How to Plan an Estate and Manage Inheritance: A Step-by-Step Guide

Estate planning is the process of organizing who will receive your assets, who will make decisions on your behalf if you become incapacitated, and how taxes and legal procedures such as probate will be handled after death. The core elements are largely the same across jurisdictions: an inventory of assets, a will or trust, designated beneficiaries, named decision-makers, and a plan for taxes, according to the estate-planning guide published by Annuity.org.

Why interest in inheritance planning is rising

South Korea illustrates how inheritance rules can drive sudden public attention to estate planning. According to the Korea Times, citing consultancy Henley & Partners, the net outflow of Korean millionaires reached an estimated 2,400 people in 2025, double the 1,200 recorded in 2024 — the fourth-largest such outflow in the world, behind the United Kingdom, China and India. The Korea Times reports that Korea's inheritance tax rate can reach up to 60 percent, which it describes as the world's highest, and that the Korea Chamber of Commerce and Industry has warned inheritance tax revenue could rise to 35.8 trillion won by 2072 from 9.6 trillion won in 2024 if the rules are not changed.

South Korea is also tightening, not loosening, some inheritance rules for family-owned businesses. Under a 2026 reform described by the Korean legal site atlaw.kr, the required minimum ownership period to qualify for a family-business inheritance deduction effectively doubles from 10 to 30 years, and companies managed for under 20 years lose eligibility for relief entirely, effective from July 1, 2027. The reform also doubles the post-succession holding period that heirs must meet, from five to ten years, among other new conditions.

Step 1: Inventory everything you own

The first practical step is a complete list of assets and liabilities: bank and investment accounts, real estate, retirement accounts, life insurance policies, vehicles, valuable personal property and digital assets, together with the relevant institution, account type and identifying details, according to Annuity.org's estate-planning checklist.

Step 2: Name beneficiaries and key people

Beneficiary designations on retirement accounts and life insurance policies pass those assets directly to the named person and generally override instructions in a will, so they need to be reviewed after marriage, divorce, births or other major life changes, Annuity.org notes. The guide also recommends naming an executor to oversee the estate through probate, a guardian for minor children if applicable, and agents under financial and health care powers of attorney.

Step 3: Put the foundational documents in place

Annuity.org lists ten documents commonly used in a complete estate plan: a last will and testament; a living trust to manage assets and potentially avoid probate; an advance health care directive; a financial power of attorney; beneficiary designations; a living will covering end-of-life treatment preferences; a HIPAA authorization allowing access to health information; a letter of instruction with non-legal guidance; an inventory of assets and liabilities; and documents to formally fund a trust.

Step 4: Understand the tax thresholds that apply to you

In the United States, the Internal Revenue Service sets a basic exclusion amount below which no federal estate tax return is generally required. The IRS states that, following the Working Families Tax Cuts Bill signed into law on July 4, 2025, the basic exclusion amount for estates of people who die in 2026 rises to $15,000,000. The IRS also confirms that the annual per-recipient gift tax exclusion for 2026 remains $19,000, meaning gifts up to that amount to any number of people do not require a gift tax return or reduce a person's lifetime exemption.

The IRS notes that most relatively simple estates — cash, publicly traded securities, small amounts of other easily valued assets, with no special deductions or elections — do not require an estate tax return to be filed. A return becomes necessary when the gross estate, plus adjusted taxable gifts, exceeds the year's threshold.

Step 5: Review the plan periodically and communicate it

Annuity.org recommends reviewing an estate plan every three to five years and after major life events such as births, marriages, moves, changes in income or changes to tax law. Letting an executor, trustee and health care agent know of their roles in advance, and telling family members where documents are kept, is part of the process, the guide states.

Key figures at a glance

• List every asset, account and liability, including digital assets.
• Review and update beneficiary designations after major life events.
• Name an executor, guardian (if needed), and financial/health care agents.
• Put a will, power of attorney and health care directive in writing.
• Check whether your estate is near relevant tax thresholds.
• Revisit the plan every three to five years or after a major change.