Wealth Elf’s Best Rental Car Tips

Saving money on a rental car matters for more than just your budget—it helps you avoid common hidden costs that can quickly add up. Rental companies often tack on surprise fees for things like insurance, GPS systems, additional drivers, and fuel, turning what seemed like a good deal into a much more expensive experience.

Being cost-conscious will help you avoid from overpaying. Check out our latest tips for the car rental industry to avoid unnecessary costs.

Book Early, but Keep Checking Prices. Reserve early to lock in an attractive rate then re-check rates closer to your trip—prices often drop. You can use a service like Autoslash to track price drops and rebook at a lower rate.

Avoid Renting at Airports. Airport rentals often include extra fees and taxes. Compare with off-airport locations and use rideshare/public transit to get there.

Explore the Rise of Subscription-Based Rentals. Traditional daily or weekly rentals are giving way to flexible subscription models. These services allow customers to switch vehicles as needed, offering a more adaptable alternative to car ownership.

Companies like Hertz, Enterprise, and Sixt+ are expanding these offerings to cater to urban dwellers and business travelers seeking convenience without long-term commitments.

Decline insurance if you're covered through your personal car insurance or credit card benefits. Use discounts and memberships you’re already subscribed to. For instance look for codes or discounts from: AAA, Costco, AARP, USAA, credit card perks or employer or alumni programs.

Opt for an economy or compact car when booking your rental—these vehicles are typically the most budget-friendly option available. Also you’ll save a bit more on gas. Check out the Wealth Elf’s guide on how to save on gas here.

Not only do they come with lower daily rates, but they’re also more fuel-efficient, helping you save even more at the pump, especially on longer trips. While they may be smaller in size, most offer more than enough space for solo travelers or couples with light luggage. As a bonus, if the rental lot is running low on smaller vehicles when you arrive, there’s a good chance the company will offer you a free upgrade to a mid-size or even full-size model at no extra cost

Watch Out for Fuel Charges. This is one of the most common ways rental car companies increase your total bill. While the prepaid fuel option may sound convenient, it’s often not worth the extra cost unless you're absolutely sure you'll return the car with an empty tank, which rarely happens. Instead, choose the "return full" option.

This means you're only paying for the gas you actually use, often at a lower price than what the rental company would charge. To make the process even smoother, plan ahead by locating a nearby gas station close to the rental return location. Filling up just before you drop off the car ensures you avoid unnecessary fees and meet the full-tank requirement without stress.

Check for Mileage Limits. Most rentals are unlimited mileage, but double-check—especially for one-way or regional.

Some companies may impose daily mileage limits or charge extra fees for exceeding a certain distance, which can significantly increase your overall cost if you're planning a longer trip. To avoid surprises, review the terms carefully and confirm whether there are any restrictions based on where you're traveling or how far you intend to drive. A quick double-check can save you from unexpected charges and help you choose the rental plan that best fits your travel needs.

Let us know which of these tips was most helpful at @Wealth_Elf