Hey all. I was just wondering, in regards to earnings from my CPA and quarterly estimated earnings how would that process work? As it is right now my income with CPA is a bit unstable so some months I will earn more than others. How exactly does this work in terms of filing with the IRS in this way (estimated quarterly income)? How do us some of you pay? Do you pay for everything during tax season or do you use estimated quarterly earnings? For the record I am in the US. Any advice is appreciated.