Installment Loan Payment Calculator
Model your monthly payment and total cost at any loan amount, term, and APR — including the high-APR range associated with tribal installment lenders like Lakeshore Loans.
Loan calculator
Use this payment calculator to estimate monthly payments, total interest paid, and the full amortization schedule for any loan amount, APR, and term. For tribal installment loans like Lakeshore Loans, expect APRs in the 200–700% range — significantly higher than the personal-loan APRs most borrowers initially assume.
Your loan details
Tip: typical APRs reported by borrowers for this lender category have ranged roughly from the high double digits up to several hundred percent. Drag the APR slider to match the number on your actual loan agreement.
How this calculator works
It uses a standard amortizing-loan formula based on the APR, term, and amount you enter — the same math lenders use to build a repayment schedule. It's an estimate for comparison purposes only and is not an offer of credit. Your actual agreement may use a different method (e.g., add-on interest) that produces a different exact figure; always rely on your signed loan agreement for the true terms.
Amortization schedule
| Payment # | Payment | Principal | Interest | Remaining balance |
|---|
What "cost per $100 borrowed" actually tells you
The two most useful figures on this calculator are total repaid and cost per $100 borrowed. Monthly payment is what most people focus on first because it answers "can I afford this," but it hides the full cost — a longer term reduces the monthly number while making the total cost higher. Cost per $100 normalizes that: if a loan shows $172 per $100 borrowed, you're paying $72 in finance charges for every $100 that lands in your account.
For context, the same metric on a typical credit union Payday Alternative Loan capped at 28% APR runs roughly $5 to $10 per $100 borrowed on a 6-month term. State-licensed installment loans land somewhere between $15 and $50. Tribal installment products like the one Lakeshore Loans offers frequently sit at $80 to $300 per $100 borrowed at the APRs most borrowers report — see our rates and fees page for the documented evidence.
The difference that matters most
APR (annual percentage rate) is the all-in cost of a loan expressed as a yearly rate, including both interest and most fees. Interest rate alone is just the rate applied to the unpaid balance. For long-term loans the two are similar, but for short-term small-dollar loans — where a flat fee of $30 to $80 may be the largest component of the cost — the gap is huge. A $400 loan repaid in 60 days with a $60 fee has an interest rate of "15%" by one measure but an APR closer to 90%.
Federal Truth in Lending Act rules require lenders to disclose APR on most consumer loans precisely because the smaller "interest rate" or "factor rate" framing systematically understates cost on short-term products. When comparing offers, always compare APRs, not monthly payments or finance charges, and confirm the APR shown on your signed loan agreement matches what you were quoted during the application.
The CFPB consumer guide has a deeper walkthrough of how APR works across loan types if you want to dig in.
Three quick comparisons to try
Drag the sliders to match these scenarios. The point isn't to recommend a specific loan size — it's to show how the same amount changes dramatically based on APR and term.
Scenario A · "Small loan, paid fast"
$400 borrowed, 350% APR, 3-month term. Monthly payment looks manageable, but cost per $100 borrowed lands around $30 to $50. Total cost is contained because the term is short and the principal small. This is the closest tribal installment lending gets to "reasonable cost."
Scenario B · "Same size, longer term"
$400 borrowed, 350% APR, 12-month term. Monthly payment drops by more than half compared to Scenario A, but cost per $100 borrowed climbs above $200. A longer term feels easier on the monthly budget but more than triples the total cost.
Scenario C · "Best alternative"
$400 borrowed, 28% APR (PAL cap), 6-month term. Cost per $100 borrowed lands around $7 — between 10x and 40x cheaper than Scenarios A or B. This is what makes credit union PALs the recommended starting point.
The calculator is a tool, not an offer
This estimator uses standard amortizing-loan math. Real loan agreements may use precomputed interest, add-on interest, or fee structures that produce a slightly different total. Always rely on the signed loan agreement for binding terms, and read the rates and fees page for what to look for before signing. If you've already received a quote and the numbers don't match what's in this calculator, ask the lender to explain the difference in writing before agreeing.
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