Before you start
US consumer auto loans and trade-ins. The tool uses quoted dollar amounts and fixed monthly financing; it does not estimate vehicle value, taxes, future resale prices or lender approval.
1. Measure the shortfall using matching, current figures
The CFPB recommends obtaining the payoff amount and trade-in value. Ask the servicer for a quote valid for the expected payoff date. A statement balance may exclude later interest or charges. Use a written offer for the actual vehicle and condition; an online estimate is a starting point, not guaranteed proceeds.
If payoff is greater than the offer, the difference is negative equity. If the offer is greater, the difference is positive equity before other transaction costs. Keep the quote dates and conditions together. An expired payoff or changed vehicle appraisal can change the shortfall even when the advertised new-car payment has not changed.
2. Follow the shortfall through the new contract
Ask for separate lines for vehicle price, taxes, fees and selected add-ons, cash down, trade-in allowance and old-loan payoff. Opening financed balance = price + quoted taxes + financed fees − cash down − trade-in value + old-loan payoff. Count each item once; if a displayed price already includes tax or an add-on, do not add it again.
A dealer may pay the old lender using money financed in your new agreement. The CFPB explains that rolling old debt into a new loan increases the amount borrowed. If you are told the shortfall is covered, ask which written credit or price reduction covers it and reconcile the final amount financed. A verbal promise alone does not show who ultimately pays.
3. Compare the whole deal over the same period
For two quotes on the same replacement vehicle, hold the cash contribution and evaluation period explicit. The CFPB advises looking beyond the monthly payment. Check the contract interest rate, disclosed APR, term and fees. The monthly model uses the contract rate; do not substitute APR, which can include charges.
Review payments made during the same period and the remaining balance at its end. Show any different upfront cash separately. A higher trade-in allowance can be offset by a higher replacement price. If one option is keeping the current car, record that it involves a different asset and different repair, insurance and transport costs; financing totals alone cannot rank those choices.
4. Confirm that the old loan actually closes
Before signing, identify who pays the old servicer, the amount, the expected posting date and how you can confirm receipt. Ask what happens if the payoff expires or a scheduled payment posts in the meantime. Keep the purchase agreement and old-loan quote. Do not treat transfer of the vehicle itself as proof that the old account is paid.
After the transaction, obtain confirmation directly from the old servicer and investigate any remaining balance. Record an expected add-on refund separately until its amount, recipient and application are confirmed. If postponing a trade is an option, review affordability and vehicle condition without assuming future resale value or future refinancing approval.
Fictional example: the larger trade-in allowance costs more
For the same replacement vehicle, Quote A lists $16,000 price, $1,200 taxes, $300 financed fees and $1,000 cash down. The old car has a $14,000 payoff and an $11,000 trade allowance: $3,000 negative equity. The new balance is $16,000 + $1,200 + $300 − $1,000 − $11,000 + $14,000 = $19,500.
Quote B raises the allowance to $12,000 but raises the replacement price to $17,500; other entered amounts stay the same. The shortfall falls to $2,000, yet the new balance rises to $20,000. Compare both using the same rate, term and horizon to isolate this $500 difference. These invented quotes do not establish vehicle value or actual tax treatment.
| Quoted line (USD) | Quote A | Quote B |
|---|---|---|
| Replacement vehicle price | $16,000 | $17,500 |
| Old-loan payoff | $14,000 | $14,000 |
| Trade-in allowance | $11,000 | $12,000 |
| Quoted taxes plus financed fees | $1,500 | $1,500 |
| Cash down | $1,000 | $1,000 |
| Opening financed balance | $19,500 | $20,000 |
Before you finish
- Match the payoff validity date to the planned transaction.
- Use the actual written trade-in offer and its conditions.
- Trace every price, tax, fee, cash and old-debt line once.
- Compare the same period and show remaining debt and upfront cash.
- Verify old-loan closure with the old servicer.
My negative-equity quote notes
Use labels such as Quote A and Old loan. Keep VINs, account numbers and identifying paperwork outside this tool.
Entries are optional and stay in this page's memory. This worksheet does not send or save them. Use generic account labels and document labels. Do not enter account numbers, Social Security numbers, PINs, access codes, passwords, names or addresses, and do not upload documents. Downloading or printing creates a copy you control.
Reconcile the final written figures and resolve any unexplained amount before deciding; later verify the old loan’s closing record.
Compare two fixed vehicle loan scenarios
Use scenario 1 for the current arrangement and scenario 2 for a documented alternative. For an existing loan or refinance, enter the balance or dated payoff as the base amount and enter 0 for purchase components that do not apply. For a trade, enter both the trade value and its payoff; the engine includes their difference once.
Payments are estimates from an annual nominal rate divided by 12, with monthly interest rounded to cents and a fixed installment that clears the stated term. They may differ from a lender’s payment or dated payoff. No skipped payments, variable rates, balloon, deferral or added future fees are modeled. Both scenarios start now and use the same comparison horizon. Upfront fees are separate from financed fees. Vehicle resale value, transport, insurance, maintenance and other operating costs are omitted.
Enter actual dates as YYYY-MM-DD. If a date is unknown, leave it blank; do not invent one. Dates are calendar dates, with no time zone or time-of-day comparison. This record does not calculate a legal deadline or schedule reminders.
Amounts are US dollars: use a point and at most two decimal places, without commas or currency symbols. Enter an explicit 0 only when documented as zero. Annual rates are nominal contract rates, not APR. Rates: 0–100%; terms and horizon: 1–360 whole months; each amount: up to $1 billion. Opening cash alone may be negative.
Questions you may have
The dealer says it will pay off my car. Is the negative equity forgiven?
Not necessarily. The payment to the old lender can be financed in the new loan. Ask for the complete written breakdown and identify any genuine credit or price reduction; reconcile it with the amount financed.
Does paying the shortfall in cash always make the deal better?
It reduces new borrowing if the other terms stay the same, but uses cash you may need for essential bills. Compare the same transaction with that cash outflow visible. It does not change the vehicle’s price or guarantee loan approval.