I may be moving from Texas to Colorado. Colorado has a 4.65% tax on income, including capital gains, whereas there is none in Texas.

I'm wondering if it makes any sense to sell and rebuy stocks with large gains while I still live in Texas? From what I understand, I would only be subject to colorado tax for gains made once I move there.

I'm wondering if it's advisable to do this? Obvious I would avoid 4.65% taxes in gains on the stock. On the other hand, I would lose the value of deferring my tax payment to the future, and I would also lose any possible tax losses if there was decline the stocks from this point. On some of it I feel pretty good that it's unlikely to lose value. But with the state of the EU I suppose anything is possible in the world economy these days.

Any opinions? Would you ever consider this, or is the risk unlikely to be greater than the potential gain?