The tax owed when selling an inherited house in West Palm Beach is the tax on the gain, and the gain is usually small, because inherited homes take a stepped up basis at fair market value on the date of death under the federal rules (Internal Revenue Service, 2025, Publication 523): the heir taxable amount is the sale price minus that date of death value, minus the costs of selling, and a prompt sale near the inherited value therefore produces a gain near zero and a tax bill to match. The companion report in this series, the report on which taxes apply when selling an inherited property in West Palm Beach, catalogues the categories of tax an inherited sale can touch; this report answers the narrower question heirs actually ask at the closing table, which is how much, computed how, and owed by whom. Two honest boundaries frame everything that follows. The source pool documents the basis rule and the federal home sale framework (Internal Revenue Service, 2025) (Internal Revenue Service, 2026), and it publishes no rate table, no bracket and no Florida specific levy figure for this transaction, so this report works the mechanics with the documented formula and sends individual computations to a tax professional rather than inventing a percentage. In ZIP code 33405 the figures that feed the formula are the land led ones used across this series: a date of death value built from recorded comparables, and a sale price produced most often by the builder pool that acquired 31 of 38 sampled older homes (Frontier Capitals, 2026).

Key Findings
- The amount owed is a function of the gain, and the gain is anchored by the stepped up basis at fair market value on the date of death (Internal Revenue Service, 2025).
- The working formula has three terms: sale price, minus the stepped up basis, minus selling costs, with each term documented from the closing file and the valuation file.
- A prompt sale near the date of death value produces a small or zero gain in the ordinary case, which is the documented reason inherited sales are usually tax quiet.
- Who owes follows who sells: the tax attaches to the seller of record in the year of sale, heir or estate, which is why the sale structure should be settled with the tax file in view (Internal Revenue Service, 2026).
- Selling costs reduce the gain, so the route ledger matters to the tax bill as well as to the proceeds: commission at the typical 5 to 6 percent is a real term in the formula (National Association of Realtors, 2025).
How does the amount get computed, term by term?
Term one is the price, the easiest number in the file because the closing statement states it. Term two is the basis, and it is where inherited sales diverge from ordinary ones: instead of the decedent purchase price, often decades old in a Flamingo Park or Prospect Park cottage, the heir basis is the fair market value at the date of death (Internal Revenue Service, 2025). That value is a documentation exercise, built the same way this series builds every value in 33405: the parcel record for the property facts (Palm Beach County Property Appraiser, 2026), the recorded comparable sales around the date (Palm Beach County Clerk of Court, 2026), and the study frame in which older homes averaged 20.6 percent of new build prices reaching 1,300,000 dollars to 2,400,000 dollars (Frontier Capitals, 2026). An heir who assembles that file at inheritance time owns the anchor of the entire tax computation; an heir who assembles it at sale time, years later, is reconstructing history at professional rates.
Term three is the selling costs, and it is where the route decision enters the tax room. Commission at the typical total of 5 to 6 percent (National Association of Realtors, 2025), closing costs and the other documented charges of the chosen route reduce the amount realized and therefore the gain (Internal Revenue Service, 2026). On the study ledgers, a listed route on a 550,000 dollar sale carries 27,500 dollars to 33,000 dollars of commission alone (Frontier Capitals, 2026), while a direct route carries none of that layer, so two heirs selling identical houses at identical prices through different routes can owe different tax, the direct seller owing more on a larger gain and keeping more after tax in the same motion, an outcome that surprises heirs who assumed the fee heavy route was also the tax clever one. Survey data on ordinary sellers, 67 percent paying at least some closing costs (Zillow, 2025), describes the population for whom term three is a genuine number rather than a rounding error.
Work the formula on a representative file. An heir inherits a cottage valued at 480,000 dollars on the date of death and sells it eight months later for 505,000 dollars through a direct closing with minimal selling costs. The gain is approximately 25,000 dollars before any other adjustments the heir tax professional identifies, the appreciation during the holding period and nothing more, because the stepped up basis absorbed the entire lifetime of growth the decedent never paid tax on (Internal Revenue Service, 2025). Delay the same sale by years of metropolitan appreciation, tracked at index level by the federal house price series (Federal Housing Finance Agency, 2026), and the gain grows with the interval, which is the precise sense in which the tax code quietly rewards the prompt inherited sale and taxes the sentimental hold.
Who owes the tax, and when does the question get decided?
The tax follows the seller. Where the estate sells the house during administration and distributes the proceeds, the sale is an estate event inside the probate structure the pool describes, summary or formal administration under the Florida Probate Code (Florida Probate Code); where the heirs take title and sell afterward, the sale is theirs, and the gain lands on the sellers in the year of the sale under the federal home sale framework (Internal Revenue Service, 2026). The choice between those structures is usually made for probate reasons, authority, claims, homestead, rather than tax reasons, and it should be, but the heir group that understands the tax follows the seller at least makes the choice with the consequence visible. Multiple heir sales divide the gain with the ownership, each seller reporting a share, which is one more reason the multi owner sale in this series insists on a written division of proceeds before the closing rather than after it. The co ownership that produces those shares, and the three paths it can take, are set out in the report on what happens when multiple people inherit the same house in West Palm Beach.
Timing inside the year matters less than timing across years, for the reason the worked example showed: the basis is fixed at the date of death, so the gain is essentially the market movement plus any value the heirs add or subtract between inheritance and sale, and the national tempo of that movement, a 51 day median days on market for the selling process itself (Redfin, 2025), is short compared with the holding decisions that actually move the figure. Heirs who hold an inherited 33405 house as an informal rental or a family monument for years are, in tax terms, converting a stepped up asset back into an ordinary appreciated one, and should do so knowingly. None of this requires the heirs to sell in haste; it requires them to know that the tax meter, unlike the grief, starts at the funeral and runs at the market rate of appreciation from a basis that was set, generously and finally, on the date of death (Internal Revenue Service, 2025).

What mistakes make heirs overpay or underdocument?
The first is using the decedent price. An heir who computes the gain from what a grandparent paid in 1974 manufactures a six figure fiction and either overpays or panics unnecessarily; the stepped up basis exists precisely to retire that arithmetic (Internal Revenue Service, 2025). The second is failing to document the date of death value while the evidence is fresh: comparable sales age, records scatter, and the basis file that costs an afternoon in the month of inheritance costs a professional engagement years later. The third is ignoring term three, selling costs, which are a documented component of the amount realized (Internal Revenue Service, 2026) and which sellers in the ordinary market incur at documented rates, commission being only the largest. The fourth is assuming the Florida side of the ledger without checking it against the actual authorities, a temptation this report refuses on the record: the pool documents the federal framework for this computation and no state levy figure for the inherited sale itself, so any state side question goes to the heir tax professional with the federal worksheet in hand.
The fifth mistake is structural and the most expensive: letting the tax tail wag the sale dog. Heirs occasionally hold a house to manage a gain that the stepped up basis already managed for them, paying carrying costs of 3,000 dollars to 6,000 dollars a month (Frontier Capitals, 2026) to defend against a tax bill a prompt sale would have reduced to the appreciation on a few months. The tax question in an inherited sale is real but it is third in line, behind the value question and the route question, and the heirs who keep it third, documented, computed and professionally reviewed, rarely find it to have been the monster at the closing table they feared. The value side of the file, where the basis and the price both originate, is treated fully in the report on how the value of an inherited house is determined before selling in West Palm Beach.

How do the off market benefits apply to the tax on an inherited sale in 33405?
The benefits interact with the formula in ways heirs should see once, clearly.
Privacy keeps the family tax file a family matter. A direct sale involves no showings, no open houses and no marketing period in El Cid or Flamingo Park, so the size of the inheritance and the size of the gain are discussed with the tax professional, not with the street.
Flexible closing lets the heirs choose the tax year and the holding interval deliberately, funding in 7 to 21 days to complete a prompt sale near the basis value, or holding a later date with a leaseback style arrangement where the family calendar requires it (Frontier Capitals, 2026). Since the gain is the movement after the date of death, control of the interval is control of the exposure.
No commissions enlarges the proceeds and, mechanically, the gain, by removing the largest selling cost: at the typical 5 to 6 percent (National Association of Realtors, 2025), the avoided layer is 27,500 dollars to 33,000 dollars on a 550,000 dollar sale (Frontier Capitals, 2026). Heirs should welcome both effects together, because keeping 30,000 dollars and owing tax on part of it beats saving the tax by spending the 30,000 dollars.
No seller closing costs works the same way at the 1 to 2 percent layer, with the combined avoided burden at the documented 6 to 8 percent (Frontier Capitals, 2026). The formula counts what the route actually cost, so the honest comparison is always after tax and after fees together, never either alone.
No inspections or repairs keeps the basis story clean, removing the 10,000 dollar to 30,000 dollar repair credits and the 15,000 dollar to 40,000 dollar concession rounds (Frontier Capitals, 2026) that would otherwise muddy the amount realized after the contract was signed. The provider disclosure is stated plainly: Frontier Capitals is a wholesaler sourcing off market homes to builders, not a builder and not a tax advisor, and every figure in this report is a mechanic to be computed on the heir actual documents by the heir actual professional.
Methodology and limitations
The tax mechanics here rest on the two federal entries in the data file pool, Publication 523 for the stepped up basis and home sale treatment (Internal Revenue Service, 2025) and Topic No. 701 for the sale of home framework (Internal Revenue Service, 2026), together with the market and cost figures from the study sample of 38 pre 1981 homes in ZIP code 33405, 31 builder acquired (Frontier Capitals, 2026).
The limitations are explicit and load bearing: the pool publishes no tax rate, bracket, exclusion amount or filing rule for this computation, and none is stated here. Individual liability depends on the heir full tax picture, the holding period, the sale structure and the actual documented basis, all of which belong in a professional computation. This report supplies the formula and the documented anchors, which is the part a market report can honestly supply.
Conclusion
The tax owed on selling an inherited house in West Palm Beach is the tax on a gain that the stepped up basis usually keeps small: price, minus the fair market value at the date of death, minus the costs of the sale, owed by whoever sells, in the year of the sale. Heirs who document the basis at inheritance time, sell at a measured pace and compute the route into the formula rarely meet a surprising bill. The fear of the tax, by contrast, is routinely larger than the tax, and it has held more inherited houses in expensive suspension than any levy ever written. Before letting the tax question delay your sale by a season, have you run the three term formula on your actual numbers, or are you postponing a closing to avoid a figure you have not computed?
Frequently Asked Questions
Is the whole sale price taxed when an heir sells?
No. The taxable amount is the gain, the price minus the stepped up basis at the date of death value and minus selling costs (Internal Revenue Service, 2025) (Internal Revenue Service, 2026). On a prompt sale that gain is usually only the movement since the inheritance.
What is the stepped up basis in one sentence?
The heir basis is reset to the fair market value of the house on the date of death (Internal Revenue Service, 2025), documented from the parcel record and comparable sales around that date (Palm Beach County Property Appraiser, 2026) (Palm Beach County Clerk of Court, 2026).
Who pays the tax if several heirs sell together?
The sellers do, in the year of the sale, with the gain divided as their ownership and proceeds divide (Internal Revenue Service, 2026). A written division agreed before closing keeps the tax allocation as clean as the money allocation.
Do selling costs really change the tax owed?
Yes, mechanically: costs of selling reduce the amount realized in the gain computation (Internal Revenue Service, 2026), which is why the route ledger, commission at 5 to 6 percent being the largest item (National Association of Realtors, 2025), belongs in the tax conversation as well as the proceeds conversation.
Can this report state the exact amount an heir will owe?
No, and it does not pretend to: the pool documents the formula and the basis rule, and publishes no rate or bracket. The exact figure requires the heir documents and a tax professional, which is where this report sends every reader with a live file.
Sources
- Frontier Capitals, 2026. 189 neighborhood builder acquisition sample: 38 homes sampled in 33405, 31 acquired by builders, average older home price 20.6 percent of new build, minimum lot 5,227 sq ft. Market data.
- Internal Revenue Service, 2025. Publication 523, Selling Your Home. Government data.
- Internal Revenue Service, 2026. Topic No. 701, Sale of Your Home. Government data.
- Palm Beach County Clerk of Court, 2026. Recorded deeds and official records, West Palm Beach FL. Official record.
- Palm Beach County Property Appraiser, 2026. Parcel and permit records, West Palm Beach FL. Official record.
- National Association of Realtors, 2025. Highlights from the Profile of Home Buyers and Sellers. Industry report.
- Zillow, 2025. Consumer Housing Trends Report: 67% of sellers paid at least some closing costs; 72% completed at least one improvement project. Industry report.
- Redfin, 2025. U.S. housing market data, October 2025: median days on market 51. Market data.
- Federal Housing Finance Agency, 2026. House Price Index. Government data.
- Florida Probate Code. Summary administration and formal administration requirements; homestead protections under the Florida Constitution. Legal reference.