Hi @Stonedust, it means that based upon the instructions as of today's date from the IRS the program is updated and you can ignore to efile based upon those calculations.  At no point can we ever guarantee the IRS makes no changes or adjustments to calculations or tax law, so no I can't say in that language that you can "e-file without the chance of the calculations changing, requiring an amendment."  That would be something we are never able to say at any given time.  If you have further questions, please contact ProConnect Support.