A Generative AI / LLM Engineer earning the median salary of ¥11.6M in Japan takes home approximately ￥8,319,936/year (￥693,328/month) after national income tax, reconstruction surtax, resident tax, and employee social insurance, using 2026 rates.
Generative AI / LLM Engineer take-home pay across the salary range
Single employee, Tokyo standard rates, under 40. 2026 rates.
Entry (P25)
￥10,983,000
gross/year
Take-home
￥7,944,373
￥662,031/month
Total tax
￥3,038,627
27.7% effective rate
Breakdown
national income tax, reconstruction surtax, resident tax, and employee social insurance
Median
￥11,580,000
gross/year
Take-home
￥8,319,936
￥693,328/month
Total tax
￥3,260,064
28.2% effective rate
Breakdown
national income tax, reconstruction surtax, resident tax, and employee social insurance
Senior (P75)
￥12,048,000
gross/year
Take-home
￥8,614,348
￥717,862/month
Total tax
￥3,433,652
28.5% effective rate
Breakdown
national income tax, reconstruction surtax, resident tax, and employee social insurance
Adjust for your actual salary
The table above uses the Generative AI / LLM Engineer median. Enter your own gross salary below for a precise figure.
Annual take-home
￥8,319,936
Monthly take-home
￥693,328
Effective deduction rate
28.2%
National income tax
￥1,127,660
Reconstruction surtax
2.1% of national income tax
￥23,681
Resident tax
~10% (prefectural + municipal)
￥766,809
Health + pension + employment insurance
￥1,341,915
A Generative AI / LLM Engineer earning the median salary of ¥11.6M in Japan takes home approximately ￥8,319,936 per year (￥693,328 per month) after national income tax, reconstruction surtax, resident tax, and employee social insurance, using 2026 rates.
On a median Generative AI / LLM Engineer salary of ¥11.6M, the effective deduction rate (national income tax, reconstruction surtax, resident tax, and employee social insurance) is 28.2%, leaving ￥8,319,936 as take-home pay.
A senior Generative AI / LLM Engineer earning ¥12M (P75 of the salary range) takes home approximately ￥8,614,348 per year (￥717,862 per month) after national income tax, reconstruction surtax, resident tax, and employee social insurance, with an effective rate of 28.5%.
A junior Generative AI / LLM Engineer earning ¥11M (P25 of the salary range) takes home approximately ￥7,944,373 per year (￥662,031 per month) after national income tax, reconstruction surtax, resident tax, and employee social insurance, with an effective rate of 27.7%.
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