Custom ERP and billing, AI agents, web applications and SaaS for financial services and electronics businesses in Tokyo. Built by Flip Retail in Jaipur, India, and delivered remotely, with working software every two weeks.
National tax, e-invoicing and data rules, with sources: Japan guide. General information, not legal or tax advice. Last reviewed October 2026.
01 — Local economy
Business in Tokyo
Japan's megabanks MUFG, SMBC and Mizuho, the Tokyo Stock Exchange and general trading houses such as Mitsubishi Corporation and Mitsui & Co. make the capital the country's corporate and financial centre. Electronics groups such as Sony, Hitachi and NEC are headquartered here, small precision machine shops crowd Ota ward, and Nerima and Suginami host many of the animation studios behind Japan's anime industry.
Where software helps: Companies must issue qualified invoices carrying a registration number under the invoice system introduced in October 2023 and keep electronic transaction records in the form required by the Electronic Bookkeeping Act.
ERP and AI for financial services, electronics and professional services businesses in Tokyo
What we would build first for the industries Tokyo is known for.
Financial services & fintech
ERP
Loan and policy lifecycle tracking, reconciliations, commissions and regulatory reporting, with role-based access, maker-checker approvals and audit logs.
AI agent
A document agent that reads bank statements, payslips and IDs, extracts what underwriters need and flags inconsistencies for a person to check.
Time, billing and engagement management, with utilisation dashboards and document workflows, for firms that sell expertise by the hour or by the project.
AI agent
A knowledge agent that searches the firm's past work, templates and policies using retrieval-augmented generation and drafts first versions for a professional to review.
Jaipur is 3 h 30 min behind Tokyo all year. A 09:00 start there is 05:30 in Jaipur. Standard 09:00–18:00 office days overlap by 5 h 30 min, which is enough for live calls, demos and same-day answers.
Tokyo
Jaipur
00:0006:0012:0018:0024:00
09:00–18:00 office hoursShared hours
Local time, standard time.
★★★★★
It has been an amazing experience — the skills and knowledge he brings is a game changer.
K2Alpha Sharks, Blockchain · India
50+ projects for 30+ clients in 11 countries over six-plus years.
05 — FAQ
Custom software in Tokyo: common questions
Do you build custom ERP and AI software for businesses in Tokyo?
Yes, remotely. Flip Retail is a software studio in Jaipur, India, with no office in Tokyo; discovery happens on video calls and you get working software every two weeks.
How do time zones work between Tokyo and Jaipur?
Jaipur is 3 h 30 min behind Tokyo all year. A 09:00 start there is 05:30 in Jaipur. Standard 09:00–18:00 office days overlap by 5 h 30 min, which is enough for live calls, demos and same-day answers.
Can your AI agents talk to customers in Japanese and English?
Yes. Current language models handle Japanese and English well, including mixed-language messages. We still test an agent in each language your customers use before it goes live, and route anything it is unsure about to your team.
What would a first project look like for a financial services business?
Usually one module that fixes the most expensive problem first. For financial services & fintech that is often onboarding & KYC workflows and loan and policy lifecycle. It goes live early, and the rest of the system follows in two-week increments while your team is already using it.