Writing off Home Office Expenses as a Work From Home W2 and 1099 Worker

[batesburgers]

In 2023 I will be working 2 jobs, 1 will be a full-time salary position(W2), and the other will be an independent contractor position(1099), but both allow me to work from home. Since I'm a 1099 worker I know I have the ability to write off home office expenses, but that job is only a couple hours a week (2-3 hours ). I want to upgrade my home office this year, and that will increase productivity for both my jobs. So here are the questions I have.

Am I allowed to make purchases for my 1099 job with income from my W2 job?
If yes, am I able to deduct those purchases from my 1099 job?

If yes, what will happen if my deductions are over the net income of my 1099 job?

[DoninGA]

You will not be able to claim a home office expense since it is not being used exclusively for your trade or business.

IRS Publication 587 - https://www.irs.gov/pub/irs-pdf/p587.pdf

To qualify under the exclusive use test, you must use a specific area of your home only for your trade or business.
The area used for business can be a room or other separately identifiable space. The space does not need to be marked off by a permanent partition.
You do not meet the requirements of the exclusive use test if you use the area in question both for business and for personal purposes.

Self-employment expenses can be paid from funds other than from self-employment income.

If your self-employment expenses are greater than your self-employment income then you will have a Net loss when reporting your self-employment on Schedule C.  The loss is reported on your personal tax return, Schedule 1 Line 3 and flows to Form 1040 Line 8.  The loss will reduce your Adjusted Gross Income.