Yes, selling a portion of your land is legal in every state, but it takes more than finding a buyer and signing a deed. You have to divide the parcel through a local government approval called a lot split or subdivision, hire a surveyor to establish the new boundaries, deal with any mortgage covering the property, transfer the new lot by deed, and pay capital gains tax on the profit. Expect two to six months from start to finish, and expect the details to matter.
Get the Split Approved by Your Local Government
Start at your local planning or zoning office. Every county and municipality sets its own rules for dividing land, and until you know whether your property qualifies under those rules, nothing else you do matters.
Three requirements catch most landowners. Minimum lot size means each resulting parcel has to meet a set acreage or square footage. Road frontage rules require each new lot to have a certain amount of direct access to a public road. Building setbacks dictate how far structures must sit from property lines, which can limit where a house could go on the new parcel. If the division you’re proposing violates any of these, the application gets denied.
Simple two-lot splits are often handled administratively, with a planning director reviewing and approving the application in 30 to 60 days. Larger subdivisions creating multiple lots almost always go to a public hearing where neighbors can raise objections. You’ll typically need to submit a preliminary plat showing the proposed lot lines, road access, drainage, and utility connections. Application fees range from a few hundred to over a thousand dollars.
Even a parcel large enough to split on paper can be denied if the new lot lacks adequate infrastructure. In areas without public water or sewer, the new lot usually has to demonstrate it can support a well and septic system. That often means a soil percolation test to confirm the ground can absorb wastewater, and a failing result can end the project.
Hire a Surveyor and Get a Legal Description
You cannot sell a vaguely described chunk of your backyard. The piece you’re selling needs precise, legally established boundaries, and only a licensed land surveyor can produce them. The surveyor measures the property, places permanent markers at each corner of the new parcel, and produces a plat map showing the exact boundaries, dimensions, and area of each lot.
The plat generates a legal description you’ll need on every document that follows. This is a technical description using either metes-and-bounds references (directions and distances from a fixed starting point) or lot-and-block references tied to a recorded plat. A street address is not enough for a deed or a title insurance policy. The legal description is what makes the new parcel uniquely identifiable in the public record.
A straightforward boundary survey for a lot split generally runs between $1,200 and $5,500. Complex terrain, heavy woods, or parcels requiring historical boundary research push the cost higher, and a full subdivision plat with infrastructure mapping costs more still. Get quotes from at least two licensed surveyors before committing.
Deal With Any Mortgage on the Property
If the land is paid off, you can skip this step. If it’s mortgaged, this is where sales stall or collapse.
The problem is the due-on-sale clause in nearly every mortgage. Under federal law, that clause lets the lender demand full repayment of the loan balance if you sell or transfer any part of the property without written consent. The statute preempts state laws that might otherwise restrict the lender’s right, so acceleration is a real threat, not a theoretical one.
The workable solution is a partial release of the mortgage lien. That’s a formal agreement in which the lender removes its lien from the portion being sold while keeping the mortgage secured by the land you’re keeping. Lenders are not required to agree, and when they do, they scrutinize the request. For loans backed by Fannie Mae, the mortgage has to be current and originated more than 12 months before the request. The lender will typically order an appraisal of the remaining property to confirm it still provides adequate collateral, and many lenders require part of the sale proceeds to go toward paying down the loan.
Start this conversation early, before you spend money on surveys and applications. If the lender refuses, your options narrow to paying the mortgage off entirely or walking away from the sale.
Grant Any Easements the New Lot Needs
Splitting land often creates access problems that didn’t exist when it was one parcel. The most common is a landlocked lot. If the piece you’re selling doesn’t touch a public road, the buyer has no legal way to reach it unless you grant an easement across your remaining land.
Most states recognize an easement by necessity, which can arise automatically when a landowner sells off a portion that becomes landlocked. The legal theory is that both parcels were once under common ownership, so the law presumes the seller intended the buyer to have access. Relying on that implied easement is a mistake. Disputes over its location, width, and maintenance can drag on for years. Spell the easement out explicitly in the deed or in a separate recorded easement agreement.
Do the same for utilities. If the new lot needs water, sewer, electric, or gas lines that must cross your remaining property, a utility easement grants that right. The document should specify where the corridor runs, how wide it is, and who handles maintenance. Record it with the county alongside the deed so future owners of both parcels are bound by its terms.
Transfer the Lot by Deed
Once the survey is complete, the split is approved, and any mortgage issue is resolved, you transfer ownership through a new deed. The deed names you as seller and the buyer as new owner, includes the legal description from the survey, and conveys whatever type of title you’re offering. Most buyers will expect a warranty deed, which guarantees you own the property and have the right to sell it.
You sign the deed in front of a notary, and the executed deed is filed with the county recorder’s office. Recording makes the transfer part of the public record and establishes the buyer’s ownership against future claims. Recording fees are modest compared to everything else in the process.
The buyer should also buy a separate owner’s title insurance policy for the new parcel. Title insurance protects against defects a standard search might miss, like an old lien, a boundary dispute, or a recording error. Because the lot didn’t previously exist as a separate parcel, its title history is bound up with yours, which makes coverage particularly worth having. You may want to update your own policy to reflect the reduced property.
Plan for the Tax Bill
Selling part of your land is a taxable event. The IRS treats it as a capital gain or loss, and the amount you owe depends on how long you owned the property and how much profit you made.
Allocating Your Cost Basis
The trickiest part of the math is the cost basis of the portion you sold. You can’t just use what you paid for the whole property. IRS Publication 551 requires you to allocate basis by multiplying your total cost by a fraction: the fair market value of the lot you’re selling divided by the fair market value of the entire original tract.
Say you paid $200,000 for 20 acres, and you’re selling a 5-acre parcel worth $75,000 out of a total current value of $300,000. Your basis in the sold portion is $200,000 × ($75,000 ÷ $300,000), or $50,000. On a $75,000 sale, your taxable gain is $25,000. You don’t recover your full cost basis until you’ve sold every piece of the original tract, so getting the allocation right now avoids problems later.
Capital Gains Rates
Land held more than a year before sale qualifies for long-term capital gains rates. For 2026, those rates are 0%, 15%, or 20% depending on taxable income and filing status. Single filers with taxable income up to $49,450 pay 0%, the 15% rate applies up to $545,500, and income above that is taxed at 20%. Land held for a year or less is taxed as ordinary income at your regular rate, which is almost always higher.
High earners may also owe an additional 3.8% net investment income tax. Report the sale on Form 8949 and Schedule D. If the land was used in a business or held as rental property, Form 4797 may also apply.
Deferring the Gain With a 1031 Exchange
If you plan to reinvest the proceeds into other real property, a like-kind exchange under IRC Section 1031 lets you defer the capital gains tax. You have 45 days from the sale to identify the replacement property and 180 days to close. Section 1031 does not apply to property held primarily for sale, so if you’ve been subdividing and selling lots as a business, the deferral is off the table.
Property Tax Reassessment
After the split, your local assessor will reassess both parcels separately. Your bill on the remaining land should drop to reflect the smaller size, but the timing varies by jurisdiction. Don’t assume the adjustment happens automatically. Contact the assessor’s office after the deed is recorded to confirm both parcels are assessed correctly.
How Long the Whole Process Takes
A simple lot split, where zoning already allows the division and no variances are needed, can sometimes be done in two to three months. Complex subdivisions involving public hearings, infrastructure requirements, or mortgage negotiations can stretch to six months or longer. The survey, lender approval, and government review each run on their own clocks, and a delay in one pushes everything back. Starting the mortgage conversation and the zoning inquiry at the same time, rather than one after the other, can save weeks.