Free Homeowner Tool
What Does It Really Cost to Keep This House Each Month?
The monthly cost of holding a house — mortgage, taxes, insurance, utilities, upkeep, and the slow cost of a property getting worse — is the number that tells you whether waiting is expensive or cheap. Buyers pressuring a fast sale often inflate this figure to make any delay sound catastrophic. Knowing your real monthly carry lets you tell honest urgency from manufactured urgency.
Monthly Carry
Enter your holding costs above to see your monthly carry and cost-of-waiting numbers.
Worked Example
A vacant inherited house in Harford County — carry calculated
The house has been sitting empty for three months. A buyer is claiming "every week you wait costs you thousands." Here's the actual math.
| Cost Item | Monthly |
|---|---|
| Mortgage (P&I only, no escrow) | $1,200 |
| Property taxes (÷ 12) | $250 |
| Vacant-home insurance | $175 |
| Utilities (minimal — heat + water) | $95 |
| Lawn & exterior upkeep | $125 |
| Deterioration drift (slow roof leak, no climate control) | $225 |
| Total monthly carry | $2,070 |
All figures are illustrative estimates for educational purposes. Deterioration estimates vary significantly by property condition, age, and climate. Not legal, tax, or financial advice.
How to use this number
The monthly carry figure is the most honest urgency test available. Once you know it, any buyer's claim about "the cost of waiting" becomes checkable math instead of pressure.
If your carry is modest ($500–$900/mo). A buyer claiming "every week you wait costs you thousands" is manufacturing urgency. Your real weekly cost is $125–$225. You have time to get multiple opinions, read the contract carefully, and compare all five paths. Don't compress your decision under false urgency.
If your carry is significant ($2,000–$4,000/mo). Speed genuinely has value. Each month of delay is a real reduction in your net proceeds. In this case, a quick close — even at a modest discount — might net more than a longer listing process. The net sheet calculator will show you the crossover for your exact numbers.
The deterioration drift input is the most overlooked. A vacant house losing $300/month to slow deterioration — a small roof leak, deferred maintenance, HVAC aging without service — adds $3,600 to your annual carry and $1,800 to every six-month delay. This is real money that disappears quietly and is never recovered in the sale price. Estimate it honestly, even if it's uncomfortable.
Common questions
What is a carrying cost on a house?
Carrying cost is the total monthly expense of owning a property you're not actively selling or occupying — mortgage or PITI payment, property taxes, insurance, utilities, maintenance, HOA, and the slow cost of a neglected or vacant property getting worse. It is the real cost of waiting, measured in dollars per month.
How much does an empty house cost per month?
Typically $800–$3,000+ per month depending on the mortgage balance, property taxes, insurance (which often increases 50–100% for vacant properties), utilities kept on for safety, and deterioration drift. A house with a large mortgage and active deterioration can cost $4,000–$5,000/month to sit empty — a genuine urgency case. A paid-off house in good condition might cost $400–$600/month — time to be patient.
Do carrying costs affect which sale path wins?
Yes — significantly. At $2,000/month, every extra month on the market costs $2,000 of net proceeds. A four-month listing versus a two-week cash close costs $7,500 in carry alone before factoring in commission. At high carry levels, a lower cash offer can net more than a higher listed price. At low carry levels, taking time to list typically wins. The Five-Exit Net Sheet shows you the exact crossover for your numbers.
What is deterioration drift?
Deterioration drift is the ongoing cost of a vacant or neglected property getting quietly worse — a roof leak worsening, HVAC systems failing without service, pests establishing, pipes freezing in winter, vegetation encroaching. A deferred repair that costs $3,000 today may cost $15,000 in six months. Estimating this honestly — even a rough $200–$400/month placeholder — gives you a more accurate carry number than ignoring it entirely.
When is a buyer's urgency claim legitimate versus manufactured?
Legitimate: your carry is high and every month genuinely costs you significant money. Manufactured: a buyer says "every week costs you thousands" when your actual carry is $600/month — about $138/week. Knowing your real carry lets you evaluate any urgency claim on actual math. A buyer who refuses to show you the carry calculation on their offer is usually hiding something.
Related tools & reading
General information only — not legal, tax, or financial advice. Figures are illustrative estimates. Consult qualified professionals before making any real estate decision.
Want this folded into a full comparison?
A Home Transition Review takes your real carry number and runs all five paths with verified local values — in writing, no commitment required.