
A filed return isn’t set in stone. If a prior return missed income, overstated or understated a deduction, used the wrong filing status, or didn’t reflect a corrected 1099 or K-1, it can be amended. Marion Tax Service prepares the federal Form 1040-X (or 1120-X for corporations) and the matching New Jersey amendment.
Just as important, we’ll tell you when amending isn’t worth it — a tiny change that costs more to file than it recovers, or one that simply isn’t necessary. The goal is the right outcome, not extra paperwork.
What’s Included
Amended-return service covers the full correction:
- Form 1040-X amended individual return preparation
- Form 1120-X / 1120-S amendment for corporations where needed
- Matching New Jersey amended return
- A clear before-and-after of what changes and why
- Refund-claim timing within the IRS statute of limitations
- Documentation to support the change if the IRS asks
- An honest call on whether amending is worth it at all
Who It’s For
Amending makes sense in specific situations:
Missed Income or Forms
Filers who received a late or corrected 1099, K-1, or W-2 after filing.
Missed Deductions or Credits
People who later realize they left a real deduction or credit on the table.
Filing-Status Fixes
Returns filed with the wrong status or a dependent issue to correct.
Business Corrections
Companies that need to fix a prior 1120-S, 1120, or 1065 figure.
Why Marion Tax Service
Amendments are judgment calls as much as paperwork — whether the change is worth filing, whether it’s still within the refund window, and whether it invites a second look. 50+ years of experience guides that call.
We handle the federal and New Jersey amendments together and document the change so it stands up if the IRS reviews it.
Related services: Individual Returns Prior-Year Returns IRS Tax Resolution.