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The IRS 1040 form is a crucial document for individual taxpayers in the United States, serving as the primary means to report annual income and calculate tax obligations. This form allows taxpayers to detail various sources of income, including wages, dividends, and capital gains. Additionally, it provides sections for claiming deductions and credits that can significantly reduce taxable income. The 1040 form is versatile, accommodating different filing statuses, such as single, married filing jointly, and head of household. Taxpayers can also choose to itemize deductions or take the standard deduction, depending on which option benefits them more. Furthermore, the form includes schedules for reporting additional income or adjustments, making it adaptable to various financial situations. Understanding the 1040 form is essential for ensuring compliance with tax laws and maximizing potential refunds.

Steps to Using IRS 1040

Completing the IRS 1040 form is an essential step in filing your federal income tax return. This process requires careful attention to detail and accurate reporting of your financial information. Follow these steps to ensure you fill out the form correctly.

  1. Gather all necessary documents, including W-2s, 1099s, and any other income statements.
  2. Obtain the IRS 1040 form from the IRS website or a local office.
  3. Begin with your personal information. Fill in your name, address, and Social Security number at the top of the form.
  4. Indicate your filing status by checking the appropriate box (e.g., single, married filing jointly, etc.).
  5. Report your income in the designated section. Include wages, salaries, and any additional income sources.
  6. Calculate your adjusted gross income (AGI) by subtracting any applicable deductions.
  7. Fill out the section for standard or itemized deductions. Choose the option that benefits you most.
  8. Determine your taxable income by subtracting deductions from your AGI.
  9. Use the tax tables provided by the IRS to calculate your tax liability based on your taxable income.
  10. Account for any tax credits you qualify for, reducing your overall tax liability.
  11. Report any payments you have made, such as withholding and estimated tax payments.
  12. Calculate whether you owe additional taxes or are entitled to a refund.
  13. Sign and date the form. If filing jointly, your spouse must also sign.
  14. Submit the completed form to the IRS by mail or electronically, depending on your preference.

Key takeaways

  • Ensure that you have all necessary documents before starting to fill out the IRS 1040 form. This includes W-2s, 1099s, and any other income statements.

  • Double-check your personal information, including your Social Security number and filing status. Mistakes in this section can lead to delays in processing your return.

  • Take advantage of available deductions and credits. Research which ones you qualify for, as they can significantly reduce your tax liability.

  • Keep a copy of your completed IRS 1040 form and any supporting documents for your records. This can be helpful for future reference or in case of an audit.

Misconceptions

The IRS 1040 form is a crucial document for filing individual income taxes in the United States. However, several misconceptions surround this form. Understanding these misconceptions can help taxpayers navigate the tax filing process more effectively. Here are eight common misunderstandings about the IRS 1040 form:

  • Everyone Must Use the 1040 Form: Not all taxpayers need to use the 1040 form. Some individuals may qualify to use simpler forms, such as the 1040-EZ or 1040-A, depending on their income level and filing status.
  • Filing a 1040 Automatically Means You Will Owe Taxes: Many believe that completing the 1040 form means they will owe money to the IRS. In reality, the form is used to report income and calculate taxes owed or refunds due. Some may end up receiving a refund.
  • All Income is Taxable: Some taxpayers think that all income reported on the 1040 form is taxable. However, certain types of income, like gifts or inheritances, may not be subject to income tax.
  • You Can Only Claim Deductions: There’s a misconception that the 1040 form only allows for deductions. In fact, taxpayers can also claim credits, which directly reduce the amount of tax owed.
  • Filing Late Automatically Means Penalties: While filing late can lead to penalties, there are circumstances where taxpayers can avoid them, such as if they request an extension before the original due date.
  • Once Filed, You Can’t Change Your Return: Some individuals believe that once they submit their 1040 form, it cannot be altered. However, taxpayers can amend their returns using Form 1040-X if they discover errors or omissions.
  • Using Tax Software is Always Accurate: Many think that using tax software guarantees accuracy. While these programs can be helpful, they rely on the user providing correct information. Errors in input can lead to incorrect filings.
  • The IRS Audits Everyone Who Files a 1040: There’s a widespread belief that filing a 1040 will trigger an audit. In reality, audits are relatively rare and are typically based on specific criteria rather than the mere act of filing the form.

By debunking these misconceptions, taxpayers can approach their tax responsibilities with greater confidence and clarity. Understanding the 1040 form is an essential step in ensuring compliance and maximizing potential refunds.

Preview - IRS 1040 Form

Form

1040

Department of the Treasury—Internal Revenue Service

(99)

U.S. Individual Income Tax Return

2021

OMB No. 1545-0074

IRS Use Only—Do not write or staple in this space.

Filing Status

Check only one box.

 

Single

 

Married filing jointly

 

Married filing separately (MFS)

 

Head of household (HOH)

 

Qualifying widow(er) (QW)

 

 

 

 

 

If you checked the MFS box, enter the name of your spouse. If you checked the HOH or QW box, enter the child’s name if the qualifying person is a child but not your dependent

 

Your first name and middle initial

 

 

 

 

Last name

 

 

 

 

 

 

 

 

 

 

 

 

 

Your social security number

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

If joint return, spouse’s first name and middle initial

Last name

 

 

 

 

 

 

 

 

 

 

 

 

 

Spouse’s social security number

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Home address (number and street). If you have a P.O. box, see instructions.

 

 

 

 

 

 

 

 

 

Apt. no.

Presidential Election Campaign

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check here if you, or your

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

spouse if filing jointly, want $3

 

City, town, or post office. If you have a foreign address, also complete spaces below.

 

State

 

 

 

 

ZIP code

 

 

 

 

 

 

to go to this fund. Checking a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

box below will not change

 

Foreign country name

 

 

 

 

 

 

 

 

 

 

Foreign province/state/county

 

 

 

 

Foreign postal code

your tax or refund.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

You

 

 

Spouse

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

At any time during 2021, did you receive, sell, exchange, or otherwise dispose of any financial interest in any virtual currency?

 

 

 

 

 

 

Yes

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Standard

 

Someone can claim:

 

 

 

You as a dependent

 

 

Your spouse as a dependent

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Deduction

 

 

 

 

 

Spouse itemizes on a separate return or you were a dual-status alien

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Age/Blindness You:

 

 

Were born before January 2, 1957

 

 

Are blind

Spouse:

 

 

Was born before January 2, 1957

 

 

 

 

Is blind

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dependents (see instructions):

 

 

 

 

 

 

 

 

 

(2) Social security

 

(3) Relationship

(4) if qualifies for (see instructions):

 

If more

 

 

(1) First name

Last name

 

 

 

 

 

 

 

number

 

 

 

 

 

to you

Child tax credit

 

 

Credit for other dependents

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

than four

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

dependents,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

see instructions

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and check

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

here

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Attach

 

 

1

 

 

 

 

Wages, salaries, tips, etc. Attach Form(s) W-2

.

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

a

 

 

Tax-exempt interest . . .

2a

 

 

 

 

 

 

 

 

b Taxable interest

. . . .

 

 

.

 

 

2b

 

 

 

 

 

 

 

 

 

 

 

Sch. B if

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

a

 

 

Qualified dividends . . .

3a

 

 

 

 

 

 

 

 

b Ordinary dividends . . . .

.

 

 

3b

 

 

 

 

 

 

 

 

 

 

 

required.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4a

IRA distributions . . . .

4a

 

 

 

 

 

 

 

 

b Taxable amount

.

 

 

4b

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5a

Pensions and annuities . .

5a

 

 

 

 

 

 

 

 

b Taxable amount

.

 

 

5b

 

 

 

 

 

 

 

 

 

 

Standard

 

 

6a

Social security benefits . .

6a

 

 

 

 

 

 

 

 

b Taxable amount

.

 

 

6b

 

 

 

 

 

 

 

 

 

 

Deduction for—

7

 

 

 

 

Capital gain or (loss). Attach Schedule D if required. If not required, check here .

. . .

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Single or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

Other income from Schedule 1, line 10

.

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

Married filing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

separately,

9

 

 

 

 

Add lines 1, 2b, 3b, 4b, 5b, 6b, 7, and 8. This is your total income

 

9

 

 

 

 

 

 

 

 

 

 

 

$12,550

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Married filing

10

 

 

 

 

Adjustments to income from Schedule 1, line 26

.

 

 

10

 

 

 

 

 

 

 

 

 

 

 

jointly or

11

 

 

 

 

Subtract line 10 from line 9. This is your adjusted gross income

. . . . . . . . .

 

 

 

11

 

 

 

 

 

 

 

 

 

 

 

Qualifying

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

widow(er),

 

 

 

12

a

 

 

Standard deduction or itemized deductions (from Schedule A)

. .

12a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

$25,100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

b

Charitable contributions if you take the standard deduction (see instructions)

12b

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Head of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

household,

 

 

 

c

Add lines 12a and 12b

.

 

 

12c

 

 

 

 

 

 

 

 

 

$18,800

 

 

 

 

 

 

 

 

 

 

 

• If you checked

13

 

 

 

 

Qualified business income deduction from Form 8995 or Form 8995-A

.

 

 

13

 

 

 

 

 

 

 

 

 

 

 

any box under

14

 

 

 

 

Add lines 12c and 13

. . . . . . . . . . . . . . . . . . . . . .

 

 

.

 

 

14

 

 

 

 

 

 

 

 

 

 

 

Standard

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Deduction,

15

 

 

 

 

Taxable income. Subtract line 14 from line 11. If zero or less, enter -0-

.

 

 

15

 

 

 

 

 

 

 

 

 

 

 

see instructions.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For Disclosure, Privacy Act, and Paperwork Reduction Act Notice, see separate instructions.

 

 

 

 

Cat. No. 11320B

 

 

 

 

 

 

 

 

 

Form 1040 (2021)

 

 

Form 1040 (2021)

Page 2

 

16

Tax (see instructions). Check if any from Form(s): 1

8814

2

4972

 

3

 

 

. .

16

 

 

17

Amount from Schedule 2, line 3

. . . . . . . .

17

 

 

18

Add lines 16 and 17

. . . . . . . .

18

 

 

19

Nonrefundable child tax credit or credit for other dependents from Schedule 8812

19

 

 

20

Amount from Schedule 3, line 8

. . . . . . . .

20

 

 

21

Add lines 19 and 20

. . . . . . . .

21

 

 

22

Subtract line 21 from line 18. If zero or less, enter -0-

. . . . . . . .

22

 

 

23

Other taxes, including self-employment tax, from Schedule 2, line 21 .

. . . . . . . .

23

 

 

24

Add lines 22 and 23. This is your total tax

. . . . .

. .

24

 

 

25

Federal income tax withheld from:

 

 

 

 

 

 

 

 

 

 

 

 

 

a

Form(s) W-2

 

25a

 

 

 

 

 

 

 

b

Form(s) 1099

 

25b

 

 

 

 

 

 

 

c

Other forms (see instructions)

 

25c

 

 

 

 

 

 

 

d

Add lines 25a through 25c

. . . . . . . .

25d

 

If you have a

26

2021 estimated tax payments and amount applied from 2020 return . .

. . . . . . . .

26

 

27a

Earned income credit (EIC)

 

27a

 

 

 

 

 

 

qualifying child,

 

 

 

 

 

 

 

attach Sch. EIC.

 

Check here if you were born after January 1, 1998, and before

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

January 2, 2004, and you satisfy all the other requirements for

 

 

 

 

 

 

 

 

 

 

 

taxpayers who are at least age 18, to claim the EIC. See instructions

 

 

 

 

 

 

 

 

 

 

b

Nontaxable combat pay election . . . .

27b

 

 

 

 

 

 

 

 

 

 

 

 

c

Prior year (2019) earned income . . . .

27c

 

 

 

 

 

 

 

 

 

 

 

 

28

Refundable child tax credit or additional child tax credit from Schedule 8812

 

28

 

 

 

 

 

 

 

29

American opportunity credit from Form 8863, line 8

 

29

 

 

 

 

 

 

 

30

Recovery rebate credit. See instructions

 

30

 

 

 

 

 

 

 

31

Amount from Schedule 3, line 15

 

31

 

 

 

 

 

 

 

32

Add lines 27a and 28 through 31. These are your total other payments and refundable credits

32

 

 

33

Add lines 25d, 26, and 32. These are your total payments . . . .

. . . . .

. .

33

 

Refund

34

If line 33 is more than line 24, subtract line 24 from line 33. This is the amount you overpaid

 

. .

34

 

35a

Amount of line 34 you want refunded to you. If Form 8888 is attached, check here . .

.

 

35a

 

 

 

 

Direct deposit?

b

Routing number

 

c Type:

 

 

Checking

 

Savings

 

 

See instructions.

d

Account number

 

 

 

 

 

 

 

 

 

 

 

 

 

36

Amount of line 34 you want applied to your 2022 estimated tax .

.

 

36

 

 

 

 

 

 

Amount

37

Amount you owe. Subtract line 33 from line 24. For details on how to pay, see instructions

 

.

37

 

You Owe

38

Estimated tax penalty (see instructions) . . .

. . . . .

.

 

38

 

 

 

 

 

 

Third Party

Do

you want to allow another person to discuss this return with the IRS? See

 

 

 

 

 

 

Designee

instructions

. . . . . . . . . . . . . . . . . . .

.

Yes. Complete below.

No

 

Designee’s

 

Phone

 

 

 

 

 

Personal identification

 

 

name

 

no.

 

 

 

 

 

number (PIN)

 

 

Sign

Here

Joint return? See instructions. Keep a copy for your records.

Under penalties of perjury, I declare that I have examined this return and accompanying schedules and statements, and to the best of my knowledge and belief, they are true, correct, and complete. Declaration of preparer (other than taxpayer) is based on all information of which preparer has any knowledge.

Your signature

Date

Your occupation

If the IRS sent you an Identity

 

 

 

Protection PIN, enter it here

 

 

 

(see inst.)

 

 

 

 

 

 

Spouse’s signature. If a joint return, both must sign.

Date

Spouse’s occupation

If the IRS sent your spouse an

 

 

Identity Protection PIN, enter it here

 

 

 

(see inst.)

 

 

 

 

 

 

Phone no.

Email address

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Paid

Preparer’s name

Preparer’s signature

Date

PTIN

 

Check if:

 

 

 

 

 

 

 

 

 

 

Self-employed

 

 

 

Preparer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Firm’s name

 

 

 

Phone no.

 

 

 

 

 

 

Use Only

 

 

 

 

 

 

 

 

 

 

 

Firm’s address

 

 

 

Firm’s EIN

 

 

 

 

 

 

 

 

 

 

 

Go to www.irs.gov/Form1040 for instructions and the latest information.

 

 

 

 

 

Form 1040 (2021)

Document Specs

Fact Name Description
Purpose The IRS 1040 form is used by individuals to file their annual income tax returns.
Filing Requirement Most U.S. citizens and residents must file a 1040 if their income exceeds a certain threshold.
Filing Deadline The typical deadline for submitting the 1040 form is April 15 of each year, unless it falls on a weekend or holiday.
Form Variants There are several variants of the 1040 form, including 1040-SR for seniors and 1040-NR for non-residents.
Standard Deduction Taxpayers can claim a standard deduction, which reduces taxable income, the amount of which varies by filing status.
State-Specific Forms Each state has its own tax form, governed by state tax laws, which may require additional information from the federal 1040.
Refunds Taxpayers may receive a refund if they overpaid their taxes, which can be requested via the 1040 form.
Electronic Filing The IRS encourages electronic filing, which is often faster and more secure than paper filing.
Amendments If errors are found after filing, taxpayers can amend their returns using Form 1040-X.