Retro calculation of tax amount in indin payroll

Dear Sir,

System is broght forwarded the tax amount for previous months which we have deducted while doing the retro active payroll.

client is uploading investments 0581,0582,0585,0586 in these info types and system is triggering for retro calculation.

Scenario:- we have run the payroll for Apr,May and in month of June i have updated the investment details in tax infotypes and system is doing the retro calculation and brought forwarded the tax amount /460 which we have already deducted in APR,MAY to current month with "-" symbol in /552 in June month result table.

Request you to suggest us on this.