Com Lag received mixed reviews. The NME critic Anthony Thornton wrote: "Never content with relaxing into an accepted way of doing things, this record, while being flawed – it is a B-sides compilation after all – confirms Radiohead as the true inheritors of the Beatles' legacy rather than Oasis." Adam Downer of Sputnikmusic wrote: "While Com Lag does have its flaws, it's not a bad set of B-sides. Some of it is actually fantastic."
