Conventions: Business Travel and Vehicle Expenses (2025 IRS Guide)

This guide covers “Conventions” within business travel and vehicle expenses. The following material presents the IRS treatment of this topic, including the qualifications, exceptions, and examples in the source section. Read the rules alongside the facts of your own situation before deciding what to report, deduct, or document.

Adapted from Publication 463 (2025), Travel, Gift, and Car Expenses, published by the Internal Revenue Service. This guide retains the source edition’s years, amounts, deadlines, and examples. It is guidance for that edition, not a statement that the same figures apply to every tax year.

Context for these rules

Once you have determined that you are traveling away from your tax home, you can determine what travel expenses are deductible.

You can deduct ordinary and necessary expenses you have when you travel away from home on business. The type of expense you can deduct depends on the facts and your circumstances.

Table 1-1 summarizes travel expenses you may be able to deduct. You may have other deductible travel expenses that aren’t covered there, depending on the facts and your circumstances.

When you travel away from home on business, you must keep records of all the expenses you have and any advances you receive from your employer. You can use a log, diary, notebook, or any other written record to keep track of your expenses. The types of expenses you need to record, along with supporting documentation, are described in Table 5-1 (see chapter 5).

Conventions

You can deduct your travel expenses when you attend a convention if you can show that your attendance benefits your trade or business. You can’t deduct the travel expenses for your family.

If the convention is for investment, political, social, or other purposes unrelated to your trade or business, you can’t deduct the expenses.

Caution:

Your appointment or election as a delegate doesn’t, in itself, determine whether you can deduct travel expenses. You can deduct your travel expenses only if your attendance is connected to your own trade or business.

Convention agenda.

The convention agenda or program generally shows the purpose of the convention. You can show your attendance at the convention benefits your trade or business by comparing the agenda with the official duties and responsibilities of your position. The agenda doesn’t have to deal specifically with your official duties and responsibilities; it will be enough if the agenda is so related to your position that it shows your attendance was for business purposes.

Conventions Held Outside the North American Area

You can’t deduct expenses for attending a convention, seminar, or similar meeting held outside the North American area unless:

• The meeting is directly related to the active conduct of your trade or business, and

• It is as reasonable to hold the meeting outside the North American area as within the North American area. See Reasonableness test, later.

If the meeting meets these requirements, you must also satisfy the rules for deducting expenses for business trips in general, discussed earlier under Travel Outside the United States.

North American area.

The North American area includes the following locations.

The North American area also includes U.S. islands, cays, and reefs that are territories of the United States and not part of the 50 states or the District of Columbia. See Revenue Ruling 2016-16, available at IRS.gov/irb/2016-26_IRB#RR-2016-16, for more information.

Reasonableness test.

The following factors are taken into account to determine if it was as reasonable to hold the meeting outside the North American area as within the North American area.

• The purpose of the meeting and the activities taking place at the meeting.

• The purposes and activities of the sponsoring organizations or groups.

• The homes of the active members of the sponsoring organizations and the places at which other meetings of the sponsoring organizations or groups have been or will be held.

• Other relevant factors you may present.

Cruise Ships

You can deduct up to $2,000 per year of your expenses of attending conventions, seminars, or similar meetings held on cruise ships. All ships that sail are considered cruise ships.

You can deduct these expenses only if all of the following requirements are met.

1. The convention, seminar, or meeting is directly related to the active conduct of your trade or business.

2. The cruise ship is a vessel registered in the United States.

3. All of the cruise ship’s ports of call are in the United States or in territories of the United States.

4. You attach to your return a written statement signed by you that includes information about:

   1. The total days of the trip (not including the days of transportation to and from the cruise ship port),

   2. The number of hours each day that you devoted to scheduled business activities, and

   3. A program of the scheduled business activities of the meeting.

5. You attach to your return a written statement signed by an officer of the organization or group sponsoring the meeting that includes:

   1. A schedule of the business activities of each day of the meeting, and

   2. The number of hours you attended the scheduled business activities.

Using the guidance

Keep the documents that establish the dates, amounts, and circumstances described above. References to other chapters, forms, worksheets, or earlier and later sections refer to the linked IRS publication. Check the full publication and its updates before relying on a rule for a different tax year or a situation not addressed here.

Sources and further reading

• Publication 463 (2025), Travel, Gift, and Car Expenses: Travel — What Travel Expenses Are Deductible? — Conventions — Internal Revenue Service; 2025 edition.

The cited U.S. government text is in the public domain. Source accessed October 28, 2026. Fynoptic has organized this material for educational use and is independent of, and not endorsed by, the IRS.