I AM CLAIMING MY SON BUT I AM TRYING TO ADD HIS W-2 TO MY TAX RETURNS

NO----stop.

MY DEPENDENT HAD A JOB

If your dependent has a W-2 for his after-school job, summer job, etc. you do not include the information on your own return. You can still claim your child as a dependent on your own return.  He/she can file his own return for a refund of some of his withheld wages (he won’t get back anything for Social Security or Medicare), but MUST indicate on it that he can be claimed as a dependent on someone else’s return.  (Supervise this closely or prepare it for him!)

If your dependent’s earnings were over $400 and were reported on a 1099Misc or 1099NEC then he must file a return and pay self-employment tax for Social Security and Medicare.

You might also want to use free software from the IRS Free File versions:

https://apps.irs.gov/app/freeFile/

Your son will need to file his W2 on his own tax return. You cannot add his W2 to your return. You may claim him on your return if you support him more than 50%. On his return, you will have to mark the box that asks if someone else can claim him (you).