September opens with the same value floor as August: Burger King. Its King Deals e-coupon set runs to 4 October 2026, and we read all 20 coupons off Burger King's own artwork rather than a secondhand list, which is how we can say the live set is numbered DL1 to DL20 with no PM-prefixed code in it at all. The best of them cut 36% to 62%: DL12 gets two burgers, a BBQ Chicken Burger or a Whopper Jr., for $6.50 (U.P. $13.10), which is $3.25 a burger and the cheapest burger anywhere on this page; DL8 gets 9pc BK Nuggets with an ice lemon tea for $5 (U.P. $13.15, 62% off); DL14 gets a Whopper with Cheese and onion rings for $7.50 (U.P. $14.75); and DL5 gets a coffee, hot chocolate or SJORA for $2. All are redeemed by typing the code at the kiosk. New this month, and needing no code at all: Burger King's own Offers page now carries Value Your Way at $6.20 a set and a 5-in-1 combo at $9.50, while the Taste of Singapore rendang range that ran to 31 August has come down. McDonald's cheapest line is not the one everyone quotes: McSaver meals start at $5, a 1pc Chicken McCrispy, Filet-O-Fish, McChicken or Smoky Beef meal, after breakfast hours. Its live September campaign is the Samurai Meals Challenge in the app, running to 30 September. MOS Burger runs two Deluxe Mushroom Wagyu burgers for $10 every Monday and Tuesday, against a menu price of $8.10 each. Shake Shack's Shack Meal is a burger, side and drink from $15.10 on weekday lunchtimes through the Happy Point app. Carl's Jr does publish prices, just not on the page most people read: its own ordering site lists the Famous Star at $9.50 and the returning Portobello Mushroom Burger at $11.90, and its best value is a $50 e-voucher booklet worth $70 in bill value. And Mom's Touch, open since 14 August on South Bridge Road, has finished its opening offers, though its signature chicken burger is still $6.95.
Six burger deals are still live in Singapore this September, and the cheapest burger on the page costs $3.25.
> Quick view: Burger King's DL12 coupon is the cheapest burger here at 2 for $6.50 (U.P. $13.10), valid to 4 Oct 2026. Prices across this page run $2 to $15.10. The catch: BK coupons are void at Changi Airport, Drive-Thrus and on every delivery app.
### Why September changed this page Three claims that were true in August are not true now, and we have taken them out rather than let them sit. Burger King's Taste of Singapore rendang range ran 14 July to 31 August 2026 and has come off Burger King's site. McDonald's Old Chang Kee collaboration is finished: mcdonalds.com.sg/curryburgers now returns a 404. And Mom's Touch's opening offers, the $1 set upgrade and the LE SSERAFIM selfie cut, both ended with August, with nothing announced to replace them.
Two claims moved rather than died. The $6.50 McSpicy meal is still on mcdonalds.com.sg/mcspicy with no end date, but that page is headed as a National Day offer, it has been dropped from McDonald's own sitemap, and a new Vote for McSpicy campaign has taken the McSpicy slot on the site. We have kept it, demoted, with that caveat attached. Carl's Jr's three limited-time items are all still on its menu.
### What is new this month Burger King's Offers page now carries two set prices that need no coupon code at all: Value Your Way at $6.20 a set (a Fish Burger, Cheeseburger or BBQ Chicken Burger set) and a 5-in-1 combo at $9.50 (a Double Fish, Whopper or Spicy Chicken King with a choice of Medium Fries or Onion Rings, a Toro Pie, 4pc BK Nuggets and a small soft drink). Neither has a published end date.
McDonald's September campaign runs inside its app. The Samurai Meals Challenge, 20 August to 30 September 2026, unlocks $2 off a minimum $10 order after two Samurai Burger meals, free Katsu Chicken Tenders (3pc) after four, and a free OREO McFlurry after six. It is in-store or takeaway only and needs a MyMcDonald's Rewards account with personalised deals switched on. Buy five Seaweed McShaker Fries in the same window and the sixth is free. The UOB One Breakfast Bagel coupon has stopped being issued. McDonald's own UOB page says the Friday drops in UOB TMRW ran 7 August to 4 September 2026, so there is nothing left to claim, and the coupon terms give a claimed one 30 days from issue, which puts the last of them at 3 October 2026. The cashback is the part that survives: up to 20% on McDonald's and McDelivery with a UOB One card, no end date published. And McDelivery has cut its minimum order to $8, though a small-order fee applies between $8 and $11.99.
Carl's Jr moves from unpriced to priced, and it is our correction rather than a change at Carl's Jr. Its marketing site still costs none of its limited-time items, but its own ordering site at order.carlsjr.com.sg costs the entire standing menu: Famous Star $9.50 a la carte and $14.90 as a combo, Portobello Mushroom $11.90 and $17.30. Two offers there beat every burger price on the page. The e-voucher booklets are the best Carl's Jr value on this page, $50 for $70 of bill value (29% off) and $30 for $35, with the honest catch that you prepay and have to spend the full face value across several visits before the saving is real. The Star Banquet sharing set is $45.50 against $56.90. A Yakiniku Chargrilled Pork Burger is new online at $10.50, or $15.90 as a combo.
On MOS Burger we can now price the discount properly. MOS Burger's own menu lists the Deluxe Mushroom Wagyu Burger at $8.10 a la carte, so two for $10 is 38% off $16.20. If Monday and Tuesday do not suit you, its cheapest burgers, the MOS Burger and the Fish Burger, are $4.30 each on the standing menu.
### How to actually save Read the coupon code prefix at Burger King. The live set is DL1 to DL20, so any PM code you are handed is dead and the kiosk will reject it. Codes are replaced each quarter, which is exactly why stale PM codes keep circulating in roundups.
McDonald's discounts die at the delivery apps. McSaver, the Breakfast McSaver and the $6.50 McSpicy are all collection-only prices: order any of them on McDelivery, GrabFood, foodpanda or Deliveroo and you pay full price. McSaver is also excluded at the Lido, Gardens by the Bay and Changi Airport (Jewel, T2, T3) outlets.
Shake Shack's set-price lunch only exists inside the Happy Point app, not at the counter, and the $15.10 is a floor rather than a ceiling: top-up charges apply on selected menu items.
Two Shake Shack traps are worth naming because they still rank in search. The 1-for-1 people remember was a two-day event in late June 2026. And the "weekly free treat" pages, with a rolling August schedule of Hot Chicken, ShackMeister Ale and ShackBurger, are from the SG60 campaign in 2025, not this year. Check the date stamp before you travel for one.
### How we picked Every deal here was checked against the brand's own channels rather than aggregator listings: Burger King's coupon artwork on bkcoupons.sg and its Offers page on burgerking.com.sg, McDonald's own campaign and rewards pages, Carl's Jr's individual product pages and its own ordering site at order.carlsjr.com.sg, MOS Burger's own menu and promotion post, and Shake Shack Singapore's own site. That meant downloading and reading the Burger King coupon images one by one instead of copying a code list, which is how we caught that the PM13, PM14 and PM15 codes still in wide circulation belong to an expired set. Where a promotion has no announced end date, we say so instead of guessing one. Prices are as published by each brand; items marked "++" add 10% service charge and 9% GST.
### Related reads
- 8 Best Fried Chicken Deals in Singapore (2026) covers the chicken side of the same fight
- Best Pizza Deals in Singapore (2026) covers the 1-for-1s and $5 pizzas
- Burger King Singapore App & Promo Guide 2026 explains how the coupons, app and stacking actually work
- McDonald's Singapore Promo & App Deals 2026 is the year-round McDonald's playbook
- McDonald's Samurai Burger Returns to Singapore has the full lineup behind this month's Meals Challenge