4.3 Million Missing: What the Retirement Wave Means for You

If you've been trying to fill a position for months, the problem is probably not your job ad. Not your salary. Not your region. The problem is that the people you're looking for simply don't exist in those numbers anymore. The hiring pain almost every business is feeling right now is not a phase that passes once the economy picks up. It's arithmetic.

The numbers behind it: According to IW Köln (Schäfer/Deschermeier, 2026), more than 14.1 million baby boomers in Germany will reach the statutory retirement age by 2036. Standing against them: fewer than 9.8 million young people entering working age. Per year, that means around 1.3 million retire while roughly 800,000 follow – a net loss of about 500,000 potential workers. Every year. For a decade.

This is not a forecast that depends on an uncertain future. The people retiring in 2036 have already been born – and so have the ones supposed to replace them. The math is settled. The only open question is how your business deals with it.

The gap in numbers

Three figures are enough to grasp the scale:

• The working population shrinks by almost 7%. From 55 million in 2025 to around 51.2 million in 2036 – according to IW Köln (2026).
• The gap: 4.3 million workers by 2036. Also according to IW Köln (2026). Worth noting: two years ago, the institute still projected 3 million. The forecast wasn't softened – it was revised upwards.
• Immigration changes the pace, not the direction. The current population projection by Destatis, Germany's federal statistical office (December 2025), runs scenarios: depending on net immigration, the working-age population shrinks by 3.2 to 4.9 million people by 2035. Even in the most favorable scenario, it still shrinks.

One more Destatis figure to complete the picture: by 2035, one in four people in Germany will be 67 or older. In 2024, it was one in five.

The honest calculation: what does this mean per person?

Now the question that actually affects you as a business owner: what happens to the work when there are fewer people? Short answer: it doesn't disappear. The orders, the enquiries, the bookkeeping, the paperwork – all of it stays. It just gets spread across fewer shoulders.

How much more that would be per person can be calculated – and here we'll be straight with you: the following number is not from any study. It is our own model calculation based on the IW figures. Take the gap of 4.3 million missing workers (IW Köln, 2026) and set it against today's number of full-time workers (base: IAB working-hours accounts, 2026), and you arrive at a calculated extra demand of roughly 10% more work per remaining person – if today's total work volume is to be maintained. A 40-hour week would, on paper, become roughly 44 hours.

Will it play out exactly like that? Of course not – nobody legislates four extra hours. In practice, the pressure shows up differently: tasks left undone, longer delivery times, orders turned down, overtime that quietly creeps in. But the order of magnitude holds, and it answers one question very clearly: the gap is too big to close with "let's all try a bit harder".

What this means for a business with 10 to 50 people

Abstract millions are one thing. In the daily life of a small business, the retirement wave looks like this:

Positions stay open – longer than you plan for. When half a million potential workers disappear from the market every year, you're competing for a shrinking pool – against corporations that can pay more, and against the public sector. The days when a good job ad solved the problem are not coming back.

Knowledge retires. The colleague who is the only one who knows how the special cases in order processing work. The colleague who knows every customer by name and history. When people like that leave and nobody follows, you don't just lose capacity – you lose experience that's documented nowhere.

The people who stay carry more. Every unfilled position spreads its work across the rest of the team. With 15 employees, one open position is almost 7% of your workforce – and everyone carries that share. Over time, that leads to exactly what you need least: your best people burn out or leave. And the gap grows further.

The way out is not "hire more"

The reflex response to a staff shortage has always been: more recruiting. Better ads, referral bonuses, headhunters. That can work in individual cases – but as a strategy against the retirement wave, it fails on a simple problem: you cannot hire someone who doesn't exist. 4.3 million missing people cannot be recruited away. When your business wins someone, another business loses them – economy-wide, it's a zero-sum game with rising costs.

The other path doesn't start with the people – it starts with the work: automate the work away before it spreads across fewer shoulders. And the potential for that is bigger than most assume: according to the McKinsey Global Institute (May 2026), 59% of working hours in Germany are theoretically automatable with technologies that already exist today – giving Germany the largest automation potential of all European economies examined.

Here too, we stay honest: theoretically automatable does not mean you should – or could – automate 59% of your work. A large part of your business lives on people: consulting, craftsmanship, negotiation, leadership. But the part that doesn't need a human – typing data from A to B, sorting emails, assembling quotes from text blocks, matching invoices – is big enough in almost every business to free up several hours per week per person. That's exactly what digital employees are for: AI agents that take over recurring tasks inside your existing systems. What they realistically deliver today – and what they don't – is laid out soberly in our article AI agents for SMEs.

The decisive difference from recruiting: an agent that takes over your inbox sorting doesn't need to exist on the labor market. It gets built. It doesn't hand in its notice, and it doesn't retire in 2036.

The practical start: measure first, automate second

The mistake we see most often: starting somewhere, because some tool is making headlines. The better path is unspectacular – first find out where in your business the most time flows into recurring manual work, then start exactly there.

We offer two starting points for that:

1. Check yourself. In Find your time sinks you'll find the six most common time sinks with realistic hour ranges and a 3-question self-check. Costs you one coffee break and shows you where you stand.
2. Check together. In the Time Potential Analysis we go through your workflows with you: 45 minutes, free, no sales pitch. You leave with an honest assessment of which tasks in your business can be automated – and which can't.

And then: start small. One process, clearly scoped, implemented in weeks rather than months. Not because caution sounds nicer, but because one first working building block convinces more than any strategy slide – your team included.

The retirement wave has been rolling for years and will roll for another decade. You can't stop it. But you decide whether your business faces 2030 with the same manual workflows as today – just with fewer people to run them.

Does the retirement wave hit small businesses too – or mainly corporations?

Small businesses most of all. Corporations can compete for scarce workers with salaries, benefits and employer-branding budgets – a 20-person business usually can't. Add the math of small numbers: with 15 employees, a single unfilled position is almost 7% of your workforce, and a single retirement can walk out the door with decades of knowledge. Which is exactly why automation pays off disproportionately here: every hour an agent takes over relieves a small team far more noticeably than a large one.

Doesn't immigration solve the problem?

It softens it – but it doesn't reverse it. That's not an opinion; it's the result of the Destatis scenarios (December 2025): even with high net immigration of 350,000 people per year, Germany's working-age population shrinks by 3.2 million by 2035; with low immigration, by 4.9 million. Destatis itself puts it plainly: even high immigration cannot prevent the decline. Immigration is part of the answer – but a business built on it alone is planning with numbers no projection supports.

What can I actually do this week?

Three things, in this order: First, spend one week noting down (or having your team note down) which tasks keep being done by hand – don't estimate, write them down. Second, run through the self-check in the time-sinks article and roughly tally the hours. Third, if that adds up to more than five hours per week: book a Time Potential Analysis and bring the list. Then we'll talk about concrete tasks instead of demographics.