Tip Adjustment in Restaurants: The Rules That Apply

The tolerance is a published number, and it just changed

Above the applicable floor limit, Visa requires the clearing amount and the authorisation amount to match unless Table 7-10 permits a variation. For restaurants the current figures are worth knowing exactly. Effective 21 February 2026 in the US Region, MCC 5811 (Caterers), 5812 (Eating Places and Restaurants) and 5814 (Fast Food Restaurants) are permitted a difference of up to 30%. In the AP, Canada, CEMEA, Europe and LAC regions, effective the same date, MCC 5812 and 5814 are up to 20%. Drinking places under MCC 5813 remain at up to 20%, as do taxicabs and limousines, beauty and barber shops and health and beauty spas. Other cardholder-initiated transactions in a card-absent environment are up to 15%. And the amounts must always match following a partial authorisation response — which is the case a busy service gets wrong, because a partially approved card is exactly the one a server is most likely to hand back for a tip to be written on.

A tip is not something you estimate

Restaurants sometimes reach for an estimated authorisation to cover an anticipated tip. Visa's requirements for an estimated authorisation request rule that out in a single line: the request must not include any amount covering potential damage, theft, other delayed charges, insurance premiums, or tips. The same section requires the estimated amount to be a genuine estimation of what the cardholder will spend, requires the cardholder to be notified of the estimated amount and that subsequent authorisation requests may be submitted, and requires an estimated authorisation indicator in the request. The incremental authorisation that follows an approved estimate must use the incremental indicator and the same transaction identifier. For a restaurant, the ordinary path is not an estimate at all: authorise the bill, let the guest write the tip, and settle the adjusted amount within the tolerance above.

Adjust before the approval expires

Visa's Table 5-12 gives a card-present transaction an approval response validity of 5 calendar days, measured from the date of a valid authorisation. That is the real deadline behind “batch daily,” and it is why an adjustment sitting in an unclosed batch over a long weekend is a problem rather than a habit. Table 5-14 covers the other direction: where the final transaction amount is less than the sum of the authorised amounts — a guest who tips nothing on a pre-authorised tab, for instance — the difference must be reversed within 24 hours of transaction completion. Both clocks belong to the merchant, not to the terminal vendor, and both are easier to meet with a same-day close than with a batch that runs when someone remembers.

The tip is the employee's money before it is anything else

29 CFR 531.53 states that tips received by an employee include amounts transferred by the employer to the employee pursuant to directions from credit customers who designate amounts to be added to their bills as tips. A card tip is a tip. 29 CFR 531.52(a) defines a tip as a sum presented by a customer as a gift or gratuity in recognition of some service performed, distinguished from payment of a charge made for the service, and notes that whether a tip is given and its amount are matters determined solely by the customer. 531.52(b) then states that an employer may not keep tips received by its employees for any purposes, regardless of whether the employer takes a tip credit, and that an employer may exert control over tips only to distribute them to the employee who received them or to operate a compliant tip pool. Managers and supervisors may not keep any portion of an employee's tips, though a manager may keep tips received directly from customers for service they directly and solely provided. Before you configure any deduction against a charged tip in a POS or payroll system, get the position confirmed against current Department of Labor guidance and your state's law, several of which are stricter than the federal floor. This is general information, not legal advice (September 17, 2026).

Service charges are a different animal in every rulebook

29 CFR 531.55 states that a compulsory charge for service, such as 15 percent of the amount of the bill, imposed on a customer by an employer's establishment is not a tip, and that service charges which become part of the employer's gross receipts are not tips, though sums distributed to employees may be used in their entirety to satisfy the Act's monetary requirements. The IRS takes the same line for tax: service charges added to a bill or fixed by the employer that the customer must pay are non-tip wages when paid to an employee, subject to Social Security tax, Medicare tax and federal income tax withholding, and the employer cannot use them when computing the section 45B credit. The IRS lists large party charges, bottle service charges, room service charges, contracted luggage assistance charges and mandated delivery charges as common examples. It also draws the line clearly on suggested amounts: where a bill shows sample tip calculations but the customer may enter any amount or leave the line blank, the payment is voluntary and is a tip rather than a service charge. If your POS turns an auto-gratuity into a line the guest cannot change, you have created wages, not tips — with different tax, different reporting and a different effect on the tip credit.

Reporting deadlines your POS should be feeding

The IRS treats charged tips that you distribute to the employee as cash tips for reporting purposes, alongside tips received directly from customers and tips from a sharing arrangement. Employees who receive cash tips of $20 or more in a calendar month must report the total to the employer in writing by the tenth day of the following month; below $20 they need not report to the employer but must still report the amounts as income. For distributed service charges the employer must keep a record of the employee's name, address and Social Security number, the amount and date of each payment, and the income, Social Security and Medicare taxes collected. The IRS notes that in an examination it may ask an employer to demonstrate how sales subject to service charges are distinguished from sales subject to tipping, and may ask for point of sale summary reports and walk a complete transaction from the customer's bill through to payroll. That is the standard your reporting should be built to meet: per-server attribution, charged tips separated from service charges, and a trail from the ticket to the paycheque. This is general information, not legal advice (September 17, 2026).