Where in the 1040 Form should I attach the letter and other information that substantiates our deductions?

[cjapark]

This is about form 8283 Page 2 Part I where we are deducting over $5,000.

[MichaelL1 · Accepted solution]

The letter and other information would be attached behind the From 8283. 

Assemble Your Return

Assemble any schedules and forms behind Form 1040 in order of the “Attachment Sequence No.” shown in the upper right corner of the schedule or form. If you have supporting statements, arrange them in the same order as the schedules or forms they support and attach them last. Do not attach correspondence or other items unless required to do so. Attach Forms W-2 and 2439 to the front of Form 1040. If you received a Form W-2c (a corrected Form W-2), attach your original Forms W-2 and any Forms W-2c. Attach Forms W-2G and 1099-R to the front of Form 1040 if tax was withheld.