Is it true that "a business-trip daily allowance is tax-free no matter how much is paid"?

“A daily allowance for business trips is tax-free, so apparently no tax is charged no matter how much is paid.” Have you ever heard something like this from a business owner whose employees travel a lot, or from someone in charge of the accounts?

Four tax terms, explained first

Here are plain-language explanations of the terms used in this article.

• Daily allowance (nittō) = money for meals and personal incidental expenses during a business trip. Separate from hotel and transportation costs, it is paid as a fixed amount per day.
• Tax-free (hikazei) = not treated as salary, so no tax is charged.
• Travel expense rules (ryohi kitei) = company rules that set how much is paid for transportation, accommodation and daily allowances on business trips.
• Taxed as salary = even if it is called a daily allowance, income tax is charged if it is in substance regarded as salary.

Conclusion

The answer is “conditional.” A business-trip daily allowance is tax-free, but once the condition “no matter how much is paid” is attached, the claim becomes false. Below, we look at the basis for this step by step.

Why a business-trip daily allowance is tax-free

The basis for business-trip travel expenses being tax-free is Article 9, paragraph 1, item 4 of the Income Tax Act. It lists the following as income on which income tax is not imposed.

給与所得を有する者が勤務する場所を離れてその職務を遂行するため旅行をし、若しくは転任に伴う転居のための旅行をした場合又は就職若しくは退職をした者若しくは死亡による退職をした者の遺族がこれらに伴う転居のための旅行をした場合に、その旅行に必要な支出に充てるため支給される金品で、その旅行について通常必要であると認められるもの［1］

Reference translation (unofficial): Money or goods paid to cover expenditure necessary for travel, where a person earning employment income travels away from the place of work to perform his or her duties, or travels to move residence due to a transfer, or where a person who has taken up or left employment, or the bereaved family of a person who left employment due to death, travels to move residence accordingly, and which are recognized as normally necessary for that travel.

(Excerpt from the provision on tax-exempt income)

In plain terms: when an employee travels on business, money or goods paid by the company that are “normally necessary for that travel” are not subject to income tax.

That is the general rule. So how far does “normally necessary” extend? This is where the standard for the amount of the daily allowance comes in.

Where is the standard for “how much”?

To put the conclusion first: the government has not set an amount such as “tax-free up to X yen.” Instead, Basic Circular on Income Tax 9-3 sets out the standard for judging how far the tax-free range extends.

法第9条第1項第4号の規定により非課税とされる金品は、同号に規定する旅行をした者に対して使用者等からその旅行に必要な運賃、宿泊料、移転料等の支出に充てるものとして支給される金品のうち、その旅行の目的、目的地、行路若しくは期間の長短、宿泊の要否、旅行者の職務内容及び地位等からみて、その旅行に通常必要とされる費用の支出に充てられると認められる範囲内の金品をいうのであるが、当該範囲内の金品に該当するかどうかの判定に当たっては、次に掲げる事項を勘案するものとする。（1）その支給額が、その支給をする使用者等の役員及び使用人の全てを通じて適正なバランスが保たれている基準によって計算されたものであるかどうか。（2）その支給額が、その支給をする使用者等と同業種、同規模の他の使用者等が一般的に支給している金額に照らして相当と認められるものであるかどうか。［2］

Reference translation (unofficial): Money or goods made tax-exempt under Article 9, paragraph 1, item 4 of the Act means, among the money or goods paid by an employer, etc. to a person who made travel prescribed in that item to cover expenditure such as fares, accommodation charges and relocation expenses necessary for the travel, those within the range recognized as being used for expenses normally required for the travel in light of its purpose, destination, route or length of period, whether accommodation is required, and the duties and position of the traveler. In judging whether money or goods fall within that range, the following matters are to be taken into account: (1) whether the amount paid has been calculated under a standard that maintains an appropriate balance across all officers and employees of the paying employer, etc.; (2) whether the amount paid is recognized as reasonable in light of the amounts generally paid by other employers, etc. of the same industry and size as the paying employer, etc.

In plain terms: of business-trip travel expenses, only the portion used for costs “normally necessary for that travel,” judged from the nature of the trip (destination, number of days, whether an overnight stay is needed, position and so on), is tax-free. In judging whether an amount is within that range, the following two factors are considered.

1. Balance within the company: whether the amount is calculated under a standard that keeps an appropriate balance across all of the company’s officers and employees.
2. Comparison with outside levels: whether the amount is reasonable in light of what other companies of the same industry and size generally pay.

There are two questions to tell them apart. The first is “Would other employees of the company receive the same amount for the same trip?” If so, it is an institutionalized daily allowance. If the company is simply cutting the person’s own salary and handing it over under the name “daily allowance,” it is taxed as salary. The second is “Is the amount too high compared with companies of the same industry and size?” Here you need to be able to say it is “not too high.”

What is a reasonable guide? A sample from the national system

“I understand the standard, but where can I see actual amounts?” One published sample you can use is the travel expense system for national public servants.

Article 11 of the Order for Enforcement of the Act on Travel Expenses of National Public Servants, etc. sets the “incidental expenses” (the part corresponding to a so-called daily allowance) for business trips involving an overnight stay, as follows.

宿泊手当は、宿泊を伴う旅行に必要な諸雑費に充てるための費用とし、その額は、通常要する費用の額を勘案して財務省令で定める一夜当たりの定額とする。［3］

Reference translation (unofficial): The accommodation allowance is an amount to cover the incidental expenses necessary for travel involving an overnight stay, and its amount is a fixed amount per night set by Ministry of Finance ordinance, taking into account the amount of expenses normally required.

That fixed amount per night is set in Appended Table 3 of the Ministry of Finance ordinance (Rules on Payment of Travel Expenses of National Public Servants, etc.), as follows［4］.

Under the old national system, the daily allowance consisted of transportation costs for getting around the destination (roughly half) and incidental expenses (the other half)［7］. Under the new system from April 2025 (Reiwa 7), transportation for getting around is reimbursed at actual cost, and incidental expenses are paid only for trips involving an overnight stay, as an “accommodation allowance” of 2,400 yen per night (uniform nationwide)［3］［4］. The effective date is April 1, 2025 (Article 1 of the supplementary provisions of the Enforcement Order［3］). The overall picture of the new system is summarized in the Ministry of Finance’s “On the revision of the travel expense system for national public servants, etc.”［8］. This also shows that a daily allowance is “an advance payment for local incidental expenses not covered by hotel or transportation costs.”

There are detailed rules as well. If the accommodation charge includes breakfast or dinner, the fixed amount is reduced to two-thirds, and if it includes both breakfast and dinner, to one-third［4］. The accommodation charge itself is paid at actual cost (with an upper limit)［4］.

In other words, even the national system sets incidental expenses at a fixed 2,400 yen per night. This one line shows that paying a daily allowance of 10,000 or 20,000 yen per day on top of hotel and transportation costs is well above the national sample. However, this 2,400 yen is an allowance for trips involving an overnight stay; it does not indicate the going rate for a daily allowance on day trips. It does not mean the private sector has a cap of “up to 2,400 yen,” nor that this amount is a safe zone for tax exemption. We show it only as a published, real figure for getting a feel for “normally necessary incidental expenses.”

There is one more trend you can read from this revision. Transportation and accommodation moved to reimbursement at actual cost, and in the old “daily allowance,” the transportation part also became actual cost, leaving only incidental expenses, shrunk down to a fixed “accommodation allowance.” Public servants’ travel expenses appear to be shifting from a fixed-amount method, where amounts are set in advance and paid, toward an actual-cost method, where the costs actually incurred are paid［7］［8］. The fixed daily allowance remains only for “incidental expenses that cannot be settled at actual cost.” When reviewing a private company’s travel expense rules, the same direction of thinking (narrowing the scope of the fixed daily allowance and settling everything else at actual cost) is a shortcut to making the tax-free range easier to explain.

How much do private companies pay?

There is also published data that backs up “private-sector levels.” In a questionnaire by the Ministry of Finance asking private companies about their business-trip travel expense rules (551 companies responding, report of August 2023 (Reiwa 5)), the results for daily allowances on domestic business trips were as follows［5］.

Here is how to read it. Among companies that pay a daily allowance, the daily amount is centered in the 2,000-yen range. It rises by category as position goes up, and 15.0% of companies set the daily allowance for their highest category at 5,000–9,999 yen［5］. The national accommodation allowance (2,400 yen per night) and the private-sector average daily allowance (2,621 yen per day) are in different units, but both are in the range of a few thousand yen.

That said, this does not mean “you can pay only up to 2,621 yen.” Each company sets the amount of its daily allowance in its travel expense rules. Whether it is tax-free or salary depends on whether the amount set is reasonable in light of the two factors in Basic Circular 9-3 (balance within the company, and the level at other companies of the same industry and size)［2］.

In addition, a private think tank (Sanro Research Institute, Inc.) conducted a fiscal 2025 survey of business-trip travel expenses (3,000 ordinary companies surveyed, 161 responding; shown below for reference only as a private survey), which gives real figures for the content of travel expenses. For domestic overnight trips, the accommodation charge (paid as a fixed amount) for ordinary employees was 8,878 yen uniform across all regions, and 11,262 yen in the highest-cost areas such as major metropolitan areas. Where accommodation is paid at actual cost, the upper limit for ordinary employees was 10,490 yen to 12,889 yen［6］. Meanwhile, the daily allowance per day on overseas trips (ordinary employees, in yen) was 4,765 yen for China, 4,841 yen for Southeast Asia and 5,199 yen for North America［6］. In light of rising prices, 14.9% of companies had increased the daily allowance and 31.1% the accommodation charge in the last three years［6］. Published real figures like these serve as a guide when thinking about the tax-free range.

When is it taxed as salary?

Conversely, in what patterns is a daily allowance taxed as salary? We organize them along the two factors in Basic Circular 9-3［2］.

• Payment that is not institutionalized: there are no travel expense rules, and the amount is decided ad hoc for each trip. Because the standard is not shared within the company, it cannot be said to be calculated under “a standard that maintains an appropriate balance.”
• Renaming the person’s own salary: part of the base salary is paid under the name “daily allowance.” If the same amount is paid even in months with no business trips, it cannot be called incidental expenses necessary for travel; it is salary.
• An amount out of balance within the company: only people in a certain position receive a daily allowance far above other employees on the same kind of trip. This falls outside the standard of “balance within the company.”
• An amount far above the level of the same industry and size: an amount well beyond the general level for a daily allowance for incidental expenses. Compared with outside levels, it cannot be called reasonable.

On the other hand, the safe form is simple. Create travel expense rules in which fares and accommodation are paid at actual cost (or settled in a similar way) and the daily allowance is set as a fixed amount per day, and pay everyone using the same calculation. Having rules makes it easier to show that there is balance within the company. The amount itself is judged by comparison with the level at other companies of the same industry and size. Note that if the range is exceeded, only the excess portion is taxed as salary. The portion within the range is not all taxed. This treatment is as set out in Basic Circular on Income Tax 9-4, which provides that “the amount of that excess portion” is included in the amount of income received［2］.

What to do

Summary

“A business-trip daily allowance is tax-free no matter how much is paid” is conditional.

• A business-trip daily allowance is tax-free within the range normally necessary for that travel［1］［2］.
• In judging the range, two factors are considered: (1) balance within the company and (2) the level at other companies of the same industry and size［2］.
• The government does not set an upper limit on the tax-free amount, but the national system’s sample is 2,400 yen per night［3］［4］, and a survey of private companies found an average of 2,621 yen per day［5］. Any portion exceeding what is normally necessary is taxed as salary, even if it is called a daily allowance.

It is the company itself that sets the standard for the amount. However, the amount written in the rules does not automatically become tax-free. It is judged on two points: that the same standard is applied within the company, and that the amount is not too high compared with other companies of the same industry and size.

Sources

• ［1］Income Tax Act, Article 9, paragraph 1, item 4 (e-Gov Law Search, Japanese)　Checked: 2026-10-09
• ［2］Basic Circular on Income Tax 9-3 and 9-4 — NTA “Basic Circular on Income Tax,” provisions relating to Article 9 (Japanese)　Checked: 2026-10-09
• ［3］Order for Enforcement of the Act on Travel Expenses of National Public Servants, etc., Article 11 (e-Gov Law Search, Japanese)　Checked: 2026-10-09
• ［4］Rules on Payment of Travel Expenses of National Public Servants, etc., Article 14 and Appended Table 3 (e-Gov Law Search, Japanese)　Checked: 2026-10-09
• ［5］Ministry of Finance, report on the “Questionnaire on business-trip travel expense rules, etc. at private companies” (August 2023) (Japanese)　Checked: 2026-10-09
• ［6］Sanro Research Institute, Inc., press release on the “Fiscal 2025 survey of domestic and overseas business-trip travel expenses” (2025-12-12; 3,000 ordinary companies surveyed, 161 responding) (Japanese)　Checked: 2026-10-09　*This is a private survey, not a law or an official standard.
• ［7］Policy for improving travel expense business processes (September 8, 2023; decided by the Council for Promoting Efficiency of Travel Expense Operations; Prime Minister’s Office) (Japanese)　Checked: 2026-10-09
• ［8］Ministry of Finance, “On the revision of the travel expense system for national public servants, etc.” (Japanese)　Checked: 2026-10-09

Note: This article is based on laws and official information as of October 10, 2026. It is a translation of the Japanese original; if the two differ, the Japanese version prevails. Quotations from laws and official sources are given in the original Japanese, followed by unofficial reference translations. Sources are based on laws (e-Gov) and official materials of the NTA, the Ministry of Finance and the Cabinet Secretariat, all in Japanese; private surveys are marked with *. If a correction is needed after publication, a correction record will be added at the end of this article (Correction policy).