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Montana High-Yield Savings Calculator — Updated 2026
Montana (MT) · State tax: 5.9% · Property tax: 0.83% · Median home (ZHVI): $460,000
As of · Sources: Zillow ZHVI, Tax Foundation, Census ACS, Freddie Mac PMMS
High-yield savings accounts currently offer approximately 4.5–5.0% APY, significantly above the traditional savings rate of 0.01–0.5%. In Montana, interest income earned on HYSA balances is taxed as ordinary income at both the federal rate and the 5.9% state rate. On a $50,000 balance earning 5%, that's $2,500 in interest — of which roughly $148 goes to state taxes alone. All deposits up to $250,000 per depositor per bank are FDIC insured regardless of state. With a cost of living index of 91, the purchasing power of your savings in Montana stretches further than the national average.
Montana Financial Snapshot (2026) — High-Yield Savings Calculator
Median income + cost-of-living scale the savings rate for the high-yield savings calculator in Montana.
How the High-Yield Savings Calculator Math Works Under Montana Law
The High-Yield Savings Calculator runs a well-known formula (principal × rate, discounted cash flow, amortization, or equivalent) client-side and layers on Montana's tax and cost-of-living inputs. State-specific numbers — brackets, exemptions, and averages — come from public federal / state datasets cited in the sources section.
Local context: Montana
Housing economics in Montana. The median home value runs 28.5% above the U.S. baseline for Montana is $460,000 per Zillow's home-value index. Effective property tax sits at 0.83% of assessed value, below the 0.99% national average tracked by the Tax Foundation.
Income and tax climate. Median household income in Montana reaches $81,920 per the ACS five-year vintage, pulling above the $78,538 U.S. median. Montana's top marginal state income tax bracket lands at 5.90% — compared to the volume-weighted national average around 4-5%. BEA's Regional Price Parity scores Montana at 91.0 (national = 100), meaning a dollar in Montana buys 110¢ — more goods and services than the same dollar nationally.
Local context as of 2026-04-19.
Montana versus the U.S. baseline
| Metric | Montana | U.S. baseline | Difference |
|---|---|---|---|
| Median home value[zillow] | $460,000 | $358,000 | 28.5% |
| Property tax rate[tax-foundation] | 0.83% | 0.99% | -16.2% |
| Top marginal income tax[tax-foundation] | 5.90% | ~4.08% (volume-weighted) | 1.8 pp |
| Cost-of-living index (RPP)[bea-rpp] | 91.0 | 100.0 | -9.0 pts |
| Avg homeowners insurance[naic] | $1,190/yr | $1,754/yr | -32.2% |
How to use the High-Yield Savings Calculator
Walk through using the High-Yield Savings Calculator with Montana-specific defaults pre-loaded from primary sources.
- Pre-fill with local dataEach calculator on this page loads with state- or city-specific defaults pulled live from primary sources (FRED, BLS, Zillow, Freddie Mac PMMS, IRS, BEA). The blue values shown next to each input are the local averages so you can see how your scenario compares to the typical case before changing anything.
- Override the inputs you controlChange any field to model your actual situation. The math reruns in your browser the moment you change a value — no signup, no API call, no data transmission. Hover over the small (i) icon next to each label to see the formula that field feeds and where the default came from.
- Read the derived valuesThe result panel shows the primary calculation (monthly payment, take-home pay, savings projection, etc.) plus the intermediate values that drive it. Each line item is labeled with the formula component it represents so you can verify the arithmetic against any agency publication, textbook, or competing calculator.
- Adjust assumptions and re-runMost calculators have a section for assumption inputs that are easy to overlook — annual raises, expected return, inflation, vacancy rate, depreciation schedule, marginal vs. effective tax treatment. The defaults are conservative; aggressive scenarios usually require explicit overrides.
- Save to "My Numbers"When the inputs match your reality, click Save to "My Numbers". The values persist to your device's local storage (IndexedDB) and reload automatically on your next visit. Nothing is transmitted to any CalcFi server — the saved-state feature is deliberately client-side only for privacy.
- Compare scenarios side by sideMost calculators offer a comparison view that shows two or more scenarios side by side. Use this to model decision points: 15-year vs 30-year mortgage, Roth vs Traditional IRA, salary vs hourly, lease vs buy. The comparison view also produces a shareable summary you can download as PNG or PDF.
Worked Examples: High-Yield Savings Calculator in Montana Cities
Same formula, different inputs. Each city name links to its own pSEO page where the calculator is pre-filled with local medians.
| City | Median home | Median rent | Median income |
|---|---|---|---|
| Billings, MT | $402,381 | $1,409/mo | $74,599 |
Sources: Zillow ZHVI + ZORI[1],Census ACS[2], Freddie Mac PMMS[3].
How Montana Compares to Neighboring States
| State | Median home | Top inc tax | Prop tax rate | RPP (US=100) |
|---|---|---|---|---|
| Montana (this page) | $460,000 | 5.90% | 0.83% | 91.0 |
| Idaho | $465,000 | 5.70% | 0.69% | 92.2 |
| see North Dakota | $265,000 | 2.50% | 0.98% | 88.2 |
| compare to South Dakota | $275,000 | None | 1.24% | 88.1 |
| compare to Wyoming | $340,000 | None | 0.61% | 91.6 |
Sources: Zillow ZHVI[1], state Departments of Revenue / Tax Foundation[2], Tax Foundation property taxes[3], BEA Regional Price Parities[4].
What Changes Your Result in Montana
- Montana cost-of-living drag:Line-item costs in Montana deviate from the US mean by whatever the BEA all-items RPP deviates from 100. Weight your budget toward the state average rather than the national average.
Related Calculations for Montana
- Montana Emergency Fund Calculator — HYSA is where emergency funds sit.
How Montana Compares
| Metric | Montana | National Avg | ID | ND | SD |
|---|---|---|---|---|---|
| Median Home Price | $460,000 | $420,000 | $465,000 | $245,000 | $295,000 |
| Property Tax Rate | 0.83% | 1.07% | 0.84% | 0.98% | 0.82% |
| State Income Tax | 5.9% | 4.6%* | 5.8% | 5.94% | None |
| Avg Insurance Cost | $1,190/yr | $1,544/yr | $1,320/yr | $1,320/yr | $1,320/yr |
| Cost of Living Index | 91 | 100 | 99 | 88 | 89 |
| Household Income — p25 | $45,609 | $41,401 | $43,600 | $46,400 | $45,200 |
| Household Income — p50 (median) | $82,000 | $83,592 | $81,700 | $87,500 | $79,954 |
| Household Income — p75 | $142,396 | $153,000 | $137,996 | $150,375 | $130,002 |
*Average of states that levy an income tax. 2026 estimates. [3] Income percentiles from DQYDJ/Census CPS 2024[4].
Montana Financial Planning Tips
Montana's median household income is $81,920. Saving between 10% ($8,192/yr) and 15% ($12,288/yr) of gross income spans the typical range recommended by financial planners for long-term savings goals. Montana's cost of living is below the national average (RPP index 91), which stretches the purchasing power of the median income. Montana's top marginal state income tax rate is 0.06%.
Montana's BEA RPP cost-of-living index is 91 — 9 points below the national baseline of 100. For savings calculators, this means reaching the same real-dollar goal requires fewer nominal dollars than the national average. When setting a savings target in this calculator, adjust the goal by the COL index if you plan to spend the funds in Montana rather than in another region.
Regional CPI YoY is running ~2.7%, vs ~3.2% nationally. Montana unemployment sits at 3.6% (below the 4.1% national rate). Labor force participation in Montana runs about 62.5%, reflecting the share of the working-age population actively engaged in the labor market.
Frequently Asked Questions: High-Yield Savings Calculator in Montana
How does the high-yield savings work in Montana?
- The high-yield savings calculator runs the standard client-side formula and layers on Montana's 5.9% state income tax, 0.83% property tax rate, and cost-of-living index of 91. All inputs stay in your browser.
What is Montana's top marginal income tax rate?
- Montana's top marginal state income tax rate is 0.06%.
Does Montana tax Social Security or retirement income?
- Montana taxes Social Security and taxes pensions/401(k)/IRA at standard rates.
What's the combined sales tax rate in Montana?
- Montana levies no or minimal state sales tax.
Does Montana have an estate or inheritance tax?
- Montana levies no state estate tax and no inheritance tax.
Is the high-yield savings free to use for Montana residents?
- Yes — the High-Yield Savings Calculator is 100% free, with no signup required. All Montana-specific numbers (median home price $460,000, property tax 0.83%, 5.9% state income tax) are prefilled from public datasets. Calculations run in your browser; no data is sent to our servers.
Does the high-yield savings replace tax or financial advice?
- No. The High-Yield Savings Calculator provides educational estimates using public data and standard formulas. It is not personalized tax, legal, or investment advice. For decisions with material consequences, consult a licensed professional.
More Calculators
← Back to High-Yield Savings CalculatorRelated Calculators for Montana
Calculate for Neighboring States
Montana Financial Data (2026)
- State Income Tax
- 5.9%
- Property Tax Rate
- 0.83%
- Median Home Price
- $460,000
- Annual Property Tax (median home)
- $3,818
- Avg Homeowners Insurance
- $1,190/year
- Cost of Living Index
- 91 (100 = avg)
- State Estate Tax
- No
- State Abbreviation
- MT
Compare Montana with other states
Every number on this page reads from the same CalcFi data repository used by the Live Data pages below — the figures stay consistent.
Home Prices by State
Zillow ZHVI across all 50 states
Property Tax by State
Effective rate × ZHVI = annual bill
Household Income by State
FRED real median + percentile bands
Cost of Living by State
BEA RPP all-items + housing
No-Income-Tax States
Full list + trade-offs
Current Interest Rates
Treasury curve + PMMS + FDIC
How we compute this — methodology
CalcFi pSEO pages combine three inputs: (1) the calculator formula itself, which runs client-side so no inputs leave your browser; (2) state-level financial constants from primary public datasets; and (3) national benchmarks for comparison. The Montana page uses the property tax rate (0.83%), median home price ($460,000), and 5.9% state income tax from the sources listed below.
Known limits: statewide averages mask large intra-state variance — county-level property tax and metro-level home prices differ significantly from the figures shown. For the most precise calculations, cross-check the output against your actual county assessor and the latest federal/state tax tables at filing time.
More Cities in Montana
Use High-Yield Savings Calculator for any city in Montana.
Related Calculators & States
Related Calculators for Montana
National reference: High Yield Savings Calculator Calculator
Sources
Every number on this page cites a primary public dataset. Last reviewed (auto-bumped by the next ISR refresh after an ETL run).
- U.S. Department of Labor, Wage and Hour Division — State Minimum Wage Laws. dol.gov/agencies/whd/minimum-wage/state. Retrieved 2026-04-19.
- Tax Foundation — State Individual Income Tax Rates and Brackets. taxfoundation.org/data/all/state/state-income-tax-rates-2025. Retrieved 2026-04-19.
- Composite state financial context (median home price, property tax effective rate, cost of living index) cross-referenced against the primary sources below.
- Census Current Population Survey / IPUMS CPS (income year 2024) via DQYDJ state tools. dqydj.com. Retrieved 2026-04-19.
- FRED (Federal Reserve Economic Data) — real median household income, unemployment, HPI, LFPR per state — fred.stlouisfed.org. Retrieved 2026-04-19.
- Internal Revenue Service — federal individual income tax brackets and standard deductions — www.irs.gov/forms-pubs/about-publication-17. Retrieved 2026-04-19.
- FDIC — National Deposit Rates (savings, checking, CD) — www.fdic.gov/resources/bankers/national-rates. Retrieved 2026-04-19.
- U.S. Census Bureau — American Community Survey (ACS) 5-year estimates — www.census.gov/programs-surveys/acs. Retrieved 2026-04-19.
- Zillow Research — ZHVI (Zillow Home Value Index) + ZORI (Zillow Observed Rent Index) — www.zillow.com/research/data. Retrieved 2026-04-19.
- Freddie Mac Primary Mortgage Market Survey (PMMS) — weekly national mortgage rates — www.freddiemac.com/pmms. Retrieved 2026-04-19.
- Tax Foundation — Property Taxes Paid as % of Owner-Occupied Housing Value; State Tax Rates and Brackets; Estate/Inheritance; Social Security Taxation — taxfoundation.org/data/all/state. Retrieved 2026-04-19.
- NAIC Dwelling Fire, Homeowners Owners, and Homeowners Tenants Insurance Report — content.naic.org/article/homeowners-insurance-report. Retrieved 2026-04-19.
- State Departments of Revenue — official bracket + deduction publications (one primary URL per state; linked in the brackets table below) — taxfoundation.org/data/all/state/state-income-tax-rates. Retrieved 2026-04-19.
- Bureau of Economic Analysis — Regional Price Parities by State — www.bea.gov/data/prices-inflation/regional-price-parities-state-and-metro-area. Retrieved 2026-04-19.
- U.S. Department of Labor — State Minimum Wage Laws — www.dol.gov/agencies/whd/minimum-wage/state. Retrieved 2026-04-19.
- BLS Occupational Employment and Wage Statistics (OEWS) — state-level occupational wages — www.bls.gov/oes. Retrieved 2026-04-19.
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