Form 1120-W
(WORKSHEET)
Department of the Treasury
Internal Revenue Service
Estimated Tax for Corporations
For calendar year 2020, or tax year beginning , 2020, and ending , 20
Go to www.irs.gov/Form1120W for instructions and the latest information.
Keep for the corporation’s records—Do not send to the Internal Revenue Service.
OMB No. 1545-0123
2020
Estimated Tax Computation
1 Taxable income expected for the tax year . . . . . . . . . . 1
2 Multiply line 1 by 21% (0.21) . . . . . . . . . . . . . . . . . . . . . . . . 2
3 Tax credits. See instructions. . . . . . . . . . . . . . . . . . . . . . . . 3
4 Subtract line 3 from line 2 . . . . . . . . . . . . . . . . . . . . . . . . 4
5 Other taxes. See instructions . . . . . . . . . . . . . . . . . . . . . . . 5
6 Total tax. Add lines 4 and 5 . . . . . . . . . . . . . . . . . . . . . . . . 6
7 Credit for federal tax paid on fuels and other refundable credits. See instructions . . . . . . 7
8 Subtract line 7 from line 6. Note: If the result is less than $500, the corporation is not required to
make estimated tax payments . . . . . . . . . . . . . . . . . . . . . . .
8
9 a
Enter the tax shown on the corporation’s 2019 tax return. See instructions. Caution: If the tax is zero or
the tax year was for less than 12 months, skip this line and enter the amount from line 8 on line 9b . .
9a
b Enter the smaller of line 8 or line 9a. If the corporation is required to skip line 9a, enter the
amount from line 8 . . . . . . . . . . . . . . . . . . . . . . . . . . .
9b
(a) (b) (c) (d)
10 Installment due dates. See
instructions
. . . . . .
10
11
Required installments. Enter
25% of line 9b in columns (a)
through (d). If the corporation uses
the annualized income installment
method, or adjusted seasonal
installment method, or is a “large
corporation,” see the instructions
for the amount to enter . . . .
11
For Paperwork Reduction Act Notice, see instructions.
Cat. No. 11525G
Form 1120-W (2020)
Form 1120-W (WORKSHEET) 2020
Page 2
Schedule A
Adjusted Seasonal Installment Method and Annualized Income Installment Method
(see instructions)
Part I Adjusted Seasonal Installment Method
Use this method only if the base period percentage for any 6
consecutive months is at least 70%.
(a) (b) (c) (d)
First 3 months First 5 months First 8 months First 11 months
1 Enter taxable income for the following periods:
a Tax year beginning in 2017.
1a
b Tax year beginning in 2018.
1b
c Tax year beginning in 2019.
1c
2
Enter taxable income for each period for the tax year beginning in
2020. See instructions for the treatment of extraordinary items.
2
First 4 months First 6 months First 9 months Entire year
3 Enter taxable income for the following periods:
a Tax year beginning in 2017.
3a
b Tax year beginning in 2018.
3b
c Tax year beginning in 2019.
3c
4
Divide the amount in each column on line 1a by the amount in
column (d) on line 3a.
4
5
Divide the amount in each column on line 1b by the amount in
column (d) on line 3b.
5
6
Divide the amount in each column on line 1c by the amount in
column (d) on line 3c.
6
7 Add lines 4 through 6.
7
8 Divide line 7 by 3.0.
8
9a Divide line 2 by line 8.
9a
b Extraordinary items (see instructions).
9b
c Add lines 9a and 9b. 9c
10
Figure the tax on the amount on line 9c by following the same
steps used to figure the tax on page 1, line 2.
10
11a
Divide the amount in columns (a) through (c) on line 3a by the
amount in column (d) on line 3a.
11a
b
Divide the amount in columns (a) through (c) on line 3b by the
amount in column (d) on line 3b.
11b
c
Divide the amount in columns (a) through (c) on line 3c by the
amount in column (d) on line 3c.
11c
12 Add lines 11a through 11c.
12
13 Divide line 12 by 3.0.
13
14
Multiply the amount in columns (a) through (c) of line 10 by the
amount in the corresponding column of line 13. In column (d),
enter the amount from line 10, column (d).
14
15 Reserved. 15
16
Enter any other taxes for each payment period. See instructions.
16
17 Add lines 14 and 16.
17
18
For each period, enter the same type of credits as allowed on
page 1, lines 3 and 7. See instructions.
18
19 Subtract line 18 from line 17. If zero or less, enter -0-.
19
Form 1120-W (2020)
Form 1120-W (WORKSHEET) 2020
Page 3
Part II
Annualized Income Installment Method
(a) (b) (c) (d)
20 Annualization periods (see instructions).
20
First
months
First
months
First
months
First
months
21
Enter taxable income for each annualization period. See
instructions for the treatment of extraordinary items.
21
22 Annualization amounts (see instructions).
22
23a Annualized taxable income. Multiply line 21 by line 22.
23a
b Extraordinary items (see instructions).
23b
c Add lines 23a and 23b.
23c
24
Figure the tax on the amount in each column on line 23c by
following the same steps used to figure the tax on page 1,
line 2.
24
25 Reserved. 25
26
Enter any other taxes for each annualization period. See
instructions.
26
27 Total tax. Add lines 24 and 26.
27
28
For each annualization period, enter the same type of credits
as allowed on page 1, lines 3 and 7. See instructions.
28
29
Total tax after credits. Subtract line 28 from line 27. If zero or
less, enter -0-.
29
30 Applicable percentage.
30 25% 50% 75% 100%
31 Multiply line 29 by line 30.
31
Part III
Required Installments
Note: Complete lines 32 through 38 of one column before
completing the next column.
1st installment 2nd installment 3rd installment 4th installment
32
If only Part I or Part II is completed, enter the amount in each
column from line 19 or line 31. If both parts are completed,
enter the smaller of the amounts in each column from line 19
or line 31.
32
33
Add the amounts in all preceding columns of line 38. See
instructions.
33
34
Adjusted seasonal or annualized income installments.
Subtract line 33 from line 32. If zero or less, enter -0-.
34
35
Enter 25% of page 1, line 9b, in each column. Note: “Large
corporations,” see the instructions for page 1, line 11, for the
amount to enter.
35
36
Subtract line 38 of the preceding column from line 37 of the
preceding column.
36
37 Add lines 35 and 36.
37
38
Required installments. Enter the smaller of line 34 or line 37
here and on page 1, line 11. See instructions.
38
Form 1120-W (2020)