2025 Standard Deductions
This page covers the standard deduction amounts and the student loan interest deduction for single filers in 2025.
Standard Deduction by Age and Situation
The standard deduction varies based on age and whether the filer is blind:
| Situation | Amount |
|---|
| Single, under 65 | $15,750 |
| Single, 65 or older | **17,750∗∗(15,750 + $2,000 additional) |
| Single, blind | **17,750∗∗(15,750 + $2,000 additional) |
| Single, 65+ AND blind | **19,750∗∗(15,750 + 2,000+2,000) |
The “65 or older” threshold for 2025 applies to filers born before January 2, 1961.
| Form | Who Uses It |
|---|
| Form 1040 | Filers under 65 |
| Form 1040-SR | Filers 65 or older (born before Jan 2, 1961) |
Student Loan Interest Deduction
The student loan interest deduction is an above-the-line deduction that reduces your adjusted gross income (AGI).
Parameters
| Parameter | Value |
|---|
| Maximum deduction | $2,500 |
| Phaseout start (Single) | $85,000 MAGI |
| Phaseout end (Single) | $100,000 MAGI |
| Phaseout range | $15,000 |
| Form line | Schedule 1, Part II, Line 21 |
if MAGI <= 85,000:
deduction = min(interest_paid, 2500)
elif MAGI >= 100,000:
deduction = 0
else:
ratio = (MAGI - 85,000) / 15,000
deduction = min(interest_paid, 2500) * (1 - ratio)
deduction = round(deduction, 2)
How It Works
- If your MAGI is 85,000orless,yougetthefulldeduction(upto2,500 of interest paid)
- If your MAGI is between 85,000and100,000, the deduction phases out proportionally
- If your MAGI is $100,000 or more, you get no deduction
The student loan interest deduction is claimed on Schedule 1, Part II, Line 21 and reduces your AGI. It is NOT part of the standard deduction.