Side hustle investing
Invest your side income instead of spending it, and see what it becomes.
Side hustle invested, after 15 years
After tax, $420 a month goes to work. Invested steadily, it becomes $133,124.
How this calculator works
The calculator sets aside tax, invests your chosen share of the rest each month, and grows it.
Side income you never spent is the easiest money to invest.
Common questions
How much tax should I set aside?
US self-employment income usually owes income tax plus about 15.3% self-employment tax. 25–30% is a common cushion.
Where should I invest it?
A Solo 401(k) or SEP IRA can shelter self-employment income from tax; otherwise a regular brokerage account.
Should I pay off debt first?
High-interest debt usually comes first.
FatDCA calculators are educational estimates, not investment, tax or legal advice. Results depend on the assumptions you enter, and past returns do not predict future returns.
One small deposit a week, for your brain
- 1chart from real data
- 1idea in plain English
- 1thing to do this week