Updated June 2026.
The IBA Margarita names tequila, Cointreau, and lime — not a reposado brand. Reposado is a CRT class: oak at least two months and less than one year. Most US bottles are 40% ABV — one NIAAA drink per 1.5 ounces of tequila in the glass. Blanco is the more common spec tequila. This is not a 10-bottle ranking.
Related: best tequila for margaritas, blanco for margaritas, reposado vs blanco.
Class first, then the pour
| Piece | Rule |
|---|---|
| IBA Margarita | 50 tequila / 20 Cointreau / 15 lime |
| Reposado | Oak 2 months to <1 year |
| Typical US ABV | 40% — one drink / 1.5 oz |
| Cointreau | 40% on the US label |
| Brand | Not named |
A 1.5-ounce 40% tequila pour is one drink even after the lime and orange liqueur go in — those add more ethanol if you count them. NIAAA binge pattern is a health line, not a target. Pour math: margarita drinks.
Sources
- IBA Margarita. NOM-006 reposado window. 27 CFR 5.148.
- Cointreau 40% US (prior). Typical tequila 40%.
- NIAAA December 2025. Casamigos current NOM 1609 not flipped.