CALCMONEY // STUDENT LOAN // MT
Estimate your monthly student loan payment, income-based repayment amount, and total interest using Montana income and cost-of-living data.
Open Full Student Loan Calculator$75,340
97
$440/mo
4.7%–5.65%
| National Avg Undergraduate Debt | $37,650 |
| Standard 10-Year Monthly Payment | $428/mo |
| Total Interest Paid (10 years) | $13,743 |
| Extended 20-Year Monthly Payment | $282/mo |
| Total Interest Paid (20 years) | $29,933 |
| Est. IBR Payment (based on median income) | $440/mo |
$791/mo
10-year standard repayment
6.8%
Annual payments / median household income
Montana Student Loan Quick Reference 2026
| Metric | Value | Notes |
|---|---|---|
| Median Household Income | $75,340 | State median |
| National Avg Loan Balance | $37,650 | Undergraduate |
| Standard 10-Yr Payment | $428/mo | 6.54% federal rate |
| Total Interest (10-yr) | $13,743 | On avg balance |
| Est. IBR Payment | $440/mo | 10% of discretionary income |
| Payment as % of Income | 6.8% | Annual payments / median income |
IBR calculated using 10% of discretionary income above 150% of federal poverty line.
The median household income in Montana is $75,340. On the national average student loan balance of $37,650, a standard 10-year repayment plan at 6.54% costs $428/month — representing 6.8% of gross median income. Financial planners typically recommend keeping student loan payments below 10% of gross income.
Montana's cost of living is near the national average (index: 97). Standard repayment plans are manageable for most borrowers earning at or above the state median income.
Montana has a state income tax of 4.7%–5.65%. Federal student loan interest is deductible up to $2,500/year if your MAGI is below $85,000, reducing your effective borrowing cost. Check whether Montana mirrors the federal deduction for state return purposes.
| Loan Balance | Monthly Payment | Total Interest | % of MT Income |
|---|---|---|---|
| $15,000 | $171/mo | $5,475 | 2.7% |
| $27,000 | $307/mo | $9,856 | 4.9% |
| $37,650 | $428/mo | $13,743 | 6.8% |
| $50,000 | $569/mo | $18,251 | 9.1% |
| $75,000 | $853/mo | $27,376 | 13.6% |
| $100,000 | $1,138/mo | $36,502 | 18.1% |
On the national average student loan balance of $37,650, a standard 10-year federal repayment plan at 6.54% produces a monthly payment of approximately $428. With Montana's median household income of $75,340, that payment represents about 6.8% of gross annual income.
IBR caps your federal student loan payment at 10% of discretionary income. Discretionary income is calculated as your adjusted gross income minus 150% of the federal poverty line (approximately $22,590 for a single person). Based on Montana's median household income of $75,340, the estimated IBR payment would be approximately $440/month. Any remaining balance after 20–25 years is forgiven, though forgiven amounts may be taxable.
Federally, you can deduct up to $2,500 of student loan interest per year if your modified adjusted gross income is below $85,000 ($170,000 married filing jointly). The deduction phases out above those limits. Montana has a state income tax of 4.7%–5.65%. Most states that have an income tax follow the federal deductibility rules, but Montana rules may differ — consult a tax professional.
Montana has a cost of living index of 97 (national average = 100). At 97, Montana's cost of living is near the national average, providing a reasonable baseline for standard repayment on a median income.