Tax Implications of Business Succession Planning: Family Transfers, Buy-Sell Agreements, and Installment Sales

Business succession is a multi-year planning process that intersects estate tax, gift tax, income tax, and capital gains tax, and the tax outcome can vary by millions of dollars depending on the structure chosen. The fundamental tension is between transferring the business during the owner’s lifetime (which locks in the current value for gift tax purposes and shifts future appreciation out of the estate, but carries over the owner’s low basis to the recipient) and holding the business until death (which wastes the opportunity to remove appreciation from the estate, but gives the heir a stepped-up basis under IRC 1014, eliminating all built-in capital gains). The optimal strategy depends on the business’s current value, the owner’s age and health, the available gift tax exemption, the amount of built-in gain, and whether the successor is a family member, an employee, or an outside buyer.

What are the tax-efficient ways to transfer a business?

What are the tax differences between a cross-purchase and entity redemption buy-sell agreement?

In a cross-purchase agreement, the remaining owners buy the departing owner’s interest directly, and each buyer gets a stepped-up basis in the purchased interest equal to what they paid. In an entity redemption, the business itself buys back the departing owner’s interest, which means the remaining owners don’t get a basis step-up (their percentage ownership increases but their basis stays the same). Cross-purchase agreements funded with life insurance can become unwieldy when there are many owners (each owner needs a separate policy on every other owner). Entity redemptions are simpler administratively but can trigger the accumulated earnings tax if the corporation retains excess funds for the anticipated buyout. For S-Corps, redemptions that don’t completely terminate a shareholder’s interest are treated as distributions (potentially taxable as dividends from accumulated E&P), not as sales, which can produce unfavorable tax results.

Should I use a revocable or irrevocable trust for estate planning?

A revocable living trust avoids probate and provides management continuity if you become incapacitated, but offers no tax benefits because the assets are still in your taxable estate. An irrevocable trust removes assets from your estate, potentially reducing estate tax, and can protect assets from creditors. The trade-off is control: you cannot easily modify or revoke an irrevocable trust. For most small business owners below the estate tax exemption ($13.61 million in 2024), a revocable trust paired with proper beneficiary designations is sufficient. Business owners above the exemption (or expecting to exceed it before the 2026 sunset) should consider irrevocable structures like GRATs, SLATs, or intentionally defective grantor trusts.

How does the lifetime gift and estate tax exemption work for business owners?

The combined lifetime gift and estate tax exemption for 2025 is $13.99 million per individual ($27.98 million for married couples), meaning you can transfer this amount during life or at death without owing federal gift or estate tax. Gifts to individuals up to the annual exclusion ($19,000 per recipient for 2025) don’t count against your lifetime exemption and don’t require a gift tax return. The current elevated exemption is set to sunset after 2025 under the Tax Cuts and Jobs Act, potentially dropping to approximately $7 million (indexed for inflation), which creates urgency for business owners to lock in transfers at today’s higher levels. Transferring discounted interests in a family business entity (LLC or FLP) can leverage the exemption because valuation discounts for lack of marketability and lack of control can reduce the taxable value of the transferred interest by 25-40%.

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.