Backdating is dating any document by a date earlier than the one on which the document was originally drawn up.Under most circumstances, backdating is seen as fraudulent and illegal, although there are some situations in which backdating can be used in a legal and beneficial way, such as backdating a claim for a past period.If the salary increase is effective during a prior pay period, the employee is due retroactive pay.You need both the old and new salary numbers to calculate retroactive pay. Calculate the old and new salary numbers per pay period by dividing annual salary by the number of pay periods in the year.With 10 years of experience in employee benefits and payroll administration, Ferguson has written extensively on topics relating to employment and finance.A research writer as well, she has been published in The Sage Encyclopedia and Mission Bell Media.

Amendments may also be necessary if tax filings have been completed.

For example, ,000 / 52 weeks = 8.46 and ,050 / 52 weeks = 7.88.

Grace Ferguson has been writing professionally since 2009.

On March 18, 2015 Microsemi Corporation and Vitesse Semiconductor Corporation jointly announced that Microsemi would acquire Vitesse. Vitesse was founded by Al Joseph in 1984 as Vitesse Electronics Corporation.

Its founders came out of Rockwell International and were funded with Million from the Norton corporation.