I gave my daughter $75,000. What do I have to do?

[Marketstar]

Gifts are neither deductible for the donor nor taxable to the recipient.

You would be required to file a Form 709 Gift tax return for gifting over $14,000 to your daughter.

Even then, the gifting will not be taxable until the sum total of all gifts exceed the lifetime limit of $5,490,000

See the following:

https://www.irs.gov/pub/irs-pdf/f709.pdf

https://www.irs.gov/pub/irs-pdf/i709.pdf