When entering prior year credits for contributions to private school tuition organizations on Form 323 and Certified PSTOs on Form 348, a warning message asserted they should not be larger than the current limit for single taxpayers. This was flagged again during Review but in both situations I was allowed to continue. Because the credits in violation were actually received in years when the couple were filing jointly (husband since deceased) I am proceeding with the larger values in place. Thanks for looking at this.