In the past two years I became a government contractor, recieving only a statement of payment form from my employer. I had not realized that I needed to file taxes differently, and submitted my taxes for last year in the stanard way in April. Since that date I have yet to submit any quarterly estimated taxes. Given this, here are a two of my questions:
Which quarterly payements do I still need to submit, and is there any thing I need to do in particular in order to make up for these missed quarterly payments?
Is there any other paperwork I need to submit along with my payment at the IRS website?