Instructions For Form Ct-1 X (Rev. February 2015) (Page 3 of 13) in pdf

If you file Form CT-1 X to correct overreported

Overreported tax—adjustment process. If you

amounts in the last 90 days of a period of

overreported tax and choose to apply the credit to Form

limitations, you must use the claim process. You

CT-1, file an adjusted return on Form CT-1 X as soon as

CAUTION

cannot use the adjustment process. If you also are

possible after you discover the error but more than 90

correcting underreported amounts, you must file another

days before the period of limitations on the credit or refund

Form CT-1 X to correct the underreported amounts using

for Form CT-1 expires. See Is There a Deadline for Filing

the adjustment process and pay any tax due.

Form CT-1 X, later.

Where Should You File Form CT-1 X?

Form CT-1 X cannot be used to correct

overreported amounts of Tier 1 Employee

Additional Medicare Tax unless the amounts

Send your completed Form CT-1 X to:

CAUTION

were not withheld from employee compensation.

Department of the Treasury

Example—You want your credit applied to Form

Internal Revenue Service Center

CT-1. You filed your 2014 Form CT-1 on February 25,

Cincinnati, OH 45999-0007

2015, and payments were timely made. On May 4, 2015,

you discover that you overreported tax on your 2014 Form

How Should You Complete Form CT-1

CT-1. You file Form CT-1 X on June 3, 2015. The IRS

treats your credit as a tax deposit made on January 1,

2015. When you file your 2015 Form CT-1, include the

Use a Separate Form CT-1 X for Each Year You

amount from Form CT-1 X, line 20, on the “Total railroad

retirement tax deposits” line of your 2015 Form CT-1.

Are Correcting

Overreported tax—claim process. If you overreported

Use a separate Form CT-1 X for each Form CT-1 that you

tax on Form CT-1, you may choose to file a claim for

are correcting. For example, if you found errors on your

refund or abatement on Form CT-1 X any time before the

Forms CT-1 for 2013 and 2014, file one Form CT-1 X to

period of limitations on credit or refund expires on Form

correct the 2013 Form CT-1. File a second Form CT-1 X

CT-1. If you also need to correct any underreported

to correct the 2014 Form CT-1.

amounts, you must file another Form CT-1 X reporting

EIN, RRB Number, Name, and Address

only corrections to the underreported amounts. See Is

There a Deadline for Filing Form CT-1 X, later.

Enter your EIN, RRB number, name, and address in the

spaces provided. Also enter your name and EIN on the

You may not file a refund claim to correct Tier 1

top of pages 2 and 3. Be sure to write your name, EIN,

Employee Additional Medicare Tax actually

“Form CT-1 X,” and the calendar year you are correcting

withheld from employees.

on the top of any attachments. If your address has

CAUTION

changed since you filed your Form CT-1, enter the

Is There a Deadline for Filing Form

corrected information and the IRS will update your

CT-1 X?

address of record.

Return You Are Correcting

Generally, you may correct overreported taxes on a

previously filed Form CT-1 if you file Form CT-1 X within 3

Enter the calendar year of the Form CT-1 you are

years of the date Form CT-1 was filed or 2 years from the

correcting at the top of page 1. Enter the calendar year on

date you paid the tax reported on Form CT-1, whichever is

pages 2 and 3 and on any attachments. Be sure to write

later. You may correct underreported taxes on a

your name, EIN, “Form CT-1 X,” and the calendar year

previously filed Form CT-1 if you file Form CT-1 X within 3

you are correcting on the top of any attachments.

years of the date the Form CT-1 was filed. We call each of

these time frames a “period of limitations.” For purposes

Enter the Date You Discovered Errors

of the period of limitations, Form CT-1 is considered filed

You must enter the date you discovered errors. You

on the last day in February of the succeeding year if filed

discover an error when you have enough information to be

before that date.

able to correct it. If you are reporting several errors that

you discovered at different times, enter the earliest date

Example. You filed your 2013 Form CT-1 on January

you discovered an error here. Report any subsequent

28, 2014, and payments were timely made. The IRS treats

dates and related errors on line 23.

the return as if it were filed on February 28, 2014. On

January 13, 2017, you discover that you overreported

Must You Make an Entry on Each Line?

RRTA compensation on that form by $10,000. To correct

the error you must file Form CT-1 X by February 28, 2017,

You must provide all of the information requested at the

which is the end of the period of limitations, and use the

top of page 1 of Form CT-1 X. You must check one box

claim process.

(but not both) in Part 1. In Part 2, you must check the box

on line 3 and any applicable boxes on lines 4 and 5. In

Part 3, if any line does not apply, leave it blank. Complete

Parts 4 and 5 as instructed.

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Instructions for Form CT-1 X (Rev. 2-2015)

Instructions For Form Ct-1 X (Rev. February 2015) Page 3

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