Side hustles
A comparison of service work, selling and audience-based income by startup cost, pay rate and time required.
Side Hustles
The number that matters is not what a side hustle pays per hour. It is what it pays per hour you actually worked, after the platform's cut, after fuel and materials, after the unpaid hours nobody bills for, and after the tax you will owe on it. Then compare it with what your day job pays for the same hour.
Put side hustles through that filter and the ranking inverts. The work everyone talks about — delivery, surveys, reselling — lands at 4 € to 7 € an hour. Freelance work sold directly to a client lands above 25 €. And an hour of paid overtime, or the raise you have not asked for, sits in between, at a better rate than most hustles and with none of the setup.
That is not an argument against earning more. It is an argument for picking a hustle the way you would pick any other investment: by the return, not by the story.
The headline rate is not your rate
Every hustle in this table is quoted the way it is advertised: a gross figure per paid hour. Four deductions turn that into something you can compare.
The same 500 € costs one person 19 hours a month and another 125. That gap is the whole decision.
Illustrative. Own model: net rate per worked hour after platform fees, direct costs, a 30% tax reserve and unpaid time.
| Hustle | Gross per paid hour | Direct costs | Unpaid time per paid hour | Net per worked hour |
|---|---|---|---|---|
| Freelance, direct client | 60 € | 6 € | 0.4 h | 27 € |
| Overtime at the day job | 30 € | 0 € | none | 21 € |
| Tutoring through a platform | 25 € | 5 € | 0.2 h | 12 € |
| Reselling used goods | 20 € | 4 € | 0.6 h | 7 € |
| Food delivery | 15 € | 5 € | 0.35 h | 5 € |
| Paid surveys and user tests | 10 € | 0 € | 0.6 h | 4 € |
The arithmetic behind each row is the same: gross minus direct costs, times 0.7 for the tax reserve, divided by one plus the unpaid hours. Freelance at 60 € an hour becomes 27 €. Surveys at 10 € an hour become 4 €, because two of every five hours go into screeners that pay nothing.
Freelancing wins for one structural reason: no platform takes a percentage of a client you found yourself. The moment a marketplace sits between you and the buyer, it takes a cut of the revenue and hands you the customer-service work for free.
Where a 25 € hour actually goes
Take the tutoring row and follow one hour of it. The lesson pays 25 €. The platform keeps 10%, travel and materials take 2.50 €, and a 30% reserve covers income tax and, in the US, self-employment tax. What is left is 14 € for the paid hour.
Then divide by the unpaid hours: writing to parents, scheduling, invoicing, the occasional cancellation you still had to travel to. At 0.2 unpaid hours per paid hour, the real rate is 12 €. Twenty percent of the job is invisible, and it is the part that never appears in the headline figure.
The tax reserve is the slice people forget, and it is the largest deduction after the platform.
Illustrative. Own model, not platform data. 30% reserve on the amount remaining after direct costs.
Your day job is the benchmark, and usually the winner
A salary of 48,000 € across 2,080 working hours is 23 € an hour, paid every month, with paid holidays, sick pay and no acquisition costs. That is the rate your hustle has to beat, and most of them do not.
Two moves beat a hustle outright. The first is overtime, if your contract pays it: an hour at 30 € is worth 21 € after tax, which is more than tutoring, reselling, delivery and surveys. Salaried and exempt employees often get nothing extra for extra hours, which is exactly why the second move matters.
The second is a raise. Five percent on 48,000 € is 2,400 € a year for zero additional hours. After tax it is roughly 1,680 €, the same as about 140 hours of tutoring at 12 € an hour. One conversation against 140 hours of evenings. If you have never asked, that conversation is the highest-paying side hustle available to you, and it comes with no platform fee.
Two American details change the arithmetic. Overtime pay is only guaranteed for non-exempt employees, so a salaried role can absorb extra hours at no extra pay — which leaves the raise as the only lever. And platform income arrives with nothing withheld: marketplaces report it, so a good year can produce a tax bill in April that no monthly budget saw coming. That is the argument for the separate 30% account, not as discipline but as the default.
Who should not start a side hustle
- Anyone carrying consumer debt above roughly 8% APR. A 4,000 € credit card balance at 19% costs about 760 € in interest in the first year. Clearing it is a guaranteed 19% return, and 760 € is 152 hours of delivery work at 5 € net. No hustle in the table competes with that, because none of them is guaranteed.
- Anyone whose day-job performance is at risk. The salary is the asset that funds everything else. Ten hours a week on top of a job you are already struggling to hold is a trade that can cost you the 23 € an hour to protect the 5 € one.
- Anyone who needs the money within a month. First payments arrive in two to six weeks on most platforms. Hustles are a slow fix for a fast problem, and the fast version of this problem has better answers.
- Anyone who will not count their hours. Without hours, revenue per hour is a feeling, and feelings are how people end up defending a 4 € an hour job as "basically passive".
- Anyone who wants a hobby. That is a legitimate reason to make things and sell them. Just do not load it with the expectation of replacing income, because then it is a job you are paying to do.
If you go ahead, run it in this order
Clear anything above roughly 8% APR
A guaranteed return from repayment beats a hoped-for return from a hustle, and it needs no customers.
Ask for the raise or take the overtime
140 hours of tutoring replaced by one conversation, at no hourly cost to you.
Track one week of real hours
Include the waiting, the admin, the screeners and the travel. Choose the hustle after that, not before.
Sell a skill to a direct client
Same hours, no platform cut, and the rate rises as your work gets better instead of staying at the marketplace average.
Reserve 30% of every payment
A separate account, the day the money lands. This is the difference between extra income and a tax bill you cannot pay.
Automate what is left into investments
Move it on payday. Money that stays in the current account gets spent, and then the hustle bought nothing.
What the honest version looks like after six months
Ten hours a week at 12 € net is about 520 € a month. Invested at 500 € a month and left alone at 7%, it becomes roughly 260,000 € after twenty years, and that is the reason to do this at all. The same ten hours at 5 € nets 217 € a month, becomes roughly 113,000 € over the same twenty years, and no amount of patience turns those evenings into a good deal.
So measure the thing you are actually selling, which is your time, at the price you are actually getting. Then decide whether the work is worth it. A side hustle with your name on it and no employer protections can be a fair trade. A hundred hours a month at 5 € an hour to avoid a conversation about your salary is not.
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