Prompt Details
Model
(claude-4-6-sonnet)
Token size
2,270
Example input
[loan_type]: Store installment, "0% financing" for electronics
[amount]: $3,800 (in-store price)
[monthly_payment]: $187/month including $22 insurance
[term_and_rate]: 24 months, 0% stated
[fees]: $150 origination fee, $22/month bundled insurance, 2% early repayment penalty
Example output
LOAN TYPE IDENTIFIED:
Type B — Store Installment (retailer-financed).
This matters because the stated "0%" rate hides the real cost inside the inflated item price and mandatory insurance. Standard APR calculation would miss the actual financing cost.
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WHAT YOU ACTUALLY PAY:
— Total payments: 24 × $187 = $4,488
— Insurance (bundled): 24 × $22 = $528
— Origination fee: $150
— Total paid: $5,166
— Item market price: $3,200
— Total overpayment: $1,966
— Overpayment as % of item price: 61.4%
Split:
Pure financing cost: $1,288
Insurance: $528
Fees: $150
Total overpayment: $1,966
---
REAL INTEREST RATE:
Effective APR: 38.7%
The offer states "0% installment." That is false. The item is priced at $3,800 in-store vs. $3,200 on the open market — a $600 markup that is the first layer of hidden interest. The insurance adds another $528. The stated rate is not 0%. The real rate is 38.7% APR.
---
HIDDEN CONDITIONS:
— Insurance: $22/month, presented as mandatory. It is not legally required. Cancelling it saves $528 over the term but may require a written refusal at signing. Ask explicitly.
— Origination fee: $150, paid upfront. Non-negotiable per contract terms.
— Early repayment penalty: 2% of remaining balance. On a $3,800 balance at month 6, that is approximately $63. Early repayment still saves money — net saving at month 6 is $480 after penalty.
— Item price markup: $600 above market. This is financing cost disguised as retail price.
---
BENCHMARK:
Effective APR: 38.7%
Typical bank personal loan rate: 18–24% APR
This offer is 15–20 percentage points above the market rate for a standard consumer loan.
Assessment: significantly above market.
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VERDICT:
Do not take this offer as structured.
The biggest risk: you are paying 61% over the item's market value while believing the financing is free. The "0%" label is a marketing claim, not a financial reality.
What to do instead:
1. Buy the item at market price ($3,200) from an online retailer.
2. If financing is needed, take a standard bank personal loan at 18–22% APR.
3. Total cost under that structure: approximately $3,780 — versus $5,166 here.
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BEST NEXT STEP:
Check the market price of this exact item online before signing anything. If it is $600 cheaper outside this store, the "0% deal" is already broken.
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CLAUDE-4-6-SONNET
Find out what any loan actually costs before you sign. Paste your offer details — get the real APR, total overpayment, hidden fees decoded, and a direct verdict on whether the deal is worth taking.
Covers: mortgages, car loans, credit cards, BNPL, store installments, payday loans, leasing, refinancing.
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Updated 1 week ago
