You can reenter each previous transaction by using NannyPay's automatic calculation features.  Just set the appropriate federal, state and payment settings, and calculate the withholding by entering the appropriate pay period for each transaction.  The drawback to this approach is that it may not accurately reflect the exact amounts actually paid to your household employee, particularly if you have been previously using the federal or state manual withholding tables.  NannyPay calculates withholding based upon the percentage method, which is more accurate than using withholding tables.  Therefore, NannyPay's automatic calculations may not exactly match your previous manual calculations.  For tax payment purposes, this discrepancy is not important, however, your new records will not accurately reflect amounts actually withheld.

You can manually reenter each previous transaction, using NannyPay's  manual update utility found in the "Edit" menu.  While this method is the most accurate updating approach, it is tedious.  You must gather your previous records, and enter the amounts of tax withheld for each withholding category (e.g., Social Security, Medicare, state and federal income tax, etc.) for each pay period.  This method will insure that your weekly, year-to-date, and quarterly records will be accurate.

You can manually reenter previous transactions, again using NannyPay's  manual update utility, but limiting the entries to quarterly totals for each withholding category.  Using this approach, you must total all previous withholding by category and by quarter and manually enter the totals according to the appropriate quarterly date: March 31st, June 30th, September 30th, or December 31st.  Using this method, you maintain the accuracy of the quarterly totals.  You can vary this approach by only entering gross and net pay, if the details are not important to you.

You may manually enter only the total gross and net salary paid to your household employee from the first of the year to the time you began using NannyPay.  You can date this transaction using the current date. This may be the simplest approach, however, you must keep in mind that your year-to-date and quarterly totals will not accurately reflect the amounts paid to your household employee or previous withholding.