Are there any tax deductions if I have to support my unemployed parents financially?

[Kell23elis]

Can I claim my parents as dependents on my tax return?

About how much deductions am I eligible for both of my parent?

[macuser_22]

Possibly if they and you pass these tests:

---Tests to be a Qualifying Relative (& Unrelated Persons)---
(Must meet ALL of these tests to be a dependent)

1. The person cannot be your qualifying child or the qualifying child of any other taxpayer.

2. The person either must be related to you, or must live with you all year (all 365 days - There are exceptions for temporary absences such as school, illness, business, vacation, military service) as a member of your household.

3. The person's gross income for the year must be less than $4,150 (tax-exempt income, such as certain social security benefits, is not included in gross income)

4. You must provide more than half of the person's total support** for the year.

5. The person is not filing a joint return.

In any case, the person must be a U.S. citizen, U.S. resident alien, U.S. national, or a resident of Canada or Mexico

The above is simplified; see IRS Publication 501 for full information.
https://www.irs.gov/publications/p501#en_US_2018_publink1000220939

** Worksheet for determining support
https://www.irs.gov/publications/p501#en_US_2018_publink1000292527

[Kell23elis]

Do I need to submit any proof that I’m supporting both of my parents?

Do they have to physically live with me even if I provide financial support all year from another’s state?

[macuser_22]

A parent does not need to live with you.

You do not submit any proof, but should have it if the IRS wants it.