The insurance payout also impacts your taxable gain.

., the calculation of tax you'll owe is very straight forward. 

A Title Company can distribute the proceeds based on the agreement, and consulting a CPA will help calculate tax liabilities and explore strategies like a 1031 exchange to minimize taxes.

So your capital gain when you sell this property will be calculate against your tax basis and not against your mortgage as many investors expect.

Property owners get an annual update on their SEV & Taxable Values with their city property tax bill, typically sent in December.So now, the city assessor tracks the SEV, but homeowners are taxed based upon the capped Taxable Value.

I know BiggerPockets already has a number of great calculators, but is there anything niche that people are interested in?

How do we calculate occupancy and what is to be "Normal". 

This is from the BP rental calculator and is exactly what I'm wanting to see, just with extra payments each month. 

What you have calculated is not cash on cash return.   

There are mortgage recast calculators online or you can reach out to your lender.P+I payment will go from 2155 to ~1800 given the numbers you provided.