1. Property taxes
Set by your county, billed once or twice a year, and folded into your monthly mortgage payment via escrow. The dollar amount depends on the home's assessed value and the local tax rate.
What surprises buyers:
- Wide variation by state. Hawaii: 0.3%. New Jersey: 2.5%. California: 1.1% (with caps). Texas: 1.8% (no state income tax to offset).
- Reassessments. When you buy, the home is often reassessed at the purchase price, which can raise taxes meaningfully above what the previous owner paid.
- Year-over-year increases. Many areas reassess every 1–3 years; rising values mean rising taxes.
Plan for taxes to be $300–$1,500/month on a typical home. The Loan Estimate will show your starting figure but they will move over time.
2. Homeowner's insurance
Required by your lender. Covers the home structure, your belongings, and liability if someone is injured on the property.
What surprises buyers:
- Premium increases nationally. Insurance has been climbing 10–20%/year in many markets, especially areas with wildfire, hurricane, or flood exposure.
- Separate flood and earthquake. Standard policies usually exclude these — separate policies are needed where the risk applies.
- Deductibles. Higher deductible lowers premium but raises your out-of-pocket if something happens.
Typical premium: $1,200–$3,500/year. In high-risk areas, can be much more.
3. HOA dues
If your home is in an HOA-governed community (condos, townhomes, planned communities), there are monthly or annual dues.
What surprises buyers:
- Varies enormously. $50/month for a basic suburban HOA. $1,500+/month for a high-rise condo with concierge, gym, pool, maintenance.
- Special assessments. When the HOA needs major work (new roof on the building, parking lot resurfacing), members get billed a one-time assessment on top of regular dues. Can be thousands.
- Restrictions. HOAs can dictate exterior paint colors, fencing, landscaping, rentals, pets. Read the CC&Rs before buying.
4. Maintenance and repairs
The biggest cost most first-time buyers underestimate. Plan on 1–3% of home value per year — averaged over time.
What this covers:
- HVAC service and replacement (~$5,000–$15,000 every 15–20 years)
- Roof (~$10,000–$30,000 every 20–30 years)
- Water heater (~$1,200–$3,500 every 10–15 years)
- Appliances (~$500–$3,000 each)
- Plumbing repairs, paint, landscaping, pest control, etc.
The 1–3% is average; reality is lumpy. You go years with minimal maintenance, then one year you replace the roof and HVAC at once.
5. Utilities
Often higher than what you paid as a renter, especially if you're moving from an apartment to a single-family home.
What changes:
- Larger square footage = more heating/cooling. A 2,500 sq ft house costs meaningfully more to climate-control than a 900 sq ft apartment.
- Water and sewer bills. Often included in apartment rent; separate bills as a homeowner.
- Trash collection. Sometimes a municipal fee, sometimes a private service.
- Lawn care, snow removal, pool maintenance. Either DIY (your time + equipment) or hire out ($50–$300/month).
Closing costs (a one-time "hidden" cost)
Bonus item: the upfront closing costs that hit at purchase, separate from down payment. 2–5% of purchase price for lender fees, title insurance, appraisal, prepaid taxes and insurance, and recording fees. On a $500,000 home, that's $10,000–$25,000.
What to do about it
- Build a maintenance reserve. 1% of home value/year as a separate savings account, untouched except for repairs.
- Get a home warranty for year 1. Covers some major systems if they break early. Often a seller concession at closing.
- Shop insurance annually. Premiums vary 30%+ across carriers for the same coverage.
- Read your HOA's reserves. Well-funded reserves mean fewer special assessments. Get the financials before buying.
Modeling a purchase and want to see all-in monthly cost?
We'll send the full PITI plus realistic estimates for HOA, maintenance, and utilities. Reach out.