TaxesI need help with form 83-79 for 2018

[DoninGA]

A form 8379, Injured Spouse Allocation can be sent separate from a tax return if you already filed your federal tax return as Married Filing Jointly.

IRS Form 8379 - https://www.irs.gov/pub/irs-pdf/f8379.pdf

IRS Form 8379 instructions - https://www.irs.gov/pub/irs-pdf/i8379.pdf