No, I'm afraid this has yet to make it into the game. If an extra income is desired/needed, there are a few things you could have your Sim do in their 'off' time. Gather the wild fruit/veggies and flowers around your lot and sell them from the inventory. Paint and sell the artwork; write and sell the books/articles. I'm currently playing a Legacy Challenge family, and money is really tight, so my Sims gather the wild fruit/veggies and flowers from around their lot. Comes in handy, and has actually helped them keep the lights on. o:)
