Stacked discounts on booking sites: what the hotel keeps after each promotion

Stacked discounts are two or more Booking.com promotions applied to the same rate. Booking.com's Partner Help (read 7 November 2026) says products in the same category cannot be combined, Genius combines with other pricing products, and up to three discounts stack in total, with only the highest from each category applying.

A guest books a room at a price lower than any rate the revenue manager approved, and no single promotion explains it. Four offers were switched on in different weeks, and the site combined them. After reading this you will know which Booking.com promotions for hotels can stack, how to work the price down to what the hotel keeps, how to set a floor before switching on another offer, and what a discount advertisement must state in Türkiye.

Which Booking.com promotions can stack, and which cannot?#

Booking.com's Partner Help says discounts can be combined, with two hard limits: products in the same category cannot be combined, and no more than three discounts apply in total, with only the highest from each category counting.

The offers a hotel can switch on fall into groups: Genius (the site's membership discount program), deals (Basic, Last-minute, Early Booker), the mobile rate, the country rate, and campaign deals (Getaway, Early Year, Late Escape, Black Friday, Limited-time). The grouping matters more than any single offer, because the rules govern combinations, not individual discounts.

The category rule in one line#

Same category means one winner. Two deals cannot both apply, so the higher of the two reaches the guest. The three-discount ceiling then applies across categories: up to three discounts in total, with only the highest from each category counting, per the Genius marketing article (updated 2 September 2026).

Where Genius sits#

Genius is the exception: it combines with other pricing products regardless of any Genius value-adds the hotel has chosen. Mobile and country rates each stack with Genius and with Basic, Last-minute and Early Booker deals, but not with each other, and not with the five campaign deals, per the mobile rates article (updated 11 June 2026) and country rates article (updated 4 November 2026). The Preferred Partner Programme cannot be combined with other pricing products, because it does not affect traveler-facing promotions or discounts.

Not every guest sees every discount. Booking.com calls it audience overlap when a traveler sees several, and where those cannot be combined the guest receives the highest one. The practical reading: the hotel is not choosing one discount, it is choosing a set, and the set has rules the hotel did not write. If you are weighing Genius itself, read how Genius works and how to decide on it.

These combination rules come from Booking.com's Partner Help article on setting up deals or promotions (opens in a new tab) (updated 20 July 2026, read 7 November 2026).

In what order are the discounts applied?#

The partner pages state which discounts combine and that only the highest from each category applies, but they do not publish a step-by-step arithmetic order, so the hotel should confirm the result on a real quote instead of assuming one.

What the pages do say: the category limit, the three-discount ceiling, and the highest-per-category rule. What they do not say: whether one percentage is taken before another, and how the site rounds the result.

The order matters more than it looks. Two 10% discounts taken one after the other give 19% off, not 20%, because the second is calculated on the reduced price. For example, 100 becomes 90, then 81. The gap is small per booking and visible over a season.

To check, search as a guest from the relevant country and device, with and without a signed-in membership, and read the price breakdown the site shows. Write down what you saw: the price, the room and rate plan name, the date, and which offers were live that day. When a stack produces a price nobody expected, ask the market manager to confirm the calculation in writing before the next campaign goes on.

What is left after every discount and the commission?#

Work the sheet from the rate the hotel publishes down to the cash it keeps: apply the discounts that can stack, then the commission on the discounted price, then the costs the hotel carries for that stay.

Build the sheet per room type and season, not per booking. A sheet that only works for one reservation tells the hotel nothing about the season. The row order is fixed: published rate, each stacking discount, the price the guest pays, commission on that price, net to the hotel, then the per-stay costs the hotel carries, such as breakfast, transfer or laundry included in the rate.

Commission stays a placeholder: use the hotel's own contracted rate from its agreement, never a market figure, and check in the contract which amount the commission is charged on. A discount cuts the net twice when commission is charged on the discounted price: once by the discount itself, once by the commission on the smaller base.

A worked sheet, with invented numbers#

Every figure in this table is invented for illustration, the discounts are not recommendations, and the order shown is the hotel's own model, to be confirmed on a real quote. A sheet like this is the practical way to compare two offers, for example 10% off a rate against a free extra of similar cost. Keep the sheet with the offer list, so the next person can see why the offer was switched on. For the wider comparison, see comparing channels by what the hotel keeps.

How do you set a floor before you switch on another offer?#

Set a floor per room type and season: the lowest net the hotel will accept, written down before any promotion is switched on, so a new offer can be tested against it in one calculation.

The floor is a net figure, not a published rate. It sits after discounts, commission and the costs the hotel carries. Build it from the room type's cost and the season's expected demand, not from what a competitor is showing.

Room types do not share a floor: a suite and a standard room have different costs and different price tolerance. Seasons do not share a floor either: a shoulder week and a sold-out weekend need separate numbers. Calculate the maximum combined discount the current stack can produce, then check that worst case against the floor before adding anything else.

Put the floor where reservations staff can see it, and make adding an offer a step that requires the check, not a favor someone does by email. Derived rates make the check faster: build them from the best available rate so the floor moves with the structure instead of being recalculated by hand. See building a rate structure with derived rates from BAR.

What does stacking do to parity checks and agency contracts?#

A stacked rate can look like an undercut even when the hotel approved every part of it, so the parity routine has to record which offers were live on the day, and the contract has to be read for what it actually covers.

A mobile rate or a country rate shown to a guest in one market can be seen by an agency or a corporate client comparing prices on the same day. Read the rate clause in each agency contract: does it name membership, mobile or closed-user-group rates, or only publicly available rates? The legal standing of parity clauses in Türkiye is not settled by this article; ask the hotel's legal adviser about the current position and about your own contracts.

The weekly check should record the price a guest actually sees, with device, country, membership status and date, not the price the hotel believes it set. Keep the offer list next to the parity log: a price that looks wrong is usually a discount someone switched on and forgot. Tell the agency account manager before a campaign runs, not after they find the lower price themselves. A full routine is described in a weekly rate parity check for direct and OTA prices.

What must a discount advertisement state?#

Since 1 August 2026, Article 14 of Türkiye's Commercial Advertising and Unfair Commercial Practices Regulation requires an advertisement announcing a discount to show the pre-discount price and the start and end dates of the discounted sale.

The amendment was published in the Official Gazette of 1 July 2026 (No. 33297) and came into force on 1 August 2026, per the consolidated text on the Mevzuat Bilgi Sistemi (opens in a new tab) (2026). For services, the pre-discount price is the price that applied just before the discounted price.

Where a service is sold through several channels, the pre-discount price comes only from the channel where the discount is offered. A discount that exists only on the booking site is measured against that site's price, not the hotel's own website price. The dates printed in the advertisement must match the dates the offer actually runs, so the extranet end date and the campaign artwork have to be set together.

This is a rule about advertising, not about pricing: it does not stop the hotel from discounting, it decides what the advertisement has to say. Confirm the scope, the penalties and your own case with a legal adviser before publishing.

How do you clean up offers nobody remembers?#

Once a quarter, list every offer live on the property, name the person who switched it on and the reason, recompute the worst-case net, and switch off what cannot be justified.

Look in two places: the promotions and rate plan pages in the extranet, and any campaign the market manager enrolled the hotel in by email. For each offer record: name, category, start and end date, who owns it, and why it exists. Recompute the stack: which other live offers it can combine with, and the worst-case net that combination produces against the floor.

Some offers end without anyone deciding. The New Property Deal, for example, is a 20% discount that reverts to the original price after three bookings or 90 days, whichever comes first, per Booking.com's Partner Help (updated 20 July 2026). Retire what fails the check: switch it off, note the date, and tell the market manager so it is not quietly switched back on. Keep the list; it is the input to next quarter's check, to the parity log and to the sheet that shows what the hotel keeps.

What to do next#

Take one room type this week, build the sheet from published rate to what is left, write the floor underneath it, and run every offer currently live against that floor. The stacking rules, the worked sheet, the floor, the parity log, the advertising check and the quarterly clean-up are one routine, not six: each one feeds the next, and together they replace the guesswork that produces a price nobody approved.