An Algorithmic Trading Systems Engineer earning the median salary of ¥12.2M in Japan takes home approximately ￥8,694,844/year (￥724,570/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 | ￥7,956,000 | ￥5,922,943￥493,579/mo | ￥493,579 | 25.6% |
| Mid-level | ￥12,025,000 | ￥8,569,180￥714,098/mo | ￥714,098 | 28.7% |
| Senior | ￥16,710,000 | ￥11,156,301￥929,692/mo | ￥929,692 | 33.2% |
| Lead / Principal | ￥21,903,000 | ￥14,065,703￥1,172,142/mo | ￥1,172,142 | 35.8% |
The biggest pay step is Senior to Lead / Principal: ￥5,193,000 more a year before tax, of which ￥2,909,402 reaches take-home. 44% of that raise goes to national income tax, reconstruction surtax, resident tax, and employee social insurance, against an average 33% 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 Algorithmic Trading Systems Engineer salaries in Japan run from ￥11,588,000 to ￥12,723,000 a year, which is ￥8,294,605 to ￥9,007,747 after national income tax, reconstruction surtax, resident tax, and employee social insurance.
The table above uses the Algorithmic Trading Systems Engineer median. Enter your own gross salary below for a precise figure.
Annual take-home
￥8,694,844
Monthly take-home
￥724,570
Effective deduction rate
28.9%
National income tax
￥1,264,728
Reconstruction surtax
2.1% of national income tax
￥26,559
Resident tax
~10% (prefectural + municipal)
￥847,904
Health + pension + employment insurance
￥1,390,965
An Algorithmic Trading Systems Engineer earning the median salary of ¥12.2M in Japan takes home approximately ￥8,694,844 per year (￥724,570 per month) after national income tax, reconstruction surtax, resident tax, and employee social insurance, using 2026 rates.
On a median Algorithmic Trading Systems Engineer salary of ¥12.2M, the effective deduction rate (national income tax, reconstruction surtax, resident tax, and employee social insurance) is 28.9%, leaving ￥8,694,844 as take-home pay.
A senior Algorithmic Trading Systems Engineer in Japan earns a median ￥16,710,000 a year and takes home approximately ￥11,156,301 (￥929,692 per month) after national income tax, reconstruction surtax, resident tax, and employee social insurance, an effective rate of 33.2%.
A junior Algorithmic Trading Systems Engineer in Japan earns a median ￥7,956,000 a year and takes home approximately ￥5,922,943 (￥493,579 per month) after national income tax, reconstruction surtax, resident tax, and employee social insurance, an effective rate of 25.6%.
The biggest pay step is Senior to Lead / Principal: ￥5,193,000 more a year before tax, of which ￥2,909,402 reaches take-home. 44% of that raise goes to national income tax, reconstruction surtax, resident tax, and employee social insurance, against an average 33% 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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