Delaware Rental Yield and Cash-on-Cash Return: How to Analyze an Investment Property

The appeal of Delaware investment property usually begins with the property tax comparison. When someone shows you that a $300,000 rental property in Sussex County carries roughly $1,050 in annual property taxes — versus $14,000 or more for an equivalent value property in Monroe County, Pennsylvania — the math looks compelling at first glance. But gross yield and cash-on-cash return tell a more complete story than property taxes alone, and Delaware has enough state-specific cost variables that a standard national underwriting template will produce numbers that don't survive contact with the closing disclosure.

Here is a practical framework for analyzing Delaware rental yields, accounting for the costs that are unique to this state.

The Delaware-Specific Cost Variables You Must Model First

Before you start projecting income, you need accurate inputs for Delaware's state-specific line items. Every one of these will appear in your actual economics whether or not they appear in your spreadsheet:

Transfer tax (2.0% of purchase price for investors): Delaware's 4% realty transfer tax is split 50/50 by custom, giving investors a 2% acquisition cost. The First-Time Homebuyer exemption that reduces this burden does not apply to investment properties. On a $300,000 purchase, that's $6,000 in transfer tax paid at closing, which is cash out of pocket that doesn't appear on a simple cap rate calculation.

Attorney closing fees ($800-$1,500): Delaware is an attorney state. A licensed Delaware attorney must actively conduct the closing and supervise fund disbursement. This is mandatory, not optional.

Post-reassessment property taxes: Delaware completed a statewide property tax reassessment in 2024-2026 for the first time in 40+ years. Assessed values are now indexed to July 1, 2023 market values. Tax rates were reduced proportionally to maintain approximate revenue neutrality, but individual properties shifted substantially. Do not use old tax bills for underwriting — pull the FY 2026 tax rate for the specific county and school district.

As context, effective rates as of FY 2026:

• Sussex County: approximately $0.21 per $100 of assessed value in Cape Henlopen school district, slightly higher in Milford and Seaford districts
• Kent County: approximately $0.40 to $0.59 per $100 depending on school district
• New Castle County: residential rates vary by municipality but the unincorporated county residential rate is $0.1575 per $100

DNREC Class H septic inspection: Properties without municipal sewer connection require a mandatory septic inspection at every transfer. The inspection itself costs around $500; a failed system can mean $15,000 to $30,000 in replacement costs. Budget for this as a deal-dependent variable, not a fixed cost.

Lead paint compliance (Wilmington pre-1978 properties): Properties built before 1978 in Wilmington will require lead inspection and likely some remediation before March 2028. Factor this into the first-year capital budget if you're buying vintage Wilmington inventory.

Calculating Gross Yield

Gross yield is annual gross rental income divided by purchase price. It tells you the income-to-price relationship before any expenses.

For Delaware markets as of 2026:

Wilmington: Distressed row homes in the right neighborhoods can achieve gross yields of 10-14% if purchased at distressed prices. The income is real but so are the compliance costs. A $150,000 row home generating $18,000/year in gross rent is a 12% gross yield — but factor in lead remediation, annual licensing, and the inevitable deferred maintenance in aging urban housing stock, and net yield compresses significantly.

Dover/Kent County: Mid-market workforce housing typically achieves gross yields of 8-10%. Military and government tenants are reliable, turnover is lower than student or urban markets, and property maintenance costs on newer suburban inventory are more predictable.

Sussex County (STR): Coastal short-term rental properties can generate high gross revenue in peak season but require pro forma modeling that accounts for the full lodging tax burden (7.5% to 11.5% combined depending on municipality), seasonal vacancy, management fees (typically 20-30% of gross revenue for full-service coastal STR management), insurance, and maintenance.

Newark (student housing): Per-room pricing strategies can generate gross yields of 9-13% on properties acquired at Newark's mid-range prices, but the Newark zoning code's three-unrelated-persons limit in most districts caps income — verify the legal occupancy limit for each specific parcel before running income projections.

Cash-on-Cash Return: What Actually Matters

Cash-on-cash return measures how much annual pre-tax cash flow you generate as a percentage of the total cash invested. Cash invested includes your down payment, transfer tax, closing costs, and any upfront renovation budget.

A simplified example for a $300,000 Wilmington duplex financed at 80% LTV with a DSCR loan at 7%:

Cash invested at closing:

• Down payment (20%): $60,000
• Transfer tax (2%): $6,000
• Closing costs (attorney, title, recording): $2,500
• Initial lead inspection / minor remediation: $4,000
• Total cash in: $72,500

Annual income and expenses:

• Gross annual rent (two units, $1,400/month each): $33,600

• Vacancy allowance (8%): -$2,688

• Property management (if using PM, ~10%): -$3,360

• Property tax (estimated FY 2026): -$2,000

• Insurance: -$1,800

• Maintenance reserve (8% of rent): -$2,688

• Net Operating Income: ~$21,064

• Annual DSCR debt service ($240,000 loan at 7%, 30yr): -$19,175

• Annual pre-tax cash flow: ~$1,889

Cash-on-cash return: $1,889 / $72,500 = ~2.6%

At first glance, 2.6% cash-on-cash is modest. But this example uses full-service property management, a conservative vacancy rate, and a high interest rate environment. Self-managing investors, or those who acquire at better prices or with larger down payments, improve this substantially. The Wilmington market also offers appreciation and depreciation benefits that don't appear in cash-on-cash but are real components of total return.

Insurance Considerations for Delaware Rental Properties

Standard landlord policy: Every Delaware rental property needs a landlord-specific policy (also called a dwelling fire policy), not a homeowner's policy. Homeowner's policies exclude rental activities.

Flood insurance (Sussex County): Coastal Sussex properties and riverfront properties in Kent and New Castle counties in FEMA flood zones require separate flood insurance policies through the NFIP or a private carrier. Flood premiums in V-zones (coastal velocity) can run several thousand dollars annually and materially impact NOI. Pull the FEMA flood map before underwriting.

Umbrella liability: Investors with multiple units should consider an umbrella liability policy covering personal liability exposure across the portfolio. This is particularly relevant in Wilmington, where slip-and-fall and habitability claims occur more frequently in older urban housing stock.

Working with Delaware-Knowledgeable Agents and Professionals

Delaware is a small market with specific quirks. An investor-focused agent who has closed dozens of transactions in Wilmington row homes, Newark student rentals, or Sussex STR properties carries contextual knowledge that a generalist agent cannot match. Ask prospective agents how many investment transactions they've closed in the specific submarket you're targeting, whether they can refer you to DSCR lenders who've closed Delaware deals, and whether they understand the Class H septic inspection process.

Similarly, your closing attorney selection matters. Delaware's attorney-state requirement means the attorney actively conducts your closing — this is not just document review. Choosing an attorney with a track record in investment property closings rather than a general practitioner who occasionally handles real estate makes a meaningful difference in how smoothly the transaction runs.

For a full analysis of Delaware's acquisition costs, FY 2026 property tax rates by county and school district, financing options including DSCR and hard money, landlord-tenant compliance requirements, and market-specific due diligence, the Delaware Investment Property Guide covers all of it in one place.

See more Delaware guides →