Dee Sargeant
Las Iguanas has decided Britain has suffered enough — and is now handing out free Margaritas to March birthdays like a tequila-fuelled act of national mercy. At a time when most of the country is skint, freezing and one minor inconvenience away from a meltdown, this may be the closest thing we are getting to a public service.
The chain is launching Marg Month across the UK, which is basically a month-long excuse to drown the tail-end of winter in lime, salt and very questionable decision-making. Think fruity Margaritas, spicy specials and enough tequila chatter to wake up every group chat in the country.
Best of all, if your birthday falls in March, Las Iguanas says you can grab a free Margarita on Tuesday, 24 March 2026. A real one too — worth £10.95 — not some tiny “on us” token that vanishes in two gulps. In a season full of bad weather and worse bank balances, that is the kind of madness people can get behind.
Free margaritas? Yes, really
So if you were born in March, Iguanas will give you a free Margarita on Tuesday, 24 March 2026.
Guests need to sign up via the Las Iguanas website, get a code, and show that code with a valid ID in the restaurant on the day. In return, they can claim a £10.95 Margarita on the house.
It is exactly the sort of offer that spreads fast. In an economy where plenty of so-called deals barely cover the garnish, giving away a proper cocktail with a real menu price attached has enough punch to make people take notice.
Las Iguanas is going all in on Marg Month
This is not some one-drink gesture buried halfway down a menu. Las Iguanas is making the Margarita the star of the month, with a line-up that runs from the Classic Margarita to fruit-forward favourites such as Strawberry and Passionfruit.
Then come the limited-edition specials, which sound determined to cause a stir.
The Bahian combines Altos Plata Tequila, triple sec, lime and warming spices, topped with toasted coconut and spring onion. The Hot Honey Mango mixes Altos Plata Tequila, triple sec, lime, mango, hot honey and chilli, bringing a bit of sweetness and a fair bit of attitude.
For those skipping alcohol, the Margarit-eh blends non alcoholic Almagest Blanco with lime and organic bitters, giving non-drinkers something with actual personality rather than the usual afterthought in a glass.
Britain loves an excuse and Las Iguanas knows it
The smart part of this campaign is that it understands exactly how people decide to go out. Nobody is crying out for another forgettable promotion with tiny print and no fun in it. What works is something easy to understand, easy to share and easy to build a night around.
Las Iguanas has nailed that formula.
A free birthday Margarita. A month of bright cocktails. Tapas. Bottomless brunch. A restaurant full of colour, music and enough energy to make staying in feel like a tactical error. Suddenly the booking makes itself.
That is why this offer has legs. Las Iguanas is not just selling a drink. It is selling a reason to get everyone off the sofa.
A campaign built for group chats
There is a reason this kind of promotion travels quickly. It has all the ingredients.
A clear freebie.
A fixed date.
A birthday hook.
A cocktail people already know and love.
And a setting that suits catch-ups, celebrations and the sort of night that starts casually and gets louder.
That makes Las Iguanas well placed to cut through in a crowded market. The best hospitality promotions are the ones people happily advertise to each other, and this one feels built for exactly that.
More than cocktails, it is about mood
Las Iguanas has never traded on subtlety. Since launching in Bristol in 1991, the brand has built its name on Latin American flavour, bright interiors, upbeat music and a style of dining that leans hard into fun.
That still matters. People are not only choosing what to eat — they are choosing atmosphere, energy and where they want to spend their time. Las Iguanas has long understood that a meal out is part food, part mood and part escape from whatever sort of day you have just had.
Marg Month plays directly into that strength.
Not just for tequila diehards
Another smart move is the breadth of appeal. There are classic Margaritas for traditionalists, fruitier serves for those who prefer something sweeter, bolder specials for the adventurous and a no-alcohol option for anyone staying off the spirits.
Vegetarian, vegan and flexitarian dishes across the menu also make the wider food offer more group-friendly, which matters because getting everyone to agree on a venue is often the hardest part of going out in the first place.
Las Iguanas has made it easier to say yes.
What Las Iguanas says
Las Iguanas Marketing Director Tom Patrick said: “At Las Iguanas, we love any excuse to celebrate the hugely popular Margarita, so Marg Month is the perfect opportunity to do this. It’s bold, bright and brings the fiesta wherever it goes, just like our restaurants. Whether you’re a classic lime fan or prefer a fruity twist, there’s a Margarita for everyone. And treating March birthdays to a free one felt like the perfect way to say Salud!.”
The quote lands because it matches the campaign. This is not trying to be restrained. It is supposed to be bright, sociable and a little bit over the top.
A free drink and a better excuse to go out
At a time of year when Britain can feel cold, expensive and chronically short on sparkle, Las Iguanas has come up with a promotion that knows exactly what it is doing. It is offering a free Margarita to March birthdays, surrounding it with a full month of tequila-fuelled theatre, and giving people a simple reason to gather, eat and make a bit of noise.
There are more serious restaurant campaigns out there. There are also far duller ones. Las Iguanas has chosen to be loud, cheerful and impossible to miss, which may be the smartest move of the lot.
Terms and conditions
Free Margarita valid only on 24th March 2026 for guests born in March who present a valid promotional code obtained from the Las Iguanas website and valid ID confirming their birth month. Strictly 18+. One free Margarita per eligible guest, redeemable against the cheapest Margarita on the bill. Valid for dine-in only and cannot be used for takeaway or delivery orders.
This offer cannot be used in conjunction with any other promotions, set menus, discounts, or vouchers. The offer is non-transferable and has no cash value or alternative. Excludes locations in Centre Parcs. In Scotland the offer is a free mocktail due to local laws. Las Iguanas reserves the right to amend or withdraw this offer at any time.
