An AI / ML Engineer earning the median salary of ¥11.3M in Japan takes home approximately ￥8,088,516/year (￥674,043/month) after national income tax, reconstruction surtax, resident tax, and employee social insurance, using 2026 rates.
2026 median salary for each level in Japan, and what it leaves after national income tax, reconstruction surtax, resident tax, and employee social insurance. Single employee, Tokyo standard rates, under 40. 2026 rates.
| Level | Gross / year | Take-home / year | Per month | Effective rate |
|---|---|---|---|---|
| Junior | ￥7,281,000 | ￥5,491,806￥457,651/mo | ￥457,651 | 24.6% |
| Mid-level | ￥10,975,000 | ￥7,909,445￥659,120/mo | ￥659,120 | 27.9% |
| Senior | ￥15,019,000 | ￥10,256,048￥854,671/mo | ￥854,671 | 31.7% |
| Lead / Principal | ￥19,656,000 | ￥12,806,811￥1,067,234/mo | ￥1,067,234 | 34.8% |
The biggest pay step is Senior to Lead / Principal: ￥4,637,000 more a year before tax, of which ￥2,550,764 reaches take-home. 45% of that raise goes to national income tax, reconstruction surtax, resident tax, and employee social insurance, against an average 32% on the Senior salary, because the extra pay is taxed at the top of your bands rather than spread across all of them.
Around the headline median, the middle half of AI / ML Engineer salaries in Japan run from ￥10,678,000 to ￥11,708,000 a year, which is ￥7,718,323 to ￥8,370,003 after national income tax, reconstruction surtax, resident tax, and employee social insurance.
The table above uses the AI / ML Engineer median. Enter your own gross salary below for a precise figure.
Annual take-home
￥8,088,516
Monthly take-home
￥674,043
Effective deduction rate
28.2%
National income tax
￥1,055,074
Reconstruction surtax
2.1% of national income tax
￥22,157
Resident tax
~10% (prefectural + municipal)
￥756,750
Health + pension + employment insurance
￥1,337,504
An AI / ML Engineer earning the median salary of ¥11.3M in Japan takes home approximately ￥8,088,516 per year (￥674,043 per month) after national income tax, reconstruction surtax, resident tax, and employee social insurance, using 2026 rates.
On a median AI / ML Engineer salary of ¥11.3M, the effective deduction rate (national income tax, reconstruction surtax, resident tax, and employee social insurance) is 28.2%, leaving ￥8,088,516 as take-home pay.
A senior AI / ML Engineer in Japan earns a median ￥15,019,000 a year and takes home approximately ￥10,256,048 (￥854,671 per month) after national income tax, reconstruction surtax, resident tax, and employee social insurance, an effective rate of 31.7%.
A junior AI / ML Engineer in Japan earns a median ￥7,281,000 a year and takes home approximately ￥5,491,806 (￥457,651 per month) after national income tax, reconstruction surtax, resident tax, and employee social insurance, an effective rate of 24.6%.
The biggest pay step is Senior to Lead / Principal: ￥4,637,000 more a year before tax, of which ￥2,550,764 reaches take-home. 45% of that raise goes to national income tax, reconstruction surtax, resident tax, and employee social insurance, against an average 32% on the Senior salary, because the extra pay is taxed at the top of your bands rather than spread across all of them.
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