Negative Equity Calculator

If you owe more than your car is worth, this calculator shows exactly how rolling that negative balance into your next loan changes your monthly payment, total interest, and overall cost.

Your Loan Situation

Enter a valid vehicle price.
The amount you owe beyond your trade-in value
Enter a valid negative equity amount.
Any additional cash you're putting down
Enter a rate between 0% and 100%.

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What Happens When You Roll Over Negative Equity?

When you trade in a vehicle worth less than you owe, the difference (negative equity) is added to your new loan. This means you're financing more than the new vehicle is worth from day one — a practice sometimes called "rolling over" or "stacking" debt.

The immediate consequences are: a higher monthly payment, more total interest paid over the loan term, and the risk of being immediately underwater on the new vehicle as well — creating a cycle of negative equity.

California BHPH and Negative Equity

BHPH dealers in California are legally permitted to roll negative equity into new contracts. At interest rates of 18–29%+, rolling even a small negative balance dramatically increases the total cost of the new loan. If possible, pay off the negative equity separately rather than rolling it in.

Alternatives to Rolling Over

  • Pay the negative balance in cash at closing
  • Continue paying down your current loan before trading in
  • Refinance your existing loan to a lower rate to pay it down faster
  • Keep your current vehicle until you have positive equity

Results are estimates for planning purposes only. Actual loan terms vary by lender and dealer. Consult with a financial advisor before making major borrowing decisions.