The Kansas Department of Revenue says it has yet to process from 70,000 to 80,000 state income tax returns after bringing in workers from another agency last week to help open envelopes.

Department of Revenue spokeswoman Jeannine Koranda said Monday that the processing of the remaining returns should be completed by the end of the week.

Employees of the Department for Children and Families helped with the processing last week.

Koranda said it’s not rare for the processing of returns to last into May.

But legislative researchers said Monday in a report on state revenues that the processing of returns is at least a week behind last year’s pace. The report said the department had fewer temporary workers available this year.