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Rental Car Discount Codes & Corporate Rates

Rental car discount codes can save real money—but only if you use the right code type, put it in the right field, and confirm it actually lowers the total price (not just the base rate). Below are all of our rental discount guides in one place so you can pick the right rental car company and book with confidence.

If you only do one thing: price your rental with no codes first, then test one code at a time.

The 60-second method to find the best rate

Start with a clean baseline, then compare totals:

  1. Search your rental with no codes (baseline).
  2. Apply one discount code and compare the total.
  3. If the company allows it, test adding a coupon code on top of the discount code.
  4. If two totals are similar, choose the option you can prove eligibility for and that keeps the best cancellation flexibility.

Know what you’re applying (so you don’t get repriced)

Corporate rates (best savings, highest eligibility risk)

Corporate codes can be excellent, but they can also backfire if you can’t substantiate eligibility at pickup. If you’re unsure you qualify, use a public offer or a membership discount you can verify rather than chasing the biggest corporate rate.

Public promos and membership discounts (usually the safest)

Public offers and membership-based discounts tend to be more reliable at the counter. They may not always be the biggest discount, but they’re usually the lowest-friction way to save.

Common mistakes that erase the discount

The most common reasons discounts “don’t work” (or get removed later):

  • The right code was entered in the wrong field (common with two-code systems).
  • The discount lowered the daily rate but increased fees elsewhere—so the total went up.
  • The booking was prepaid without realizing the cancellation terms changed.
  • A corporate-style rate was used without eligibility proof at pickup.

Want the full playbook for each brand?

If you want to optimize the entire rental (not just the code), start with our brand guides: