501c3 Fundraising And Regulations Made Easy To Understand

For the first time in years, a household that takes the standard deduction can write off a charitable gift.

Consequently, it took effect January 1, 2026, and $200 donor who gave last year gains a tax benefit this year.

This change supports 501c3 fundraising by encouraging donations from households that previously didn’t itemize.

Something else changed on the same day. Donors who itemize now have to clear a floor before any of their giving is deductible.

Neither change affects what your nonprofit can do with the money. Both change what you should be saying to the people who give it. And that’s the thing about 501(c)(3) fundraising rules: the ones that matter most to your revenue are usually the ones governing your donors, not you.

This article covers both. What you’re allowed to raise, what you’re allowed to spend it on, where you have to register before you ask, and what actually happens if you get it wrong.

Note: While we aim to cover as many applicable laws and regulations in this article by its publication date, do keep in mind that this is not a legal document, and you must always talk to a legal or financial advisor about 501 (c) (3) compliance. 

What changed for 501c3 fundraising in 2026

On January 1, 2026, the rules your donors use to deduct their gifts changed. The One Big Beautiful Bill Act, signed in July 2025, rewrote parts of Section 170 of the tax code, and those provisions took effect with the 2026 tax year.

None of it changes what your nonprofit can do. It changes what your donors get back, which means it changes what you should tell them.

The practical read: your smallest donors now have a reason to give. They didn’t have this incentive last year, and mid-level itemizing donors may pair multiple years of giving. This is relevant to 501c3 fundraising and should guide your planning.

Test messages that emphasize donor impact, show examples of how gifts are used, and offer clear giving options. Segment outreach to highlight small gifts and mid-level gifts, tailoring language to each donor group. Track responses from emails, messages, and appeals, then refine your year-end plan accordingly.

What didn’t change is worth saying plainly, because there’s been a lot of noise around deductions. Additionally, the fair market value rules for non-cash gifts stay the same. This helps avoid confusion for donors and nonprofits. The guidance remains clear and stable.

Form 8283 works the same way for reporting charitable donations of property. The $250 written acknowledgment threshold remains unchanged, so you don’t need to rebuild your receipting process. This continuity helps accountants and auditors as well. Overall, the framework remains familiar for 501c3 fundraising compliance.

What can a 501c3 spend money on?

Short answer: A 501(c)(3) can spend money on anything that furthers its exempt purpose. Program costs, staff salaries, rent, administration, and fundraising itself are all allowable. The limits are narrow but absolute. No money can benefit an insider, no money can go to a political campaign, and lobbying can’t become a substantial part of what you do.

Most nonprofit finance leads expect this answer to be a list of approved categories. It isn’t. The IRS doesn’t publish a list of things you’re allowed to buy.

What it tests instead is purpose. If the expense moves your mission forward, it’s allowable, and that’s a much wider door than most small nonprofits assume. Paying a fundraiser is allowable. So is rent, software, travel, insurance, and the accountant who files your Form 990.

The mistake that actually costs organizations their status isn’t spending on the wrong category. It’s spending in a way that benefits a specific person.

501c3 allowable expenses

Here’s what falls inside the door, with the caveat that every one of these still has to be reasonable and documented:

• Program costs that deliver your mission directly
• Salaries, benefits, and contractor payments at fair market value
• Rent, utilities, equipment, and software
• Fundraising costs, including events, direct mail, and calling or texting programs
• Marketing and communications tied to your mission
• Legal, accounting, and audit fees
• Staff and volunteer travel connected to program or fundraising work
• Insurance and professional liability coverage
• Board governance costs, including training

What a 501c3 can’t spend money on

Four hard limits. These are the ones that put your exempt status at risk rather than just earning you a question at audit:

1. Private inurement. No part of your earnings or assets can benefit an insider. A director, an officer, a substantial donor, or anyone with influence over the organization.
2. Excess benefit transactions. If an insider receives more than fair value from the organization, Section 4958 of the Internal Revenue Code imposes an excise tax on that person, not just the nonprofit. The individual pays.
3. Political campaign activity. A 501(c)(3) cannot support or oppose a candidate. Not with money, staff time, or your email list. This is an absolute prohibition, not a limit. We cover the detail in 501c3 political activity.
4. Substantial lobbying. Some lobbying is fine. Lobbying as a substantial part of what you do is not, and “substantial” has a measurable test if you elect one.

Let’s look at the different areas where spending rules govern 501 (c) (3) organizations.

Charitable Purpose

A 501 (c) (3) organization can spend funds only on activities related to its tax-exempt philanthropic purposes. As we discussed above, if the nonprofit falls under one of these categories- charitable, educational, religious, scientific, literary, or other specified purposes- then it is only under this category that it can make expenditures.

Any expense should be made keeping its mission and purpose in mind.

Prohibition of private benefit

Funds and assets accrued during a 501 (c) (3) fundraising initiative cannot benefit private individuals or stakeholders. Charity organizations are bound to further the cause for which they have received tax-exempt status.

Reasonable compensation

501 (c) (3) organizations can earn profits and use them to run the organization, compensate workers, and more.

However, pay must be at fair market value. Excessive compensation may be flagged as benefiting private individuals.

Program expenses vs. Administrative expenses

To maintain 501 (c) (3) status, a charitable organization must spend a significant amount on program expenses that directly impact its mission. Administrative expenses, while valid, cannot exceed program-related expenses.

The charity’s purpose is ultimately to serve the public interest.

Fundraising costs

Fundraising events and associated costs can be very expensive. Charities spend approximately $160 on average to acquire a single new donor. Nonprofits take two years to recoup donor acquisition costs.

Keeping these numbers in mind, charitable organizations must justify their fundraising efforts. Any expenses related to marketing, event planning and organizing, campaigns, and more need to be accounted.

Reporting and transparency

Even though 501 (c) (3) organizations are tax-exempt, that does not mean they don’t have to report their finances to the IRS.

They must report a detailed, timely account of income and expenses, use of funds, contributions, etc., to the IRS. Depending on the size and type of organization, they must file an annual Form 990 or something similar.

Grant restrictions: 501c3 Fundraising

Once an organization receives grants or funds, it must comply with the rules and conditions imposed by the grant. Complying with the granter’s regulations is imperative to maintain 501(c)(3) status.

501c3 fundraising is regulated

Most states in America require nonprofit organizations to register if they intend to solicit donations. Ideally, nonprofits hire accountants or CPAs to audit their fundraising and report it to the IRS to maintain their 501c3 status.

While 501(c)(3) status exempts nonprofits from tax on fundraising activities, exceptions exist, such as income earned from non-exempt purposes. Ethical fundraising requires nonprofits to solicit donations while keeping transparency at the core of their operations. 

The following sections discuss the exceptions and how your nonprofit can comply with regulations.

Read Also: Peer-to-Peer Fundraising: A How-To Guide for Raising Money | CallHub 

Rewinding to check your 501c3 fundraising status

A 501c3 status is granted to public charities, private foundations, and private operating foundations. For public charities, most donations must come from the general public, not a single person or group. It is this criterion that determines the public’s support of this charity.

A 501 (c) (3) fundraising status means this nonprofit is exempt from federal income tax. Organizations that work in the following areas can consider registering for a 501c3 status:

• Scientific
• Charitable
• Testing for public safety
• Literary
• Educational
• Animal or child cruelty prevention
• Fostering amateur sports competition.

In addition to working in one or more of these areas, the nonprofit must also:

• Not benefit a single individual or stakeholder in the organization through its profits or earnings.
• Use any profits earned for tax-exempt purposes only.
• Operate only for tax-exempt purposes.
• Restrict its political and lobbying activities.

Private foundations follow a lower ceiling than public charities. Cash gifts to a private foundation are deductible up to 30% of the donor’s AGI, not 60%, and gifts of appreciated property to a private foundation are capped at 20%. If your organization is structured as a private foundation rather than a public charity, this is the number your major donors’ accountants will ask about.

With these conditions in mind, let us explore the 501c3 fundraising guidelines for nonprofits.

Fundraising rules for nonprofit organizations: Where you have to register

Getting your 501(c)(3) determination letter from the IRS makes you tax-exempt at the federal level. It does not give you permission to ask anyone for money.

States grant that permission. Around 40 states require charitable solicitation registration before you can legally ask a resident of that state to donate, and the filing usually goes through the Attorney General’s office or the Secretary of State. Most organizations discover this after they’ve already been fundraising for a year.

The trigger is where your donor lives, not where your office is. A nonprofit incorporated in Ohio running a national email appeal solicits in every state it emails, and a “Donate” button on a public website solicits everywhere.

What registration typically asks for:

• Your IRS determination letter
• Articles of incorporation and bylaws
• Your most recent Form 990
• Audited financial statements, once you cross a state’s revenue threshold
• Names of your officers and directors
• Details of any professional fundraiser you’ve contracted

Registration isn’t one-and-done. Most states require annual renewal, and the revenue thresholds that trigger an audit requirement vary widely between them.

Two things worth flagging before you file anywhere. Some states exempt small organizations below a revenue floor, so check whether you actually need to register before you spend the filing fee. And if you use a professional fundraising consultant, several states require them to register separately, with your organization named on their filing.

501c3 donation rules

We’ll cover the details of five 501 (c) (3) fundraising regulations that every nonprofit must follow. 

Tax deductibility

The biggest perk of 501(c)(3) status is that donors can deduct their donations when filing their returns. This encourages more contributions to a 501c3 fundraising initiative. For cash gifts to a public charity, donors can deduct up to 60% of their adjusted gross income. That ceiling used to be temporary. The One Big Beautiful Bill Act made it permanent, so donors no longer need to plan for it to expire.

There’s no cap on how much someone can give you. The cap is on how much of it they can deduct.

To remain tax-exempt, organizations must operate solely for their exempt purposes. For example, if the organization works toward animal welfare, it must focus only on related activities.

While some income from other sources is allowed, a substantial portion of the organization’s income cannot come from those sources. A public charity can only operate with a heavy focus on its tax-exempt purposes.

If your organization brings in $1,000 or more of gross income from a trade or business that isn’t substantially related to your mission, you’ll need to file Form 990-T and pay tax on that income. The exemption covers your mission. It doesn’t cover the coffee cart.

• A trade or business
• Regularly conducted
• Not substantially related to the charity in terms of its tax-exempt purposes.

Read Also: The Biggest Charity Fundraising Mistake You Can Make 

Cash and Non-Cash Donations

501c3 organizations can receive cash and non-cash payments.

Under cash payments, they can accept donations in the form of:

• Money,
• Checks,
• Credit card payments,
• Electronic fund transfers.

Non-cash donations include:

• Property,
• Motor vehicles,
• Volunteer time
• Goods 
• Securities

Non-cash donations are subject to additional rules. You may have to provide additional substantiation for specific donations. We cover them below:

Donated property

If an organization sells, exchanges, or disposes of the donated property within three years of acquisition, it must fill out form 8282, the donee information return form. 

However, if the property’s value is less than $500 or if it is distributed for charity purposes, you may not have to fill out form 8282.

Publicly traded securities

These non-cash assets, including stocks, bonds, exchange-traded funds (ETFs), and mutual funds, are generally donated to charity since the transfer is easy. Donors avoid capital gains tax by upto 20% by donating these assets. 

However, as your legal advisor would suggest, additional attestation applies to these donations.

Charitable property deductions

Donors donating the property to charity organizations must provide a qualified appraisal to substantiate any charitable deduction. They can fill out form 8283 for the same. This requirement is mandatory if the property value exceeds $5000. 

Additionally, if the non-cash asset is worth more than $500, the donor must complete form 8283 and provide their income tax return. 

If a donor donates property that is still in debt, it complicates the process of receiving the gift. Such a transaction is considered a bargain sale, and the property’s equity will receive a charitable deduction. A donor must, however, be very careful when donating such a property, as it could accelerate the repayment timelines of the amount due.

Motor vehicles

Special rules apply to the donation of motor vehicles to 501c3 fundraising initiatives. 

Here are some rules to remember when soliciting motor vehicle donations:

• A charity must not use motor vehicles in a manner that benefits private stakeholders. It must be used to further their tax-exempt purposes only. 
• If you hire a for-profit entity to operate your vehicle donation program, they must establish an agency relationship with the charity. 
• A written acknowledgment of the donation must be attested if the value of the motor vehicle is above $500. This should include the donor’s name, tax identification number, vehicle identification number, and contribution date. In addition to that, they must also include any of the following statements: 

• A statement of good faith in case the charity provided something in exchange for the donation,
• A statement if no goods and services were exchanged, 
• and a statement that the goods and services exchanged were intangible religious benefits if that is the case.

You can refer to this document by the IRS for the entire section of special rules that apply to motor vehicle donations: https://www.irs.gov/pub/irs-pdf/p4302.pdf 

These are 501c3 donation rules for non-cash donations.

Donor substantiation

Donor substantiation laws require nonprofits to provide written substantiation of contributions over $250. If donors do not receive these documents, they cannot claim deductions when filing their income tax returns, and the charity may be penalized.

501c3 fundraising guidelines highlight that if the charity exchanged goods or services in exchange for the donation, this must be mentioned in the written acknowledgment. 

Although donors are responsible for obtaining substantiation, charities must comply to help donors claim charitable deductions. 

Volunteers’ unreimbursed expenses for a charitable organization are also considered charitable deductions. These could include:

• Travel expenses such as stay and tickets,
• Commuting expenses,
• Parking and tolls.

Fair market value

Nonprofits use fair market value (FMV) to determine the value of donated items. They use it for non-cash donations, especially property and real estate. 

Donors then use this value to file for tax deductions. Many times, small nonprofits find it difficult to determine the FMV due to:

• Finding the process tedious and time-consuming.
• Executives fail to understand the importance of maintaining an FMV document.
• The required disclosure is too lengthy and takes up much of the tax acknowledgment letter.

However, determining FMV is imperative under IRS rules and is only fair to donors.

Ineligible contributions

Certain types of donations are ineligible for tax deductions. These donations include:

• Political contributions – 501c3 organizations are prohibited from contributing towards political activities. These contributions will not uphold your 501c3 status.
• Contributions designated to individual – Charitable organizations should only work towards their tax-exempt purposes. Any donations made to an individual person may be ineligible. 
• Payment for membership dues – The IRS considers membership dues as unrelated business income. Any income earned through contributions in this manner will be taxable.

Read Also: Write The Easiest Fundraising Cold Call Script (With Samples) 

What happens if you break 501c3 fundraising rules

Every competitor ranking above this page on compliance queries has a section like this. Ours doesn’t, and it’s the question a nervous finance director is actually asking.

The consequences run in rough order of severity:

• A question at audit. Most compliance issues surface here first, and documentation is usually what settles them. This is the argument for writing down why a salary is reasonable before anyone asks.
• Tax on income you thought was exempt. Unrelated business income gets taxed whether or not you filed for it.
• An excise tax on an individual. Under Section 4958, an insider who received an excess benefit pays a penalty personally. Board members who approved it can be liable too.
• Loss of exempt status. The one that ends organizations. You become liable for tax on revenue earned while non-compliant, and gifts your donors made during that period may no longer be deductible.

That last consequence is the one worth sitting with, because it doesn’t land on you alone. It lands on every donor who trusted you with a gift and claimed it on their return.

The way forward

None of what’s in this article is complicated on its own. What makes 501c3 fundraising rules feel overwhelming is that they touch everything at once: what you spend, what you tell donors, where you’re allowed to ask, and what happens if any of it slips.

The good news is that almost every consequence above starts with the same fix: write it down before someone asks. Document why a salary is reasonable. Keep the receipt for the $500 property donation. Register in the states where you actually solicit, not just the one where you’re incorporated. None of that is hard. It’s just easy to skip when you’re focused on the mission instead of the paperwork.

The 2026 changes are actually a reason for optimism here, not just another thing to track. Your standard-deduction donors have a reason to give that they didn’t have last year. That’s worth building into your next appeal, not just filing away as a tax footnote.

If you’re ready to put some of this into practice, our fundraising planning template walks through the steps, the checklist, and the timeline for your next campaign. And if text-to-donate or recurring giving is part of how you plan to reach those newly motivated small donors, CallHub’s fundraising tools are worth a look.

FAQs about 501c3 fundraising 

We answer common FAQs about 501c3 fundraising regulations.

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Shiksha Sharma

Shiksha Sharma is a Content Marketer with over 5 years of experience in the B2B SaaS industry. She has extensively written about software that helps organizations work easily. Her areas of research include politics, nonprofits, advocacy, and business.