There are roughly 350,000 New Zealanders aged 40 to 44. Last year, they collectively received 2.9 million separate taxable income payments. That's not a typo. The data shows more than eight income sources per person in this age group.

This is the story of how we work now.

Someone in this bracket might have a salary from their main job. Rental income from an investment property. Dividends from shares. A side gig consulting. Maybe a small business they run on weekends. Each one shows up as a separate income source in the tax data. (Source: Stats NZ, taxable-income-sources)

The number has exploded. In 2020, people aged 40-44 had 2.6 million income sources. Four years later: 2.9 million. That's an extra 317,000 income streams for a group whose population barely changed.

This isn't just about the entrepreneurial class. It's about survival. When wages don't keep up with mortgage rates and grocery bills, people find other ways to make money. The gig economy. Property investment. Portfolio income. The side hustle that becomes essential, not optional.

Look at the trajectory. From 2020 to 2021, income sources grew by 28,000. From 2021 to 2022: 53,000. From 2022 to 2023: 90,000. Then from 2023 to 2024: 147,000 new income sources in a single year. The acceleration is the story.

People in their early forties are at peak financial pressure. Mortgages. Kids. Aging parents. This is the demographic that can't afford to have just one income source anymore. So they don't.

The data doesn't tell us which income sources are big and which are small. A $50,000 salary counts the same as $500 in interest from a savings account. But the sheer volume tells us something: economic security increasingly means cobbling together multiple streams, not relying on one employer.

This group has watched their parents retire on a single pension after working one job for 40 years. They're living a completely different economic reality. Multiple income sources aren't a choice. They're the new baseline for staying afloat.