We study the effects of services trade reforms in a multi-country multi-sector quantitative trade model with input-output linkages. We find that (i) welfare gains from substantial services trade liberalization are large, around 3 percent on average; (ii) gains are larger by 0.7 percentage points in a hypothetical scenario where EMDEs’ consumption patterns have converged to AEs, and by 5.7 percentage points when their production networks have converged; (iii) both EMDEs and AEs gain from EMDEs reducing services barriers to the level of AEs. Services-intensive AEs with strong supply linkages to EMDEs benefit the most. Our results are important to illustrate the increasing gains from services trade as EMDEs continue on their development trajectory, and therefore call for injecting further ambition into multilateral negotiations on services trade reforms.