Forms and Where to Find them

Company Set up
Articles of Corporation - Legalzoom or through your local secretary of states office.
SS4 - https://www.irs.gov/pub/irs-pdf/fss4.pdf
Form 2553 - You may need to hire someone for this (OOIDA); https://www.irs.gov/pub/irs-pdf/f2553.pdf
Getting your own authority
Form 2290 - Applicable if you or your company own a truck; https://www.i2290.com/index.aspx
BOC-3 - Applicable if you are running under your own authority; https://www.fmcsa.dot.gov/sites/fmcsa.dot.gov/files/docs/BOC-3%20Form%20508%20rev.pdf
401/401a - Another Registered Agent form; http://www.sos.state.tx.us/corp/forms/401-a-boc.pdf
Federal Forms
Form 1120 - Federal Income tax form for corporations; I recommend to have an accountant handle this; https://www.irs.gov/pub/irs-pdf/f1120.pdf
Form 941 - Applicable only to companies; https://www.irs.gov/pub/irs-pdf/f941.pdf
Form 940 - Applicable only to companies; https://www.irs.gov/pub/irs-pdf/f940.pdf
Form 1040 ES - Applicable only to contractors; https://www.irs.gov/pub/irs-pdf/f1040es.pdf
UCR -  Tax paid to the feds for running a fleet; Applicable if running your running your own authority; https://www.ucr.in.gov/ucrHome.html#
State Forms
IRP - License Plate Registration for Interstate Travel; http://www.irponline.org/
Withholdings - Applicable if your company has employees; this is a quarterly form, however if you have over a certain number of employees and owe over a certain amount in taxes each month you may need to make weekly payments; Contact your local department of Taxation for more info.
Unemployment Tax - Contact your local department of taxation
IFTA - Applicable if you are running under your own authority; Contact your States Comptrollers office
Consult with a local accountant for your state for any other forms
Franchise Tax - Applicable if you have a company; contact you local department of taxation for more info.
Highway Taxes & Permits
NYHUT permit - Annual Permit Payment (Permit application: http://www.nyhut.com/) and application, with quarterly tax payments made either online or through form Mt903 (https://www.tax.ny.gov/pdf/current_forms/motor/mt903mn_fill_in.pdf)
Kentucky Weight-Distance Tax: Free Registration with quarterly payments due, if you fail to file your taxes a $1,000 bond will be required to get back your registration; http://transportation.ky.gov/Motor-Carriers/Pages/TaxForms.aspx
New Mexico Weight-Distance Tax: Free Registration with quarterly payments due; paid online; http://www.mvd.newmexico.gov/weight-distance.aspx
Oregon Permit - Check with ODOT; Tempory permits available for 5 trips then a $3,000 bond is required to open a full account with them.
Other
California Businesses - If your business has employees living in California this is Applicable to you; https://www.ftb.ca.gov/
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