Offer your thoughts or opinion on the input financial query or topic using your financial background.

“Occupation” field on IRS Form 1040
It doesn't generally matter, and I'm not sure if it is in fact in use by the IRS other than for general statistics (like "this year 20% of MFJ returns were with one spouse being a 'homemaker'"). They may be able to try and match the occupation and the general levels and types of income, but for self-employed there's a more precise and reliable field on Schedule C and for employees they don't really need to do this since everything is reported on W2 anyway. So I don't think they even bother or give a lot of value to such a metric. So yes, I'm joining the non-authoritative "doesn't matter" crowd.