This presentation examines how the One Big Beautiful Bill Act of 2025 reshapes estate planning by shifting greater attention from federal estate tax avoidance to income tax basis planning. It will discuss the practical importance of basis adjustments at death, carryover basis for lifetime gifts, community property planning, portability, trust design, charitable planning for IRD assets, valuation issues, and drafting techniques that help preserve flexibility and reduce income tax exposure for heirs and beneficiaries.