One question I have not been able to answer: we can deduct up to 60% of AGI for cash contributions, 30% of AGI for appreciated stock - can we do 30% cash AND 30% stock?
I don't think so. If you do a combination of stock and cash donations, you can only deduct a total of 50% of your AGI. You could do 30/20, 25/25, etc. This is my understanding based on running through
this IRS worksheet.
For most charities, your stock (and other capital asset) donations will go on Line 8, your donations of non-cash non-capital assets (used household goods given to Goodwill, etc.) will go on Line 9, and your cash donations will go on Line 10.
Suppose you put 30% of your AGI on each of Lines 8 and 10.
The 60% limit for cash contributions is applied on Lines 12-14.
Line 12: 60% of your AGI
Line 13: Smaller of Line 10 (30% of your AGI in this example) and Line 12 (60% of your AGI). This line is deductible on Schedule A.
Line 14: Any excess, carried over to next year (none in this case).
The 30% limit for capital asset donations is applied on Lines 26-31.
Line 26: 50% of your AGI.
Line 27: Sum of Lines 9-10 (in this example, Line 9 is zero, Line 10 is 30% of AGI, so you'll put down 30% of AGI).
Line 28: Subtract Line 27 from Line 26 (20% of AGI in this example).
Line 29: 30% of your AGI.
Line 30: Smallest of Line 8 (30% of AGI), Line 28 (20% of AGI), or Line 29 (30% of AGI). 20% of AGI it is.
Line 31: Carryover, Line 8 (30% of AGI) - Line 30 (20% of AGI) = 10% of AGI
As you can see, if you do a 30% of AGI cash donation and a 30% of AGI stock donation, you'll get to deduct the entire cash donation, two-thirds of the stock donation, and the final one-third of the stock donation will be carried forward until the next year.