Found a mistake on a return you already filed?
NH Tax Advisors prepares amended returns (Form 1040-X) for New Hampshire taxpayers, whether it is a corrected 1099, a missed deduction, or a return another preparer got wrong.
Chris Brown, Enrolled Agent
You work with me directly, start to finish.
How we prepare amended returns and Form 1040-X
If a return you already filed came out wrong, an amended return (Form 1040-X) corrects it. We review what changed, whether a late or corrected 1099, a missed deduction, or a prior preparer’s error, rework the numbers, and file the amendment along with any matching state return. First we confirm the fix is actually worth filing.
Filing the original return is not the end of the story. If something was wrong, or something arrived late, Form 1040-X amends it. The reasons we see most are a corrected or late 1099, income that got left off, a deduction or credit you qualified for and missed, a filing-status change, or a return another preparer or software got wrong.
Chris Brown, Enrolled Agent
You work with me directly, start to finish.
Whether you searched for a CPA, an accountant, or just help to fix a tax return mistake, an amended return is representation work: it takes someone licensed to correct the record with the IRS on your behalf. NH Tax Advisors is led by Chris Brown, a federally licensed Enrolled Agent, so that is exactly what we do, in all fifty states.
Is it worth amending, or are you inviting a second look?
You filed, and then something showed up saying the return was wrong: a corrected 1099 that landed in March, a deduction you realize you missed, or an error you traced back to last year’s return. That leaves you stuck between two worries. Leave it, and a wrong number sits on your record, and if you underreported, the IRS can send its own bill later with interest added. Fix it, and you wonder whether a 1040-X waves a flag that invites a closer look. So people do nothing, and meanwhile a refund they are owed can quietly age past the point where they can still claim it. An amended return is routine. We check whether the change actually moves your tax before you spend anything, then file the 1040-X, and any matching state amendment, with the deductions and cost basis the IRS’s own version would leave out.
- Licensed to correct the record with the IRS on your behalf, in all fifty states
- A clear before-and-after, so you see exactly what changed and why
- We amend only when it genuinely moves your tax, checked before you spend anything
- Your original return on file, so the amendment is built against what was actually filed
- Corrected and late 1099s, missed deductions, and cost-basis fixes on Form 8949
- The matching state amendment filed too, so your Massachusetts and federal numbers agree
“Took time out of his busy day to answer one important question I had even though I was not a client. I appreciate everything.”
How we file your amendment
- Read the original. We review the return as filed against the new document or issue that changed things, so we know exactly what moved and why.
- Rework the numbers. We rebuild the return correctly and show you the before-and-after, so you can see what the amendment does to your refund or balance before we file it.
- File and track. We file the 1040-X, and the matching state amendment if you need one, and tell you what to expect while it processes.
The three-year window to amend and still collect
If an amendment puts a refund in your pocket, the timing matters. You generally have three years from the original due date of the return, or two years from when you paid the tax, whichever is later, to claim it. Older years can still be amended to correct what they report, but the refund itself can be lost once that window closes. Here is how the same overpayment plays out depending on how old the return is.
The same overpayment, on returns of different ages
| Tax year | What the amendment would recover | Can you still claim it? |
|---|---|---|
| 4 years ago | $1,800 overpaid | Lost, past the 3-year window |
| 3 years ago | $1,200 overpaid | Closing now, file right away |
| 2 years ago | $900 overpaid | Still yours |
| Last year | $1,500 overpaid | Still yours |
Same mistake on each return, but the four-year-old refund is already gone to the U.S. Treasury and the three-year-old one is about to follow it. The correction is identical; only the clock is different. That is why a year you think you overpaid is the one not to put off.
Let’s check your older years before any refund window closes.
If you are not sure whether a wrong return is worth amending, give us a call and we will tell you, before the refund window on it closes.
What a corrected 1099 or missed deduction gets back
Most amendments we file are not dramatic. They are a number that was wrong, corrected, so your tax matches what you actually owed. A brokerage reissues a 1099 after you have already filed, or you find a deduction you were entitled to and never claimed. Here is a common one worked through.
A corrected 1099 that arrived after filing
Say you filed in February and got a $5,600 refund. In March, your broker sends a corrected 1099 that lowers the investment income you reported by $5,000, income you had already paid tax on. Amending fixes it:
| As originally filed | After the 1040-X | |
|---|---|---|
| Investment income reported | Overstated by $5,000 | Corrected down $5,000 |
| Tax on that $5,000 | Paid | Refunded |
| Your refund | $5,600 | $5,600 plus the recovered tax |
Without the amendment, you simply overpay and never see that money again. The corrected 1099 is the paperwork; the 1040-X is what turns it back into a refund. A missed deduction or credit works the same way: adding it lowers the tax on that return, and the difference comes back to you.
Got a corrected 1099? Let’s see what it puts back.
If the problem is not one wrong return but years you never filed at all, that is back taxes and unfiled returns rather than an amendment. If you just want next year’s return done right the first time, that is our individual tax preparation. And if what set this off was a letter, start with how we read and answer IRS notices. You do not have to be in Bedford to work with us. Most of this happens by secure portal, phone, and video, the same way we work with clients in Nashua and across New Hampshire.
A few things people ask before they call:
Frequently asked questions
Will filing an amended return trigger an audit?
No, not on its own. An amended return goes through the same processing as any other return, and the IRS does not single out 1040-X filers for a closer look. What actually raises your risk is leaving a known error in place, especially income the IRS already has a copy of and can match against your return. An accurate amendment lowers your exposure; leaving a known error in place is what raises it.
How long does an amended return (Form 1040-X) take to process?
Longer than an original return. The IRS generally asks for up to 16 weeks, and in practice it often runs longer, so a refund from an amendment is not fast. Nothing is wrong when it sits in processing for months. We file it correctly, give you a copy of exactly what changed, and you can follow it on the IRS Where’s My Amended Return tool.
The IRS already sent me a notice about the mistake. Do I still need to amend?
It depends on the notice. If you got a CP2000 proposing extra tax on income you left off, you usually do not file a 1040-X at all; you respond to the notice directly, and we do that with the deductions or cost basis the CP2000 ignores, which almost always beats simply accepting their number. Other corrections do call for an amendment. Send us the letter and we will tell you which path is right before you reply.
Do I have to amend my state return too?
Often, yes. New Hampshire has no tax on wages, so there is usually nothing to amend at the state level for W-2 income. But if you also file a Massachusetts return, MA has its own amended-return process and a federal change usually flows through to it. We handle both so the numbers agree.
How far back can I amend a return?
You can amend a return for any year to correct what it reports, but collecting a refund from the change has a deadline: generally three years from the original due date, or two years from when you paid the tax, whichever is later. So an older year can still be amended to fix the record, but the money may no longer be refundable. The years where you overpaid are the ones on a clock.
What if amending means I now owe more, not less?
Then it is still usually better to file it than to sit on it. If a corrected 1099 or a found mistake means you underreported, the tax is owed either way, and filing the amendment yourself keeps interest from running longer and keeps a small penalty from growing into a bigger one. We show you the number before anything is filed, so there are no surprises.
Want the IRS’s own words on any of this? These are the pages worth knowing.
Where to learn more
- IRS: About Form 1040-XThe official Form 1040-X, its instructions, and when the IRS says an amended return is the right way to correct a filed return.
- IRS: Where’s My Amended ReturnThe IRS’s own tracker for the status of an amended return while it works its way through processing.
- IRS: Topic No. 308, Amended ReturnsThe IRS overview of who should amend, the refund time limits, and how a 1040-X is handled.
What clients say
Real reviews from real Southern NH clients
“I truly cannot say enough good things about my experience with Chris & Maria at NH Tax Advisors! I came to them with a rather daunting & messy self-employed tax situation, needing resolution for some previous years' filings.”
“We had an unexpected situation this tax season when our original accountant suddenly became ill and had to retire. My husband and I were scrambling to find someone new, especially so close to the deadline.”
“I had a great experience working with Chris Brown. He was incredibly easy to work with and always very reachable. He would respond within minutes or at most a few hours whenever I had a question.”
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