Idaho Estate Planning: Free Wills, Trusts & Calculators

Idaho operates under community property law, one of only nine states to do so. Most assets acquired during marriage belong equally to both spouses regardless of whose name is on the title or who earned the income. This fundamental difference from common law states shapes every aspect of estate planning here, from how property passes at death to what a surviving spouse automatically inherits.

Like all states, Idaho recognizes formally executed wills and living trusts as valid estate planning tools. A standard will here requires 2Idaho Code § 15-2-502Verified Jul 15, 2026View source adult witnesses, and adding a notarized self-proving affidavit can streamline the probate process later. The state also recognizes holographic (handwritten) wills, though these have stricter proof requirements and are more vulnerable to legal challenges.

In Idaho, advance healthcare directives only need your signature to be valid—witnesses and notarization are not legally required, though adding them may help with acceptance by healthcare providers.

If you die without a will in Idaho, your heirs must survive you by at least 120 hoursIdaho Code § 15-2-102Verified Jul 15, 2026View source to inherit anything. This "survival period" exists to prevent property from passing through multiple estates in quick succession when family members die close together in time, such as in an accident. The amount a surviving spouse inherits without a will depends on whether your parents are still alive. If they are, your spouse may have to share the estate with them—a result that surprises many people and underscores why having a will matters.

Smaller estates under $100,000Idaho Code § 15-3-1201Verified Jul 14, 2026View source can use a simplified transfer process that avoids full probate proceedings.

Idaho does not impose a state estate tax or inheritance tax, which means estates are only subject to the federal estate tax (currently exempting the first $15,000,00026 USC 2001(c), 2010; P.L. 119-21 §70106Verified Jul 13, 2026View source per person, or $30,000,00026 USC 2001(c), 2010; P.L. 119-21 §70106Verified Jul 13, 2026View source for married couples using portability). This is a meaningful advantage over the states that layer their own death taxes on top of the federal system.

Idaho does not allow transfer-on-death deeds for real estate. Without this option, real property must pass through probate or be held in a trust to avoid court proceedings. Transferring property into a revocable trust does not trigger a property tax reassessment in Idaho, so property taxes remain at their current level.

Idaho provides a statutory homestead exemption protecting up to $175,000 in home equity from creditors. While not as strong as the constitutional protections in states like Texas or Florida, this still provides meaningful protection for the family home. Executors must publish a notice to creditors, who then have 4 monthsIdaho Code § 15-3-801Verified Jul 14, 2026View source to file claims against the estate.

Idaho automatically revokes an ex-spouse as beneficiary on life insurance, retirement accounts, and similar designations upon divorce. However, these automatic revocations can be overridden by a divorce decree or by re-designating the ex-spouse after the divorce.

Idaho fully authorizes remote online notarization (RON) for estate planning documents, including wills, trusts, healthcare directives, powers of attorney. RON covers the notarization step; whether the whole signing can happen remotely also depends on whether the document's witnesses may attend by video.