai Sai about 1.30pm.

Only question was regarding district I’m staying in (TM6 doesn’t have enough room for full address).

 

Heard that needed vaccine certificates but these weren’t asked for on either side.

Hope this is useful.

Thanx for the update, looks like they finally stopped asking people for vax proof.. 
Glad it worked out,

Now get your lungs examined.

@Chalky0w why did you not try to pay USD$10?  The B500 is a 'scam'.   

Agree about the filthy air at the moment tomazbodner - straight back to the house with air purifiers whirring! Friend’s birthday soon otherwise I’d be in the South or another country!

 

Didn’t know could use dollars Finlaco. Not too worried about it - better than the $40 at Chiang Khong (and form filling, waiting for buses, etc.)

thank you for the report ???? 

23 hours ago, Finlaco said:

@Chalky0w why did you not try to pay USD$10?  The B500 is a 'scam'.   

For me, it's not worth the hassle to try and get $10 US to save 160 Baht.

 

Each to their own though.

Is this border crossing good for back to back visa exemption like the old days and consecutive VE entries but separated by months.