If you are 65 or older you get an extra $1300 added to your standard deduction.
2018 Standard Deductions:
Single $12,000 (+ $1600 65 or older)
Married Filing Separately $12,000 (+ $1300 65 or older)
Married Filing Jointly $24,000 (+ $1300 each spouse 65 or older)
Head of Household $18,000 (+ $1600 65 or older
Look at line 8 of your Form 1040 to see your standard or itemized deductions.
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