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Social Security costs a few hundred baht a month and covers pre-existing conditions. Private insurance costs thousands but gets you seen the same day. Here’s how the two compare on price, coverage, treatment quality, and waiting time.
If you are working in Thailand, chances are you are already in the Thailand Social Security system.
Then, there’s a big decision you have to make: “Should I buy additional private insurance, or should I just rely solely on Social Security?”
To help you make an informed decision, this guide compares all the key factors, including coverage, treatment quality, price, wait time, and more. It’s based on my personal experience using both Social Security and private insurance for many years.
Contents
Key Takeaways
- Social Security is much cheaper than private insurance, costing a maximum of THB875 per month.
- With Social Security, all health conditions, including pre-existing conditions, are covered.
- When it comes to treatment quality, waiting time, and convenience, private insurance is much better.
- Social Security only works at the one hospital you are registered with, and you can change it just once a year.
- Social Security never drops you or denies a claim, which matters most if you develop a serious condition.
- Many working expats keep both: Social Security comes out of your salary anyway, and private insurance buys you speed and choice.
Price
Winner: Social Security
At most, you pay THB875 per month with Social Security. That is 5 percent of your wage, counted against a wage ceiling of THB17,500 a month. Anything you earn above that ceiling is not charged.
In the case of Social Security section 39, it’s only THB432 per month.
While the health insurance premium depends on various factors, including age, coverage, deductible, co-insurance, and more, you should expect to pay at least THB2,000 a month for it.
In the case that you are over 60 years old, it can easily be over THB8,000 per month. You can see how these premiums sit against what treatment actually costs in our guide to the cost of healthcare in Thailand.
Coverage
Winner: Draw
One of the best things about Social Security is that it covers all sicknesses, including pre-existing conditions, which can’t be found in any private insurance plan.
You can simply walk into your social security hospital, see a doctor, and get treatment without having to pay anything for both hospitalization and outpatient treatment.
There is no co-insurance or a deductible.
However, in the case of hospitalization, you need to pay extra if you want to stay in a private room. If you want better medications, you may also need to pay out-of-pocket as well.
Social security also has limited coverage for maternity and check-ups.
On the other hand, while your pre-existing condition isn’t covered by health insurance, you get better coverage in almost everything else, including medications and hospitalization.
Depending on your plan, there is additional coverage including medical evacuation, vision, health check-ups, dental, and much more. Some plans also give you an additional allowance when hospitalized.
Area of Coverage
Winner: Private Insurance
Private insurance is a clear winner when it comes to the area of coverage. Depending on your plan, you can get covered throughout Thailand or even around the world.
On the other hand, you can only use Social Security in Thailand.
Treatment Quality
Winner: Private Insurance
Private insurance is also a clear winner in this regard. The treatment quality you receive in Thailand heavily depends on which hospital you visit.
In the case of a leading private hospital or a big public hospital, the treatment quality is usually better than in a normal hospital.
With private insurance, you can visit any hospital of your choice and have your insurance pay for it or make a claim later as long as it’s within your plan coverage.
When it comes to Social Security, you are limited to the hospitals you can go to.
In addition, here are additional factors that can play an important part in treatment quality:
- Doctor’s Expertise: With Social Security, you will need to visit a GP first. Most of them are those who recently graduated from medical school. With private insurance, you can see an experienced specialist right away.
- Medication: With Social Security, your medications are from Thailand, China, and India. With private insurance, they’re mainly from either Thailand, Europe, or North America. If you want a specific brand, you can usually buy it yourself at a pharmacy.
- Facility: Many hospitals have a separate department for Social Security patients. The facilities there are not as good as for normal patients.
- Consultation Length: Since Social Security doctors need to deal with hundreds of patients a day, they only have a few minutes to diagnose you.
It can simply be said that even if it’s the same hospital, especially for private hospitals, the quality of treatment for a Social Security patient isn’t as good as for a normal patient.
A workaround comes up often on the Thai expat forums. Some people pay out of pocket to see a specialist privately, get the diagnosis, and then take it back to their Social Security hospital for the actual treatment. Expats also point out that the system does little for preventative care, since you generally need a problem before anything happens.
Wait Time
Winner: Private Insurance
When using Social Security in Thailand, you need to wait at least a few hours to see a doctor. In case you need to see a specialist, depending on how urgent it is, it can take a week just to make an appointment.
I once had an ear problem. My Social Security hospital told me that I needed to wait a week to see a specialist. So, at that time, I decided to cancel the appointment and just visit an ENT clinic to get treatment right away.
On the other hand, with private insurance, the waiting time is almost nonexistent. You get treatment right away.
Pro tip: If you want to have less waiting time, visit your Social Security hospital in the evening. The queue will be much shorter at that time.
Convenience
Winner: Private Insurance
Since you can go to any hospital or clinic with private insurance, it’s much more convenient than Social Security.
With Social Security, you are limited to your chosen hospital only. In addition, you can only change hospitals once a year.
The change window runs from 16 December to 31 March each year. Miss it and you are stuck with your current hospital until the next one opens.
You do get to pick the hospital rather than having one assigned to you. In practice, expats in Bangkok report that the choice is narrower than it looks, because many of the better hospitals are already full on their Social Security quota and are not taking new registrations.
You are allowed to go to other hospitals only in emergency situations. If this is the case, there are limits on how much Social Security will pay you.
Denial of Coverage
Winner: Social Security
While the quality of treatment you get from Social Security might not be as good as that from private insurance, Social Security never denies your coverage.
Even if you suddenly have any serious conditions, such as cardiac disease or cancer, you can still contribute to Social Security and get treatment.
On the other hand, some bad insurance companies may kick you out of the plan when you are diagnosed with these diseases. So, if you want to buy private insurance, choose only a reputable company, or work through one of the insurance brokers in Thailand who can tell you which insurers actually pay out.
Should I Get Social Security or Private Health Insurance?
Here are some key points to help you decide whether you want to use Social Security or private health insurance.
- If you have been working in Thailand until your retirement and plan to live here for the rest of your life, it’s better to keep Social Security. At that time, private insurance might be too expensive.
- If you are working in Thailand and have a limited budget, you can visit your Social Security hospital first and experience the system yourself. This will help you decide whether or not you want to get private insurance.
- If you plan to live in Thailand temporarily or want to get access to quality treatment right away, you can just go with private insurance and ignore Social Security benefits.
Now, on to You
I hope that this article has helped you make a decision more easily on whether or not you want to buy private insurance if you already have Social Security in Thailand.
If you have any questions, please feel free to ask in the comment section below.
Related articles:
- Healthcare System in Thailand: A Guide for Expats
- The Complete Overview to Social Security in Thailand for Foreigners
- Health Insurance in Thailand: What You Need to Know as an Expat
Sources Cited
- Royal Gazette, Vol. 142, Part 81 Kor (12 December 2025): the ministerial regulation setting the Social Security wage base at THB1,650 to THB17,500 a month from 1 January 2026, which puts the maximum Section 33 contribution at THB875.
- Social Security Office, contributions and payment: the THB4,800 monthly base used to calculate the Section 39 contribution.
- Social Security Office, annual hospital change: confirmation that you may change your registered hospital once a year, between 16 December and 31 March.
Accuracy checked by Carsten Creutzburg
Carsten Creutzburg is a licensed insurance broker in Thailand with over a decade of experience helping expats arrange international health and life insurance, known for detailed side-by-side comparisons of major insurers.
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