National Taco Day is getting a seriously tasty London takeover as Two Twins Tacos and Black Lines join forces for a one-day-only celebration.
London taco lovers have another reason to head out this weekend, as Two Twins Tacos and Black Lines are teaming up for National Taco Day on Sunday 4th October 2026.
The two London independents will be combining their respective specialities for a limited-time collaboration, with customers able to enjoy a complimentary 100ml Spicy Tommy’s Margarita when they order three or more tacos.
And with only a limited number available, taco fans will need to get there early.
Free Spicy Tommy’s Margaritas at Two Twins Tacos!
Between 12pm and 1pm on Sunday 4th October, the first 100 customers at each Two Twins Tacos location who order three tacos or more will receive a free 100ml Spicy Tommy’s Margarita alongside their food.
That means a total of 400 free margaritas will be available across the four participating Two Twins Tacos locations.
There are no complicated conditions attached to the offer – simply order at least three tacos during the promotional hour and, if you’re among the first 100 customers at your chosen site, you’ll get the drink on the house.
The margarita is Black Lines’ signature Spicy Tommy’s, giving customers the chance to pair Two Twins Tacos’ bold, California-inspired food with one of the independent drinks brand’s best-known serves.
What Can You Get?
The offer can be paired with anything from the Two Twins Tacos menu, meaning hungry customers can build their own taco feast before washing it down with the Spicy Tommy’s Margarita.
Options include favourites such as the OG Soft Shell and Crispy Birria, bringing together the big, punchy flavours that have helped Two Twins Tacos build its following across London.
The collaboration is a natural match, with both brands having established themselves around bold flavours, independent spirit and a distinctly fun approach to food and drink.
Two Twins Tacos’ London Story!
Two Twins Tacos began life as a street food pop-up in Brixton in 2023, before making the move into a permanent home at Brixton Village Market.
Since then, the taco brand has continued expanding across the capital, with locations in Portobello Road in Notting Hill, Kilburn and Spitalfields Market.
Inspired by the beachside energy of California, Two Twins Tacos has developed a reputation for generous flavours, quick service and accessible prices, while maintaining the informal atmosphere that helped make its original pop-up such a hit.
For more information on the brand and its latest locations, visit the official Two Twins Tacos website.
Black Lines Brings the Drinks!
Black Lines has similarly carved out a name within London’s independent drinks scene.
The brand’s Spicy Tommy’s Margarita has become one of its signature serves, making National Taco Day the perfect opportunity to bring the drink together with Two Twins Tacos’ California-inspired menu.
The collaboration sees two independent London businesses with a shared focus on flavour and personality coming together for a short, sharp celebration.
When Is the Two Twins Tacos x Black Lines Collaboration?
The Two Twins Tacos x Black Lines National Taco Day collaboration takes place on Sunday 4th October 2026.
The free margarita offer runs from 12pm to 1pm, with the first 100 customers at each Two Twins Tacos location receiving a complimentary 100ml Spicy Tommy’s Margarita when they order three tacos or more.
With just 100 drinks available at each location, the offer is available on a first-come, first-served basis.
So, whether you’re already a Two Twins Tacos regular or simply looking for somewhere to celebrate National Taco Day in London, this could be a good excuse to make a taco stop this Sunday.
National Taco Day: Sunday 4th October 2026
Time: 12pm–1pm
Offer: Free 100ml Spicy Tommy’s Margarita with an order of three or more tacos
Availability: First 100 qualifying customers at each Two Twins Tacos location
Locations: Brixton Village, Portobello Road, Kilburn and Spitalfields Market
