Connecticut Probate Fee Spousal Reduction: How the 50% Rule Works

Connecticut's probate fee is one of the most misunderstood costs in estate administration. What makes it particularly confusing for surviving spouses is this: the fee is assessed on the gross estate — including assets passing to the spouse — yet the law also provides a significant reduction specifically for spousal transfers. Many executors pay more than they legally owe because they do not know to claim it.

Here is exactly how the Connecticut spousal probate fee reduction works under C.G.S. § 45a-107.

How Connecticut Calculates the Probate Fee

First, the baseline. Connecticut's probate fee is not a flat filing fee — it is a statutory assessment calculated on the value of the gross estate. The fee applies regardless of whether assets pass through formal probate administration or transfer through non-probate mechanisms like joint accounts or trusts.

The fee is calculated on the greatest of three figures:

1. The probate inventory value
2. The Connecticut taxable estate (for estate tax purposes)
3. The gross estate for federal estate tax purposes

Connecticut includes non-probate assets in this calculation. A $500,000 joint bank account that passes directly to a surviving spouse outside of probate still counts toward the fee basis. This is one of Connecticut's most significant departures from other states.

The statutory fee schedule under C.G.S. § 45a-107 runs as follows:

The 50% Spousal Reduction: How It Works

Connecticut law mandates a 50% reduction in the fee basis for any portion of the estate that passes to a surviving spouse.

Here is how the reduction is applied in practice:

Step 1: Calculate the total gross estate (probate and non-probate assets combined, excluding out-of-state property).

Step 2: Identify what portion of the gross estate passes to the surviving spouse — through the will, intestate succession, joint accounts, TOD designations, or any other transfer mechanism.

Step 3: Reduce that portion by 50% before applying it to the fee schedule. The remaining 50% of spousal property is included in the fee basis at its full value; the other 50% is excluded.

Step 4: Add the non-spousal property at full value plus the reduced (50%) spousal property to arrive at the adjusted fee basis. Apply the fee schedule to that adjusted basis.

Example:

Suppose the gross estate is $1,200,000. Of that, $800,000 passes to the surviving spouse (through a mix of joint accounts and will bequests) and $400,000 passes to adult children.

Without the spousal reduction, the fee on $1,200,000 would be:

• $1,865 (fee on first $500,000) + 0.25% × ($1,200,000 - $500,000) = $1,865 + $1,750 = $3,615

With the spousal reduction, the adjusted fee basis is:

• Spousal share: $800,000 × 50% = $400,000
• Non-spousal share: $400,000 × 100% = $400,000
• Adjusted basis: $800,000

Fee on $800,000:

• $1,865 + 0.25% × ($800,000 - $500,000) = $1,865 + $750 = $2,615

The spousal reduction saves approximately $1,000 in this example — a meaningful amount, particularly when multiplied across larger estates.

The Out-of-State Property Exclusion (Often Combined with Spousal Reduction)

A separate — and equally important — reduction is available for real estate and tangible personal property located outside Connecticut. Out-of-state property is entirely excluded from the fee basis, not merely reduced.

Executors frequently fail to claim this exclusion because the fee calculation form (CT-706 NT) does not automatically prompt for it. If the deceased owned a Florida vacation home, a vacation cabin in Vermont, or any other out-of-state real property, its value must be explicitly deducted from the fee basis calculation.

When both the spousal reduction and the out-of-state exclusion apply, the savings can be substantial. A $2,000,000 estate where $600,000 consists of a Florida condominium and $1,000,000 passes to the surviving spouse has an adjusted fee basis significantly lower than the gross $2,000,000 figure.

How to Claim the Spousal Reduction

The spousal reduction is claimed when filing Form CT-706 NT with the Probate Court. The form requires the executor to identify:

• The total gross estate value
• The portion passing to the surviving spouse
• The applicable reduction

The court then calculates and invoices the fee based on the adjusted basis. Do not simply apply the fee schedule to the gross estate and submit payment without claiming the reduction — the court will not automatically apply it.

If the CT-706 NT is filed incorrectly and the spousal reduction is not claimed, the fee invoice will be higher than legally required. Correcting it requires amending the return and requesting a fee adjustment, which adds administrative friction.

The 6-Month Deadline Still Applies

The spousal reduction does not affect the filing timeline. Form CT-706 NT must be filed within six months of the date of death regardless of the estate's composition or how much the spousal reduction will lower the fee.

Missing the six-month deadline triggers 0.5% per month compounding interest on the eventual fee — including the reduced fee. Claiming the spousal reduction correctly is important, but claiming it on time is more important.

When the Estate Includes Both Spouses' Assets

For surviving spouses who may later deal with their own estate planning, note that Connecticut does not recognize portability of the estate tax exemption between spouses. If a deceased spouse had a $15 million exemption and it was not used through a credit shelter trust or similar planning, it does not transfer to the surviving spouse. Each person's estate is assessed independently at death.

This is different from the federal estate tax system, which allows a surviving spouse to "port" unused exemption. Connecticut's lack of portability makes credit shelter trust planning particularly valuable for married couples with estates approaching the exemption threshold.

The Connecticut Probate Process Guide includes the complete fee calculation process with specific guidance on applying both the spousal reduction and the out-of-state property exclusion — and a walk-through of the CT-706 NT form so executors can estimate their court invoice before it arrives. For many estates, correctly calculating these adjustments is worth hundreds to thousands of dollars in avoided overpayment.

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