When you sell an appreciated asset, you usually owe tax twice: once to the IRS and once to Delaware. Delaware does not give long-term gains a discount — it taxes them as ordinary income — so your combined bill can be meaningful. This tool estimates both layers.
How it works
The federal portion depends on the holding period; the Delaware portion does not:
federal (long-term) = 0% / 15% / 20% bracket × gain
federal (short-term) = your ordinary federal rate × gain
delaware = Delaware marginal rate × gain (max 6.6%)
total tax = federal + delaware
effective rate = total tax / gain
Delaware’s top marginal rate of 6.6 percent applies to taxable income over 60,000 dollars, and a capital gain is simply stacked on top of your other income to find that rate.
Example and tips
A 40,000 dollar long-term gain for a single filer with 90,000 dollars of income faces a 15 percent federal rate (6,000 dollars) plus Delaware’s 6.6 percent (2,640 dollars), for about 8,640 dollars total — a 21.6 percent effective rate. Because Delaware offers no break for long holding, the only lever that lowers your state tax is reducing the size of the taxable gain itself through losses or timing.