I started to post a reply about moving to a new country after Drewbert's post about renouncing citizenship to avoid being taxed by the US on your worldwide income but I thought...blah, blah, blah...too boring.
This thread took an interesting turn since then.
Y'all got the basics down, and Chad you are well versed in tax law, but I just have to toss out that you can't bandy tax rates around as if they were the be-all and end-all. Yes, you pay 15.3% on your SE earnings (if you aren't using an S Corp to minimize that) but you also get a deduction for half of that, just as you get a deduction for your state income taxes, mortgage interest, etc. BUT, if your income is too high, those itemized deductions start getting phased out at 3% of the excess of your income over the threshold. And let's not EVEN get into Alternative Minimum Tax which is hitting more and more middle income earners (especially California AMT).
Having spent the past 15 years helping rich people keep their money I have to say that I am more in tune with bidawinner (without the demagoguery and denigration). How fortunate not to be poor in Ethiopia, or a child laborer in Columbia or China or wherever people are exploited or starving.
But we all live in the reality of our circumstances, and the fact is that you can only do so much to reduce your tax liability. It is particularly galling when you see corporations paying $0 and using accounting sleight-of-hand to earn billions at the same time.
But the fact is that you will pay tax wherever you go, if not to the US then to somewhere else. And the only was to get out of paying US Tax is to renounce your citizenship - and mean it. The IRS is hip to the "fake renunciation" for tax purposes.
Now the rule of thumb for tax advice is "don't let the tax "tail" wag the dog" - so you have to ask yourself, what is the monetary worth of living essentially in exile in a foreign country? How much would someone have to pay you, or how much would you have to save in taxes to make that comfortable? When you have figured that out then you will have a better idea of which countries you might be willing to consider.
blah, blah, blah...toldja...taxes are boring.
Gail