Limiting eligibility for a credit against the State income tax for certain long-term care insurance premiums paid by a taxpayer for long-term care insurance purchased before January 1, 2005, to taxpayers who are at least 85 years old with a Maryland adjusted gross income of less than $100,000 for an individual or $200,000 for a joint filer; altering the maximum amount of the credit; and applying the Act to all taxable years beginning after December 31, 2024.