Can I survive on a part-time job wage?

Yes, if you live in a sharehouse. Hourly wages for part-time work range from 1,000 to 1,300 JPY. Working 25-30 hours a week is enough to cover living costs, but not enough to save significant money for travel.

Should I open a local bank account?

Yes. Most employers will not pay into a foreign bank account. Once you get your Residence Card, open an account at Japan Post Bank (Yuucho), as they are the most foreigner-friendly.

How to budget for a working holiday in Japan

You need at least $3,500 USD in liquid savings before arriving to cover your first month of rent, deposits, and living expenses before your first paycheck. Aim for a monthly burn rate of $1,200 to $1,500 USD to live comfortably while working a local wage job.

Calculate your 'Arrival Runway'. Before you earn a yen, you need to pay move-in costs. Budget $1,500 for the first month's rent and 'key money' (non-refundable fees to landlords), and $500 for a SIM card, transport pass, and basic household items like bedding and kitchenware.
Set your monthly burn rate. After your runway, limit your monthly spending to $1,300. This assumes $600 for rent (sharehouse), $300 for food, $150 for transport, and $250 for social spending and mobile data.
Accounting for local taxes. Expect to pay 10-20% of your gross income in mandatory taxes and health insurance (National Health Insurance). Set this aside as soon as you get paid so you don't accidentally spend it.
Track with local currency. Stop thinking in your home currency. Use an app like Money Manager to log every transaction in JPY. This helps you realize how quickly small daily purchases (like convenience store snacks) eat into your monthly budget.

Can I survive on a part-time job wage?: Yes, if you live in a sharehouse. Hourly wages for part-time work range from 1,000 to 1,300 JPY. Working 25-30 hours a week is enough to cover living costs, but not enough to save significant money for travel.
Should I open a local bank account?: Yes. Most employers will not pay into a foreign bank account. Once you get your Residence Card, open an account at Japan Post Bank (Yuucho), as they are the most foreigner-friendly.