You can have Vehicle identification numbers of up to 17 characters with numbers and alphabets mixed, mistakes happen. For example, You type 5 instead of S. To err is human. http://www.expresstrucktax.com/Form2290/efile2290

1. IRS Form 2290 Amendments
Mistakes can happen. When you have vehicle identification numbers of up to 17
characters with numbers and alphabets mixed, mistakes will happen. For example,
you type 5 instead of S. To err is human. You file form 2290 and pay $550 to IRS
and get your IRS stamped Schedule 1. You take it to the DMV or the Carrier, and
then you realize that the Schedule 1 has the wrong VIN. What do you do?
We've got information on tax forms, answers to tax questions, and the low down on
e-filing. Stop by often for updates and tips from the IRS and deals.
You have E-Filed Form 2290 with ExpressTruckTax.com, paid your Heavy Vehicle
Use Tax and received your Schedule 1. For most truckers, that takes care of the
HVUT filing until next year, unless you need to make an amendment.
The most common reason for Amendments are:
 VIN correction (FOR FREE)
 Mileage limit is exceeded
 Taxable Gross Weight Increases
VIN correction:
VIN Correction is filed if you have made a mistake in any of the VIN in the
previously E-file IRS form 2290.
VIN Corrections can be only done for Taxable or suspended vehicles and not
for credit vehicles or for prior year suspended vehicles. When you file a VIN
Correction Form 2290, you can’t combine it with claiming credits on the same form.
The wrong VIN must have been paid for in the original form 2290. Otherwise,
the IRS will assign penalties in addition to the actual tax.
Taxable Gross Weight Increases:
Taxable gross weight of a vehicle increases during the period and the vehicle falls in
a new higher category. For instance, an increase in maximum load customarily
carried may change the taxable gross weight.
When this happens, you need to calculate and report the additional tax for the
remainder of the period on 2290 Taxes, also you need to check the Amended
Return box and to the right of “Amended Return” write the month the taxable gross
weight increased. This should be by the last day of the month following the month
in which the taxable gross weight increased.

2. With ExpressTruckTax.com, we make it easy to file this increase in taxable gross
weight and accurately calculate the difference in tax due to IRS. You will also get
your Schedule 1 for the new weight category in minutes.
Mileage limit is exceeded:
Mileage use limit for a heavy vehicle on public highways is 5,000 miles or less
(7,500 miles or less for agricultural vehicles). The mileage use limit applies to the
total mileage a vehicle is on the road during a period, regardless of the number of
owners.
You to need to calculate the tax on Form 2290, page 2, based on the month the
vehicle was first used in the period. File the amended Form 2290 and Schedule 1 by
the last day of the month following the month in which the mileage use limit was
exceeded.
With ExpressTruckTax.com, we make it easy to file this amendment
and accurately calculate the tax due to IRS. You will also get your Schedule 1 for
the weight category in minutes.