How to Pre-Authorize a Credit Card: Hold Amounts, Capture, and Release

To pre-authorize a credit card, a merchant uses the “authorization only” function on a payment terminal or online gateway to send the card details and an estimated dollar amount to the issuing bank, which reserves that amount against the cardholder’s available credit and returns an approval code. The funds don’t move at that point. They sit on hold until the merchant finalizes the sale with a capture, adjusts the amount, or reverses the hold entirely.

The mechanics look simple at the terminal, but the rules around estimates, hold durations, and reversals come from the card networks, and getting them wrong costs merchants fees and chargeback liability. Here is what the process requires and how to manage it from the first swipe through the final settlement.

What You Need Before Running a Pre-Authorization

A pre-authorization requires a merchant account with a payment processor and either a physical point-of-sale terminal or a secure online payment gateway connected to the card networks. The software has to offer an “authorization only” or “pre-auth” option that is separate from a standard sale. That distinction is the whole point: it tells the system to reserve funds rather than move them.

Every merchant is assigned a Merchant Category Code (MCC) that identifies the type of business. The MCC drives what the card networks will let you do with a hold. Lodging, vehicle rental, and cruise line merchants get broader authorization windows than a general retailer, which matters when the final bill may not be known for days.

To start a hold you need the cardholder’s full account number, the expiration date, and the card verification code (three digits on the back of Visa, Mastercard, and Discover; four digits on the front of American Express). Those details go into the terminal or gateway along with a specific dollar amount.

That dollar amount has to be a genuine estimate of what the cardholder will actually spend. Visa’s merchant processing rules prohibit arbitrary amounts and state that an estimated authorization should not include incidental charges such as tips or a buffer for potential damages.¹ A hotel that pads a hold with an extra $500 “just in case” risks running afoul of those rules.

Running the Authorization

Once the card details and estimated amount are in the system, trigger the request by swiping the card, inserting the chip, tapping, or clicking submit in an online environment. The terminal sends an electronic query through the card network to the issuing bank. The bank checks the cardholder’s available credit against the requested amount, validates the security credentials, and sends a response. The round trip usually takes a few seconds.

An approval returns an authorization code, typically two to six digits long.² Record it. You will need it to finalize, adjust, or cancel the transaction later. A decline comes back as a response code identifying the reason: insufficient credit, a security flag, a card reported lost or stolen.

Behind the scenes, the approved hold reduces the cardholder’s available credit by the authorized amount. The money has not moved. The cardholder sees it as a “pending” charge on their account, and their borrowing capacity drops by that much until the hold is captured, adjusted, or released.

Zero-Dollar Verification or Dollar-Amount Hold

Not every pre-authorization has to tie up funds. A zero-dollar authorization, sometimes called account verification, confirms that a card number is valid, the account is open, and the card has not been reported lost or stolen, without holding any amount against the credit line.³

Zero-dollar checks fit situations where the real charge comes later: a subscription service validating a card before a free trial, a hotel confirming a card at booking when the charge posts at checkout, an online retailer verifying a card saved to a customer profile. If verification fails, you can ask for a different card without having to reverse a hold.³

A dollar-amount hold is the right tool when you need assurance that specific funds will be available when the final bill is tallied, as with a hotel room, a rental vehicle, or a pay-at-the-pump fuel purchase.

Setting the Hold Amount

Hold sizes vary by industry, shaped by card-network rules and practical necessity.

Gas stations: pay-at-the-pump terminals commonly place a hold ranging from $1 to over $100 before fueling begins, then adjust to the actual purchase amount at settlement.
Hotels: most authorize the full room cost plus a per-night buffer for incidentals such as room service or the minibar, commonly $50 to $200 per night on top of the room rate.
Restaurants: when a tab is opened or a card is handed over before the meal ends, the estimated check amount is authorized. Mastercard allows U.S. restaurant merchants to add a tip of up to 20% above the original authorization without a new approval.
Car rentals: companies often hold the estimated rental total plus a deposit for fuel, tolls, and potential damage, which can run several hundred dollars above the expected rental cost.

Whatever the industry, the authorized amount still has to track a genuine estimate of what the cardholder will spend, not an arbitrary cushion.

Capturing, Adjusting, or Voiding the Hold

A hold is only half the transaction. Converting it into an actual charge takes a second step called a capture. Locate the pending authorization in your system, confirm or adjust the final dollar amount, and submit it for settlement. The hold becomes a real charge, and the funds move into the merchant’s bank account in the next settlement batch, usually overnight.

If the final bill is lower than the authorized amount, capture the lower amount and send a partial authorization reversal. Visa requires that reversal within 24 hours of completing the transaction whenever the authorized total exceeds the final charge.¹ The reversal tells the issuing bank to release the difference back to the cardholder’s available credit. Skip it and the cardholder’s funds stay tied up until the hold expires on its own.

When a transaction is canceled altogether, perform a void or full reversal. That message tells the bank to drop the hold completely, usually freeing the cardholder’s credit within a business day or two. Forgetting to void a canceled transaction is one of the most common reasons a hold lingers.

How Long Holds Last

Maximum hold duration depends on the merchant’s category code and the card network’s rules. Visa sets these timeframes:

Lodging, vehicle rental, and cruise line merchants: 30 days from the date of the original estimated authorization.¹
Other rental categories: 10 days.¹
Card-not-present transactions (online purchases): 10 days.
Standard card-present transactions: 5 days.

These are ceilings for merchants, not promised release times. Most retail holds drop within a few days. American Express notes that pending transactions on its cards may take up to 30 days to post in some cases, though most credit card purchases typically appear within three days.⁴

Fees and Liability for Mishandled Authorizations

Card networks enforce their hold rules with fees. Visa assesses a Misuse of Authorization System Fee on approved authorizations that the merchant never follows up with a clearing transaction or a reversal.¹ A separate Unmatched Clearing Fee hits when a settlement comes through without a matching authorization. Both add up quickly across thousands of transactions.

Dispute liability is the bigger risk. If an estimated authorization lacks the proper indicator code, or if the transaction identifier does not match between the initial authorization and any later adjustment, the issuing bank can shift chargeback liability to the merchant.¹ That is why the 24-hour reversal window on overages matters so much. Miss it and the merchant pays, not just in cardholder inconvenience but in direct financial exposure.

When a Hold Won’t Release

From the cardholder’s side, a lingering hold is almost always a merchant-side problem that can be cleared with a phone call. Ask the business to send a void or reversal, and note the date and time they confirm it was processed. Hotels and rental companies handle this routinely at the front desk.

If the merchant cannot or will not help, call the number on the back of the card. Give the issuer the hold amount, the date it appeared, and confirmation that the underlying transaction is either complete or canceled. The bank can often contact the merchant’s processor directly, and once the network’s maximum timeframe has passed it can release the hold on its own.

One boundary worth flagging: holds placed on a debit card tie up actual checking-account cash, not borrowing capacity, and disputes over them run under the Electronic Fund Transfer Act and Regulation E rather than credit-card dispute rules. Banks must investigate electronic fund transfer errors within 10 business days and, if they need the full 45-day extension, provisionally credit the account within those first 10 business days.⁵ A pre-authorization against a credit card doesn’t trigger those timelines; a disputed debit hold does.

1
Visa. Authorization and Reversal Processing Requirements for Merchants
2
University of Rochester. Process for Telephone/Voice Authorization of Credit Card Transactions
3
Visa. Account Number Verification Service
4
American Express. What You Should Know About Pending Transactions
5
eCFR. 12 CFR Part 205 – Electronic Fund Transfers (Regulation E)