How to Keep an Oshi-Katsu Budget Book: A Simple Ledger With a Free Template
Oshi-katsu that was supposed to be fun turns into dread on the day the payment comes out. What helps prevent that is a small budget book that records only oshi-katsu.
A budget book isn’t for scolding yourself for overspending. It is a tool for keeping your future options open, so you can welcome the next live show, ensei trip or anniversary in good spirits. This article sticks to methods that work with paper, a spreadsheet or a budgeting app.
Three Purposes of an Oshi-Katsu Budget Book
The point of recording oshi-katsu costs isn’t to make every number balance perfectly.
- Know how much you can spend now. Don’t mix living money with money you’re allowed to spend on oshi-katsu.
- Make future payments visible. Don’t forget money that will land later, like reserved goods and annual fees.
- Keep the ways of spending that satisfy you most. Feed “what makes me happy to spend on” into next month’s budget.
The amount you spend and the size of your love are not proportional. What the budget book tracks is not your score as a fan but how well your life and your oshi-katsu fit together.
First, Separate Out Your Living Money
Before setting a budget, secure the following.
- Payments you need every month, like rent, utilities and phone bills
- Money to sustain life: food, medical costs, transportation
- Payments with deadlines, such as debt repayment and taxes
- Savings for unexpected expenses
- 01Oshi-katsu budgetWhat remains is yours to spend
- 02Savings for the unexpectedSet aside before spending
- 03Payments with deadlinesDebt repayment, taxes
- 04Money to sustain lifeFood, medical, transportation
- 05Monthly must-paysRent, utilities, phone
The oshi-katsu budget sits on top of everything else, never underneath.
What remains is where your oshi-katsu budget starts. Deciding from your living conditions and upcoming plans is less of a strain than fixing a flat “X% of income.”
If you’re doing oshi-katsu saving, record the amount you set aside separately from the budget you’ll spend this month. Money that’s still being saved shouldn’t count as “available this month.”
A Ready-to-Use Oshi-Katsu Budget Book Template
You can start with just the following seven columns. Rule the lines in a notebook or paste them into spreadsheet software.
| Date | Description | Category | Budget | Actual spending | Payment month | Satisfaction note |
|---|---|---|---|---|---|---|
FREE TEMPLATE
Oshi-Katsu Budget Book Template (in Japanese)
An Excel version with clearly marked input cells and a Word version you can print and fill in by hand. Both files are in Japanese.
Limit Yourself to Five Categories
Oshi-katsu costsFive buckets are enough
- GenbaTickets and contact events
- EnseiTransport, lodging, local travel
- Goods and worksMerch, releases, books
- Anniversaries and socializingBirthday parties, swaps
- Ongoing costsFan club, subscriptions
Look back with the same rules each month.
Slicing costs finely from the start turns recording into a chore. If you’re unsure, these five are enough.
| Category | What goes in it |
|---|---|
| Genba (live events) | Tickets, streaming tickets, contact events |
| Ensei | Transportation, lodging, local travel |
| Goods and works | Merch, CDs and video releases, books, in-app purchases |
| Anniversaries and socializing | Birthday parties for an absent oshi, swaps and shipping, gatherings with ota-tomo (fandom friends) |
| Ongoing costs | Fan club, subscriptions, membership renewals |
If you want to split out “outfits,” “beauty” or “cafés,” use the five categories for a month first, then add more. Being able to look back by the same rules matters more than classifying everything accurately.
A “Satisfaction Note” Grows Your Budget
Next to the amount, leave a short comment.
- Want to go again
- Managed to combine shipping
- Bought on impulse and haven’t used it
- Satisfied, including the time spent with friends
With this column, what you see is not “categories to cut” but “experiences to keep.” It makes deciding your next budget easier than a ledger of amounts alone.
A 15-Minute Monthly Review
You don’t have to record every day. Gather receipts, purchase emails and screenshots of order screens in one place, and go through them in this order at the end of the month.
- Enter this month’s spending. Line up just the facts first; save the regrets for later.
- Carry reserved payments into next month and beyond. Check payment on shipping, card debits and annual fees.
- Look at the gap from your budget. Why you went over matters more than whether you did.
- Reread your satisfaction notes. Pick one category to keep and one that’s okay to reduce.
- Enter next month’s plans. Put in lottery result dates, release dates, birthdays and renewal months first.
- 01Enter spendingJust the facts
- 02Carry paymentsReserved goods, fees
- 03Check the gapWhy, not just how much
- 04Reread notesKeep one, reduce one
- 05Plan next monthLottery, releases, birthdays
Decide just one thing to try next.
You don’t need to change everything every month. What keeps the habit alive is deciding on just one thing to try next, such as combining shipping or setting a cap first on random items.
For Reserved Goods, Separate the Order Date From the Payment Date
Pre-orders are where an oshi-katsu budget book slips most easily. Even if your account balance hasn’t changed when you order, the money is already spoken for.
- On the order date, record the product name and total amount
- Look at the total including shipping and fees
- Write down the payment method and the month of debit
- Note whether the order can’t be canceled
- If the shipping month changes, move only the schedule
A pre-order is “a purchase your future self pays for.” Use the amount left after subtracting what you’ve already committed to, not your balance, as the yardstick for your next purchase.
Preparing for Random Goods and Sudden Supply
Random goods, blind-box merch where you don’t know which item you get, and sudden supply can’t be managed with a schedule alone. So split your monthly budget in two.
- Planned slot: spending you know about ahead of time, like tickets, reserved items and membership fees
- Free slot: spending for sudden sales and things you only start wanting at the genba
Planned slot
- Tickets and reserved items
- Membership fees
Free slot
- Sudden sales
- Things you first want at the genba
When the free slot runs out, check once before dipping into next month.
Once the free slot is used up, ask yourself before buying more: “Do I want it enough to cut next month’s planned slot?” If you’re going to tsumu (buy in bulk), it’s easier to decide when you write down a cap on the total you’ll pay, rather than the number of items.
Don’t count money you expect back from flea-market sales or trades as income until it actually arrives. Buying on the assumption that “if it sells, I can make it up” breaks your budget when it doesn’t sell.
Paper, Spreadsheet or App: Which to Choose?
| Method | Who it suits | Watch out for |
|---|---|---|
| Paper notebook | You enjoy the act of writing | Totals are manual. Decide where to keep receipts |
| Spreadsheet | You want totals by month and category | Don’t build overly complex formulas at the start |
| Budgeting app | You want to pull together card and account history | If non-oshi-katsu spending gets mixed in, keep your tags consistent |
The best method is not the one with the most features but the one you can open again at the end of the month. Even if you switch methods partway, the records up to then are not a failure.
What Companies Can Do: Sales Design That Helps Fans Stay Within Budget
Fans’ household budgeting shouldn’t rest on individual effort alone. Companies and IP operators are expected to design information so that people can judge the total and the schedule before they buy.
- Show not only the base price but also shipping, fees and conditions clearly
- Let people check the order period, shipping schedule and payment timing on the same screen
- When releasing multiple products in a short period, announce the schedule as early as possible
- State the number of variations, purchase limits and box specs for random items
- When something sells out, say whether it will be restocked, so it doesn’t create excessive urgency
This isn’t meant to reduce sales opportunities. Fans who can choose within their own budget and keep supporting happily after buying are the basis of a long relationship.
Signs You Should Consider Rethinking or Seeking Help
If the following continue, the first step is not a more elaborate budget book but pausing purchases and looking at your life as a whole.
- You are moving money meant for living expenses or payments into oshi-katsu
- You are afraid to look at your card bill and can’t open the statement
- You are trying to handle loans or deferred payments with only your next income
- You feel you can’t be a fan unless you buy
If it is hard to talk to family or someone you trust, the Consumer Hotline 188 (in Japanese), Japan’s consumer hotline, will connect you to a nearby consumer affairs counseling center. For legal problems, you can consult Houterasu, the Japan Legal Support Center (in Japanese), after checking the eligibility conditions.
Notes From The Oshi Lab: A Rhythm That Protects Enthusiasm for the Long Run
An oshi-katsu budget book shows not how big a fan’s enthusiasm is but the rhythm that keeps enthusiasm going for the long run. Spending rises around anniversaries, and in quiet months you prepare for the next genba. Once this wave is visible, you can see that fan business isn’t only about getting people to buy more every month.
For companies too, a release schedule that lets fans plan, product design that shows the total, and a way of selling that leaves the freedom not to choose are all important. A relationship in which short-term sales and the ability to join in next time with peace of mind both hold up is possible. Information design that achieves both is what underpins being loved for the long run.
Summary
An oshi-katsu budget book is not a record of self-denial. It puts plans, actual spending, upcoming debits and satisfaction in one place, and creates a state where you can keep loving your oshi comfortably next time too.
First, try the five-category template for just one month, and adjust a single thing at the end of the month. If you’d like to start with saving, see how to save for oshi-katsu, and if money worries are weighing on you emotionally, read about oshi-katsu fatigue as well.
Note: This article is general household-budgeting information and is not individual advice on financial products, investing, debt restructuring and the like. If you are having trouble making payments, please consult a professional service (in Japan) as early as possible.
FAQ
What should I record in an oshi-katsu budget book?
To start, five items are enough: date, description, category, budget and the amount you actually paid. For pre-orders, also note the order date and the month the payment is due, so you're less likely to miss payments in later months.
What if I can't keep up with a budget book?
Don't try to record every day. Save the receipt or order screen when you buy, and log everything together at the end of the month. Start with just three to five categories, and choose a level of detail you can sustain.
How much should I set as my oshi-katsu budget?
There is no single right answer. Secure rent, food, debt repayment and savings for living first, then decide from what remains, in line with your upcoming ticket and ensei plans.
When do I record goods I reserved with a credit card?
Record them on the order date, the day you decided to buy, and also write down the month the payment will be debited. The key is not to confuse money that hasn't left your account yet with a balance you can spend.
If I go over budget in a month, should I quit oshi-katsu?
There's no need to reach a conclusion right away. Work out whether the overage came from planned things like an anniversary or an ensei trip, or from piled-up impulse buys, then adjust just one thing about next month's budget or how you save.


