I can provide you an estimate of tax liability in each of the States.
Can you provide information regarding your property on the house?
I mean property taxes paid by you on your house..
You calculations for DC, VA and MD are almost close to what I have in State taxes.
Property tax will be able to offset the excess tax liability. Also, I think the Cost of living also will be higher in DC as compared to other state.
Approximate Property tax rates-
DC - The tax rate for residential properties will be upto appx. $0.88 for each $100 of assessed value.
MD - The tax rate for residential properties will be maximum upto appx. $1.082 for each $100 of assessed value.
VA - The tax rate for residential properties will be upto appx. $1.04 for each $100 of assessed value.
Let me know if you have any question. Bonus and Feedback will be highly appreciated!!!
Please note: This advice is provided with the understanding that all the relevant facts have been provided by you. Any change in facts might affect the advice given and hence may not be relied on in such cases.
Also residence in one State compared to the other State might affect your federal taxes a little as you get the State taxes paid as an itemized deduction. So if you stay in DC, you will have a lower federal tax liability as compared to if you stay in MD.
I.e you will owe $215000 in Federal tax if you stay in DC vs. $225500 if you stay in MD.