Revenue numbers for July through September, the first three months of fiscal year 2015, suggest Kansas’ revenue gap is permanent, not temporary. The state anticipated $578 million in personal income tax collections over the summer, but it took in just $524 million, a miss of more than 10 percent. That was nationally atypical; according to the Rockefeller Institute of Government, 14 states have published projected and actual monthly personal income tax receipts through September, and the other 13 all came within 5 percent of expectations. Kansas’ wide miss was probably a result of wading into uncharted territory with its tax reforms. In addition to cutting income tax rates, Kansas made itself the only state with a general personal-income tax that exempts “pass-through income” from tax.