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@dascpa wrote:

they bought a Tesla and wall charger and I cannot find what the heck a GEOID is for the wall charger as it's required.

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You've probably found it by now, but look at Worksheet 1 in the Instructions for Form 8911.  The credit only applies to rural areas and certain low-income urban areas.

https://www.irs.gov/instructions/i8911#en_US_2023_publink1000140996