XYZ is a calendar-year corporation that began business on January 1, 2022. For the year, it reported the following information in its current-year audited income statement. Notes with important tax information are provided below.

1. XYZ owns 30% of the outstanding Hobble Corporation (HC) stock. Hobble Corporation reported $1,000,000 of income for the year. XYZ accounted for its investment in HC under the equity method, and it recorded its pro rata share of HC's earnings for the year. HC also distributed a $200,000 dividend to XYZ. For tax purposes, HC reports the actual dividend received as income, not the pro rata share of HC's earnings.
2. Of the $37,600 interest income, $9,400 was from a City of Seattle bond, $11,400 was from a Tacoma City bond, $10,400 was from a fully taxable corporate bond, and the remaining $6,400 was from a money market account.
3. This gain is from equipment that XYZ purchased in February and sold in December (i.e., it does not qualify as 1231 gain).
4. This includes total officer compensation of $2,500,000 (no one officer received more than $1,000,000 compensation).
5. This amount is the portion of incentive stock option compensation that was expensed during the year (recipients are officers).
6. XYZ actually wrote off $38,000 of its accounts receivable as uncollectible.
7. Tax depreciation was $2,450,000.
8. In the current year, XYZ did not make any actual payments on warranties it provided to customers.
9. XYZ made $500,000 of cash contributions to charities during the year
10. On July 1 of this year, XYZ acquired the assets of another business. In the process, it acquired $366,000 of goodwill. At the end of the year, XYZ wrote off $41,000 of the goodwill as impaired.
11. XYZ expensed all of its organizational expenditures for book purposes. XYZ expensed the maximum amount of organizational expenditures allowed for tax purposes.
12. The other expenses do not contain any items with book-tax differences.
13. This is an estimated tax provision (federal tax expense) for the year. Assume that XYZ is not subject to state income taxes.

Estimated tax information:

XYZ made four equal estimated tax payments totaling $480,000 ($120,000 per quarter). For purposes of estimated tax liabilities, assume XYZ was in existence in 2022 and that in 2022 it reported a tax liability of $668,000. During 2023, XYZ determined its taxable income at the end of each of the first three quarters as follows:

Quarter-end	Cumulative taxable income (loss)
First	$ 510,000
Second	$ 1,310,000
Third	$ 1,870,000

Finally, assume that XYZ is not a large corporation for purposes of estimated tax calculations.

a. Compute XYZ's taxable income.

b. Compute XYZ's income tax liability.

c. Complete XYZ's Schedule M-1.

d. Determine the quarters for which XYZ is subject to underpayment of estimated tax penalties.

Note: Round "Annualization Factor" for Fourth quarter to 2 decimal places.