PingtailMissing tax documents checklist (US individual returns)
The forms clients forget most often, grouped by life event, with the wording that gets each one sent the first time. For US individual returns.
Clients rarely hide tax documents. They forget them. A form went to an old address, or sits unread in an online account, or "that money was not taxed".
This missing tax documents checklist groups the forms for a US individual return by life event, because that is how clients think: "I changed jobs", "we bought a house". For each one: who issues it, when, why clients forget it, and the wording that gets it sent the first time. Thresholds and dates change, so check the current rules each year.
Which tax documents do clients forget most?
- The W-2 from a short job early in the year.
- Form 1099-K from a payment app or marketplace, which is never mailed.
- The corrected brokerage 1099 that arrives later.
- Form 1099-R for a rollover that "does not count".
- Form 1095-A for Marketplace health insurance.
- The January estimated payment for the fourth quarter.
- This year's identity protection PIN.
Employment
Form W-2
Every employer that paid wages issues one by the end of January, and many put it only on the payroll website. The one that goes missing is from the job the client left in February.
Ask: "Please send the W-2 from every job you or your spouse had in [tax year], even short ones. A pay stub is not a W-2."
Self-employment and gig work
Form 1099-NEC
Businesses that paid the client for services issue it by the end of January, above a threshold you should check each year. Clients who received no form assume the income need not be reported. It must.
Ask: "Please send every 1099-NEC for [tax year]. If someone paid you and sent no form, tell us the amount anyway."
Form 1099-K
Payment apps, online marketplaces and card processors issue it, almost always as a download. The threshold keeps changing, so check the current rules. The amount is gross, before fees and refunds, so clients often do not recognise it.
Ask: "If any app or website paid you in [tax year], look in its tax documents area for a 1099-K and send it, even if the amount looks too high."
Expense records
Nobody issues these. Ask for yearly totals by category: mileage, home office, phone, supplies, software and platform fees.
Investments
Forms 1099-INT and 1099-DIV
Banks issue these by the end of January; brokerages fold them into a combined statement in mid February. Clients forget the small savings account and the bank that mails nothing. Interest is taxable even when no form arrives.
Ask: "Please check the tax documents section of every bank and investment account you had in [tax year], including closed accounts, and send each 1099-INT and 1099-DIV."
Form 1099-B (brokerage composite statement)
From each brokerage, usually in mid February. Clients send only the summary pages, or a version marked "preliminary". Digital asset sales now have their own form: check the current rules.
Ask: "Please send the full [tax year] tax statement from each brokerage account, every page. Wait for the final version, and send any corrected version."
Retirement
Form 1099-R
From pension plans, IRA custodians, 401(k) administrators and annuity companies by the end of January. A rollover feels like moving money, not income, but the form is issued anyway and the return must show it.
Ask: "If you took money out of a pension, IRA, 401(k) or annuity in [tax year], or moved money between retirement accounts, please send the 1099-R."
Form SSA-1099
Mailed in January, and available in the client's online Social Security account. Many clients believe benefits are never taxed. Part can be, depending on other income.
Ask: "If you or your spouse received Social Security benefits in [tax year], please send the SSA-1099 for each of you."
Form 5498
Reports IRA contributions and rollovers, but arrives by the end of May, after most returns are filed.
Ask: "Did you put money into an IRA for [tax year], or do you plan to before the filing deadline? Tell us the amount, the date and the type of IRA."
Home
Form 1098 (mortgage interest)
From the mortgage servicer by the end of January, often online only. After a refinance or a change of servicer there are two forms for one year, and the client sends one.
Ask: "Please send the 1098 for [tax year] for each home loan. If you refinanced or your loan moved to a new company, send both forms."
Property tax records
From the county or city. If the tax is paid through mortgage escrow, the amount often appears on the 1098. If not, ask for the bills or the payment history from the county website. The state and local tax deduction limit changes: check the current rules.
Closing statement
From the title company or closing attorney when a home is bought, sold or refinanced. Clients file it with the house papers, not the tax papers.
Ask: "Did you buy, sell or refinance a home in [tax year]? If yes, please send the full closing statement, every page."
Education
Form 1098-T (tuition)
Posted in the student's college portal by the end of January. The parent who claims the student has usually never seen it.
Ask: "If anyone in your household was in college in [tax year], ask the student to download the 1098-T from the student portal."
Form 1098-E (student loan interest)
From the loan servicer by the end of January. Below the reporting threshold nothing is sent, but the online account shows the amount paid.
Health
Form 1095-A
Posted in the marketplace account, usually by the end of January. Clients think of it as an insurance paper. If advance premium tax credit was paid, the return must reconcile it, and e-filing is normally rejected without it.
Ask: "Did anyone in your household have health insurance through HealthCare.gov or a state marketplace in [tax year], even for one month? If yes, please download the 1095-A from your marketplace account. We cannot file without it."
Other health forms
Forms 1095-B and 1095-C, from insurers and employers, are generally not needed for the federal return, though some states have their own rules. For a health savings account, ask for Form 1099-SA and the contributions.
Family and dependents
Childcare provider details
No form is mailed. The client asks each provider for a year-end statement with the provider's name, address, tax ID number and the total paid. The tax ID is the part they forget.
Ask: "If you paid for daycare, after-school care or a summer day camp in [tax year], please send a year-end statement from each provider, with their tax ID number."
Dependent details
For every new dependent: the name as on the Social Security card, the Social Security number, the date of birth and the months they lived with the client. For separated parents, ask who claims the child this year.
State refunds, unemployment and estimated payments
Form 1099-G
From the state, for unemployment benefits and state tax refunds. Many states no longer mail it.
Ask: "Did you receive unemployment benefits or a state tax refund in [tax year]? If yes, please download the 1099-G from your state's website."
Estimated payments made
No form exists. Ask for a list: date, amount, IRS or state. Ask about the January payment for the fourth quarter, and any prior-year refund applied.
Prior return, identity PIN and refund details
- Prior-year return: for a new client, the full federal and state return, every page.
- Identity protection PIN: a six digit IRS number that changes every year, by letter or in the client's IRS online account. An e-filed return is rejected without the current one. Ask every year: "Has the IRS given you, your spouse or a dependent an identity protection PIN?"
- Bank details for the refund: a voided check or a bank letter with the routing and account numbers, never typed into an email.
Printable missing tax documents checklist
- W-2 from every job, both spouses
- 1099-NEC, 1099-K, income with no form, expense totals
- 1099-INT and 1099-DIV from every account, including closed ones
- Brokerage 1099-B: full, final, plus any corrected version
- 1099-R, including rollovers, and SSA-1099
- IRA contributions made or planned (Form 5498 arrives later)
- 1098 for each home loan and each servicer
- Property tax records, and any closing statement
- 1098-T and 1098-E
- 1095-A, and 1099-SA plus contributions for an HSA
- Childcare provider statement with tax ID, new dependent details
- 1099-G for unemployment or a state refund
- Estimated payments list, including the January payment
- Prior-year return (new clients)
- This year's identity protection PIN, and refund bank details
Questions
When should I send the first tax document request?
Early to mid January, before most forms exist, so the client knows what to watch for. Then check again in late February, when brokerage statements, corrected 1099s and Schedule K-1 forms have come in. The tax season request templates have wording for each stage.
How do I find the tax documents a client forgot to mention?
Compare this year's pile with last year's return. Every employer, bank, brokerage, lender and retirement account from last year should appear again or be explained. Then ask yes or no questions about life events: new job, new home, new baby, marketplace insurance.
What if a tax form never arrives?
Have the client look in the issuer's online account first, since most issuers now post forms there instead of mailing them. If it is not there, the client contacts the issuer. As a backstop, the IRS online account has wage and income transcripts, but these fill in late and never show state withholding.
Should I accept photos of tax forms?
Yes, if every box can be read, including the small state boxes at the bottom of a W-2. A downloaded PDF is better, because it is complete and searchable, so ask for the PDF first and accept a clear photo when that is what the client has. The wrong-document article covers unusable files.
Doing this with Pingtail
Pingtail includes a Form 1040 checklist with most of the items above, each with client instructions, plus yes or no questions for life events. Every upload is checked on the page: a form for the wrong tax year gets a message asking the client to look again, and if they insist, the file comes to you with a flag. Reminders list only what is still missing. See how tax preparers use it. You can try it on yourself first: send a test request to your own email and upload the wrong file on purpose.