If the first 20k is after accounting for emergency funds and your liabilities, I will put around 10k in risk free assets like SSBs or a high yielding bank account. This part is to make sure that I am beating inflation and hopefully gain a little. The next 10k I will likely split between the relatively more risky investments like stocks, roboadvisors, ETFs, funds, private equity bonds like Astrea etc depending on how active you are as an investor. Remember to do your own due diligence and cost analysis as cost matters more when you are a small retail investor! Personally I am more conservative so I would prefer a 50-50 or max 40-60 split until I have my emergency funds built up. Invest if you can spare the money to build your wealth, after building your emergency funds, after reducing your liabilities, after you are properly insured.