Solved
I am primary income, and my taxes would be the bulk of the return (95%+). Claiming two children as dependents. Spouse's employer waits 'til the last minute to hand out tax forms. Would be nice to get the bulk of the returns now, but not a necessity.
Wait until your spouse's W-2 arrives and file a married filing jointly return. There are many disadvantages to filing married filing separately tax returns for most married couples. You lose a lot of credits, tax rates are higher and you have to pay for two tax preparation accounts. There are no other options.
Here is an FAQ discussing MFJ vs. MFS: https://ttlc.intuit.com/questions/1894449-is-it-better-for-a-married-couple-to-file-jointly-or-separ...
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