Montana 529 College Savings Calculator
Calculate 529 college savings growth in Montana. Possible state tax deduction — enter your own eligible amount to estimate savings. See projected savings and tax benefits.
Enter Your Details
Adjust values to see instant results
Additional Details
Pre-filled: Census Bureau (edit to your actual taxable income)
Projected 529 Balance
Estimated • Based on your inputs
Total College Cost
$107,753.00
Detailed Breakdown
Disclaimer: This calculator provides estimates for informational purposes only. Results should not be considered financial, tax, or legal advice. Consult a qualified professional for your specific situation.
How This Calculator Works
Calculation methodology and assumptions
529 plan calculator for Montana residents. Projections use compound interest with monthly contributions. Montana may offer a state income tax deduction for 529 contributions: $3,000 single / $6,000 joint for Achieve Montana. This site does not automatically know or apply Montana's current limit for you — enter your own taxable income and the contribution amount you've verified is state-deductible below to see an estimate of your savings. Federal benefit: earnings grow tax-free and withdrawals for qualified education expenses are tax-free. Annual 529 gift tax exclusion: $19,000/person ($38,000 for couples) without gift tax implications. Superfunding allows 5 years of gifts upfront ($95,000/$190,000). "State Tax Savings/Year" here is calculated as Montana's tax on your entered taxable income minus its tax on that income after subtracting your verified-eligible contribution (bounded by your total annual contribution) — using Montana's real progressive brackets, applied marginally, never a flat "top rate × amount" shortcut.
Key State Information
Montana 529 plan facts: Montana may offer a state income tax deduction for 529 contributions: $3,000 single / $6,000 joint for Achieve Montana. This site does not automatically know or apply Montana's current limit for you — enter your own taxable income and the contribution amount you've verified is state-deductible below to see an estimate of your savings. Median household income: $75,340 | COL index: 105.9. 529 funds can be used for tuition, room & board, textbooks, and K-12 tuition (up to $10,000/yr).
Example Calculation
Let's plan college savings for a newborn in Montana.
Goal: fund 4 years at an in-state public university. Current cost: $27,000/year × 4 = $108,000. With 4% annual cost inflation over 18 years, projected cost: ~$218,000. Using a 529 plan with 7% average annual return, investing from birth.
Result: Required monthly contribution: ~$530/month from birth. If you wait until the child is 5, the monthly contribution jumps to ~$835. Starting early makes a dramatic difference. Additionally, Montana offer a state income tax deduction for 529 contributions — saving 3-10% immediately on contributions. Some states allow up to $10,000/year in deductible contributions per beneficiary.
Newsletter Signups Are Paused
We're building the email delivery behind our newsletter so we can do it properly — signups aren't open yet. Check back soon.
No form here and nothing is collected. Read our privacy policy.
StateCalc Team
Editorial Team
The StateCalc team builds free financial calculators using data from official government sources including the IRS, U.S. Census Bureau, BLS, and state revenue departments. All formulas are validated by an automated test suite and cross-referenced against published data.
Our editorial standardsFrequently Asked Questions
Does Montana offer a 529 tax deduction?
Montana may offer a state income tax deduction for 529 contributions: $3,000 single / $6,000 joint for Achieve Montana. This site does not automatically know or apply Montana's current limit for you — enter your own taxable income and the contribution amount you've verified is state-deductible below to see an estimate of your savings.
How much should I save in a 529 plan in Montana?
With average in-state tuition around $10,000-$15,000/year and total costs (including room/board) of $20,000-$35,000/year, aim to save at least 50-75% of projected total costs. Starting early with $200-$500/month can reach $50,000-$100,000 over 10-15 years.
What happens to unused 529 funds?
As of 2024, unused 529 funds (open 15+ years) can be rolled into a Roth IRA for the beneficiary, up to $35,000 lifetime. You can also change the beneficiary to another family member, or use funds for graduate school.
How is my Montana "State Tax Savings/Year" calculated?
Enter your actual annual taxable income and the contribution amount you've personally verified is deductible on your Montana return (this calculator does not know or apply Montana's current limit for you — $3,000 single / $6,000 joint for Achieve Montana). The savings shown are the real difference between Montana's tax on your income and its tax on your income minus that contribution amount (capped at your total annual contribution), using Montana's actual progressive tax brackets, applied marginally — not a flat top-rate estimate.
People Also Calculate
Frequently used together with this calculator
Related Calculators
More 529 College Savings Calculators
More Calculators for Montana
Explore related financial tools with Montana data
Compare Montana With Other States
Side-by-side tax, housing & cost of living comparisons