1. Connecticut

• Estate tax: Yes
• Estate tax rates: 11.6% or 12%
• Estate tax exemption level: $12.92 million

Connecticut’s estate tax threshold is $12.92 million for 2023, which is the same amount as the federal threshold. The tax due is limited to $15 million.

The Constitution State is the only US state that levies a gift tax on assets and other valuables you give away while you’re alive. In other words, if you made taxable gifts, you need to file a Connecticut estate and gift tax return to detail such gifts.

However, the law applies only when the total value of gifts made since 2005 surpasses $12.92 million.