> And even if you know the formula and calculations we don't know all your specific info and dates you made any payments and when the IRS got the payments
Now that's just mathematically false. Firstly when the IRS send out a 2210 there are dates and interest numbers.
Secondly the formula can be applied from date to date, it's fairly simple mathematics, and anyway
readily done in spreadsheets, but one needs to be certain of which of several formulas are applying.
If people would supply me with dates of 2210 notices, the dollar values of the underpayment, and the
date taxes were due (which I probably can guess), I'm certain I can reverse engineer the formula.
Very likely it's the P(1+r/365)^n. formula, but I'd need data to be sure. I'd be happy to post the
spreadsheet entry that computes the value to the penny if I can reverse engineer it.
I don't need personal information just the data from the 2210 .
