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Schedule C (Form 990) – Political Campaign and Lobbying Activities

Last reviewed: 2025-10-26

Use the Schedule C (Form 990sc) – Political and Lobbying Disclosures (2026) Tax Form Calculator Schedule C (Form 990sc) – Political and Lobbying Disclosures (2026) as a stand alone tax form calculator to quickly calculate specific amounts for your 2026 990sc 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.

Schedule C (Form 990) is used by tax-exempt organizations to disclose political campaign activities and lobbying expenditures. It ensures transparency in how nonprofits engage in advocacy, political communication, or attempt to influence legislation.

Organizations must complete different parts of Schedule C based on their exemption type:

Careful tracking and accurate reporting are essential to maintain exempt status and avoid excise tax penalties.

Political Campaign and Lobbying Activities
Part I-A Complete if the organization is exempt under section 501(c) or is a section 527 organization.
1Provide a description of the organization’s direct and indirect political campaign activities in Part IV. (see instructions for definition of “political campaign activities”)
2$
3
Part I-B Complete if the organization is exempt under section 501(c)(3).
1$
2$
3 Yes   No
4a Yes   No
bIf “Yes,” describe in Part IV.
Part I-C Complete if the organization is exempt under section 501(c), except section 501(c)(3).
1$
2$
3$
4 Yes   No
bEnter the names, addresses and employer identification number (EIN) of all section 527 political organizations to which the filing organization made payments. For each organization listed, enter the amount paid from the filing organization’s funds. Also enter the amount of political contributions received that were promptly and directly delivered to a separate political organization, such as a separate segregated fund or a political action committee (PAC). If additional space is needed, provide information in Part IV.
(1)
(2)
(3)
(4)
(5)
(6)
Part II-A Complete if the organization is exempt under section 501(c)(3) and filed Form 5768 (election under section 501(h)).
A   Check ▸
B   Check ▸
Limits on Lobbying Expenditures
(The term “expenditures” means amounts paid or incurred.)
(a) Filing organization’s totals(b) Affiliated group totals
1a
b
c
d
e
f
Not over $% of the amount on line 1e.
Over $ but not over $$ plus % of the excess over $.
Over $ but not over $$ plus % of the excess over $.
Over $ but not over $$ plus % of the excess over $.
Over $$.
g
h
i
j Yes   No
4-Year Averaging Period Under section 501(h)
(Some organizations that made a section 501(h) election do not have to complete all of the five columns below.
See the separate instructions for lines 2a through 2f.)
Lobbying Expenditures During 4-Year Averaging Period
Calendar year (or fiscal year beginning in)
2a
b
c
d
e
f
Part II-B Complete if the organization is exempt under section 501(c)(3) and has NOT filed Form 5768 (election under section 501(h)).
(a)(b)
YesNoAmount
1During the year, did the filing organization attempt to influence foreign, national, state or local legislation, including any attempt to influence public opinion on a legislative matter or referendum, through the use of:
a
b
c
d
e
f
g
h
i
j
2a
b
c
d
Part III-A Complete if the organization is exempt under section 501(c)(4), section 501(c)(5), or section 501(c)(6).
YesNo
11
22
33
Part III-B Complete if the organization is exempt under section 501(c)(4), section 501(c)(5), or section 501(c)(6) and if either (a) BOTH Part III-A, lines 1 and 2, are answered “No,” OR (b) Part III-A, line 3, is answered “Yes.”
11
2Section 162(e) nondeductible lobbying and political expenditures (do not include amounts of political expenses for which the section 527(f) tax was paid).
a2a
b2b
c2c
33
44
55
Part IV Supplemental Information

Key disclosures include:

Failure to complete Schedule C properly may result in IRS scrutiny or jeopardize tax-exempt status for organizations overstepping lobbying limits.

Last reviewed: 2025-10-26: If you believe this form requires an update, please contact us.

To ensure compliance, maintain accurate accounting records for political and lobbying expenditures throughout the year. Use our Schedule C Calculator to test limits under the 501(h) expenditure test and validate reporting thresholds.

For detailed instructions and examples, see the IRS Schedule C Instructions.

Frequently Asked Questions

Can I estimate the General Business Credit?

Start with Form 3800 and then reflect the credit here.

How much would a 401(k) contribution change my net?

Model it with the 401(k) Calculator then rerun this page with your pre-tax amount.

Considering an IRS Offer in Compromise?

Read through Form 656-B to understand eligibility and steps.

What does FICA include?

FICA includes Social Security and Medicare payroll taxes withheld from employee wages.

Is there a quick pay-frequency comparison?

Yes—switch frequency on this page; for employer filings see 941 vs 944.

Important Notes

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