Nonprofit Lobbying Rules for Tax-Exempt Organizations

A 501(c)(3) is allowed to lobby, but only within limits. Under nonprofit lobbying rules, an organization operates by default under the “substantial part” test, which says lobbying cannot be a substantial portion of its activities but never puts a number on that. Organizations that want clear numbers can file Form 5768 and elect into the Section 501(h) expenditure test, which sets a sliding scale based on budget size and caps total lobbying at $1,000,000 per year. Going over the limits triggers an excise tax; going over persistently costs the organization its tax-exempt status.

Lobbying Is Not the Same as Campaigning

Before the limits matter, one line has to be clear. Lobbying means trying to influence legislation. Political campaign activity means supporting or opposing candidates for public office, and the IRS bans it outright for every 501(c)(3). There is no dollar threshold and no safe harbor. Endorsing a candidate on behalf of the organization, donating to a campaign, or running a voter drive that favors one party can cost the exemption and trigger excise taxes.¹

Truly nonpartisan work is fine. Voter guides covering all candidates evenly, candidate forums with equal time, and get-out-the-vote drives that favor no one remain permissible. Everything in the rest of this article is about lobbying, not campaigning.

What Counts as Lobbying

The IRS recognizes two kinds. Direct lobbying is a communication with a legislator, legislative staffer, or official who drafts legislation that both refers to a specific bill or proposal and takes a position on it. Both elements have to be present. A letter to a senator describing your mission, with no bill mentioned, is not direct lobbying. Communications with executive branch officials count only when the principal purpose is to influence legislation.²³

Grassroots lobbying targets the general public. It requires three elements: reference to specific legislation, a view on it, and a call to action urging the audience to contact their representatives. The call to action can be a legislator’s phone number or address, a tear-off postcard, a petition, or an identification of undecided or opposing legislators. A newsletter that discusses a bill without asking readers to do anything is issue advocacy, not lobbying.²

Activities Carved Out Entirely

Some communications look like lobbying but don’t count against your limits at all.

Nonpartisan analysis or research on a legislative topic is exempt, as long as it presents the relevant facts fully enough that readers can form their own opinion. The IRS doesn’t require neutrality; it requires a fair presentation. A piece that offers only unsupported opinion doesn’t qualify.⁴

Technical advice provided in response to a written request from a legislative committee is not lobbying. The government asked, so the response isn’t an unsolicited attempt to influence legislation.⁵

Self-defense communications are also carved out. An organization can lobby on legislation that would affect its own existence, powers, tax-exempt status, or the deductibility of contributions to it, without that work counting toward the limits. Appropriations bills that merely affect funding generally don’t qualify.

The Default Rule: The Substantial Part Test

Every 501(c)(3) starts here. The statute says no substantial part of an organization’s activities may consist of attempting to influence legislation, but it never defines “substantial.”⁶ The IRS decides case by case, weighing the time paid staff and volunteers spend on lobbying, the money involved, and how central lobbying is to the mission.⁷

The risk under this test is binary. If the IRS later decides lobbying was substantial, the organization loses its exemption; there is no intermediate penalty short of that. Section 4912 then adds a 5 percent excise tax on the year’s lobbying expenditures, and any manager who knowingly agreed to those expenditures owes a separate 5 percent.⁸

The 501(h) Expenditure Test: Clear Dollar Limits

An organization that wants predictability can file Form 5768 to elect into the expenditure test under Section 501(h). The vague standard is replaced with fixed dollar ceilings tied to the budget.⁹ Churches and private foundations cannot make the election.

The total lobbying nontaxable amount is a sliding percentage of exempt purpose expenditures:¹⁰

First $500,000 of exempt purpose expenditures: 20 percent
$500,001 to $1,000,000: $100,000 plus 15 percent of the amount over $500,000
$1,000,001 to $1,500,000: $175,000 plus 10 percent of the amount over $1,000,000
Over $1,500,000: $225,000 plus 5 percent of the amount over $1,500,000

The total is capped at $1,000,000 per year, regardless of budget size. A separate sub-cap applies to grassroots lobbying: it cannot exceed 25 percent of the total lobbying nontaxable amount. An organization whose total lobbying limit works out to $100,000 can spend at most $25,000 of that on grassroots activity. The remainder is available for direct lobbying or any mix of the two.

What Happens If You Go Over

Exceeding the nontaxable amount in a single year does not automatically end the exemption. It triggers a 25 percent excise tax on the excess, and the same tax applies separately to any excess grassroots spending.¹⁰

Revocation kicks in when overspending is persistent. The IRS uses a four-year rolling base period. If total lobbying over those four years exceeds 150 percent of the combined nontaxable amounts, or grassroots lobbying exceeds 150 percent of the combined grassroots nontaxable amounts, the organization loses 501(c)(3) status for the following year.¹¹ A one-year spike is survivable at a 25 percent tax cost. Chronic overspending is not.

Affiliated Organizations Count Together

When two 501(c)(3) organizations are connected — one controls the other’s legislative decisions, or shared board members give one the power to influence the other — the IRS treats them as a single organization for measuring lobbying. Their expenditures are combined and measured against the group’s combined limits.¹² Organizations uncertain about their status can request a ruling letter, for a fee.

Private Foundations Follow Different Rules

Private foundations cannot make the 501(h) election and operate under Section 4945 instead. Any lobbying expenditure by a private foundation is taxable: 20 percent on the foundation itself, plus a 5 percent tax on any manager who knowingly approved it, capped at $10,000 per expenditure. If the foundation fails to correct the expenditure within the taxable period, the additional tax is 100 percent on the foundation and up to 50 percent (capped at $20,000) on a manager who refuses to agree to the correction.¹³

Private foundations can still fund public charities that lobby, as long as the grant is not earmarked for lobbying and the amount does not exceed what the grantee budgeted for non-lobbying project activities that year.¹⁴ The self-defense exception applies to foundations too.

Reporting Lobbying on Schedule C

Any 501(c)(3) that lobbies at all must report it on Schedule C of Form 990. Organizations that elected 501(h) complete Part II-A, which asks for specific dollar totals for direct and grassroots lobbying. Organizations still under the substantial part test complete Part II-B, which asks narrative questions about the nature and extent of the lobbying activity.¹²

Reliable numbers depend on year-round recordkeeping. Track staff time spent on lobbying separately from other activities. Document consultant invoices, printing, postage, and travel tied to advocacy. Payments to outside organizations for lobbying purposes belong in the total as well. Overhead like rent and utilities has to be allocated using one of the methods the IRS accepts (a ratio method or one of two gross-up formulas); the choice should be made with an accountant, because different methods produce different totals depending on cost structure, and the total is what determines whether you are inside your limits.

1
Internal Revenue Service. Restriction of Political Campaign Intervention by Section 501(c)(3) Tax-Exempt Organizations
2
eCFR. 26 CFR 56.4911-2 – Lobbying Expenditures, Direct Lobbying Communications, and Grass Roots Lobbying Communications
3
Internal Revenue Service. Direct and Grass Roots Lobbying
4
Internal Revenue Service. Exception for Nonpartisan Analysis, Study and Research
5
eCFR. 26 CFR 56.4911-2 – Lobbying Expenditures, Direct Lobbying Communications, and Grass Roots Lobbying Communications – Section: Exceptions to the Definitions of Direct Lobbying Communication and Grass Roots Lobbying Communication
6
Office of the Law Revision Counsel. 26 USC 501 – Exemption From Tax on Corporations, Certain Trusts, Etc.
7
Internal Revenue Service. Measuring Lobbying: Substantial Part Test
8
Office of the Law Revision Counsel. 26 USC 4912 – Tax on Disqualifying Lobbying Expenditures of Certain Organizations
9
Internal Revenue Service. Measuring Lobbying Activity: Expenditure Test
10
Office of the Law Revision Counsel. 26 USC 4911 – Tax on Excess Expenditures To Influence Legislation
11
eCFR. 26 CFR 1.501(h)-3 – Lobbying or Grass Roots Expenditures Normally in Excess of Ceiling Amount
12
Internal Revenue Service. Instructions for Schedule C (Form 990 or 990-EZ)
13
Office of the Law Revision Counsel. 26 USC 4945 – Taxes on Taxable Expenditures
14
Internal Revenue Service. Specific Project Grants – Lobbying Exception