There have been inquiries about the online yield calculator for New Haven properties showing strange numbers. Upon checking, it turned out that the property tax item had an arbitrary value of about 1% of the sale price entered. In Connecticut, where New Haven has a millage structure, such rough estimates can make the cap rate appear much higher than it actually is.

With the same budget, the calculation results can vary significantly depending on which area of New Haven is chosen. The average rent across New Haven is $2,150, and the median sale price is $387,000. Using these two figures to calculate the total yield gives a 6.7% return, derived from an annual rent income of $25,800 divided by the purchase price. In contrast, areas near the university, where rental demand is steady, have studio rents averaging $2,060 and one-bedroom rents reaching up to $2,600, which can result in a higher total yield even with the same purchase price.

Now, let's apply New Haven's millage. As of 2026, New Haven's millage is 43.88 mills, and residential properties in Connecticut are assessed at 70% of market value. Based on the median sale price of $387,000, the assessed value is approximately $270,900, and multiplying this by 43.88 mills results in an annual property tax of $11,885. Compared to the 1% of the sale price that the initial investor entered, which is $3,870, this shows a difference of more than three times. This indicates that the cap rate can vary significantly depending on what numbers are entered into the calculator.

When calculating the NOI with accurate property tax, you need to subtract operating expenses, including property tax of $11,885, insurance, maintenance costs, and vacancy losses, from the annual rent income of $25,800. If we simply apply the 50% rule, the operating expenses are estimated to be around $12,900, which is half of the rent income. However, since property tax is particularly high in New Haven, operating expenses often turn out to be higher than this. If we conservatively estimate operating expenses at 55-60% of rent income, the NOI would be between $10,000 and $11,600, resulting in a cap rate of about 2.6-3.0%.

According to Zumper, rent prices in New Haven have increased by 1.72% over the past year. This can be seen as a sign that steady rental demand near the university is relatively stabilizing the rental market in this area. However, it is important to note that even within New Haven, the nature of rental demand differs between the university area and the outskirts.

If we assume a 20% down payment, the actual cash input for a property priced at $387,000 would be around $77,400 plus closing costs. If the pre-tax cash flow, accounting for loan interest and the previously calculated property tax of $11,885, is $2,500 annually, the cash-on-cash return would be around 3.2%. Depending on investment goals, the choice may vary between selecting the university area with slightly lower cap rates but less vacancy risk or opting for the outskirts with lower sale prices but higher vacancy burdens.

Areas like Westville and East Rock are often mentioned as school districts of interest for Korean families. Since school district boundaries frequently change, it is advisable to check the assigned school for the specific address before purchasing. If moving from another state, be sure to accurately input New Haven's millage of 43.88 multiplied by the assessed value of 70% rather than the sale price into the calculator.

From a long-term investment perspective, it is essential to consider not only the cap rate and cash-on-cash return but also the total return. Including asset appreciation due to loan principal repayment, capital gains, and depreciation tax benefits can lead to better investment outcomes even in markets like New Haven, where property tax is a significant factor. However, since capital gains are not guaranteed, it is safer not to expect them definitively.

Some investors also compare millage rates with neighboring towns within Connecticut. Choosing a nearby town with a lower millage than New Haven can reduce property tax burdens, but this may also affect rental demand and sale price trends, so it is safer not to base location decisions solely on tax rates.

This article does not constitute investment or legal advice, and it is recommended to consult with a real estate professional before making any actual contracts.