Does a teacher in Thailand, who is a foreigner, get any kind of benefits or retirement plan? If so, what kind of deal is it?

From working at schools in Thailand that is. I know that the Thai people who teach get retirement plans, but i am not sure about foreigners.

so, everyone works here but has no idea?

Are you in the Thai Social Security system through work?

If you are, take a look at their website and you'll see all the things they offer, including retirement benefits.

It's not a lot, but it does exist. A far better benefit offered is the health plan.

Not everyone works here. (Not even all the employed ones.)

Guess it also depends on whether it's a government school or private school....and the contract they have with you.

Pretty much every worker will pay into Social security and there is a benefit on retirement if you've contirbuted into it for a minimum time - something like 10 years or more. Otherwise, many companies offer Provident fund for employees who typically contribute 3% of salary each month to the fund and become eligible for employer contributions of the same amount after a certain qualifying period of continous work for the same employer, for example 5 yrs in my case. Both are pretty small and if you are counting on these to pay for your retirement then you'll probably decide to keep working!

The best option are the RMF and LTF voluntary investment of up to a max. 15% of taxable income for each per year. This is especially beneficial for people in 30% income tax bracket or higher due to the tax deduction.

"Pretty much every worker will pay into Social security..."

Not really.

"...and there is a benefit on retirement if you've contirbuted into it for a minimum time - something like 10 years or more."

180 months.

"Otherwise, many companies offer Provident fund for employees..."

And some of those that do, don't provide it for foreign workers. I suppose that might depend on the type of company/work.