Sought-after restaurants release their tables in batches on a fixed date rather than continuously. The practice solves several operational problems that rolling availability creates.
Staged releases spread the load
Opening a full year at once would produce a single surge of demand followed by nothing, which is difficult for both the booking system and the staff answering enquiries.
Releasing one month at a time on a known date converts that into a predictable, repeating event that the restaurant can prepare for.
It also gives every prospective guest an equal starting point, which is easier to defend than availability appearing at unannounced moments.
Small kitchens need firm numbers
A restaurant serving a set menu to a small room buys specific quantities of specific ingredients, and the margin for error is narrow.
Bookings confirmed well ahead allow the kitchen to commit to suppliers and to plan around seasonal availability rather than adjusting daily.
This is why these restaurants often take deposits or full prepayment. The purchasing decision is made long before the guest arrives.
Long windows deter resale operations
Where tables are valuable, third parties will attempt to book and resell them, which damages the restaurant's relationship with its actual customers.
Named reservations, deposits and identity checks at the door make resale impractical, and a fixed release date makes automated booking easier to detect.
Some restaurants deliberately hold back a portion for walk-ins or same-day release for the same reason, keeping a route that resale cannot capture.
Cancellation policy does the remaining work
A booking made months ahead has a high chance of changing, and without a penalty the restaurant would face substantial unfilled capacity.
Deposits convert most of that risk into either attendance or compensation, and the level is usually set to be noticeable rather than punitive.
Returned tables are then released into a waiting list, which is where a significant share of last-minute availability actually comes from.
The system favours planners over travellers
Booking a year ahead suits residents and those with fixed plans, while travellers rarely know their dates that far in advance.
Counter seating, lunch service and single-diner availability are the practical routes for visitors, since these move later and are less contested.
Contacting the restaurant directly about short-notice openings is also more effective than it appears, because cancellations are handled by people rather than by the booking page.