Corporation Depreciation and Amortization

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Corporation Depreciation and Amortization
Part I Election To Expense Certain Property Under IRC Section 179
1	Maximum deduction under IRC Section 179 for California							1
2	Total cost of IRC Section 179 property placed in service							2
3	Threshold cost of IRC Section 179 property before reduction in limitation							3
4	Reduction in limitation. Subtract line 3 from line 2. If zero or less, enter -0-							4
5	Dollar limitation for taxable year. Subtract line 4 from line 1. If zero or less, enter -0-							5
(a) Description of property				(b) Cost (business use only)			(c) Elected cost
6



7	Listed property (elected IRC Section 179 cost)						7
8	Total elected cost of IRC Section 179 property. Add amounts in column (c), line 6 and line 7							8
9	Tentative deduction. Enter the smaller of line 5 or line 8							9
10	Carryover of disallowed deduction from prior taxable years							10
11	Business income limitation. Enter the smaller of business income (not less than zero) or line 5							11
12	IRC Section 179 expense deduction. Add line 9 and line 10, but do not enter more than line 11							12
13	Carryover of disallowed deduction to 2018. Add line 9 and line 10, less line 12						13
Part II Depreciation and Election of Additional First Year Depreciation Deduction Under R&TC Section 24356
(a) Description of property		(b) Date acquired (mm/dd/yyyy)	(c) Cost or other basis	(d) Depreciation allowed or allowable in earlier years	(e) Depreciation method	(f) Life or rate	(g) Depreciation for this year	(h) Additional first year depreciation
14




15	Carryover of disallowed deduction to 2018. Add line 9 and line 10, less line 12						15
Part III Summary
16	Total: If the corporation is electing: IRC Section 179 expense, add the amount on line 12 and line 15, column (g) or Additional first year depreciation under R&TC Section 24356, add the amounts on line 15, columns (g) and (h) or Depreciation (if no election is made), enter the amount from line 15, column (g)							16
17	Total depreciation claimed for federal purposes from federal Form 4562, line 22							17
18	Depreciation adjustment. If line 17 is greater than line 16, enter the difference here and on Form 100 or Form 100W, Side 1, line 6. If line 17 is less than line 16, enter the difference here and on Form 100 or Form 100W, Side 2, line 12. (If California depreciation amounts are used to determine net income before state adjustments on Form 100 or Form 100W, no adjustment is necessary .)							18
Part IV Amortization
(a) Description of property		(b) Date acquired (mm/dd/yyyy)	(c) Cost or other basis	(d) Amortization allowed or allowable in earlier years	(e) R&TC section (see instructions)		(f) Period or percentage	(g) Amortization for this year
19




20	Total. Add the amounts in column (g)							20
21	Total amortization claimed for federal purposes from federal Form 4562, line 44							21
22	Amortization adjustment. If line 21 is greater than line 20, enter the difference here and on Form 100 or Form 100W, Side 1, line 6. If line 21 is less than line 20, enter the difference here and on Form 100 or Form 100W, Side 2, line 12							22

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Frequently Asked Questions

How does community property affect my CA return?

Married/RDP filers may have community property allocation rules; see CA guidance.

Are employer retirement contributions taxed by CA?

Pre-tax 401(k)/403(b) contributions reduce federal and generally CA taxable wages.

Is there a separate Medicare surtax in CA?

Additional Medicare is federal; California PIT is separate and applies via its own brackets/credits.

Does CA tax out-of-state remote work?

CA generally taxes income earned while working in CA; non-CA work may be non-CA source—track days/location.

Can I deduct mortgage interest in CA?

Often yes, subject to CA limits/adjustments; compare standard vs itemized for CA.

Important Notes

All calculations are estimates for guidance only. Always review your return and consider professional advice when submitting official filings.