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How much do condo or townhouse HOA fees really cost over 10, 20, or 30 years? Model monthly dues with annual growth, special assessments, and see the total — plus what that money could become if invested instead.
Total cost
$214,817.16
Monthly dues total
$199,817.16
Special assessments
$15,000
If invested at 7%
$727,974.18
$350/month HOA at 3% annual growth over 30 years costs $214,817.16 total. Special assessments every 10 years add $15,000. If invested at 7%, the same monthly amount could grow to $727,974.18.
Source: FinCalc server-rendered example using the same formulas as the interactive calculator.
Monthly dues: $199,817.16 + special assessments: $15,000. Monthly average: $596.71.
Total HOA cost
$214,817.16
Monthly dues total
$199,817.16
Special assessments
$15,000
Monthly average
$596.71
Years
30
If invested at 7%
$727,974.18
| Year | Monthly HOA | Annual dues | Special | Cumulative |
|---|---|---|---|---|
| 1 | $350 | $4,200 | — | $4,200 |
| 2 | $360.5 | $4,326 | — | $8,526 |
| 3 | $371.32 | $4,455.84 | — | $12,981.84 |
| 4 | $382.45 | $4,589.4 | — | $17,571.24 |
| 5 | $393.93 | $4,727.16 | — | $22,298.4 |
| 6 | $405.75 | $4,869 | — | $27,167.4 |
| 7 | $417.92 | $5,015.04 | — | $32,182.44 |
| 8 | $430.46 | $5,165.52 | — | $37,347.96 |
| 9 | $443.37 | $5,320.44 | — | $42,668.4 |
| 10 | $456.67 | $5,480.04 | $5,000 | $53,148.44 |
| 11 | $470.37 | $5,644.44 | — | $58,792.88 |
| 12 | $484.48 | $5,813.76 | — | $64,606.64 |
| 13 | $499.02 | $5,988.24 | — | $70,594.88 |
| 14 | $513.99 | $6,167.88 | — | $76,762.76 |
| 15 | $529.41 | $6,352.92 | — | $83,115.68 |
| 16 | $545.29 | $6,543.48 | — | $89,659.16 |
| 17 | $561.65 | $6,739.8 | — | $96,398.96 |
| 18 | $578.5 | $6,942 | — | $103,340.96 |
| 19 | $595.85 | $7,150.2 | — | $110,491.16 |
| 20 | $613.73 | $7,364.76 | $5,000 | $122,855.92 |
| 21 | $632.14 | $7,585.68 | — | $130,441.6 |
| 22 | $651.1 | $7,813.2 | — | $138,254.8 |
| 23 | $670.64 | $8,047.68 | — | $146,302.48 |
| 24 | $690.76 | $8,289.12 | — | $154,591.6 |
| 25 | $711.48 | $8,537.76 | — | $163,129.36 |
| 26 | $732.82 | $8,793.84 | — | $171,923.2 |
| 27 | $754.81 | $9,057.72 | — | $180,980.92 |
| 28 | $777.45 | $9,329.4 | — | $190,310.32 |
| 29 | $800.77 | $9,609.24 | — | $199,919.56 |
| 30 | $824.8 | $9,897.6 | $5,000 | $214,817.16 |
FinCalc AI
With 3% annual growth, your HOA in year 30 would be $824.8/month — about 2.4× your current dues. If the same monthly amount were invested at 7%, it could grow to $727,974.18.
FinCalc AI
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Data and assumptions align with official publications. For verification and current figures:
At $350/month with 3% annual growth, 30 years of HOA costs about $200,000. With special assessments every 10 years ($5,000 each), add roughly $15,000. Total approaches $215,000. Most buyers underestimate HOA because they focus on monthly dues without projecting growth or assessments.
HOA dues often rise 2–4% annually, sometimes faster in high-inflation periods or when reserves are underfunded. Insurance and maintenance costs drive increases. Our calculator lets you model different growth rates to stress-test long-term costs.
Special assessments are one-time charges for major repairs (roof, elevator, siding) or reserve shortfalls. Many condos face them every 5–15 years. A $5,000–$15,000 assessment every 10 years is a common planning assumption. Check the association's reserve study before buying.
Yes. Lenders include HOA in your debt-to-income ratio. A $400 HOA counts like $400 of mortgage payment. Use our House Affordability calculator with HOA, then add this HOA Cost calculator to see total ownership cost over your expected hold period.
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