Wisconsin Wisconsin Corporation Estimated Tax Voucher - Instructions

Wisconsin Corporation Estimated Tax Voucher - Instructions
2024 DC-045a Instructions for 2024 Wisconsin Form Corp-ES - Corporation Estimated Tax
Instructions for 2024 Wisconsin Form Corp-ES – Corporation Estimated Tax
GENERAL INSTRUCTIONS
Purpose of Form
Corporations use the 2024 Form Corp-ES to make estimated
tax and economic development surcharge payments for taxable
years that begin in 2024.
Tax-exempt corporations filing Form 4T, Exempt Organization
Business Franchise or Income Tax Return, use Form Corp-ES
to make estimated payments with respect to their unrelated
business taxable income. Tax-exempt trusts filing Form 4T
use Form 1-ES to make estimated payments. The corporate
estimated tax rules apply to tax-exempt organizations except
as noted in these instructions.
If you receive an extension of time to file your return, use a
voucher for making an estimated tax and surcharge payment by
the unextended due date of the return. If you did not receive
vouchers by mail, you may obtain personalized vouchers by
downloading them from the Department’s web site at www.
revenue.wi.gov or by calling (608) 266-1961.
Federal Employer Identification Number
Enter the corporation’s federal employer identification number
(EIN). If you have not yet applied for a federal EIN, you may do
so by filing federal Form SS-4 with the Internal Revenue Service,
calling (800) 829-4933, or applying online at www.irs.gov.
Who Must Pay Estimated Tax and Economic Development
Surcharge
Corporations must make estimated tax and surcharge
installment payments if the sum of the net tax and economic
development surcharge for the taxable year that begins in 2024
will be $500 or more.
Exception: You do not have to make estimated payments if
the taxable year that began in 2023 was a taxable year of 12
months, you did not have any liability for tax for the taxable year
that began in 2023, and you will have net income of less than
$250,000 for the taxable year that begins in 2024.
For a tax-option (S) corporation, net income for purposes of the
$250,000 threshold is the amount from Form 5S, Schedule S,
line 3, plus income from the election to be taxed at the entity
level from Schedule 5S-ET, line 17.
When to Pay Estimated Tax and Economic Development
Surcharge
In general, the first estimated tax and surcharge payment is
due the 15th day of the 4th month of the taxable year and is
equal to 1/4 of the total estimated tax and surcharge due (1/4 of
the amount on Schedule A, line 8). Exception: For fiscal years
beginning in April, the first estimated tax due date is the 15th day
of the 3rd month of the taxable year (June 15th). The payment
amounts and due dates for a calendar-year corporation that first
meets the filing requirements after February 28 are as follows:
If the requirement
is met after:	

Payment is due:

February 28 and
before June 1. . . . . . . . .  June 15
May 31 and
before September 1. . . .  September 15
August 31. . . . . . . . . . . . .  December 15
DC-045A (R. 2-24)

If the first payment required to be made is due
June 15, enter 1/2;
September 15, enter 3/4;
December 15, enter all
of the estimated tax and surcharge due (Schedule A, line 8) on
Schedule B, line 2, in the appropriate column.
Corporations filing returns on other than a calendar-year basis
should substitute the 15th day of the 4th, 6th, 9th, and 12th months
of the taxable year for the payment due dates of April 15, June
15, September 15, and December 15, respectively. Exception:
For fiscal years beginning in April, the first estimated tax due date
is the 15th day of the 3rd month of the taxable year (June 15th).
Likewise, the last day of the 2nd, 5th, and 8th months should
be substituted for February 28, May 31, and September 30, for
purposes of determining when the filing requirement is first met.
Short Taxable Year
No estimated tax and surcharge installment is required if the
short taxable year is a period of 1 month or less. If the short
taxable year is more than 1 month, installments are due as
shown:
	 Number of	
	Months in Short	
	 Taxable Year	
2-3
4-6
7-9
10-11
A	 =	
B	 =	
C	 =	
D	 =	

Number of	
Required	
Installments	

Installment
Due
Dates

1				D
2	
A			D
3	
A	B		D
4	
A	B	C	D

the 15th day of the 4th month of the taxable year*
the 15th day of the 6th month of the taxable year
the 15th day of the 9th month of the taxable year
the 15th day of the last month of the taxable year

*Exception: For fiscal years beginning in April, the first estimated
tax due date is the 15th day of the 3rd month of the taxable
year (June 15th).
If any due date falls on a Saturday, Sunday, or legal holiday,
use the next business day.
For more information, see section Tax 2.89, Wisconsin
Administrative Code.
New Corporations
The first franchise or income tax return filed by a corporation is
considered to cover an entire 12-month period for purposes of
determining estimated tax and surcharge installment due dates,
even though the corporation’s first year of Wisconsin operations
may cover less than 12 months.
The portion of the estimated tax and surcharge due for each
payment period varies, depending on the number of installments
required. If 3 installments are required, 1/2 of the estimated tax
and surcharge is due for the first installment and 1/4 is due for
each of the 2 remaining installments.
For example, a new corporation, which begins operations in
Wisconsin on March 1, 2024, and which elects to file franchise or
income tax returns on a calendar-year basis, will be required to
make 3 installment payments due June 15, September 15, and
December 15. If this new corporation’s 2024 estimated tax and
surcharge is $4,000, $2,000 would be due June 15 and $1,000
would be payable for each of the installments due September
15 and December 15.

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Schedule A Computation of Estimated Tax and Economic Development Surcharge
1	
2	
3	
4	
5	
6	
7	
8	

(A) Original Computation (B) Amended Computation

Amount of total estimated net income expected in taxable year that begins in 2024
Percentage of line 1 attributable to Wisconsin
Amount of estimated net income attributable to Wisconsin (multiply line 1 by line 2)
Franchise or income tax (for corporations, 7.9% of income on line 3; trusts use trust rates)
Total estimated credits
Net franchise or income tax (subtract line 5 from line 4)
Economic development surcharge (3% of line 4 for C corporations; S corporations and trusts see tax return instructions)
Total estimated tax and economic development surcharge (add lines 6 and 7)

Schedule B Computation of Installments Due

Installment Number
1

2

3

4

1	 Enter in columns 1 through 4 the install­ment due dates that correspond to
the 15th day of the 4th, 6th, 9th, and 12th months of the taxable year.*
2	 If 4 installments are due, enter in each column 1/4 of Schedule A, line 8, col.
A. If less than 4 installments are due, see instructions under “When to Pay.”
3	 Enter any overpayment from your 2023 Form 4, 4T, 5S, or 6 (apply first  to
col. 1 and carry any unused balance to col. 2, then col. 3, etc.).
4	 Installment amount (subtract line 3 from line 2). Enter here and on installment vouchers.

Schedule C Computation of Amended Installments Due

1	 Enter amended estimated tax and economic development surcharge from Schedule A, line 8, column B
2	Enter:	 a  Amount of overpayment from 2023 Form 4, 4T, 5S, or 6 offset against installments paid to date	
		
b  Amount of payments made to date	
3	 Total of payments and credits claimed to date (add line 2a and line 2b)
4	 Unpaid balance (subtract line 3 from line 1)
5	 Enter the due dates of remaining installments due (from Schedule B,
	 line 1)
6	 To determine the portion of line 4 to enter for each remaining
	 installment, see instructions under “Amended Installments”
7	 Enter the balance of 2023 overpayment – total overpayment credited
	 from 2023 Form 4, 4T, 5S, or 6 less amount entered on line 2a
	 above (apply first to next installment due and carry any unused balance
	 to the next installment due, etc.)
8	 Amended installments due (subtract line 7 from line 6)

a
b

Schedule D Record of Payments
1	
2	
3	
4	

2023 overpayment from Form 4, 4T, 5S, or 6
Date paid
Amount paid
Total 2024 payments (add line 1 and line 3)

Total

+

+

+

+

=

Keep Schedules A Through D for Your Records

*Exception: For fiscal years beginning in April, the first estimated tax due date is the 15th day of the 3rd month of the taxable year (June 15th).
Amended Installments
If the original estimate of tax and surcharge liability is materially
altered, you should amend remaining installment payments
to reflect the change in estimated tax and surcharge liability.
Complete column B of Schedule A to com­pute your amended
estimated tax and surcharge and Schedule C to compute your
amended installments due.
Determine the amount to enter on Schedule C, line 6, as follows:
a.	 If all 4 installments are being amended, enter 1/4 of Schedule
C, line 4, for all 4 periods.
b.	 If only the last 3 installments are being amend­ed, enter 1/2 of
Schedule C, line 4, on line 6 for the first amended installment
and 1/4 for each of the last 2 installments.
c.	 If only the last 2 installments are being amend­ed, enter 3/4
of Schedule C, line 4, for the first amended installment and
1/4 for the last installment.

d.	 If only the last installment is being amended, enter all of
Schedule C, line 4, on line 6.
Interest on Underpayment of Estimated Tax and
Economic Development Surcharge
If a required installment is not paid by its due date, 12%
annual interest may be imposed. The interest is computed
on the underpayment of each installment for the period
of the underpayment. Use Wisconsin Form U to compute
underpayment interest.
The period of the underpayment is the time from the due date
of the installment to the earlier of either the date on which it is
paid or the unextended due date of the tax return.
Underpayment interest will not be due if each required
installment is for the correct amount and is timely paid, and the
total tax and surcharge paid meets one of the following:
a.	 Is at least equal to 90% of the amount of tax and surcharge
shown on the 2024 franchise or income tax return filed.

Page 3
b.	 Is, for corporations with less than $250,000 of Wisconsin net
income, 100% of the tax shown on the 2023 return (a 2023
return must have been filed covering a full 12‑month year).
c.	 Is at least equal to 90% of the tax and surcharge figured by
annualizing the taxable income earned for the months ending
before the due date of the installment. (Note: Tax-exempt
organizations may annualize income for the months of the
taxable year ending one month before the installment due
date.)
	 Corporations that compute any installment using the
annualized income installment me­thod must increase the
next installment due which is not annualized by the amount
which the annualized installment was less than a or b above.
	 Corporations that file returns using the apportionment
method may use the apportionment percentage from the
return filed for the previous taxable year for computing
annualized income installments if (1) the previous year’s
return is filed by the due date of the installment for which
the income is being annualized, and (2) the apportionment
percentage on that return is greater than zero.
	 A multistate corporation that has at least $250,000
of Wisconsin net income may use the apportionment
percentage from its return filed for the previous taxable
year for computing annualized income installments if (1)
the previous year’s return is filed by the due date of the 3rd
installment, (2) the apportionment percentage on that return
is greater than zero, and (3) the apportionment percentage
used in computing the first 2 installments is not less than the
apportionment percentage used on that return.
Underpayment interest will be increased or decreased based on
any changes made to the tax and surcharge originally reported.
Refunds of Estimated Tax and Economic Development
Surcharge Payments
If your installment payments and credits exceed the tax and
surcharge liability for 2024, the overpayment may be refunded,
or all or part may be credited to your 2025 estimated tax and
surcharge with any remainder being refunded.

To apply, file Form 4466W, Corporation or Pass-Through Entity
Application for Quick Refund of Overpayment of Estimated Tax,
after the end of the taxable year and before filing your tax return.
You must subtract refunds obtained through this process from
the estimated tax and surcharge payments that you claim on
your tax return. (Note: Exempt trusts cannot file Form 4466W.)
A corporation that has a tax or surcharge due when filing its tax
return as a result of receiving a “quick refund” will be charged
12% annual interest on the amount of unpaid tax or surcharge
from the date the refund is issued to the earlier of the 15th day
of the 4th month after the close of the taxable year or the date
the tax and surcharge liability is paid. Any tax or surcharge
that remains unpaid after the unextended due date of the tax
return continues to be subject to 18% or 12% annual interest,
as appropriate.
Where to Obtain Assistance
If you need help, call (608) 266-0800 or contact any Department
of Revenue office. Telephone help is also available using TTY
equipment. Call the Wisconsin Telecommunications Relay
System at 711 or, if no answer, (800) 947-3529. These numbers
are to be used only when calling with TTY equipment.
PAYMENT INSTRUCTIONS
You may make estimated tax and surcharge payments using
electronic funds transfer (EFT) or through My Tax Account, the
department’s free electronic filing option. If making estimated
payments by EFT, do not complete and submit Form CorpES. For more information and EFT registration forms, visit the
Department’s web site at https://www.revenue.wi.gov/Pages/
FAQS/pcs-eft.aspx, e-mail DORBusinessTax@wisconsin.
gov, call (608) 264-9918, or write to the EFT Unit, Wisconsin
Department of Revenue, PO Box 8949, Madison, WI 537088949. For EFT payments of estimated tax, enter the last day of
your taxable year, not the last day of the quarter, for which the
payment is being made.
Otherwise, make your check payable to the Wisconsin
Department of Revenue, and mail your estimated tax voucher
and payment to:
Wisconsin Department of Revenue
PO Box 3028
Milwaukee, WI 53293-3028

A corporation that has overpaid its estimated tax and surcharge
may apply for a refund before filing its tax return if the
overpayment is

	
	
	

a.	 at least 10% of its estimated Wisconsin franchise or income
tax and surcharge liability and

Do not mail your 2024 estimated tax voucher with your franchise
or income tax return. They are to be mailed to different locations.

b.	 at least $500.