We don't know your story. In general, the accuracy guarantee means that Turbotax guarantees accurate calculations, and will pay any penalties and interest due to a bad calculation, but you always owe your own correct income tax. If you paid more tax due to an inaccurate calculation, the guarantee doesn't technically cover you, but you can use whatever version of Turbotax you originally paid for to file an amended return without extra cost (after the program is fixed, of course). In some cases, Turbotax has refunded customer's program fees. Turbotax can't refund the extra tax you paid, you can only get that by filing an amended return with the IRS or state.
