16,550 is right for 2024. The 18,500 is for next year when you do your 2025 tax return.
For 2024 the standard deduction amounts are:
Single 14,600 + 1,950 for 65 and over or blind (16,550)
HOH 21,900 + 1,950 for 65 and over or blind (23,850)
Joint 29,200 + 1,550 for each 65 and over or blind (30,750/32,300)
Married filing Separate 14,600 + 1,550 for 65 and over or blind (16,150)
