# MedicalCreditCards > Before you sign that medical credit card, the real math. A calculator and guide that shows the true cost of a medical credit card's deferred-interest offer both ways — paid in full versus not — with a plain verdict and cheaper alternatives ranked cheapest-first. We take no money from card issuers and there is no application link anywhere on the site. MedicalCreditCards is a door in the MedicalRecords network — a focused, honest tool that carries people home to MedicalRecords.com (https://www.medicalrecords.com). It has no accounts or databases of its own and keeps nothing. ## Key facts - There is no 'Apply Now' link anywhere on this site, ever. We take no money from card issuers, medical lenders, or buy-now-pay-later companies. That absence is the point. - With a deferred-interest offer, failing to pay the entire promotional purchase balance by the deadline can add interest going back to the purchase date, not merely interest on the balance left at the deadline. Source: [CFPB — Promotional financing offers](https://www.consumerfinance.gov/archive/blog/how-understand-special-promotional-financing-offers-credit-cards/); verified 2026-07-28. - A true 0% introductory APR differs from deferred interest: after the promotional period, interest starts on the remaining balance going forward, subject to the offer's actual terms. Source: [CFPB — Promotional financing offers](https://www.consumerfinance.gov/archive/blog/how-understand-special-promotional-financing-offers-credit-cards/); verified 2026-07-28. - Cheaper alternatives are always shown, ranked cheapest-first: a provider interest-free payment plan, charity care at nonprofit hospitals, negotiating the itemized bill, and paying from savings. - Medical-credit-card context is based on the CFPB's 2023 report; calculator terms are illustrative and users must verify their own agreement. Source: [CFPB — Medical credit cards and financing plans](https://files.consumerfinance.gov/f/documents/cfpb_medical-credit-cards-and-financing-plans_2023-05.pdf); verified 2026-07-28. ## Key pages - [The Trap Card calculator](https://medicalcreditcards.com/) - [Deferred interest, explained (guide)](https://medicalcreditcards.com/guides/deferred-interest-explained) - [CareCredit calculator](https://medicalcreditcards.com/calculator/carecredit) - [Privacy](https://medicalcreditcards.com/privacy) - [Accessibility](https://medicalcreditcards.com/accessibility) ## The house - [MedicalRecords.com](https://www.medicalrecords.com): the platform every door leads home to. ## Note MedicalCreditCards is general information, not financial advice, and is not affiliated with any card issuer or government agency. Card terms vary — verify your actual offer. For guidance about your situation, consult a qualified financial professional.