Yes, you can list donations to charities and churches. Whether this reduces your tax or increases your refund depends on your overall tax situation (like, whether your itemized deductions are more than your standard deduction). If audited, you must have certain receipts and other proofs. In particular, you are no longer allowed to deduct donations of cash unless you have a receipt from the charity. (You can deduct donations by bank card or check if you have the bank record, even if the organization does not give you a receipt--although they are required to give you a receipt if you donate more than $75. But if you put anonymous cash in the collection plate and the church doesn't know who you are to send a receipt and you don;t have a bank record of the donation, you can't deduct it.)
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