My wife made charitable donations in her name, but doesn't make enough for the tax benefit. Can I claim them even though they were initially in her name?

Yes, charitable donations are flexible in how they’re claimed. If claiming your donations will not affect your balance owing or refund due to low income or due to claiming other deductions, you can transfer all or some of your donations to your spouse. Alternatively, she also has the option to carry forward unused donations for up to 5 years but remember that donations can be claimed only once.

TurboTax article with more information: Tax Benefits of Charitable Donations 

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