Delaware Property Tax Calculator - Estimate annual DE tax from assessed value, county, school district, and state school levies

The Delaware property tax calculator estimates the annual property tax on a Delaware home or other real estate by adding the three levies Delaware actually applies: your county rate, your school district rate, and the statewide school property tax of 0.1128% of assessed value.

• • Budget before buying: Homebuyers model the annual tax on a purchase price so they know the true carrying cost before closing.
• • Check a county bill: Owners compare the estimate against the official statement to catch valuation or rate errors before the appeal window closes.
• • Plan a senior credit: Older owners see exactly how the up-to-$400 senior school credit reduces the statewide levy.
• • Compare counties: Shoppers weigh New Castle, Kent, and Sussex totals at the same value to understand location cost.

You enter your assessed value, your county rate, your school district rate, the statewide school rate, and any senior credit. The tool returns each levy, the total annual tax, and the effective rate so you can read the result the way the county presents it.

Delaware is unusual because there is no single local 'property tax rate' that captures the bill. The state, the county, and the school district each take a slice of the same assessed value, so the calculator keeps the three pieces separate instead of blending them into one number.

Once you know the annual tax, pair the result with the Delaware paycheck calculator to confirm that after-tax income covers both the tax bill and living costs.

The calculator multiplies your assessed value by each rate, subtracts the senior credit from the statewide school levy, then adds the three pieces for the total.

• Assessed Value: Delaware assesses real property at 100% of fair market value, so enter the full market value or the assessor's assessed figure.
• County Rate: The percent your county levies on assessed value; set by county council and varying by tax area.
• School District Rate: The additional percent your local school district levies on real property, stacked on the state school tax.
• Statewide School Rate: Fixed at 0.1128% of assessed value for all Delaware real property under Del. Code tit. 9, ch. 32.
• Senior Credit: Up to $400 subtracted from the state school levy for eligible owners 65 and older (Del. Code tit. 30, §5715).

The 0.1128% state school rate is the one constant across every Delaware property; the county and district rates are what make one address cheaper than another at the same value.

Because assessed value is the full market value, the effective rate you see is simply the sum of your three rates, not a discounted share of a capped base.

According to Delaware Code, Title 9, Chapter 32, Chapter 32, the statewide school property tax is 0.1128% of assessed value and is levied on all real property in the state.

According to New Castle County, Delaware - Taxes, real property is assessed at 100% of fair market value and county tax rates apply to that assessed value.

If the home produces income, run the same Delaware levies through the rental property tax calculator to see how the tax flows into cash flow.

The state school levy, the county levy, the school district levy, and 100% assessment explain most of what appears on a Delaware tax statement.

Reading a statement becomes easy once these four ideas click: the county shows its rate, the district shows its rate, and the state shows the 0.1128% school rate, all on the same assessed value.

The senior school credit is the one owner-controlled lever on the state levy, so confirming eligibility before filing is worth the effort.

Compare Delaware's 100% assessment against California's capped Prop 13 base using the California property tax calculator to see how the two states differ.

Gather your assessor's notice and tax bill, then enter each value exactly as printed to estimate your annual bill.

1. 1 Find your assessed value: Read the assessed value from your county assessor's valuation notice. In Delaware this equals 100% of market value.
2. 2 Enter your county rate: Copy your county's property tax rate from the tax statement, written as a percent of assessed value.
3. 3 Enter your school district rate: Add the local school district rate shown on the bill, which stacks on top of the state school tax.
4. 4 Confirm the state school rate: Leave the 0.1128% statewide school rate in place unless you have a specific local adjustment to model.
5. 5 Add any senior credit: Enter up to $400 if you are 65 or older and meet the ownership, occupation, and income rules; otherwise enter 0.
6. 6 Read the result: The tool shows each levy, the total annual tax, and the effective rate as a share of assessed value.

A Kent County owner with a $300,000 assessed value, 0.35% county rate, 0.85% district rate, the 0.1128% state rate, and no credit sees a county tax of $1,050, district tax of $2,550, state school tax of $338.40, and a total near $3,938.40.

See how a state with no statewide property tax differs from Delaware's model with the Alaska property tax calculator before you relocate.

Estimating your bill early helps you budget, spot valuation errors, and see how the senior credit and rate choices change your cost.

• • Catch assessment errors: Compare your estimate against the county bill to surface mistakes in value or rate before the appeal window closes.
• • Model the senior credit: See exactly how the up-to-$400 senior school credit lowers the statewide levy for eligible older owners.
• • Compare counties: Weigh New Castle, Kent, and Sussex totals at the same value to understand how location changes the annual cost.
• • See the true effective rate: Report the effective rate against 100% assessed value so you can compare Delaware against other states on equal footing.
• • Plan a purchase: Buyers confirm the real tax before closing so the monthly payment reflects the full carrying cost.

An estimate is also a negotiating tool: a buyer who knows the real tax can weigh a low list price against a high district rate that raises monthly cost.

Owners benefit too, because the calculator quantifies the credit and rate levers rather than leaving them buried in the statement.

Like Delaware, Connecticut layers a statewide property tax under local school district rates, but its mill rates run far higher, so use the Connecticut property tax calculator to see how a similar structure produces a very different bill when weighing a move.

Your bill moves with the assessed value, the county rate, the school district rate, and any credit you claim.

• • The estimate excludes separate fees such as sewer, water, and special district charges that may appear on the same bill.
• • It does not replace the official county bill, which reflects final budgets, voted bond rates, and any late adjustments.

Two homes at the same value can owe very different tax if they sit in different districts or counties.

Credits are the lever owners control directly, so confirming eligibility is worth the effort before filing.

According to Tax Foundation - Property Taxes by State, Delaware levies property tax at the county and school district level with a statewide school component.

Contrast Delaware's county and district rates with Alabama's approach through the Alabama property tax calculator to understand regional differences.