I have a 4000 dollar gain in my taxable account. I am in the 15% tax bracket and therefor I believe if I sell I will not be taxed on the gain. I don't need the money but I believe if I sell and buy back later I can increase my cost basis. I have instructed Vanguard to use the Average approach for cost basis. These shares are non covered. Does this mean I have to report these to the IRS? If so, how do I do so? How long do I have to wait to buy back these shares? I am relatively new to investing in taxable stock/bond accounts as I have 75% of my portfolio in tax deferred. Any insight from the distinguished panel?