IRS DATABASE LISTING ALL RECOGNIZED NON PROFIT CHARITIES
Remember contributions to political parties, political organization and PACS are not deductible. Also with respect to foreign tax exempt charities the rules on whether or not the contribution can be deducted are complex and must be followed if you wish to get a deduction. Those rules must be reviewed carefully to assure you contribution will produce a tax benefit. See IRS publication 526
For 2018 and beyond you get a standard deduction on Schedule A of $24,000 if you file jointly or $12,000 if you file single. Therefore your taxes, medical expenses, charitable contributions, etc must exceed those amounts to give you any tax benefit.
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