Incidental charges are optional secondary costs a merchant adds to your bill on top of the base price you agreed to pay, covering things like minibar snacks, valet parking, rental car fuel top-offs, or court filing fees passed through by your attorney. Because the final amount is unpredictable, merchants place a temporary authorization hold on your credit or debit card to guarantee payment. That hold reduces your available balance for days, and understanding how it works is the difference between a smooth trip and a bounced rent check.
Where You’ll See Incidental Charges
The term shows up most often at three places: hotels, car rental counters, and professional service invoices.
At a hotel, anything you consume or use beyond the base room rate qualifies. Room service, minibar items, valet parking, in-room movies, premium Wi-Fi, spa treatments, and phone calls made from the room all get tracked to your room number and appear on the folio at checkout. One thing incidentals are not: a mandatory resort fee. A resort fee is a fixed daily charge every guest pays. An incidental only appears when you actually use something.
At a rental car counter, incidentals include fuel refill charges when you return the car less than full, electronic toll pass-throughs with administrative fees added on, GPS units, child safety seats, additional-driver surcharges, and cleaning fees for smoke odor, pet hair, or heavy staining. Some of these hit your statement days after you’ve returned the car.
With lawyers, accountants, and consultants, incidentals are the out-of-pocket costs the firm pays on your behalf and passes through at cost: court filing fees (roughly $100 to over $500 depending on the case and jurisdiction), photocopying, courier delivery, deposition travel, and database research. They’re not profit centers, but they accumulate quietly. Asking for itemized statements during a long matter keeps them visible.
How Authorization Holds Work
When you hand over a card at check-in or a rental counter, the merchant doesn’t charge you. It sends a preauthorization request to your card issuer, which places a temporary hold on part of your available balance. The hold covers the base cost of the stay or rental plus an estimated cushion for incidentals.
Amounts vary. Disney World hotels place a $100 hold for estimated incidentals on top of any room balance due, with additional incremental holds added automatically if your spending exceeds that.1Walt Disney World. Credit Card and Payment Card Holds at Disney World Resort Hotels Other hotels hold $50 to $200 per night depending on the property. Avis places a hold equal to the estimated rental cost plus a minimum of $250 for incidentals at pickup.2Avis Rent a Car. How Much Does It Cost To Rent A Car
The hold is not a charge. No money actually leaves your account. But the held amount is subtracted from your available credit or checking balance, so you can’t spend it elsewhere until the hold drops off.
Why Debit Cards Carry Extra Risk
On a credit card, a hold reduces your available credit. Unless you’re near your limit, you probably won’t notice. On a debit card, the hold reduces the cash in your checking account. A $300 hotel hold on a debit card means $300 of your actual money is inaccessible until the hold clears.
Some hotels hold 115 to 120 percent of the room charge plus tax on debit cards. If your balance is tight, that freeze can cause other transactions to bounce, triggering overdraft fees of $35 or more per item. The hold itself costs you nothing. The cascade of overdrafts it triggers can be expensive. Using a credit card at check-in avoids the problem entirely, even if you plan to settle the final bill with a debit card at checkout.
How Long Holds Take to Drop
Once you check out or return the car, the merchant sends the final charge to your card issuer and requests release of any remaining hold. Timing then depends on your card type and your bank.
Credit card holds typically clear within one to three business days after the final charge posts. Debit card holds can take longer, usually one to five business days, because banks must reconcile the hold against the final transaction before releasing funds back to your available balance.
Card networks set the outer limits. Mastercard’s processing rules allow preauthorization holds to remain for up to 30 calendar days before the issuing bank must release them, though most merchants settle well before that deadline.3Mastercard. Transaction Processing Rules If a hold is still showing after a week, call your bank. Banks can manually release holds once they confirm the merchant has submitted the final charge.
Disputing an Incorrect Charge
A hotel might bill you for minibar items you didn’t touch, or a rental company might charge a cleaning fee for damage that was already there. Your dispute rights depend on how you paid.
Credit Card
The Fair Credit Billing Act gives you 60 days from the date of the billing statement containing the error to send a written dispute to your card issuer.4Office of the Law Revision Counsel. 15 USC 1666 – Correction of Billing Errors The dispute must go to the billing address the issuer designates for that purpose, not to customer service. Once received, the issuer has 30 days to acknowledge it and up to two full billing cycles (no more than 90 days) to investigate. During that time, it cannot try to collect the disputed amount or report it as delinquent.
Debit Card
Debit disputes fall under the Electronic Fund Transfer Act and Regulation E. Your bank has 10 business days to investigate after you report the error.5eCFR. 12 CFR Part 205 – Electronic Fund Transfers (Regulation E) It can extend the investigation to 45 days, but only if it provisionally credits the disputed amount to your account within those 10 business days so you can use the funds while the investigation continues. The practical difference: a debit dispute pulls money out of your account first and puts it back later.
Reducing the Impact of Holds
Use a credit card at check-in and at the rental counter. That single move keeps holds from freezing cash you need for other bills. If you prepay a room in full before arrival, some hotels will only hold the incidental cushion rather than the full stay plus incidentals.
Ask what the hold amount will be before handing over your card. If it seems high compared with what you plan to spend, ask whether a cash deposit reduces it. At checkout, ask the hotel to send the final charge and release notification to your bank right away rather than batching it. Settling incidentals as you go, instead of charging everything to the room, keeps the running hold from creeping up during your stay.
For rentals, return the car with a full tank and take timestamped photos of its condition at pickup and return. That eliminates the two most common sources of surprise charges that arrive on your statement after you’ve left the lot.
Two Boundaries Worth Knowing
The IRS uses “incidental expenses” in a much narrower sense than hotels do. For tax purposes, incidental expenses are only tips given to porters, baggage carriers, and hotel staff.6Internal Revenue Service. Publication 463 (2025), Travel, Gift, and Car Expenses Laundry, lodging taxes, phone calls, and transportation between your hotel and a restaurant are specifically excluded, even though the hotel calls all of them incidentals. The federal per diem rate for incidental expenses only is $5 per day anywhere in the continental United States, usable in place of tracking actual costs if you didn’t pay for meals that day.7IRS.gov. Special Per Diem Rates
The FTC’s Rule on Unfair or Deceptive Fees, effective May 12, 2025, requires hotels, motels, and short-term rentals to include all mandatory fees in the total price shown upfront.8Federal Trade Commission. The Rule on Unfair or Deceptive Fees: Frequently Asked Questions It does not eliminate incidental charges. Because incidentals are optional and depend on what you actually use, they can still sit outside the upfront total. The hotel does, however, have to disclose the nature, purpose, and amount of any additional fee before you agree to pay it, so vague labels like “service fee” no longer cut it.9Federal Trade Commission. Rule on Unfair or Deceptive Fees