The true cost of a bathroom remodel
A new bathroom is often sold as an investment that pays for itself when you sell. It rarely does. This takes the quote, adds any loan interest, takes off what the remodel is likely to add to the sale price, and shows what the rest costs for each year you use it. It starts with typical US figures. Replace them with your quote.
The true cost of a bathroom remodel
Over 10 years in the house
$6,000
- Cost of the remodel
- $12,000
- Loan interest
- $0
- Added to the sale price
- −$6,000
- Cost per year you live with it
- $600
- Ahead if the money stayed invested
- $17,186
You get back $6,000. The other $6,000 is the price of a nicer bathroom.
That is $600 a year for the 10 years you live with it. Left invested at 7% instead, the money would leave you $17,186 better off when you sell.
Year by year
The running total paid out. It falls in the final year, when the house is sold and part of the cost comes back. Leaving the bathroom as it is costs nothing, which is the flat line.
Show the figures for every year
| Year | Remodel, this year | Leaving it, this year | Remodel, total so far | Leaving it, total so far |
|---|---|---|---|---|
| 1 | $12,000 | $0 | $12,000 | $0 |
| 2 | $0 | $0 | $12,000 | $0 |
| 3 | $0 | $0 | $12,000 | $0 |
| 4 | $0 | $0 | $12,000 | $0 |
| 5 | $0 | $0 | $12,000 | $0 |
| 6 | $0 | $0 | $12,000 | $0 |
| 7 | $0 | $0 | $12,000 | $0 |
| 8 | $0 | $0 | $12,000 | $0 |
| 9 | $0 | $0 | $12,000 | $0 |
| 10 | -$6,000 | $0 | $6,000 | $0 |
How this is worked out
What the remodel costs
- The job. The full cost, paid in cash or partly borrowed. If you borrow, interest is worked out monthly on the remaining balance, and any loan left when you sell is paid off then.
- What comes back. A share of the cost is added to the sale price when you move. That is taken off, and what remains is the true cost of the new bathroom.
Cost per year you live with it
The true cost divided by the years you stay. A remodel is something you use every day, so this is the fairest way to judge it: is the new bathroom worth that much a year to you?
If the money stayed invested
The calculator also works out what you would have if you left the bathroom alone and invested the money at the return you set, after allowing for what the remodel adds to the sale price. It is the cost of the choice, not an argument against making it.
What is not counted
- Cost overruns. Quotes grow once walls and floors are opened.
- Lower repair or energy bills, if the old bathroom was failing or wasteful.
- Higher property tax, where a permit triggers a reassessment.
- The weeks of living without a working bathroom.
- Tax on investment gains, and inflation. All figures are in the dollars of the year they are paid.
What moves the answer for a bathroom
- Moving the plumbing. Keeping the toilet, basin and shower where they are is the biggest single saving. Relocating drains is where modest quotes become large ones.
- How far above the street you go. Buyers pay for a bathroom that is clean, modern and in keeping with the house. They pay much less for stone and fittings well beyond what neighbouring homes have.
- Whether it fixes a problem. Replacing a leaking, dated or only bathroom returns more than upgrading one that was already fine.
- How long you stay. The cost per year falls with every year you use it, so the same remodel is easier to justify in a house you plan to keep.
Where the starting figures come from
Cost of the remodel. A bathroom remodel typically costs around $6,600 to $18,000, according to NerdWallet’s cost guide, with high-end jobs running far beyond that. The calculator starts at $12,000, near the middle of that range.
Share you get back. The 50% is from the 2025 Remodeling Impact Report by the National Association of Realtors, which compares what remodelers say a project costs with what estate agents say it adds at sale. It is an estimate of opinion, not a record of actual sales, and it varies a great deal by neighbourhood.
A second opinion. The remodeling trade’s yearly Cost vs. Value Report publishes its own cost and resale figures for common projects, by region. Its figures differ from the Realtors’, sometimes by a lot, which is a good reason to treat any single percentage with caution. Look up your region there and try both numbers.
Our assumptions. The loan rate, the 10 years and the investment return are our starting estimates.