Renting a car in the U.S. requires a valid driver's license, a credit card, and you must be at least 18 years old — though most major rental companies charge extra if you're under 25

The basic rental process is straightforward: you reserve a car online or by phone, show up with your license and credit card, sign a contract, and drive away. But the details matter. Rental companies hold a deposit on your credit card (typically $200 to $500, depending on the car class), check your driving record, and require you to carry insurance — either your own policy, a credit card's coverage, or theirs. The final cost depends on the car type, rental length, location, and what insurance and add-ons you choose.

Where you rent affects both price and hassle. Airport locations charge facility fees (often 10 to 15 percent of the rental cost), so renting from an off-airport branch in the same city costs less. One-way rentals — picking up in one city and dropping off in another — carry a drop-off fee that varies by distance and company. Booking directly with the rental company or through an aggregator like Kayak, Autoslash, or Priceline shows different rates; aggregators sometimes lock in lower prices but make changes harder.

Key Takeaways

  • You need a valid driver's license, credit card, and proof of insurance (yours, your credit card's, or the rental company's) to complete a rental.
  • Rental companies place a hold on your credit card for $200 to $500 as a deposit, separate from the daily rental rate.
  • Airport rentals cost 10 to 15 percent more than off-airport locations in the same city because of facility fees.
  • One-way rentals charge a drop-off fee that can range from $20 to $200 or more depending on distance and the rental company.
  • Your own auto insurance or credit card coverage often covers rental cars, so buying the rental company's insurance may be redundant.

What documents and information you need before you arrive

Bring your physical driver's license — a digital copy on your phone is not enough. The rental agent will scan it and verify your driving record on the spot. If your license is expired, most companies will not rent to you, even if you have a renewal process in progress.

You will need a credit card in your name. Debit cards are rarely accepted, and if they are, the deposit hold can be much larger and take longer to release. The card does not have to match the name on your license if you can explain the difference (marriage, name change), but bring documentation. Some companies ask for a second form of ID, such as a passport or military ID, especially if you are under 25.

Proof of insurance is required. This can be your own auto insurance card, a letter from your insurer stating you have coverage for rental cars, your credit card's rental car protection (check your card's benefits guide or call the issuer), or the rental company's insurance. If you are unsure whether your policy or credit card covers rentals, call your insurer or card issuer before you arrive — waiting until the rental counter wastes time and forces you to buy coverage you may not need.

How insurance and damage coverage actually works

Rental companies offer Collision Damage Waiver (CDW) or Loss Damage Waiver (LDW) — these are the same thing with different names. They waive your responsibility for damage to the rental car if you are in an accident. The daily cost is typically $15 to $30, depending on the car class and location. Without it, you are liable for all damage, even if the accident was not your fault.

Your own auto insurance often covers rental cars at the same deductible as your personal vehicle. If your deductible is $500, you pay $500 out of pocket for rental damage, and your insurance covers the rest. Credit card rental protection works similarly — American Express, Visa Signature, and Mastercard World Elite typically cover collision and theft, but not liability (injuries or damage to other people's property). Read your card's benefits guide or call the issuer to confirm what is covered and what the exclusions are.

Liability coverage — which pays for injuries or damage you cause to other people — is included in the rental company's base rate and is mandatory in every state. You cannot waive it. If you cause an accident and your liability limits are low, the rental company's insurer may pursue you for costs above those limits, so check that your personal policy or the rental company's coverage is adequate for your comfort level.

Declining the rental company's CDW and relying on your own insurance or credit card is usually cheaper, but only if you actually have coverage. If you do not, buying CDW is the only way to protect yourself from a large bill.

Understanding the rental contract and hidden fees

The rental agreement is a legal contract, and rental companies enforce it strictly. Read the sections on fuel, mileage, late return, and damage before you sign. Most U.S. rentals are unlimited mileage, but some budget companies or long-term rentals cap mileage at 100 or 150 miles per day, charging $0.25 to $0.50 per mile over the limit.

Fuel charges vary. Some companies charge a premium per gallon if you return the car without a full tank — often $5 to $9 per gallon, which is two to three times the market rate. Others charge a flat fee ($15 to $25) if the tank is not full. A few offer a "pre-purchase" option where you pay for a full tank upfront at a lower per-gallon rate, but you forfeit any unused fuel. The cheapest option is usually to fill the tank yourself at a gas station near the rental location before you return the car.

Late return fees start at $40 to $75 for the first hour and can escalate to a full day's rental charge if you are more than a few hours late. Some companies charge by the hour; others charge a flat fee for any overage. Check the contract for the exact policy.

Additional driver fees ($10 to $15 per day per driver) explore if someone other than the primary renter will drive. Some companies waive this for spouses or household members; others charge for everyone. Undisclosed additional drivers can void your insurance coverage, so add anyone who will drive before you leave the lot.

Comparing rental companies and booking strategies

The major national chains are Enterprise, Hertz, Budget, Avis, and National. Regional companies like Fox Rent A Car and Thrifty operate in specific areas. Prices vary significantly by location and date, so comparing across companies is essential. Autoslash, Kayak, and Priceline aggregate rates from multiple companies and show the total cost including taxes and fees upfront.

Booking directly with the rental company sometimes offers loyalty discounts or corporate rates if you have a code from your employer or membership organization. Booking through an aggregator can lock in a lower rate, but making changes (extending the rental, switching car types) is often easier and faster through the rental company's website. If you book through an aggregator and need to modify your reservation, check the aggregator's cancellation policy first — some charge a fee to cancel and rebook.

Prices fluctuate daily, especially for peak travel dates. Booking 2 to 4 weeks in advance typically offers better rates than booking a few days before, but prices can drop closer to your travel date if demand is low. Setting up a price alert on Autoslash or checking the rental company's website weekly helps you catch rate drops.

What to do when you pick up and return the car

Arrive early and inspect the car before you sign. Walk around with the rental agent and note any existing damage — dents, scratches, stains, broken lights — on the contract. Take photos or video of the car's condition with your phone and email them to yourself or the rental company. This protects you if the company tries to charge you for damage you did not cause.

Test the basics: wipers, lights, air conditioning, and the spare tire location. Check the fuel gauge and confirm it matches what the contract states. If anything is broken or missing, tell the agent when ready and ask for a different car or a written note on your contract.

At return, fill the tank yourself at a nearby gas station if the contract charges a premium for fuel. Return the car at the agreed time and location. The agent will inspect it for damage, check the mileage and fuel level, and process your credit card. This usually takes 10 to 15 minutes. Keep your receipt and the contract copy for your records.

Renting across state lines and international travel

Renting a car in one state and returning it in another is common and straightforward — the drop-off fee covers the logistics. However, some rental companies restrict travel to certain states or charge extra for crossing state lines. Check the rental agreement or call the company before you book if your trip crosses multiple states.

Renting a car to drive into Canada or Mexico is possible but requires extra steps. You need the rental company's written permission, a passport, proof of Mexican auto insurance (required by Mexican law and not included in U.S. rental coverage), and sometimes an International Driving Permit. Most U.S. rental companies allow Canada travel but restrict Mexico to specific border regions. Rental rates for cross-border trips are higher, and your credit card's rental coverage may not explore outside the U.S. Call the rental company and your credit card issuer before you book.

Frequently Asked Questions

Can I rent a car if I do not have a credit card?

Most major rental companies require a credit card for the deposit hold. Some accept debit cards, but the hold is larger and takes longer to release. A few independent or budget companies may accept cash or prepayment, but options are limited. Call ahead to confirm before you arrive.

What happens if I get into an accident while renting?

Call the rental company when ready and report the accident. If anyone is injured, call 911. Do not admit fault or sign anything except the police report. The rental company will file a claim with its insurance. If you bought CDW, you typically pay nothing. If you did not, you are liable for repairs up to the car's value, minus your insurance or credit card coverage.

Can I return the car to a different location than where I picked it up?

Yes, but you will pay a one-way or drop-off fee. This fee varies by distance and rental company — returning a car 50 miles away might cost $25, while returning it across the country could cost $200 or more. Ask for the fee before you book.

Do I have to buy the rental company's insurance?

No. If your auto insurance or credit card covers rental cars, you can decline the rental company's CDW. However, if you have no coverage, buying CDW is the only way to protect yourself from liability for damage. Verify your coverage before you arrive at the rental counter.

What is the age requirement to rent a car?

You must be at least 18 years old to rent a car in the U.S. However, most major companies charge an underage driver fee of $15 to $30 per day if you are under 25. Some companies do not rent to drivers under 21. Check the rental company's age policy when you book.