Thailand Is Shrinking. What Does This Mean For You And Your Business?

A practical guide for SME owners operating in Thailand

Thailand’s population stood at 65,809,011 as of 31 December 2025, according to the Central Registration Office under the Department of Provincial Administration. That is a drop of approximately 142,199 people from 2024.

That may sound like a small number. It is not.

Thailand recorded 462,240 births against 571,646 deaths in 2024, continuing a four-year trend where deaths outnumber births. Thailand’s Total Fertility Rate has dropped to 1.0, lower than Japan’s 1.2, placing it among ultra-low fertility countries like South Korea and Singapore.

Demographic projections suggest the population could shrink to 40 million within 50 years, effectively losing approximately one million people every two years.

This is not a future problem. The effects are already here, and SMEs are feeling them first.

What is actually happening

Thailand is not just losing population. It is ageing out of its workforce.

Thailand officially became a “fully aged society” in 2024, with elderly citizens accounting for 20.69% of the total population.

The working-age population is expected to decline from 43.2 million in 2020 to 36.5 million in 2040. The ratio of working-age to senior people is projected to drop from 3.6 in 2020 to 1.8 in 2040.

Fewer working-age people means fewer staff available to hire. It also means fewer customers with money to spend, and a government that is under growing financial pressure.

A note on scope

This article is not about whether Thailand should have more children. That is a policy conversation for governments, economists, and sociologists. This article is about something more immediate: the demographic shift is already here, the numbers are confirmed, and businesses need to respond to the reality in front of them. The focus here is entirely practical. What does this mean for how you run your business, hire your staff, and serve your customers?

The five problems SMEs need to understand now

1. Hiring is going to get harder and more expensive

An aging society means fewer working people to support a larger base of older people. This leads to a shortage of qualified workers, making it more difficult for businesses to fill in-demand roles. An economy that cannot fill in-demand occupations faces declining productivity, higher labour costs, delayed business expansion and reduced international competitiveness.

For SMEs, this is already showing up in recruitment. Positions that used to fill quickly now sit open for months. Workers have more options. Wage expectations are rising.

Labour shortages will worsen and impact labour-intensive industries, especially in the agricultural and service sectors, such as hotels and restaurants, and construction businesses.

If your business depends on a steady supply of affordable labour, this model is under pressure. Plan for higher staff costs. Plan for higher turnover. Plan for the possibility that the person you train today will be gone within a year.

2. Your customer base is changing shape

A shrinking and ageing population changes who is buying and what they are buying.  This is a ley factor and changes everything!!

There are fewer young families. There are more older adults. Older adults spend differently. They prioritise health, convenience, and comfort. They are less interested in volume and more interested in quality. They are often digitally capable but prefer clear, simple communication.

If your product or service was designed for young families or working-age adults in their 30s, you may be selling to a market that is getting smaller every year. This is not speculation. The numbers confirm it.

3. Domestic demand will slow

This shrinking workforce is dragging down the economy by causing labour shortages, reducing consumer demand, slowing GDP growth, and diminishing the country’s appeal for foreign investment.

GDP growth that once averaged 7% has fallen to 5%, then 3%, and most recently to just 2%.

Slower GDP growth means slower business growth across the board. SMEs that rely entirely on domestic Thai consumers need to think carefully about diversification. Sectors likely to hold up better include healthcare services, elder care products, property maintenance, food delivery, and anything that serves an older, wealthier demographic.

4. Operating costs will increase

Fewer workers mean less tax revenue, weakening public finances. A government under fiscal pressure eventually passes those pressures on: through higher VAT, reduced subsidies, cuts to services, or increased compliance requirements on businesses.

SMEs should expect their operating environment to become more expensive over the next decade. You need to build this into your financial planning now.

5. Investment and talent will concentrate in fewer places

Bangkok already dominates. Bangkok remains the most densely populated province, with a population roughly double that of second-placed province Nakhon Ratchasima.

As the population shrinks, this concentration will increase. Talent, infrastructure, and investment will pull toward Bangkok and a small number of secondary cities. For SMEs operating in Chiang Mai, Chiang Rai, Phuket, or regional centres, the competition for skilled staff will get more intense, not less, because the pool of available workers in those areas is shrinking faster than the national average.

6. Productivity per person has to increase

The maths is straightforward. Fewer workers mean each worker needs to produce more. Most SMEs in Thailand are not structured for this. Processes are manual, systems are fragmented, and efficiency gains have never been a priority because labour was cheap and available.

That era is coming to an end.

Businesses that do not invest in tools, systems, and workflow design will find themselves unable to compete. This does not mean buying expensive software. It means taking a long hard look at how your work actually gets done and removing every step that does not need a human being. Accounting, scheduling, customer follow-up, inventory tracking, reporting: all of these can be partially or fully automated at a cost that is accessible to SMEs.

The businesses that will hold their ground are the ones that get more output from a smaller, better-managed team. This is not optional efficiency. It is a structural response to a structural problem.

What SMEs can do

This all sounds like doom and gloom, you are thinking what’s she on about. There will be plenty of workers as AI takes people jobs away. What I am saying is that with an aging population and drop in birthrate there will be less and less people available to work. This means you must start thinking ahead about how to optimise the work flow in your company. Deploy tools that save you time and frees up your team to do the things that can’t be automated. Here is where I think you should focus your efforts.

Reduce dependency on headcount. Every process that relies on a person doing a repetitive task should be reviewed. Automation, digital tools, and systems that allow fewer people to do more are no longer optional extras. They are competitive necessities.

Invest in retaining the staff you have. Older workers have formal and technical skills which they have accumulated through long service. The cost of losing an experienced employee and finding a replacement is rising. Retention is now a financial strategy, not just an HR nicety.

Look at migrant labour carefully and legally. Improvements to the migration system can help to fill shortages in low- and high-skill occupations. Thailand has mechanisms for hiring migrant workers. SMEs in labour-intensive sectors should understand those rules properly and use them. Operating outside the rules carries serious legal and financial risk.

Review your customer base. Who is your customer in five years? If you cannot answer that clearly, you need to look at this again. The population is not just shrinking. It is restructuring. Businesses that can serve an older, more health-conscious, more convenience-driven market have more room to grow than those that cannot.

Build financial resilience. Costs are going up. Demand may be unpredictable. SMEs that are running thin margins with no reserves are most exposed. If you have not built a cash buffer, start now.

What the numbers are really telling us

Thailand’s demographic decline is not a future policy debate. It is a current business environment. The population is older, smaller, and getting more expensive to serve and to employ.

The SMEs that navigate this well will be the ones that adapt their operations, their staffing model, and their customer strategy to the reality in front of them. The ones that do not, will find themselves competing for fewer workers and fewer customers in a market that no longer looks the way it did ten years ago.

The numbers are clear. The question is whether businesses are paying attention.

This article is produced by LAN Business Consulting Co., Ltd. For advisory support on workforce planning, business structuring, or compliance in Thailand, contact the LAN team in Chiang Mai.