[DickScarington]

This is a privacy nightmare. I do not want to share my other sources of income, mortgage deductions and other key financials with my employer.

[icedchai]

So don't. Put it all down as zero.

[darkstar999]

Under penalties of perjury, I declare that I have examined this certificate and, to the best of my knowledge and belief, it is true, correct, and complete.

[icedchai]

I won't be worrying about it. I already pay estimated taxes to account for my extra income.