Interest Doesn't Stop During Deferral
Deferred payment loans let you borrow now and pay later โ but interest doesn't stop. A $40K student loan at 6% deferred 3 years capitalizes $7,640. BNPL processed $72B in 2023.
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Capitalized interest is added to principal โ you pay interest on interest. Federal subsidized loans may not accrue during in-school deferment. BNPL: pay on time to keep 0%; miss and default APRs kick in. Construction loans: plan for the balloon when build phase ends.
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Why: Deferred payment loans let you skip payments during deferral โ but interest may accrue and capitalize. A $40K student loan at 6% deferred 3 years grows to ~$47,640. BNPL offers 0% if paid on time, but default APRs of 18-29% can apply. Construction loans accrue interest during build.
How: Enter principal, annual rate, deferral months, and interest treatment (capitalized, interest-only, or interest-free). Add repayment term. The calculator shows balance after deferral, interest accrued, new monthly payment, and total cost vs immediate repayment.
Run the calculator when you are ready.
๐ Sample Scenarios โ Click to Load
Interest Accrual During Deferral
Balance Growth (Original vs Capitalized)
Total Cost: Deferred vs Immediate
Payment Schedule (Deferral Then Payments)
For educational purposes only โ not financial advice. Consult a qualified advisor before making decisions.
๐ก Money Facts
$40K student loan at 6% deferred 3 years capitalizes $7,640 in interest
โ Federal Student Aid
BNPL processed $72B in 2023
โ Federal Reserve
0% promotional rate if paid on time โ BNPL and medical financing
โ CFPB
BNPL default APRs run 18-29%
โ Afterpay/Klarna
$300K at 7% with 12mo interest-only deferral accrues ~$21K
โ Industry
What Deferred Payment Loans Really Cost
Deferred payment loans let you borrow now and pay later โ but interest doesn't stop. A $40K student loan at 6% deferred for 3 years capitalizes $7,640 in interest, making you repay $47,640. Buy-now-pay-later services processed $72B in 2023. This calculator shows exactly what deferral costs you.
Interest During Deferral
Capitalized interest is added to principal and compounds. Interest-only means you pay interest monthly but principal stays flat. Interest-free (e.g., federal in-school, some BNPL) means no interestโbut miss a payment and default APRs (18-29%) can apply.
Forbearance vs Deferment
Deferment often applies to federal student loans (in-school, hardship); subsidized loans may not accrue interest. Forbearance is lender-granted pause; interest usually accrues and may capitalize. Both let you skip payments temporarily but have different interest treatment.
Student Loan Deferment
Federal student loans offer in-school deferment. Unsubsidized and private loans accrue interest during deferral; that interest capitalizes when repayment begins. A $40K loan at 6% deferred 3 years grows to ~$47,640 before your first payment.
Capitalized Interest
Once interest capitalizes, you pay interest on that interest. Common with student loans, mortgage forbearance, construction loans. A $300K loan at 7% with 12 months interest-only deferral accrues ~$21K in interest.
Balloon Payment Risk
Deferred payment loans often end with a large balloon. Construction loans, BNPLโif you cannot pay when due, you may face refinancing at higher rates, default APRs, or foreclosure. Always plan for the balloon before deferring.
BNPL: Pay On Time
Buy-now-pay-later offers 0% if you pay on time. Miss a payment and default APRs (18-29%) kick in. A $5K purchase at 0% for 18 months stays $5K if paid on timeโbut can balloon to $6.5K+ if you default.
Construction & Commercial Loans
Construction loans typically have interest-only periods during build. A $2M loan at 6.5% with 24 months interest-only accrues ~$260K in interest. Plan for the balloon when the construction phase ends.
Medical & Device Financing
Medical bills and device financing often offer 0% for 12-24 months. Pay on time to avoid retroactive interest or default rates. A $1,200 phone at 0% for 24 months = $50/moโmiss a payment and fees or higher rates may apply.
Official Data Sources
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