Is This Tax Letter Scary? NCDOR & IRS Letters Explained

Notice of Individual Income Tax Assessment (NC income tax changed or a return prepared for you)

What it means

NCDOR is proposing more NC income tax for the year shown, plus penalties and interest. The notice's Explanation section tells you why. The three common reasons NCDOR lists: your federal taxable income (shared by the IRS) doesn't match your NC return; the IRS's CP2000 matching program found income you didn't report, which also changes your NC return; or NCDOR has no NC return from you and prepared one for you from IRS information (often after an unanswered Notice to File a Return with case code IRTF or IRMF). It's the NC version of an IRS CP2000.

What to do

Compare the notice with your federal and NC returns and every W-2 and 1099. If it's right, pay it (online with Pay a Bill or Notice, by phone, or by mail with the voucher) or plan for a payment plan. If it's wrong, send the information the notice asks for, or file Form NC-242 (or a letter with the same information) to ask for Departmental Review. If the IRS changed your federal return, NC expects an amended NC return within 6 months of the IRS change.

Deadline

Act within 45 days of the notice date. After 45 days a late payment penalty can apply unless you've filed a timely request for review. Questions: 1-877-252-3252.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

NCDOR: Notice of Individual Income Tax Assessment · NCDOR: Form NC-242, Objection and Request for Departmental Review · NCDOR: Penalties and Fees Overview

We can help with this. We can help you understand the letter, gather documents, and prepare your response or payment plan. Get help (priced by quote).

Notice of Individual Income Tax Adjustment (refund reduced or changed to a balance due)

What it means

Your refund was reduced, or turned into a balance due. NCDOR either corrected your return (a math error, a credit that doesn't match its records, or another error) or took a debt out of the refund. The table in the middle of the notice shows each changed line from your return.

What to do

Compare the table with your return line by line. If the last line says Net Refund, there's nothing more to do. If it says Total Balance Due, pay it within the days printed on the notice. If NCDOR's correction is wrong, write to the address on the notice with the missing schedule, form or proof. If a debt to another agency was taken out, see the set-off card below.

Deadline

Within the number of days printed on the notice. Questions: 1-877-252-3252.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

NCDOR: Notice of Individual Income Tax Adjustment · NCDOR: Received a Notice (notice types and IDs)

We can help with this. We can help you understand the letter, gather documents, and prepare your response or payment plan. Get help (priced by quote).

Underpayment of estimated income tax (Form D-422 interest)

What it means

Your NC withholding and estimated payments were short for one or more quarters, so NCDOR charges interest. It figures it separately for each installment, so you can owe interest on an early quarter even if a later payment caught you up, and even if you got a refund. If you don't include it with your return, it can come as an assessment. It generally applies if your NC tax after credits and withholding is $1,000 or more and you didn't pay at least the smaller of 90% of this year's tax or 100% of last year's.

What to do

Compare the notice with your NC-40 payment dates (April 15, June 15, September 15 and January 15 for most calendar-year filers). Form D-422 lists the exceptions, such as having no NC tax liability the year before, or the farmer and commercial fisherman rule; ask your tax preparer whether one applies. Otherwise pay it (or include it in a payment plan) and raise next year's estimates or your NC-4 withholding.

Deadline

By the date on the notice (45 days if it comes as a Notice of Individual Income Tax Assessment). NCDOR generally can't waive interest.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

NCDOR: 2025 Form D-422 instructions · NCDOR: Estimated Income Tax · NCDOR: Interest Overview

We can help with this. We can help you understand the letter, gather documents, and prepare your response or payment plan. Get help (priced by quote).

Notice to File a Return (no record of your NC return)

What it means

NCDOR believes you had to file an NC income tax return for the year shown and didn't. Look for the case code in the upper-right grid: IRTF means you filed a federal return with an NC address but no NC return; IRMF means the IRS has no federal or state return from you for that year.

What to do

If you had to file: complete the NC return and mail it to the address on the notice with a copy of the notice, your federal return with all schedules, W-2s, support for deductions and credits, and your daytime phone number. If you believe you weren't required to file: send an explanation (and any other states' returns) to the Central Examination Section address on the notice. If you already filed: send a copy of the return and proof any tax was paid.

Deadline

Within 30 days of the notice date. If you don't respond, NCDOR can send a Notice of Individual Income Tax Assessment based on a return it prepares from IRS information. Questions: 1-877-919-1019 (project code 1120213 for IRTF, 1120215 for IRMF).

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

NCDOR: Notice to File a Return · NCDOR: Notice of Individual Income Tax Assessment

We can help with this. We can help you understand the letter, gather documents, and prepare your response or payment plan. Get help (priced by quote).

Letter asking for more information or identity verification (refund on hold)

What it means

NCDOR screens every individual return for identity theft and refund fraud, and it may contact you before it issues a refund. It also writes when a return is missing information such as a signature, W-2s or 1099s. NCDOR doesn't publish a separate notice name or ID for these letters, so go by what the letter itself asks for.

What to do

Follow the letter's instructions exactly and send what it asks for. Check Where's My Refund (you need your Social Security number and the exact refund amount on line 34 of Form D-400). If a call or visit seems off, ask for the employee's NCDOR ID badge number and call 1-877-252-3052 to confirm it.

Deadline

As soon as you can. NCDOR says phone representatives can't give more detail on these refunds until at least 60 days after you filed.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

NCDOR: The Refund Process (fraud screening, debt set-off) · NCDOR: Protecting yourself from identity theft-related tax fraud

Respond directly to NCDOR using the steps on the letter. Only NCDOR can verify your identity and release the refund.

Refund set-off for a debt / Notice of Intent to Offset (federal refund)

What it means

State refund set-off: if a state, local or county agency claims a debt of at least $50 against you, or the IRS claims a federal tax debt, NCDOR is required by law to take it from your NC refund (when the refund is at least $50). NCDOR tells you on a Notice of Individual Income Tax Adjustment, and the agency that got the money also notifies you and gives you a chance to contest the debt. Notice of Intent to Offset (sent by certified mail): NCDOR plans to take your federal refund for a past-due NC tax debt.

What to do

For a state set-off, contact the agency named on the notice if you think the debt is wrong or already paid; NCDOR's Debt Setoff Unit only knows the agency's name and the amount. For a Notice of Intent to Offset, pay the full amount on the notice (call 877-252-3252 for an updated amount after the Interest Through Date). If a joint federal refund was taken for your spouse's debt, IRS Form 8379 is how you ask for your share back.

Deadline

Notice of Intent to Offset: within 60 days of the notice date. A set-off of a refund for a debt can't be challenged with Form NC-242.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

NCDOR: Refund Offset FAQs · NCDOR: The Refund Process (fraud screening, debt set-off) · NCDOR: Debt Setoff Unit · NCDOR: Resolving Disputes About Your Taxes

We can help with this. We can help you understand the letter, gather documents, and prepare your response or payment plan. Get help (priced by quote).

Unclaimed Refund Letter (a refund check you never cashed)

What it means

NCDOR issued you a state refund check that was never cashed. The check details are in the upper right of the letter.

What to do

If you have the check, mail it to the address on the letter so it can be revalidated (NCDOR says to send it before September 1). If you don't, fill out both copies of the affidavit that came with the letter, have both notarized, and mail them in. NCDOR then stops the old check and sends a new one, which takes at least eight weeks.

Deadline

By October 1. After that, NCDOR must send the money to the NC Department of State Treasurer's NC Cash (unclaimed property) program, and you'd claim it there.

Don't ignore it

If you don't respond by October 1, the refund goes to NC Cash and you'd have to claim it from the State Treasurer instead.

Official source

NCDOR: Unclaimed Refund Letter

We can help with this. We can help you understand the letter and gather what you need to get the refund reissued. Get help (priced by quote).

Delinquent Notice (missing sales and use tax, withholding or other return)

What it means

NCDOR's records show a return wasn't filed by its due date. There are many versions, one for each tax type (sales and use tax, withholding and others); the return name and Notice ID are printed on it. Common causes NCDOR lists: NCDOR changed your filing frequency and you kept filing on the old schedule; you had seasonal workers or no sales and didn't file a zero return; or the return was simply missed.

What to do

File the missing return right away, even if no tax is due for that period. If you filed on an old frequency, you may need to amend that return and file the missing periods. If you already filed, call 1-877-252-3052 with your confirmation number. If you can't pay, file anyway: the failure-to-file and failure-to-pay penalties are separate. If the business has closed, file Form NC-BN, Request to Close Tax Account.

Deadline

Immediately. If you don't file, NCDOR will assess you based on the information it has. Late filing costs 5% of the net tax due per month (up to 25%), on top of the late payment penalty.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

NCDOR: Delinquent Notice · NCDOR: Penalties and Fees Overview

We can help with this. We can help you understand the letter, gather documents, and prepare your response or payment plan. Get help (priced by quote).

Notice of Assessment (proposed assessment, including audits and business taxes)

What it means

A proposed amount due after NCDOR corrects an error that raises your tax or changes a refund to a balance due, or after an audit adjustment. This is the general notice for business taxes too, such as a multi-period sales and use tax or withholding audit. NCDOR generally has 3 years from the return's due date (or the date you filed, if later) to assess.

What to do

If you agree, pay the full amount (online with Pay a Bill or Notice, by mail, or at a service center) or plan for a payment plan. If you disagree, call 1-877-252-3252 or write to the address on the notice, and request Departmental Review in writing with Form NC-242 (or a letter with the same information), saying why. Tax shown due on your own return but not paid can't be reviewed this way.

Deadline

Pay, or file Form NC-242, within 45 days of the date the notice was mailed (or hand delivered).

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

NCDOR: Notice of Assessment · NCDOR: Form NC-242, Objection and Request for Departmental Review · NCDOR: Resolving Disputes About Your Taxes

For a formal review, an audit or a contested case, consider an enrolled agent, CPA or attorney. If you only need help reading the notice or setting up a payment plan, we can help with that.

Proposed revocation of a Sales and Use Tax Certificate of Registration

What it means

NCDOR is proposing to revoke the business's sales and use tax certificate of registration, the registration you need to make taxable sales in North Carolina. It's one of the four NCDOR actions state law lets you challenge.

What to do

Read the reason on the notice. If you disagree, file Form NC-242 to ask for Departmental Review. Either way, bring the account current: file every missing sales and use tax return and pay or set up a plan for what's due.

Deadline

Form NC-242 is due within 45 days of the date the notice was mailed or delivered.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

NCDOR: Resolving Disputes About Your Taxes · NCDOR: Form NC-242, Objection and Request for Departmental Review

Respond directly to NCDOR, and consider an enrolled agent, CPA or attorney for the review. If you only need help catching up on missing returns or setting up a payment plan, we can help with that.

Penalties on a notice (Request to Waive Penalties, Form NC-5500)

What it means

Most NCDOR notices add penalties set by law: failure to file (5% of the net tax due per month, up to 25%); late payment (5% of the unpaid tax for taxes assessed on or after January 1, 2023, and NCDOR says the rate becomes 2% a month, up to 10%, beginning July 1, 2027); 10% negligence or 25% large-deficiency penalties on understated income; and $50 a day, up to $1,000, for a late informational return.

What to do

Read the Explanation section to see which penalty was added and why. If you had a good reason, ask NCDOR to waive it under its Penalty Waiver Policy: Form NC-5500 for most penalties, or Form NC-5501 for an informational return penalty, online or by mail. Interest is different: NCDOR generally can't waive it.

Deadline

Pay the tax itself by the date on the notice so interest stops growing. NCDOR answers a waiver request in writing by mail.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

NCDOR: Penalties and Fees Overview · NCDOR: Request to Waive Penalties (NC-5500, NC-5501) · NCDOR: Interest Overview

We can help with this. We can help you understand the letter, gather documents, and prepare your response or payment plan. Get help (priced by quote).

Notice of Collection (balance is final and collectible)

What it means

Your total liability (tax, penalties and interest) is now final and collectible. Usually an assessment came first and wasn't paid in full. NCDOR must send this notice even if you already have an Installment Payment Agreement; if the balance is part of your plan, you can disregard it.

What to do

Respond right away: pay the balance online, or request an Installment Payment Agreement (see the payment plan section below). A Notice of Collection is what makes you eligible to request one. If you already paid, check the Less Paid section and the period above the Tax column, or call 1-877-252-4967 if a payment didn't post.

Deadline

Immediately. If you don't respond, NCDOR can start forced collection, such as taking 10% of your wages, freezing bank funds, filing certificates of tax liability (liens) or seizing assets. A 20% Collection Assistance Fee is added to a debt that's 60 days past due and not on a payment plan.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

NCDOR: Notice of Collection · NCDOR: Collection Assistance Fee FAQs

We can help with this. We can help you understand the letter, gather documents, and prepare your response or payment plan. Get help (priced by quote).

Notice of Collection - Amount Shown Due But Not Paid In Full (tax from your own return)

What it means

You filed a return showing tax due but didn't pay all of it, so the rest is final and collectible, along with penalties for late payment or late filing and interest (including underpayment of estimated tax interest).

What to do

Pay the balance or request an Installment Payment Agreement right away. If you can't pay in full, call 1-877-252-3252 or visit a service center to discuss options. Because the amount came from your own return, it can't be challenged with Form NC-242.

Deadline

Immediately. The same forced collection actions and 20% Collection Assistance Fee apply.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

NCDOR: Notice of Collection - Amount Shown Due But Not Paid In Full · NCDOR: Resolving Disputes About Your Taxes · NCDOR: Collection Assistance Fee FAQs

We can help with this. We can help you understand the letter, gather documents, and prepare your response or payment plan. Get help (priced by quote).

Payment plan letters: Confirmation of Installment Payment Agreement, Payment Agreement Installment Notice, Authorization for Bank Draft

What it means

Confirmation of Installment Payment Agreement means your plan was accepted; no reply is needed. The Payment Agreement Installment Notice is a reminder that the next payment is due soon (the due date is under the notice number). The Authorization for Bank Draft Installment Agreement covers the bank drafts for the plan.

What to do

Start paying by the first installment date, and pay at least 15 days before each due date so it processes in time. Keep filing and paying every new return and estimated payment while the plan runs. Interest keeps adding up on the unpaid balance.

Deadline

By each due date on the notice. If a payment is missed or returned, pay online within 10 days (a returned payment also needs a 10% returned check penalty) to avoid default.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

NCDOR: Confirmation of Installment Payment Agreement · NCDOR: Payment Agreement Installment Notice · NCDOR: Installment Payment Agreements · NCDOR: Received a Notice (notice types and IDs)

We can help with this. We can help you understand the letter, gather documents, and prepare your response or payment plan. Get help (priced by quote).

Default Notice (payment plan in default)

What it means

NCDOR has put your Installment Payment Agreement in default, usually for a missed, late or returned payment, a new return that wasn't paid in full, or a return that wasn't filed.

What to do

Missed or returned payment: make it within 30 days of the notice date and the plan restarts automatically. Filed but didn't pay: pay that amount in full within 30 days, then call the number on the notice. Didn't file: file and pay in full within 30 days, then call. Already paid: call 1-877-252-3252 with your payment confirmation.

Deadline

Within 30 days of the notice date. If you don't act, NCDOR can start forced collection and add the 20% Collection Assistance Fee, and you usually can't restart the plan.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

NCDOR: Default Notice · NCDOR: Installment Payment Agreements

We can help with this. We can help you understand the letter, gather documents, and prepare your response or payment plan. Get help (priced by quote).

Attachment and Garnishment (wages or bank account) / Garnishment Release Letter

What it means

Forced collection has started. An attachment and garnishment orders your employer, bank or another party to send NCDOR money from your wages or accounts (a bank garnishment freezes the funds). It follows an unpaid Notice of Collection. A Garnishment Release Letter goes to your employer once the debt is paid in full.

What to do

Pay the full balance, using a different account if your bank account is the one garnished; or ask for an Installment Payment Agreement. NCDOR may release a wage garnishment for a plan if you haven't defaulted on a plan for the same periods and you meet the plan rules. Leaving the garnishment in place is also an option if you can do neither.

Deadline

Immediately. Interest keeps adding up until the balance is paid.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

NCDOR: Attachment and Garnishment - Taxpayer Copy · NCDOR: Attachments and Garnishments for Taxpayers · NCDOR: Installment Payment Agreements

Respond directly to NCDOR now. If collection has already started, consider an enrolled agent, CPA or attorney. If you only need help setting up a payment plan, we can help with that.

Notice of Final Determination (after Departmental Review)

What it means

You filed Form NC-242 and you and NCDOR didn't agree. This notice explains why NCDOR is keeping its decision, shows the tax, penalties and interest due, lists the collection options NCDOR can use, and explains how to contest it.

What to do

Decide whether to pay (or set up a payment plan) or contest it by filing a petition for a contested tax case with the NC Office of Administrative Hearings (OAH), with a copy served on NCDOR's process agent. You generally don't have to pay before the OAH hearing.

Deadline

A contested case petition is due within 60 days after NCDOR mails or hand delivers the notice.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

NCDOR: Resolving Disputes About Your Taxes

This is the formal end of NCDOR's review. To contest it, work with an enrolled agent, CPA or attorney. We can still help you understand the numbers or set up a payment plan.

CP2000 (proposed changes: income doesn't match)

What it means

Income or payment information the IRS got from employers, banks or others (W-2s, 1099s) doesn't match your return. The notice proposes changes that may raise, lower or not change your tax. It isn't a bill.

What to do

Read the whole notice. Fill out and sign the response form, saying whether you agree or disagree, and include supporting documents. You can reply by the IRS document upload tool, fax or mail. If you agree and have nothing else to report, you don't need to amend.

Deadline

Reply by the date on the notice. If you don't, the IRS may send a bill.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

IRS: Understanding your CP2000 series notice

We can help with this. We can help you understand the letter, gather documents, and prepare your response or payment plan. Get help (priced by quote).

CP14, CP501 and CP503 (balance due reminders)

What it means

CP14 is the first notice that there's an unpaid balance. CP501 is a reminder, and CP503 is the second reminder that the balance is still unpaid.

What to do

Check the amount. Pay by the due date, or apply for a payment plan (online payment agreement or Form 9465). If you disagree, call the number on the notice with your records ready.

Deadline

By the due date on the notice. After that, penalties and interest grow, and the next step is a CP504.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

IRS: Understanding your CP14 notice · IRS: Understanding your CP501 notice · IRS: Understanding your CP503 notice · IRS: Payment plans

We can help with this. We can help you understand the letter, gather documents, and prepare your response or payment plan. Get help (priced by quote).

CP504 (Notice of Intent to Levy)

What it means

The final reminder before the IRS can levy (take) wages, bank accounts or your state tax refund for an unpaid balance. The IRS may also file a federal tax lien.

What to do

Act right away: pay, or set up a payment plan. If you disagree, call the number on the notice. You can ask for a Collection Appeals Program (CAP) appeal before collection action.

Deadline

Immediately.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

IRS: Understanding your CP504 notice

Respond directly to the IRS now. For a levy, or if collection has already started, consider an enrolled agent, CPA or attorney.

CP11 and CP12 (math error changes)

What it means

The IRS corrected one or more mistakes on your return. CP11: the change means you have a balance due. CP12: the change affects your refund (bigger, smaller, or a refund instead of a balance).

What to do

Compare the "what we changed" section with your return. If you agree, pay (CP11) or wait for the refund (CP12), and fix your own copy of the return. If you disagree, contact the IRS at the number on the notice.

Deadline

By the date on the notice.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

IRS: Understanding your CP11 notice · IRS: Understanding your CP12 notice

We can help with this. We can help you understand the letter, gather documents, and prepare your response or payment plan. Get help (priced by quote).

CP59 (no record of your prior-year return)

What it means

The IRS has no record that you filed a prior-year personal return.

What to do

File the return right away, or explain why you didn't have to file. If you believe the IRS made a mistake, it lists Form 15103 for that.

Deadline

As soon as possible. Waiting can mean losing a refund or credits, and more penalties and interest if tax is due.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

IRS: Understanding your CP59 notice

We can help with this. We can help you understand the letter, gather documents, and prepare the missing return or your response. Get help (priced by quote).

CP05 (return under review)

What it means

The IRS needs more time to verify income, withholding, credits or business income on your return. It doesn't mean you made a mistake.

What to do

If you filed the return, no action is needed. If you didn't file it, someone may have used your information: complete Form 14039, Identity Theft Affidavit.

Deadline

Allow up to 60 days before contacting the IRS.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

IRS: Understanding your CP05 notice

CP75 (audit of the Earned Income Credit)

What it means

The IRS is auditing your return and needs documents to verify the Earned Income Credit (and possibly related credits). It's holding those parts of your refund.

What to do

Send copies of the requested documents with the response form, by upload, fax or mail, all at once.

Deadline

By the date on the notice.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

IRS: Understanding your CP75 notice

This is an audit. Respond directly to the IRS, or consider an enrolled agent, CPA or attorney.

Letter 5071C, Letter 4883C and CP01H (identity and account locks)

What it means

5071C (part of the CP5071 series) and 4883C: a return was filed under your SSN or ITIN, and the IRS needs you to confirm your identity and the return before processing it. CP01H: the IRS locked your account because an SSN on the return matches someone who died before that tax year.

What to do

5071C: follow the letter; if it offers online verification, start at irs.gov/verifyreturn. 4883C: call the Taxpayer Protection Program number in the letter with the letter, the return and a prior-year return. CP01H: check the SSN, then contact the Social Security Administration to correct its records. If you didn't file a return, say so; you may be a victim of identity theft.

Deadline

Right away. The return isn't processed until you verify.

Don't ignore it

Unanswered letters usually lead to more interest and penalties and a stronger next notice.

Official source

IRS: Understanding your CP5071 series notice (5071C) · IRS: Understanding your letter 4883C · IRS: Understanding your CP01H notice

Respond directly to the IRS (or the SSA for CP01H) using the instructions in the letter. Only you can verify your identity.