How to Amend Form 2290 for a Weight Increase

If a vehicle moves into a heavier taxable gross weight category during the tax period, the tax owed changes, and you file an amended Form 2290 to report it and pay the difference.

Steps to amend for a weight increase

1. Sign in to Consulics and open the accepted return for the vehicle.
2. Start a taxable gross weight increase amendment and select the new, higher category.
3. The additional tax is calculated for the remaining months of the period; choose how to pay.
4. Transmit the amendment and download the updated stamped Schedule 1.

When this applies

This is for an increase in the taxable gross weight category, which raises the tax — not for a simple typo, which is a different correction. File the amendment in the month the weight increases so your records and Schedule 1 stay accurate.