I have exactly this problem as rchead037: I have VT on several 1099-DIVs but it is not listed in Vanguard's documentation what the foreign source income percentage is for VT because it did not pass through anything on the foreign tax credit. Today, I even called up VT's office and when I explained the situation and asked if they could tell me the foreign source income % for VT even if there was no credit, the answer I got was that what is in the Vanguard document is what they are required to report and they couldn't provide the information.
As you can see, VT is listed nowhere here:
https://www.vanguard.com/pdf/FTC_2023.pdf
As a result I have sold my VT and will try to move away from it. I guess I read somewhere else that people just buy a 100% foreign sourced international index fund to avoid the fact that VT doesn't pass through tax credits. Also in this case I'd do it just to avoid the fact that it's impossible to report the foreign sourced income for it.
That doesn't really help me for this year's taxes though. Not sure what to do for that. I'd be tempted to take the foreign deduction but I use the standard deduction so that's not an option.
At this point, I'm thinking about simply foregoing the foreign tax credit altogether. It seems like neither Vanguard or Turbotax are likely to be help sort this out, and the IRS documentation for that form is a mess. The time I'll spend sorting it out will be worth more than the few hundred dollars of foreign tax credit I'd be giving up.
In any case, lesson learned--from now on I'll only get international index funds that are clearly documented in terms of their foreign sourced income by whoever offers them...
