The upper limit for cash, for all cash charitable donations is 50% of your AGI. (60% for 2018)
But...the thing you may be referring to is that the Standard Deduction is being doubled. Thus it is possible that your charity/church donations will not be used unless they (plus all your other itemized deductions) exceed the new Standard Deduction levels
So if your itemized Deductions don't exceed the new Standard Deduction, then the Sd Ded is used instead. Check your 2017 Itemized Deductions to see if they exceed the new Std Deduction
For 2018
Single $12,000
Married filing jointly $24,000
Head of household $18,000
Married filing separately $12,000
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
