For the first half of 2007, I was working as a full time W2 employee at a company, and was laid off towards the middle of the year. By that time, I had already contributed close to my limit of $15000 employee contribution towards my employer's 401k plan.
After my lay-off, I started working as a 1099 contractor working for several clients. My question is: Can I contribute a part of my 1099 income as profit sharing to a solo 401k (which I had already setup in late 2007), and how much can I contribute. I have heard that usually one can contribute 25% of gross income minus cost of goods sold (which in case computer consulting would be nil) upto a maximum of $43000. Because I have already maxed out my $15000 employee contribution, am I still eligible to contribute a maximum of (43000-15000 = 28000) as profit sharing of my 1099 income towards my solo 401k?