Why is the side hustle becoming a necessity for younger workers?
The traditional concept of a single, stable job providing lifelong economic security is rapidly eroding for the modern workforce. For a growing segment of employees, a standard monthly salary is no longer sufficient to cover daily essential expenses, build an emergency fund, or achieve long-term life milestones. This gap between earnings and the cost of living has transformed the 'side hustle'—a secondary business activity or part-time role—into a defining labor market trend of the 2020s.
While often portrayed as a way for young people to monetize their hobbies, the reality is frequently more pragmatic. For many, these additional activities are a direct response to intensifying economic pressures. The rise in prices for basic goods and housing, combined with the increasing difficulty of securing high-paying positions, has limited the capacity for many households to recover financially or plan for the future.
The shift from luxury to necessity
In previous decades, a second job might have been viewed as a way to fund discretionary spending or luxury items. Today, the motivation has shifted toward survival and risk mitigation. Workers are using supplementary income to bridge the gap between their base pay and the actual cost of maintaining a standard of living, effectively using side hustles as a buffer against inflation and economic volatility.
How are Gen Z and Millennials impacting this trend?
Gen Z and Millennials are at the forefront of this movement, frequently seeking ways to bolster their income even when their primary employment offers a degree of stability. According to a study conducted in July by Goldman Sachs Asset Management and Escalent in the United States, more than 60% of respondents had engaged in work outside of their primary profession, largely driven by necessity.
The data reveals a stark disconnect between employment and financial wellness. While 60% are working extra, only 27% of those surveyed stated that their salary is sufficient to cover their expenses without preventing them from improving their overall financial position. This suggests that while the workforce is active, the quality of income relative to the cost of living remains a critical issue.
Delayed financial milestones
The inability to save effectively is causing significant delays in life stages for these generations. The Goldman Sachs research indicates that 83% of Gen Z and 78% of Millennials have had to postpone major financial goals. The specific impacts vary by demographic:
- Millennials: 41% have delayed building emergency savings, and 30% have postponed goals related to home ownership.
- Gen Z: 35% have delayed emergency savings, and 34% have postponed housing-related objectives.
What does the data show regarding the UK market?
The trend is not confined to the United States; the United Kingdom shows similar patterns of diversifying income. According to estimates from IPSE, an association representing the self-employed, approximately 475,000 people in the UK were engaged in a side hustle in 2025, based on official employment statistics. This figure specifically tracks individuals who maintain a primary salaried role while simultaneously earning income through self-employment.
It is important to note that these figures may underrepresent the true scale of the phenomenon. The IPSE data excludes those who work a second salaried job or those who simply sell used goods. Furthermore, the UK's Trading Allowance allows individuals to earn up to £1,000 from small business activities without the requirement to declare it for tax purposes, meaning many micro-entrepreneurial activities remain off the official radar.
There is also evidence of increased financial activity among the youngest workers. Data from the UK tax authority, HMRC, shows an increase in the number of individuals under the age of 25 submitting tax returns between the 2020-2021 and 2023-2024 tax years. While this does not prove all filings are for side hustles, it aligns with the broader trend of increased self-employment among younger populations.
How are new employment models like 'overemployment' and 'portfolio careers' emerging?
The search for financial security is driving some workers toward more radical professional structures. One such trend is 'overemployment,' where individuals hold multiple full-time positions simultaneously to maximize their income. Another growing model is the 'portfolio career,' where workers combine a salaried role with various independent projects, content creation, or specialized freelance services.
The logic behind a portfolio career is diversification. By building a professional portfolio with multiple income streams, a worker reduces the risk that the loss of a single employer will result in a total loss of income. However, this model is not without its own set of challenges, including increased workloads, reduced leisure time, and the mental pressure of managing multiple professional identities.
The transition from side hustle to primary career
For some, the side hustle is not a permanent supplement but a stepping stone to complete professional independence. A notable example is Harlan Rappaport, who transitioned from an investment analyst in a financial institution to a full-time professional in email marketing. For individuals like Rappaport, the primary benefit is not just financial, but the autonomy to work remotely and manage personal time more effectively.
Despite the allure of freedom, this path carries inherent risks. Self-employment lacks the guaranteed income of traditional employment and requires significant expertise, a consistent client base, and the ability to navigate market fluctuations. The transition from a secondary activity to a primary career represents a high-stakes move from stability to entrepreneurship.
FAQ: Frequently asked questions
What is a side hustle?
A side hustle is a secondary job or a small business activity pursued in addition to one's main employment. While it can be a way to monetize a hobby, it is increasingly used by workers to supplement their primary income to meet rising living costs and financial obligations.
Why are Gen Z and Millennials doing side hustles more than older generations?
These generations face unique economic pressures, including higher housing costs and lower relative wage growth. Research shows that a vast majority of Gen Z and Millennials have had to delay major life goals, such as buying a home or saving for emergencies, due to insufficient primary salaries.
What is the difference between a side hustle and overemployment?
A side hustle typically refers to a secondary, often flexible or part-time activity used to supplement income. Overemployment refers to the practice of holding multiple full-time professional roles simultaneously to maximize earnings, often requiring high levels of time management and digital coordination.
What is a portfolio career?
A portfolio career is a professional model where an individual earns income from several different sources rather than a single employer. This might include a mix of part-time work, freelance projects, and independent consulting, creating a diversified "portfolio" of professional activities and income streams.
Is a side hustle a reliable way to achieve financial security?
While side hustles provide immediate cash flow and can act as a financial buffer, they do not replace the long-term security of traditional benefits. Relying on them requires managing extra work pressure and navigating the volatility and lack of guaranteed income inherent in self-employment.
Key takeaways
- Over 60% of US respondents in a recent study have engaged in secondary work due to necessity.
- 83% of Gen Z and 78% of Millennials have had to postpone significant financial goals.
- In the UK, an estimated 475,000 people maintained a side hustle alongside salaried work in 2025.
- The 'portfolio career' model is rising as a way to diversify income and mitigate employment risks.
The evolving landscape of professional security
The proliferation of the side hustle reflects a profound shift in how the modern workforce perceives stability. For many, the goal is no longer to find a single employer that provides everything, but to build a diversified set of income streams that offer resilience against economic shifts. Whether viewed as a path to entrepreneurial freedom or a necessary compromise to meet basic needs, the side hustle has fundamentally altered the relationship between workers and their primary employers. As traditional models continue to face pressure, the ability to manage multiple professional identities may become a standard requirement for economic survival.
