Cash rebate vs low rate financing

The seller offers either a rebate on the price or a loan at a low rate. We compare both over the same length, with no other fees, to see which costs less in total.

Cash rebate vs low rate financing

%
Your bank’s rate, for example.
%
years

Result

812.86The low rate costs less, by

With rebate: monthly payment
538.07
With rebate: total paid
32,284.14
With rebate: interest
4,784.14
With low rate: monthly payment
524.52
With low rate: total paid
31,471.29
With low rate: interest
1,471.29

Cash rebate vs low rate financing

Inputs

Price before rebate
30000
Rebate amount
2500
Rate if I take the rebate
6.5
Low rate offered
1.9
Loan length
5

How it is calculated

Rebate option: borrow price − rebate at the normal rate.

Result

The low rate costs less, by

812.86
With rebate: monthly payment
538.07
With rebate: total paid
32,284.14
With rebate: interest
4,784.14

How it is calculated

  1. Rebate option: borrow price − rebate at the normal rate.
  2. Low-rate option: borrow the full price at the low rate.
  3. Same length and fixed monthly payments in both cases; we compare the total paid.

Example

Car at 30,000, a 2,500 rebate with a loan at 6.5%, or 1.9% with no rebate, over 5 years: 538.07 vs 524.52 a month; the low rate costs 812.86 less in total.

Good to know

  • Same fees assumed in both options.
  • If you pay cash, the rebate is usually the better option.

Frequently asked questions

What is this tool used for?

The seller offers either a rebate on the price or a loan at a low rate. We compare both over the same length, with no other fees, to see which costs less in total.

How is the result calculated?

Rebate option: borrow price − rebate at the normal rate.

What should I check before using the result?

Same fees assumed in both options.

Updated October 10, 2026

Indicative result. For an important decision, check with a professional.