
I can't believe I did this. I am typically uber-careful and plan all my portfolio activities with a ton of spreadsheets and deliberate consideration of all the angles. Have been doing this successfully for 20+ years and have learned a ton from the collective wisdom here. We are nearing the end of our accumulation mode and have for years been fortunate enough to max out pre-tax contributions, do mega backdoor Roths, 529s, and taxable investments. All good.
Well this past August I was doing some very infrequent re-balancing (once every couple of years) and accidentally did it in our taxable Vanguard account. I KNOW that "exchanging" one equity index fund (S&P 500, VTSAX) for another one (International, VTIAX) means selling one and buying the other but perhaps because I've always had room in our 401ks or Roths to rebalance or it's been so long since I've done anything in the taxable account except deposit funds automatically that I had this lapse in judgement. And it was a big one to the tune of ~$500k.
Fast forward to this morning when I'm starting to import 1099s into TurboTax. Everything is looking as expected....W2s, 1099-DIVs, and then BOOM the tax bomb goes off to the tune of $92k extra due with the 1099-B from Vanguard. I was floored and so upset with myself once I realized how it occurred. It was nearly all long-term gains of course but I really didn't have an immediate need to take it and because our income has been fortunately been high it's at the 20% CG + 3.8% net investment income tax. Argh!
I think I'm mostly venting here. I mean I could have put it into some crazy risky investment and done worse. And eventually the tax will have to be paid anyway, but I'm so frustrated by the inefficiency I've caused on a smaller portion of our overall investments. And now I need to go sell part of the new position because of course I didn't withhold anything for taxes.
Am I making too big a deal out of this and/or is there any other strong upside / opportunity I should now consider with the higher basis on the new investment?
Thoughts and advice welcome. Thanks!!!
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