Germany's labour force is shrinking, and faster than anyone predicted. By 2036, the net gap between retiring Baby Boomers and incoming young workers will reach 4.3 million. Just two years ago that figure was three million. A new study by the Institut der deutschen Wirtschaft (IW) lays out exactly how this happened, why the situation is deteriorating faster than expected, and what, if anything, can still be done about it.
The Baby Boomer generation, as defined in the IW study, covers those born between 1954 and 1969, years when West Germany's annual birth count consistently exceeded 1.1 million. The peak came in 1964, when 1.4 million babies were born, a figure that has never come close to being repeated. In total, the generation numbers more than 19 million people. Around five million have already passed the statutory retirement age of 67. The remaining 14.1 million are still in the workforce, for now.
By 2030, that number will fall to just 7.6 million Boomers still below retirement age, a drop of over 46 percent in just four years. By 2036, the last of the cohort will have crossed the threshold. The question is not whether this will happen, but whether Germany will be ready when it does.
The problem is not simply that a large generation is retiring. Every generation eventually retires. The crisis is in what, or rather who, comes next. On average, around 1.3 million Boomers will leave the workforce every year over the coming decade. The younger cohorts entering working age will number only around 800,000 annually. That is a net loss of roughly half a million potential workers per year, year after year, for a decade.
The cumulative effect is devastating. Germany's total labour force potential, which stood at approximately 55 million people in 2025, is projected to fall to around 51.2 million by 2036, a decline of nearly seven percent. By 2045, the IW expects the figure to drop further to 50.4 million, an overall reduction of 8.3 percent from today.
These are not abstract projections. They represent the nurses who won't be there, the engineers who won't fill the open roles, the skilled tradespeople who will not be replaced. For businesses already struggling to find staff, the coming decade will feel like trying to run uphill in a headwind.
What makes the IW's revised figures so alarming is the context in which they sit. Germany's population is not just ageing, it is already shrinking. In 2025, the country's total population fell by 110,000 people. For the first time in many years, immigration could not compensate for the gap between births and deaths: the natural deficit reached 350,000 in the same year. Adding to this bleak picture, 2025 also recorded the lowest number of births in the history of the Federal Republic.
The IW's population forecast, updated in 2026, now expects Germany's population to fall by 2.9 percent to around 81.1 million by 2045. Two years ago, the institute had predicted moderate growth to around 85 million by 2040. The policy shift on migration under the current federal government, combined with a weakened economic outlook, has significantly reduced expected immigration inflows.
For years, immigration served as the pressure valve that kept Germany's demographic numbers from looking even worse. That valve is closing fast. Net migration fell to just 235,000 in 2025, a 45 percent drop from 430,000 in 2024 and the lowest figure since 2020. Much of the decline traces back to the fading of the Ukrainian wartime surge, which peaked at close to a million net arrivals in 2022 and has since collapsed.
At the same time, Romania, Poland and Bulgaria, long reliable sources of working-age labour, all flipped to net negative in 2025, as narrowing income gaps with Germany reduced the pull to migrate. To rely on immigration as the primary answer to a 4.3 million worker shortfall, when the immigration numbers themselves are this fragile and this dependent on events Germany cannot control, is to build a plan on sand.
An obvious counter-argument to the labour shortage thesis is technology. Could automation, digitalisation and artificial intelligence not absorb the tasks that a shrinking workforce can no longer perform? The IW study addresses this question directly and its answer is cautious.
In theory, productivity growth driven by technological progress could compensate for a falling headcount. If each remaining worker produces significantly more output, the economic impact of having fewer workers might be softened. The IW's researchers note, however, that this has simply not happened.
The long-running trend of declining productivity growth rates that has been visible since the 1990s has continued, and the widespread adoption of AI has so far failed to produce a noticeable acceleration. One explanation, they suggest, is that AI replaces certain tasks but simultaneously creates new demand for other kinds of human labour. The net effect, at least for now, is roughly neutral.
The consequences of an unmitigated labour shortage extend well beyond the balance sheets of individual firms. The IW economists make a broader point about the social contract. Retirees do not stop consuming. They still require healthcare, housing, food, transport and leisure. But with fewer people of working age to produce those goods and services, the economy's capacity to meet that demand shrinks.
The result is a combination of constrained consumption and intensifying distributional conflict, arguments over who gets what from a smaller pie. The pension system itself is under structural pressure. Germany's statutory pension is funded on a pay-as-you-go basis, meaning today's workers pay for today's retirees.
With fewer workers and more pensioners, either contributions must rise, benefits must fall, or retirement ages must increase, or some combination of all three. The demographic trend itself will tend to keep the contribution burden high, which then reduces the financial incentive for workers to extend their hours or careers.
Researchers identifies two primary levers. The first is skilled immigration. Germany's legal framework for attracting international workers is, according to the study, broadly adequate. The bottlenecks lie elsewhere: visa processing times, the recognition of foreign qualifications and overstretched immigration authorities all create friction.
Notably, staffing agencies, which arguably have the most direct expertise in labour recruitment, are currently prohibited from recruiting from non-EU countries. The researchers flag this as an unnecessary constraint.
The second lever is expanding working hours among those already employed. Germany already has a relatively high rate of labour market participation compared to international peers. But it has an unusually low average of hours worked per employed person. The researchers argue this is where the greater untapped potential lies.
The challenge is incentive: many full-time workers say they would consider working longer hours if taxes and social contributions were lower. The demographic crisis, by pushing up pension contributions, tends to make that trade-off harder rather than easier.
Raising the retirement age is another option, but the IW study contains a sobering observation about timing. The 2007 parliamentary decision to raise the statutory retirement age from 65 to 67 was implemented over a period of more than 20 years. Measures of that kind require lead times that Germany no longer has for the immediate crisis.
The current legislative term, the IW concludes, is Germany's last realistic window to put meaningful measures in place before the Boomer retirement wave reaches its peak. The researchers call for a "demographic check" to be applied to all existing and planned legislation, a requirement to weigh any adverse effects on labour supply against a law's intended benefits.
The language of "demographic change" has long been a comfortable abstraction in German political debate, something on the horizon, something to be managed in due course. Deschermeier and Schäfer want to dismantle that comfort. Germany, they write plainly, is not facing demographic change. It is already in the middle of it. The question now is whether policy will move fast enough to matter.
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