Quick answer: the most common mistake is never recording a new deed into the trust's name for real estate. New Jersey has no transfer-on-death deed to fall back on, so an unfunded house has no backup path around probate. See how the numbers change in the New Jersey probate vs living trust calculator.
Signing ≠ funding
1. Real estate deed never recorded — the #1 mistake, and worse in New Jersey
Moving real estate into a trust requires a new deed, signed and recorded with the county clerk, naming the trust as owner. This is the step most often skipped, and in New Jersey the consequence is sharper than in states that offer a transfer-on-death deed as a fallback: with no TOD deed option available at all, an unrecorded deed leaves that property with no backup path around probate. It goes through the full process — statutory commission, Surrogate's Court, and, if it's not left to a Class A beneficiary, an inheritance tax waiver before the transfer can even be recorded.
2. Financial accounts left titled individually
Bank and brokerage accounts don't join a trust automatically. Each one has to be retitled into the trust's name, or the institution needs a copy of the trust document plus a change-of-ownership form. Accounts opened after the trust was created are especially easy to forget.
3. Assets acquired after the trust was created
A trust only holds what's actually been transferred into it. A car, account, or property acquired afterward stays outside the trust unless someone deliberately adds it — which is why periodic review matters as much as the initial funding.
4. Treating the small estate affidavit as a safety net
New Jersey's small estate affidavit — up to $50,000 for a surviving spouse or civil-union partner, $20,000 for other heirs — is a genuine shortcut for modest, unfunded assets. It is not a backstop for a house or a sizeable account left outside the trust by mistake; those amounts sit well above the threshold and require full probate regardless of the unused trust document.
A local probate attorney can review your estate — many offer a free consultation.