Montana (MT) · State tax: 5.8999999999999995% · Property tax: 0.83% · Median home (ZHVI): $460,000
Home improvement costs in Montana are directly influenced by the cost of living index of 91.014 and local labor rates. Montana's near-average cost of living means renovation costs generally track national averages. With a median home price of $460,000, home improvement projects in Montana tend to have higher ROI since the property value base is substantial. Interest on home equity loans used for renovation may be deductible against Montana's 5.8999999999999995% state income tax.
Home value + property tax drive the resale baseline for the pool cost calculator in Montana. Every row cites a primary public dataset. Numbers reflect the most recent vintage available; refresh cadence is documented in the methodology.
The Pool Cost 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.
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 | HUD FMR 2BR | Median income |
|---|---|---|---|---|
| Billings, MT | $402,381 | $1,409/mo | $1,300/mo | $74,599 |
Sources: Zillow ZHVI + ZORI[1], HUD FMR[2], Census ACS[3], Freddie Mac PMMS[4].
Moving one state over changes the pool cost numbers. Compare median home value (Zillow ZHVI), top marginal income tax rate, effective property tax rate, and the BEA all-items Regional Price Parity across Montana and its border 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 |
| check North Dakota | $265,000 | 2.50% | 0.98% | 88.2 |
| see 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].
These calculators share inputs with the pool cost formula, so pair them to pressure-test your answer from multiple angles.
| 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 | 5.8999999999999995% | 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 | 91.014 | 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].
Track take-home pay: 5.8999999999999995% state income tax plus federal + FICA reduces gross wages by roughly 31% in Montana.
Anchor savings goals to the Montana cost of living index (91.014). A national 20% savings rate needs adjustment up or down depending on local expense floors.
Use tax-advantaged accounts first: 401(k), HSA, IRA. Contributions to pre-tax accounts save 5.8999999999999995% at the state level plus your federal marginal rate.
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
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 5.8999999999999995% state income tax from the sources listed below.
Refresh cadence:state tax brackets and minimum wage rates are reviewed annually after each state's legislative session. Property tax, median home price, insurance, and cost-of-living figures are reviewed annually against the primary sources. Income percentiles are refreshed when the Census CPS/IPUMS releases update (typically September). Page-level dateModified matches the last editorial review date, shown above.
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.
Use Pool Cost Calculator for any city in Montana.
Every number on this page cites a primary public dataset. Last reviewed (auto-bumped by the next ISR refresh after an ETL run).
CalcFi does not sell data. If you spot an error, email hello@calcfi.app with the URL and the correct figure.
Estimate the total cost of building a swimming pool including materials, installation, features, decking, and fencing. Compare above-ground vs in-ground pool prices.
Auto-updated · Verified daily against IRS, Fed & Treasury sources
Enter your numbers below
Based on your inputs
Plus $2,500/year in maintenance
| Pool Materials | $34,560 |
|---|---|
| Installation & Labor | $12,096 |
| Features & Upgrades | $0 |
| Decking | $7,000 |
| Fencing | $3,360 |
| Total Project Cost | $57,016 |
| Annual Maintenance | $2,500 |
Analyze 3+ calcs to unlock your Financial Picture dashboard (cross-analysis of all your numbers).
The single biggest factor driving your pool budget is the type of pool you choose. Each construction method offers different trade-offs between upfront cost, durability, maintenance requirements, and aesthetic flexibility.
Above-ground pools are the budget-friendly entry point. A basic round or oval above-ground pool with pump, filter, and ladder costs $1,500 to $6,000. Add professional installation, a deck surround, and upgraded equipment, and you reach $8,000 to $15,000. These pools last 7 to 15 years, are relatively easy to disassemble, and do not require permits in many areas. The downside is limited size, shape, and depth options, plus lower resale value contribution.
Vinyl liner in-ground pools cost $35,000 to $65,000 installed. The pool is excavated, walls are set (steel, polymer, or wood), and a custom vinyl liner is fitted. Installation takes 4 to 8 weeks. Vinyl liners feel smooth and resist algae better than concrete, but they puncture if stepped on with sharp objects and need replacement every 5 to 9 years at $4,000 to $8,000. Over 20 years, liner replacement adds $12,000 to $24,000 to ownership cost.
Fiberglass pools cost $45,000 to $85,000. A pre-formed fiberglass shell is manufactured off-site and delivered by truck, then lowered into the excavated hole. This is the fastest installation method at 2 to 4 weeks. Fiberglass has the lowest ongoing maintenance because the gel-coat surface is nonporous, resisting algae and staining. The limitation is that shapes and sizes are fixed by the manufacturer's mold catalog. You cannot get a fully custom shape in fiberglass.
Concrete (gunite or shotcrete) pools cost $50,000 to $100,000 or more. Concrete pools are fully custom: any shape, depth, or size is possible. The build process involves excavation, steel rebar framing, shotcrete or gunite application, plaster or pebble finishing, and tile work. Construction takes 3 to 6 months. Concrete pools are the most durable and offer the highest aesthetic value, but they require the most maintenance. The porous plaster surface needs acid washing every 3 to 5 years and replastering every 10 to 15 years at $10,000 to $20,000.
Pool size directly scales excavation, materials, and labor costs. A small pool (12 by 24 feet, 288 square feet) costs roughly 40 to 50 percent less than a large pool (20 by 40 feet, 800 square feet) of the same type. The most popular residential size is 16 by 32 feet (512 square feet), which provides enough room for swimming laps and recreational use without dominating the yard.
Depth also matters. A pool with a consistent 4-foot depth costs less to excavate than one with a shallow end of 3 feet transitioning to a deep end of 8 feet. The additional depth requires more structural engineering, more concrete or liner material, and significantly more water volume, which increases chemical and heating costs over the life of the pool.
Pool heating is one of the most requested features. A gas pool heater costs $2,000 to $4,000 to install and $200 to $500 per month to operate. A heat pump costs $3,000 to $5,000 to install but only $50 to $150 per month to run, making it cheaper over time. Solar pool heating costs $3,000 to $7,000 for panels and plumbing and has near-zero operating cost.
Underwater LED lighting adds ambiance and safety, costing $700 to $1,800 for a typical installation of 2 to 4 lights. Color-changing LED systems are at the higher end. A waterfall or water feature adds $3,000 to $10,000 depending on complexity, with natural rock waterfalls being the most expensive. An attached hot tub or spa adds $6,000 to $15,000 to the project, with integrated plumbing and heating shared with the main pool.
Pool decking provides the usable area around your pool. Poured concrete is the cheapest at $6 to $15 per square foot. Pavers cost $10 to $25 per square foot. Composite decking runs $25 to $45 per square foot. Natural stone like travertine or flagstone costs $15 to $40 per square foot. A 200-square-foot deck area at composite pricing adds approximately $7,000 to the project.
Pool fencing is legally required in most jurisdictions. A standard 120-linear-foot aluminum fence at $28 per foot costs about $3,360. Mesh safety fencing is cheaper at $1,800 to $3,000 for the same perimeter. If you opt for glass panel fencing for an unobstructed view, expect $10,000 to $24,000. Most building codes require fencing to be at least 4 feet tall with a self-closing, self-latching gate.
Many pool buyers underestimate ongoing expenses. Annual maintenance includes chemicals ($600 to $1,200), pump electricity ($500 to $1,200), filter maintenance, and professional cleaning if desired ($100 to $200 per month). Winterization costs $150 to $400 per season in cold climates. Pool equipment like pumps, filters, and heaters needs replacement every 8 to 12 years. A variable-speed pump replacement costs $1,000 to $2,500 but can cut electricity usage by 70 percent compared to a single-speed pump. Insurance premiums typically increase $50 to $100 per year with a pool. Consider also that a pool project often triggers additional landscaping, privacy fencing, and outdoor furniture purchases that were not in the original budget.
A swimming pool is one of the largest home improvement investments most homeowners will make. With average in-ground pool costs ranging from $35,000 to $100,000, few families can pay cash upfront. The financing method you choose can save or cost you thousands of dollars over the life of the loan, so understanding your options is critical before signing a contract with a pool builder.
The three main financing paths are home equity products (HELOC or home equity loan), unsecured personal loans, and builder-arranged financing. Each has distinct advantages depending on your credit score, available equity, timeline, and risk tolerance.
A home equity loan lets you borrow against the equity you have built in your home. If your house is worth $400,000 and you owe $250,000, you have $150,000 in equity. Most lenders let you borrow up to 80 to 85 percent of your home value minus your existing mortgage, giving you access to $70,000 to $90,000 in this example.
Home equity loans typically offer the lowest interest rates for pool financing, currently ranging from 6 to 9 percent depending on credit score and lender. The interest may be tax-deductible if the loan is used for home improvements, though you should consult a tax professional. The loan term is usually 5 to 30 years with fixed monthly payments.
A home equity line of credit (HELOC) works similarly but functions like a credit card. You draw funds as needed during a draw period (typically 5 to 10 years), then repay during a repayment period (10 to 20 years). HELOCs often have variable rates that start lower than fixed home equity loans but can increase over time. The draw feature is useful during pool construction when payments are staged.
The major risk with any home equity product is that your house serves as collateral. If you cannot make payments, the lender can foreclose. Also, if home values decline, you could end up underwater on your combined mortgage and equity loan.
Unsecured personal loans require no collateral, meaning your home is not at risk. Approval is based on credit score, income, and debt-to-income ratio. Rates typically range from 8 to 15 percent for borrowers with good credit (680+), with terms of 3 to 7 years. Some lenders offer pool-specific personal loans up to $100,000.
The advantages of personal loans include faster approval (often same-day), no home appraisal requirement, no risk to your property, and a fixed repayment schedule. The downsides are higher interest rates compared to home equity products and shorter repayment terms that result in higher monthly payments. A $50,000 personal loan at 10 percent over 5 years has monthly payments of about $1,062, compared to $581 per month for a 10-year home equity loan at 7 percent.
Many pool builders offer in-house financing or partnerships with lending institutions. These programs are convenient because the builder handles paperwork and the loan is integrated into the construction contract. However, convenience comes at a cost. Builder-arranged financing often carries rates of 10 to 18 percent and may include origination fees or early payoff penalties.
Some builders offer promotional rates like 0 percent for 12 months. Read the fine print carefully. Deferred interest promotions mean that if you do not pay off the full balance within the promotional period, you owe all the accumulated interest retroactively. A $50,000 pool with 18 months of deferred interest at 18 percent would cost an additional $13,500 if not paid in full by the deadline.
Before committing to any loan, calculate the total interest you will pay over the life of the loan. A $50,000 pool financed at 7 percent for 10 years costs approximately $69,680 total, meaning you pay $19,680 in interest. The same loan at 12 percent costs $86,100 total with $36,100 in interest. That $16,420 difference in interest could pay for pool heating, a deck, and years of maintenance chemicals.
Use our Home Equity Loan Calculator to compare monthly payments and total costs across different rates and terms. Factor in the pool's impact on your home value. If a $50,000 pool adds $35,000 to your home value, your net cost before financing is $15,000, but the financing interest adds to that net cost significantly over time.
An in-ground pool typically costs $35,000 to $100,000 depending on type, size, and features. Vinyl liner pools average $35,000 to $65,000, fiberglass pools range from $45,000 to $85,000, and concrete or gunite pools cost $50,000 to $100,000 or more. Site preparation, permits, and landscaping add to the total.
Above-ground pools are the cheapest, ranging from $1,500 to $15,000 installed. Among in-ground options, vinyl liner pools are the most affordable at $35,000 to $65,000. However, vinyl liners need replacement every 5 to 9 years at $4,000 to $8,000 each time, which increases long-term cost.
Annual pool maintenance averages $1,200 to $3,200 depending on pool type. This includes chemicals ($600 to $1,200), electricity for the pump ($500 to $1,200), water replacement, filter cleaning, and winterization. Concrete pools cost more to maintain than fiberglass or vinyl due to acid washing and resurfacing needs.
A pool can increase home value by 5 to 8 percent in warm climates where pools are common. In cooler regions, the return is lower and a pool may even be seen as a liability. The National Association of Realtors estimates pools add $30,000 to $60,000 to home value in favorable markets, but rarely recoup their full installation cost.
Above-ground pools take 1 to 3 days to install. Fiberglass in-ground pools take 2 to 4 weeks because the shell is pre-manufactured. Vinyl liner pools take 4 to 8 weeks. Concrete or gunite pools take 3 to 6 months due to excavation, steel reinforcement, shotcrete application, plaster curing, and finishing.
Most jurisdictions require a building permit, electrical permit for the pump and lighting, and plumbing permit. You also need a fence or barrier meeting local safety codes, typically at least 4 feet high with a self-latching gate. Permit costs range from $200 to $2,000 depending on the municipality.
Pool fencing costs $15 to $50 per linear foot depending on material. Aluminum fencing averages $25 to $40 per linear foot, mesh pool safety fencing runs $15 to $25, wrought iron costs $30 to $50, and glass fencing ranges from $80 to $200. A typical 120-foot perimeter fence costs $1,800 to $6,000 installed.
Saltwater pools cost $1,500 to $2,500 more upfront for the salt chlorine generator but save $300 to $500 per year on chemical costs. The salt cell needs replacement every 3 to 7 years at $500 to $1,200. Over 10 years, total cost of ownership is roughly similar, but many owners prefer the softer water feel of saltwater.
Total Pool Cost = Pool Materials + Installation + Features + Decking + Fencing
Pool Materials = Pool Area (sq ft) x Cost per sq ft (varies by type)
Installation = Pool Materials x Installation Multiplier (15-40%)
Decking = Sq ft x $35/sq ft (composite average)
Fencing = Linear ft x $28/ft (aluminum average)
Every formula on this page traces to a federal agency, central bank, or peer-reviewed institution. We cite the rule-makers, not secondhand blogs.
Found an error in a formula or source? Report it →
Calculations are for educational purposes only. Consult a qualified financial advisor for personalized advice.