I once accompanied an investor to review rental properties in Columbia. At first glance, the purchase prices seemed reasonable, but after crunching the numbers, the advantages and burdens became clear. In such cases, it's safer to compare both sides rather than making a decision based on just one figure.

Starting with the advantages, the average rent in Columbia, as of July 2026, ranges from $1,502 to $1,549 per month, which is 21 percent lower than the national average (RentCafe). A one-bedroom unit averages around $1,024, while a two-bedroom unit is about $1,209, reflecting a 3 percent increase over the past year. When evaluating the rent level against the purchase price using the 1 percent rule, properties that meet this criterion often catch the eye.

On the other hand, a potential burden is the property tax structure. In South Carolina, the property tax assessment ratio is 4 percent for owner-occupied homes and 6 percent for rental or investment properties (mgcrealestate.com). For a $300,000 home, the taxable value would be $12,000 if owner-occupied, but it jumps to $18,000 for investment purposes. The effective tax rate in Richland County, where Columbia is located, is between 0.70 percent and 0.72 percent, which is higher than the state median of 0.66 percent (Ownwell). This figure typically applies to owner-occupied homes, so if purchased as an investment, the actual burden can be even greater, which is easy to overlook.

Loan conditions also need to be considered. For investment properties, the down payment ranges from 15 percent to 25 percent, which is higher than for primary residences, and a credit score of at least 620 is required for a loan, with a score of 740 or higher needed for favorable rates (fanniemae.com). Interest rates are also 0.5 to 0.75 percentage points higher than for owner-occupied homes. Expected rental income is only recognized up to 75 percent, and a lease agreement or appraisal rent schedule is required.

Regarding tenant protections, South Carolina has no rent control, and state law prevents municipalities from enacting rent control measures (hemlane.com). Several bills to introduce rent control have been discussed but have not yet passed. For month-to-month leases, rent increases can be made with notice, but retaliatory or discriminatory increases are prohibited, and standards for habitability are legally defined.

Management fees range from 8 percent to 12 percent of the monthly rent, and landlord insurance is typically priced higher than standard homeowners insurance. A good rule of thumb is to set aside about 1 percent of the annual property value for maintenance costs. While the lower rent prices may lead to lower purchase prices, the cap rate itself may not be bad, but the 6 percent assessment ratio must be factored in to accurately gauge net income.

For example, when we looked at a property with a purchase price of $200,000 and a rent of $1,209 for a two-bedroom unit, the annualized rent was about 7.25 percent of the purchase price, comfortably exceeding the 1 percent rule. However, recalculating property taxes using the 6 percent assessment ratio revealed a greater actual burden than the tax amount initially provided for owner-occupied status. It was only by placing the favorable rental yield and the unfavorable tax burden side by side that the true picture of the property emerged. Emphasizing only one side can lead to missing the other half of the equation, which was a point reaffirmed during that visit. Ultimately, the investor decided to inquire with the county tax assessor's office about the estimated tax amount for non-resident owners before making a purchase.

If there are plans to switch to another property later, I also mentioned that a 1031 exchange could defer capital gains taxes (irs.gov). To see the true yield in Columbia, both the low rent and high investment assessment ratio must be considered together. Rather than jumping in based solely on favorable rental rates or giving up based only on tax rates, creating a side-by-side comparison table can aid in decision-making. This is not investment or legal advice, and consulting with a professional before any actual contracts is recommended.