Money factor, residual, and the payment — taxed by Massachusetts’s actual method rather than the monthly one every generic lease calculator assumes.
Sales tax applies to each monthly payment as you make it, which is the common rule and a materially smaller bill than taxing the car outright. A few states instead tax the lease’s full value at signing; the calculator applies whichever rule is actually Massachusetts’s.
The real out-the-door number — including whether your state credits your trade-in against the sales tax.
Which dealer offer actually costs less over the life of the loan, and the rate at which they tie.
Income, savings, and debts in — max home price and qualification signal out.
A dealer offers 0% financing or $3,000 cash back. On a $38,000 car over 60 months the two cost exactly the same at 3.70% — and above that, the 0% wins by thousands.
Co-signing a $683-a-month car loan cuts the house payment you can qualify for by $683 — dollar for dollar. And if it defaults, you owe the whole balance, not half.
One number, in writing, itemised — and the scripts that get it. Every line a dealer can add, which of them are negotiable, and what your own state's tax rules do to the total.
One number, itemised, with the taxable amount working your state's trade-in rule live rather than leaving it to you to remember: four states with a sales tax credit nothing against a trade-in, and Ohio credits it against a new vehicle only. Checks a documentation fee against the nine statutory caps this site has confirmed, and is explicit that the other 41 states are unresearched rather than uncapped. Prices the F&I office as the optional extra it is, and adds the trade-in payoff back into the amount financed — because negative equity does not disappear when you trade the car, it moves into the new loan and accrues interest.