The IRS offers free telephone assistance in both English and Spanish at 800-829-1040, for filling out standard tax forms such as the 1040. As of 2015, the service is available Monday through Friday, from 7 a.m. to 7 p.m. in all time zones.
The Live Telephone Assistance line from the IRS assists callers with basic questions about filling out tax forms and about understanding tax notices. If a caller's question cannot be answered by the Live Telephone Assistance line staff, he can get help from free, in-person tax assistance centers. These are identified by calling 800-906-9887.
Hearing-impaired individuals who need assistance with their 1040 tax forms may call the IRS using a toll-free line for the deaf. The number is 800-829-4059, and it is open on Monday through Friday, from 7 a.m. until 7 p.m. local time.