Water's-Edge Foreign Investment Interest Offset

Use the California Tax Form Calculator California Tax Form 2424 as a stand alone tax form calculator to quickly calculate specific amounts for your 2026 California state tax return. Alternatively, you can use one of our Combined Federal and State Tax Estimators to quickly calculate your salary, tax, and take-home pay.

Water's-Edge Foreign Investment Interest Offset
1	Dividend deduction (R&TC Section 24411) from Schedules H (100W or 100S), Part II, line 4, column (g) If line 1 is zero, the interest offset is zero. Do not complete this form.		1
2	Total interest expense		2
3	Interest expense specifically assignable to foreign investment		3
4	Interest expense specifically assignable to domestic investment or other property		4
5	Unassigned interest expense, add line 3 and line 4, and subtract from line 2		5
6	Unassigned interest expense included in line 5, paid on debt incurred prior to January 1, 1988		6
7	Unassigned interest expense included in line 5, paid on debt incurred on or after January 1, 1988		7
8	Interest expense included in line 7, paid with respect to debt proceeds deposited in restricted accounts.		8
9	Subtract line 8 from line 7		9
10	Unassigned interest expense subject to allocation. Add line 6 and line 9		10
11	Unassigned foreign investment	11
12	Unassigned total assets	12
13	Percentage. Divide line 11 by line 12	13
14	Unassigned interest expense allocated to foreign investment. Multiply line 10 by line 13		14
15	Interest expense attributable to foreign investment. Add line 3 and line 14		15
16	Enter the smaller of line 1 or line 15		16
17	Multiply line 16 by % (). Enter here and on Schedule R, Side 1, line 1b		17

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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.