How to account for a company seminar: practical tax guide

A company seminar can be a great investment in management, cohesion and strategy. But from an accounting and tax perspective, it is not something to improvise. In 2026, many executives still treat a seminar either as just one large expense claim, or avoid useful events altogether because they are afraid of getting the accounting wrong. Both approaches are mistakes.

The real issue is not whether a seminar "goes through" or not. The real issue is whether you can demonstrate:

• ▸a genuine business purpose;
• ▸clear expense tracking;
• ▸the real nature of each expense item;
• ▸whether VAT is recoverable or not;
• ▸whether any benefit-in-kind risk exists;
• ▸and whether the overall package remains proportionate.

This guide explains how to account for a seminar properly, how to separate expense categories, how to handle VAT and what documentation to keep.

The term "seminar" is often used for very different events:

• ▸executive seminar;
• ▸sales seminar;
• ▸team building;
• ▸annual meeting;
• ▸kick-off;
• ▸internal convention;
• ▸training session;
• ▸mixed work-and-leisure trip.

From a tax standpoint, the logic differs depending on whether the event is:

• ▸mainly professional;
• ▸mixed but reasonable;
• ▸or mainly recreational and comfort-driven.

The key question

Before booking anything, management should be able to answer:

• ▸what is the professional objective?
• ▸who is attending, and why?
• ▸what work agenda is planned?
• ▸why is the venue coherent?
• ▸how will expenses be tracked and split?

The more clearly you can show the business purpose, the stronger the expense file.

1. Transport

This includes:

• ▸train;
• ▸plane;
• ▸taxi / ride-hailing;
• ▸car rental;
• ▸mileage reimbursement;
• ▸tolls and parking.

2. Accommodation

Hotels and similar overnight stays need to be linked clearly to:

• ▸the people attending;
• ▸the dates;
• ▸the event;
• ▸the professional purpose.

3. Catering

Breakfast, lunch, dinner, cocktail and coffee breaks do not all follow the exact same treatment. They must be analysed in context.

4. Venue and event services

This is usually the most straightforward professional block:

• ▸room rental;
• ▸AV equipment;
• ▸facilitation;
• ▸external speakers;
• ▸coaching;
• ▸event logistics.

5. Ancillary activities

This is the sensitive zone:

• ▸sport activities;
• ▸spa access;
• ▸leisure excursions;
• ▸gifts during the event;
• ▸premium options with no clear business use.

The basic principle is familiar: an expense is deductible if it is incurred in the interest of the business and properly supported.

Expenses usually deductible

A seminar is generally deductible if:

• ▸it has a clear professional purpose;
• ▸attendees have a real business link with the company;
• ▸invoices are available;
• ▸the amounts remain proportionate;
• ▸the event is not primarily personal or excessive.

This often covers:

• ▸venue rental;
• ▸employee or executive transport;
• ▸accommodation;
• ▸catering;
• ▸business facilitation or training services;
• ▸logistics.

Expenses that become sensitive

Risk rises when:

• ▸the venue is clearly disproportionate;
• ▸the leisure aspect dominates;
• ▸the business agenda is almost non-existent;
• ▸spouses or unrelated third parties are included;
• ▸part of the spending is clearly personal-comfort spending.

Expert note

The classic mistake is not organising a good seminar. It is forgetting to document its purpose. Without an agenda, attendee list, cost split and overall coherence, the expense file becomes far more fragile.

VAT is often the most misunderstood part.

The principle

To recover VAT on business purchases, you generally need:

• ▸a business purpose;
• ▸a compliant invoice;
• ▸and VAT that is legally deductible for the relevant category.

Categories where VAT may often be reviewed positively

Subject to the legal rules and the exact nature of the service:

• ▸room rental;
• ▸event-service providers;
• ▸some logistics services;
• ▸certain transport-related items.

Accommodation: a high-vigilance area

VAT on accommodation is frequently a sensitive area. Many businesses either recover too much or too little. The invoice type and legal framework matter.

Catering

Catering also requires careful analysis. It should never be treated automatically.

The right reflex

The best practice is to:

• ▸centralise all invoices;
• ▸avoid fragmented payments without support;
• ▸review sensitive lines with your accountant;
• ▸distinguish between deductible expense and deductible VAT.

A seminar is not only a tax issue. It can also become a payroll/social issue if some benefits primarily serve the participant personally.

When risk appears

Risk increases when:

• ▸the event mainly benefits the attendee personally;
• ▸spending is highly individualised;
• ▸the luxury level is disproportionate;
• ▸relatives are paid for;
• ▸optional comfort services dominate.

Cases to watch closely

• ▸private extension of the stay;
• ▸room upgrades with no justification;
• ▸individual leisure spending;
• ▸coverage of spouses or non-business guests;
• ▸gifts outside a properly documented framework.

The right reflex is not to push everything into one vague expense account. Good accounting requires clear splitting.

Recommended split

We generally recommend separating:

• ▸transport;
• ▸accommodation;
• ▸catering;
• ▸venue and event services;
• ▸ancillary costs;
• ▸any non-deductible or personal items if necessary.

This improves:

• ▸financial readability;
• ▸VAT treatment;
• ▸tax defensibility;
• ▸budget control.

The ideal supporting file

To secure the file, keep:

• ▸quote and contract where applicable;
• ▸detailed agenda;
• ▸attendee list;
• ▸detailed invoices;
• ▸internal approval note;
• ▸explanation of the business purpose;
• ▸analytical split.

The more expensive the seminar, the cleaner this file should be.

Take a consulting SME in Paris organising a 2-day executive seminar for 12 attendees.

Budget

• ▸room rental and logistics: EUR 3,200 excl. VAT;
• ▸accommodation: EUR 2,880 incl. VAT;
• ▸catering: EUR 1,560 incl. VAT;
• ▸transport: EUR 1,140 incl. VAT;
• ▸team-building activity: EUR 1,200 incl. VAT.

Total budget: EUR 9,980.

Best practice

The company keeps:

• ▸a detailed agenda;
• ▸the attendee list;
• ▸the objectives of the seminar;
• ▸split invoices;
• ▸an internal memo explaining venue choice and activity rationale.

Result

The file is readable. Useful items are split properly. VAT-sensitive items are reviewed line by line. The team-building activity remains proportionate in the overall package. The expense is much stronger than if everything had been paid in a scattered way on several bank cards with incomplete support.

• ▸Booking everything into one vague expense account.
• ▸Recovering VAT without analysing categories.
• ▸Forgetting the agenda and attendee list.
• ▸Mixing personal and company spending.
• ▸Choosing a clearly disproportionate service level.
• ▸Inviting non-business attendees without a clear role.
• ▸Paying several items without compliant invoices.
• ▸Ignoring the payroll angle when individual benefits are obvious.

Accounting properly for a company seminar in 2026 requires more than one hotel invoice. You need a real logic:

• ▸professional in the purpose;
• ▸accounting-based in the split;
• ▸tax-aware on deductibility and VAT;
• ▸payroll-aware on benefit-in-kind issues.

The key takeaways are simple:

• ▸a seminar can be fully deductible if it genuinely serves the company;
• ▸VAT must be reviewed line by line;
• ▸accommodation, catering and ancillary activities require extra care;
• ▸documentation is a large part of tax security;
• ▸a modern accounting firm should help you arbitrate, not only book entries.

Hayot Expertise, based in Paris 8, supports you end to end. Request your first complimentary discovery meeting to secure your seminar accounting, professional expenses and tax treatment.

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