My daughter will be married, a student, 23 years old, and I will be providing most of her support, and she will not file taxes. Can I count her as my dependent on my taxes?
Is your daughter going to file a joint return with her spouse? And did she live with you for more than half the year?
Here are some rules from the IRS about claiming dependents:
For more information, read here: https://www.irs.gov/publications/p501#en_US_2022_publink1000220730
The IRS has a great tool that can help you determine if you can claim her. You can find that here: https://www.irs.gov/help/ita/whom-may-i-claim-as-a-dependent
Does being away at college count as living with you?
The IRS states, "Temporary absences: You and your qualifying person are considered to live together even if one or both of you are temporarily absent from your home due to special circumstances such as illness, education, business, vacation, military service, or detention in a juvenile facility. It must be reasonable to assume the absent person will return to the home after the temporary absence. You must continue to keep up the home during the absence." Link
As long as her being away at college is a temporary absence, then she would still be considered to live with you while she is away.