Vehicle Economics

Negative Equity Rollover: What Riding Along Actually Costs

Rolling a trade-in shortfall into a new loan does not erase it, it finances it at the new rate for the new term. A live calculator for what that actually adds.

Rolling a gap forward doesn't erase it, it finances it

When a trade-in is worth less than what's owed on it, a dealer can roll that shortfall into the new loan so nothing is due at signing. The gap doesn't disappear, it becomes part of the new principal, financed at the new loan's rate for the new loan's full term. It's a completely legal, common way to move forward without cash up front, but it means the new loan is bigger, the payment is higher, and part of every future payment is going toward a car that's already gone.

Try it: what a specific rollover actually adds

The payment increase understates the real cost

A rollover raises the monthly payment, but the bigger number is usually the extra interest accrued over the full term, since the rolled-in amount is financed at the same rate as everything else for just as long. The widget above splits the two apart deliberately, the payment bump is what you'll notice month to month, the interest total is what it actually costs by the time the loan is paid off.

How much rollover is too much, and how fast can you get out

Maximum Negative Equity for Target Paymentsolves the reverse question: how large a gap you can absorb and still hit a payment you can live with. If you're already carrying negative equity rather than deciding whether to roll it forward, Negative Equity Recovery Plannercompares waiting, paying extra, or a lump sum against each other as ways out, andDown Payment Needed to Eliminate Negative Equitychecks whether a specific amount of cash at signing removes the gap entirely instead of financing it.

What to check before rolling a gap forward

Your exact trade loan payoff from your current lender, not an estimate, since this figure directly sets the rollover amount.
Whether the new loan's term is long enough that this same problem (owing more than the car is worth) could repeat before you're through it.
Your Auto Loan LTV on the new loan once the rollover is included, a high starting LTV extends how long you're exposed to being underwater again.