When an Omatome Loan Helps — and When It Just Moves the Problem
A consolidation loan — おまとめローン in Japanese — replaces several debts with one: one payment, one rate, one end date. The arithmetic has exactly two moving parts: the new monthly payment versus the sum of the old ones, and the new total cost versus the sum of the old ones. The example defaults show the uncomfortable combination Japanese borrowers meet most often: monthly payments fall from ¥60,000 to about ¥31,900, while total cost rises — because stretching ¥1,500,000 over five years at 10% costs more interest, in total, than three shorter loans at higher rates. Monthly relief is real; whether it is worth it depends on the second number.
The calculator computes each current debt's payoff from its own balance, rate and the payment you actually make — not from a theoretical term. If a payment does not even cover that debt's monthly interest, the row effectively never clears, and the warning in the results card says so. That situation is not a candidates-for-consolidation situation; it is an urgent one, and the tool is designed to make it impossible to miss.
When consolidation genuinely helps
Three conditions make consolidation work: the new rate is clearly lower than the weighted average of the old ones; the term is no longer than it needs to be; and the cleared cards and lines are then kept closed or frozen. Consolidating revolving balances into an amortising instalment loan is the classic good case — an instalment loan has a built-in end date, a revolving balance does not. Bank おまとめ loans usually price below consumer-lender debt, which is where most of the savings come from.
A Japan-specific note on old debts
Loans taken before the 2010 full implementation of the amended Money Lending Business Act were often charged above the Interest Restriction Act caps — the "grey zone" years. Overpaid interest (過払い金) can still be reclaimable from the lender for a limited window after your last payment, typically ten years. Before consolidating an old consumer-lender debt, ask a qualified adviser or a legal clinic whether a refund claim applies — consolidating can complicate it. This calculator does not model refunds; it exists to show the forward-looking arithmetic.
The habit that decides the outcome
Consolidation resets the balances on your old cards to zero; it does not reset the habits that filled them. Lenders check the same bureaus everyone else does — JICC, CIC and, for bank debt, KSC — and a freshly cleared card that starts growing again is the single most common route from "consolidated" to "worse than before". Cut the physical cards, lower the credit-line ceiling with the issuer, or move the spending to a debit arrangement. The maths on this page is honest about the numbers; the discipline after it is yours.
Frequently Asked Questions
What is an omatome loan?
おまとめローン (omatome ro-n) is the Japanese term for a debt consolidation loan — one new loan that repays several existing debts, leaving a single monthly payment. Banks and consumer lenders both offer them; the calculator compares your current debts against one you enter.
Does consolidation reduce what I owe?
No. The balances simply move to a new loan. If the new rate is lower, interest accrues more slowly from that point; if the term is longer, the monthly payment falls but total interest can rise. Both effects are shown side by side so the trade-off is explicit.
What rate should I enter for the new loan?
The rate a specific lender quotes you for a consolidation loan at your credit standing — not an advertised 'from' rate. The 10.00% default is an illustrative example only, NOT a current Japanese market rate.
Are there fees?
Legitimate consumer credit in Japan rarely involves large upfront fees; interest and any agreed charges are disclosed as an effective annual rate (実質年率). Enter any known fee in the calculator so it lands in the total. A broker demanding a fee before you receive a loan is a red flag in any country.
Could I claim back overpaid interest instead?
Possibly, for old consumer-lender debt charged above the Interest Restriction Act caps. Claims (過払い金請求) are generally time-limited from your last payment. It interacts with consolidation decisions, so verify with a qualified adviser before restructuring old debts.
Related Japan Calculators & Guides
- Japan Loan Affordability Calculator — what payment you can sustain
- Japan Credit Card & Installment Calculator — revolving cost in detail
- Guide: Debt Consolidation Basics in Japan
- Guide: Understanding Loan Interest in Japan
Disclaimer: Finance Atlas is not a licensed bank, lender, card issuer or financial adviser in Japan. This calculator provides educational estimates only and does not constitute financial advice or a credit offer. Confirm exact figures with your lender, issuer or bank.