How to pay for dental work abroad — without making the math worse.

Most Mexican clinics offer a 5–10% cash discount versus card payment, because they pay a 4–7% merchant fee on US-issued cards. A $10,000 All-on-4 paid in cash often becomes $9,000–9,500.

Crossing with more than $10,000 in physical cash requires a US Customs declaration (legal but logistically annoying). Wire transfer is cleaner; ask the clinic for an SPEI or international wire route.

Some clinics accept Zelle or Wise transfers from a US account at parity to cash — these have effectively zero fees on the patient side.

Dental work performed abroad qualifies for HSA/FSA reimbursement under IRS Pub 502 — yes, including in Mexico — provided the procedure is medically necessary (this excludes purely cosmetic veneers in most cases; implants usually qualify).

Effective discount: your marginal tax rate. A $10,000 implant case paid from HSA at a 24% federal bracket is effectively $7,600.

What you need: itemized invoice in English with procedure codes (ADA CDT codes), the dentist's licensure number, and proof of payment. Reputable clinics produce this on request — ask before booking.

Caveat: FSA accounts are use-it-or-lose-it annually; HSA accounts roll over. If you have $5K of FSA budget about to expire, this is a no-brainer.

Several top Mexican clinics — Sani, Supreme, Simply, Dental Solutions — offer in-house 0% APR plans for treatment over $3,000, typically through a US-based partner. The structure: 10% deposit, balance split into 6 or 12 monthly payments at 0% interest.

Approval rates are high (~80%) because the underwriting is lighter than US lenders — they're optimizing for sale, not credit safety. Soft credit pull at most.

The 'gotcha' is back-end interest: if you miss the final payment, deferred interest at 22–28% APR retroactively applies to the original balance. Don't miss the final payment. Set autopay.

These plans almost always beat CareCredit, which advertises 0% but charges deferred interest under similar conditions.

Personal loans from prime lenders (LightStream, SoFi, Marcus) currently quote 7–14% APR for borrowers with 720+ FICO. A 36-month $10,000 loan at 9% costs ~$1,400 in total interest.

Why this beats credit cards: fixed rate, fixed term, no surprise rate hikes. Why it can beat clinic financing: you can spread payments over 5 years instead of 12 months.

Soft pre-qualification at all three above doesn't ding your credit. Get quotes from all three before deciding.

Avoid 'medical loans' marketed specifically for dental — they typically charge 16–22% APR and offer no advantage over a regular personal loan.

Putting a $10,000 case on a 24% APR card and paying minimums turns it into a $14,000+ case over three years. This wipes out most of your dental-tourism savings.

If you must use a card: open a 0% APR balance-transfer card (Citi Diamond Preferred, Wells Fargo Reflect) before traveling, charge the dental work, then pay it off within the 18–21 month promo window.

Use a card with no foreign transaction fee (Capital One Venture, Chase Sapphire Preferred). Even Mexican-side dental clinics charge transactions in MXN, so a 3% FX fee on a $10K case is $300 wasted.