# She'll Put Her Son on the Deed and Keep Living in the House > Adding a son to property deed skips probate but risks half step-up tax benefit. - Title: She'll Put Her Son on the Deed and Keep Living in the House - Summary: Adding a son to property deed skips probate but risks half step-up tax benefit. Adding a son to a home deed avoids probate but may cost him half the tax… - Keywords: step-up in basis, deed, son, tax benefit, probate, house, step-up, tax, estate planning, house deed, step-up tax, house ownership - Source: 24/7 Wall St. — https://247wallst.com/personal-finance/2026/10/12/shell-put-her-son-on-the-deed-and-keep-living-in-the-house-everyone-will-tell-her-that-costs-him-half-the-step-up-it-wont-because-she-paid-for-every-dollar-of-it - Author: David Beren - Published: 2026-10-12T15:07:12+00:00 - Read time: 1 min - Topics: step-up in basis, deed, son, tax benefit, probate, house, step-up, tax, estate planning, house deed, step-up tax, house ownership ## Friends' Advice Her friends advise adding her son to the deed to skip probate while she keeps living there. > Her friends all give her the same advice: put your son on the deed, keep living there, and the house skips probate. ## The Step-Up Myth Adding him to the deed costs him half the step-up in basis when she dies, a warning people share. > Someone who read a blog post warns her that adding him will cost him half the step-up in basis when she dies. ## Full Step-Up Rule If she paid for the entire house, her son gets a full step-up in basis when she dies. > If the deed creates joint tenancy with right of survivorship and she paid for the entire house, her son generally receives a full step-up when she dies. ## Step-Up Definition Step-up in basis resets tax cost to the property’s value on the owner’s death date. > A step-up in basis means that when you inherit property, your tax cost resets to the property’s value on the owner’s date of death. ## Case-Shiller Index National home prices stood at a Case-Shiller index reading of 337.3 in July 2.026. > National home prices stood at a Case-Shiller index reading of 337.3 in July 2026, on a scale where Jan 2000 = 100. ## 26 U.S. Code §2040(a) The rule states that joint tenants with right of survivorship get full step-up if the decedent paid for the entire property. > The rule is 26 U.S. Code §2040(a). When people who aren’t married to each other own property as joint tenants with right of survivorship, the deceased’s estate includes the full value 'except such part thereof as may be shown to have originally belonged to such other person.' ## IRS Proof Requirements Proving she paid for the house requires closing statements, mortgage history, and bank records from decades ago. > If the IRS asks, the family needs the closing statement, the mortgage payment history, and bank records showing her money paid for everything, possibly 20 or 30 years later. ## Gift Tax Implications Adding him to the deed counts as a gift, requiring Form 709 filing with a $19,000 annual exclusion. > Giving him a share of the house is a gift. The 2026 annual gift exclusion remains at $19,000, and a share of a house almost always exceeds it. ## Five Risks The deed carries five risks: lawsuits, loss of control, Medicaid penalties, early death, and higher taxes. > His problems reach the house. A lawsuit judgment, a divorce, or a bankruptcy can attach to his share, and in some states a creditor can ask a court to force a sale. ## Medicaid Impact Medicaid may penalize her with a 60-month look-back period if she gives away part of the house. > Medicaid counts it as a transfer. Giving away part of the house for nothing can trigger a penalty period under the 60-month look-back, which we’ve covered in detail. ## Better Alternatives Transfer-on-death deeds, revocable trusts, and enhanced life estates avoid probate and keep full step-up benefits. > Transfer-on-death (beneficiary) deed: Only available where state law allows it. Maryland’s version takes effect October 1, 2026. It avoids probate, leaves her in full control, keeps the full step-up, and isn’t a gift while she’s alive. ## Key takeaway Adding a son to a home deed avoids probate but may cost him half the tax step-up when the owner dies, as he paid for every dollar of the house.