IRS Form 1098: How It Works, Why It Matters, and What To Do If It’s Wrong or Missing

IRS Form 1098 is a tax form your mortgage lender or loan servicer sends you each year showing how much mortgage interest (and some related costs) you paid, usually to help you claim the mortgage interest deduction. It is an information return sent both to you and to the Internal Revenue Service (IRS), so the numbers the IRS sees should match what you put on your tax return.

What IRS Form 1098 Actually Does for You

Form 1098, “Mortgage Interest Statement,” reports certain payments tied to a home loan that may be deductible if you itemize deductions on Schedule A of your federal tax return.

Most taxpayers who receive a 1098 get it because they paid at least $600 in mortgage interest in a calendar year to a lender or loan servicer.

Typical information shown on Form 1098 includes:

• Total mortgage interest you paid for the year
• Some points paid at closing that may be deductible
• Certain mortgage insurance premiums (for older loans/years where allowed)
• Your property’s address and the loan’s basic details

You do not file a separate “application” for Form 1098; instead, your lender is required to send it to you and to the IRS. You then use the information on it when you prepare your tax return.

Key terms to know:

• Mortgage interest — The interest portion of your monthly payment on a loan secured by your home (not the principal balance you’re paying down).
• Loan servicer — The company that sends your mortgage bills, processes your payments, and handles escrow, which may be different from the original lender.
• Points — Upfront fees paid to reduce your mortgage interest rate; sometimes deductible as interest.
• Itemized deductions — A list of specific expenses (like mortgage interest, state taxes, and charity) you choose instead of the standard deduction.

Where Form 1098 Comes From and How to Get It Officially

The two main official system touchpoints for Form 1098 are:

1. Your mortgage lender or loan servicer – This is the company required to prepare and send Form 1098 to you and the IRS.
2. The IRS and its official taxpayer help channels – The IRS uses your 1098 data to match against your return and offers Taxpayer Assistance Centers (TACs) and the main IRS help line for questions about reporting the information.

If you had a mortgage or home equity loan secured by your main home or a second home, your lender typically must:

• Send you a Form 1098 by January 31 (for the previous tax year).
• Make the form available in your online mortgage account portal (if they offer one).

Concrete action you can take today:
Log in to your mortgage servicer’s online portal or call their customer service line and ask if your latest Form 1098 is available.

A simple script you can use on the phone:
“I’m calling about my annual tax form. I need a copy of my most recent Form 1098 mortgage interest statement. Can you tell me how I can access it or have it mailed to me?”

After you request it, most servicers will either:

• Tell you where to download a PDF copy within your online account, or
• Confirm they will mail a duplicate to the address they have on file, often within 7–10 business days (timing varies).

If you cannot get a response or access from your lender after you’ve tried, you can contact the IRS through its general help line or schedule an appointment at a Taxpayer Assistance Center to ask how to accurately report your interest without the form; they may suggest using your year-end mortgage statement and payment records.

Documents You’ll Typically Need and How to Read the Form

You don’t “apply” for Form 1098, but you do need supporting documents when you use it on your tax return or if you need to reconstruct the information.

Documents you’ll typically need:

• Official Form 1098 from your lender or servicer for each property and each loan you paid interest on.
• Year-end mortgage statement(s) showing total payments and a breakdown of interest and principal.
• Closing Disclosure or settlement statement from when you bought or refinanced the home, to identify points paid and the initial loan details.

When you have your Form 1098 in hand, focus on these common boxes:

• Box 1 – Mortgage interest received from payer/borrower: This is usually the number you consider for your potential mortgage interest deduction.
• Box 2 – Outstanding mortgage principal: Balance as of the start of the year.
• Box 3 – Mortgage origination date: Useful to check if an interest limitation or new-law rule applies.
• Box 5 – Mortgage insurance premiums: May or may not be deductible depending on tax law changes for that year.
• Box 6 – Points paid on purchase of principal residence: Sometimes deductible in the year paid; other times spread out.

Once you understand these numbers, you (or your tax preparer or software) decide whether to itemize deductions or take the standard deduction, based on which gives you the lower tax.

Remember that exact rules on what’s deductible, and any income or loan limits, can change from year to year and sometimes vary with your personal situation.

Step-by-Step: What to Do If Your Form 1098 Is Missing or Wrong

Use this sequence if you think you should have a Form 1098, or you received one that doesn’t look right.

1. Confirm you should receive a Form 1098
   Check if your loan is a mortgage or home equity loan secured by your home and whether you paid at least $600 in interest during the tax year; your year-end statement from the servicer will show this total.

2. Check all possible delivery methods
   Before assuming it’s missing, log in to your mortgage servicer’s portal, check the “Statements” or “Tax Documents” area, and also check mail around late January to mid-February; some servicers mark envelopes simply as “Tax Document” or “Year-End Statement.”

3. Contact your lender or loan servicer directly
   Call the number on your mortgage statement and request Form 1098 for [tax year], or send a secure message through the portal; ask if it has been issued and to what address or email.

   • What to expect next: They typically confirm whether it was generated, tell you how to download it, or schedule a replacement mailing; some may charge a small fee for additional paper copies, but most allow at least one free.

4. Compare Form 1098 with your own records
   Once you have the form, compare Box 1 (interest) with the interest total on your year-end mortgage statement and monthly statements; small differences can happen due to timing, but large mismatches should be questioned.

5. Dispute errors with the lender in writing if needed
   If you believe your 1098 is wrong, send a written dispute or “qualified written request” to the servicer’s designated address (usually listed on the back of your mortgage statement), specifically listing what figures you think are incorrect and including copies of your statements.

   • What to expect next: Servicers commonly have a set period (for example, around 30–45 days) to review and respond; they may issue a corrected Form 1098 and the IRS will receive that updated version as well.

6. Report your actual interest on your tax return
   When you file your tax return, enter the mortgage interest based on your Form 1098, unless a tax professional advises otherwise; if you use different numbers than the IRS sees, you may later get a notice asking you to explain or correct the return.

7. If you still have issues, contact the IRS or seek tax help
   If the lender won’t correct an obvious error, or you never received a 1098 but have good records of interest paid, consult a tax professional or call the IRS taxpayer help line to ask how to report the interest; you may be told to use your payment records and keep documentation in case of a later inquiry.

Real-World Friction to Watch For

Real-world friction to watch for

A frequent snag is that homeowners refinance or change servicers mid-year, resulting in multiple Form 1098s (one from the original servicer, one from the new servicer) and sometimes one from a prior lender if a second loan was paid off. If you only enter one form into your return, your total reported interest will be too low, and the IRS’s records will not match, so always check whether you had more than one mortgage company or loan number during the year and gather every 1098 tied to your property.

Getting Legitimate Help and Avoiding Scams

When dealing with anything that affects your taxes or mortgage, stay with official channels and reputable helpers.

Legitimate help options commonly include:

• IRS Taxpayer Assistance Centers (TACs): In-person offices where IRS staff can answer general questions about reporting Form 1098 amounts, not about changing the form itself; you usually need an appointment.
• IRS phone assistance line: Can explain where to enter the numbers from Form 1098 on your return and what paperwork to keep.
• Volunteer Income Tax Assistance (VITA) / Tax Counseling for the Elderly (TCE) sites: Free tax prep for eligible taxpayers, where volunteers are trained on how to use Forms 1098, 1098-T, etc., in software.
• Licensed tax professionals: Enrolled agents, CPAs, or tax attorneys for complex cases (such as multiple properties, rental use, or disputes with a lender).

To avoid fraud:

• Do not share your full Social Security number, mortgage account number, or tax documents with anyone who contacts you out of the blue claiming to be from the IRS or a lender.
• Look for “.gov” at the end of websites for IRS and government resources, and call phone numbers listed on official government or lender statements, not in unsolicited emails or texts.
• Be cautious of anyone promising to “increase your refund” by inflating mortgage interest or fabricating a 1098; you are responsible for what you report, and false information can trigger penalties.

Because rules about what’s deductible and how much you can claim change over time and can vary depending on your situation, use Form 1098 as a starting point and, when in doubt, confirm with a trusted tax resource before filing. Once you’ve gathered your Form 1098s, verified the amounts against your own records, and reached out to your servicer or the IRS for any unresolved issues, you’re ready to move on to preparing and filing your tax return through your chosen official or professional channel.