Field notes,
from the rails.
Long-form pieces on the decisions that compound. Interchange, gateways, MOR architecture, cross-border, FX. Written from engagements, not theory.
FETA documentation: how to repatriate USD to Korean banks without holds
Korea's Foreign Exchange Transaction Act requires categorization on every inbound USD wire. Mishandled, your bank holds the settlement for 7–21 days. Here is the framework that clears it on T+1.
Read in fullFETA 문서화: USD를 한국 은행으로 보류 없이 송금하는 방법
한국의 외국환거래법은 모든 USD 해외 송금에 대한 분류를 요구합니다. 잘못 처리하면 은행이 7-21일 동안 결제를 보류합니다. T+1에 처리되는 프레임워크는 다음과 같습니다.
Read in fullYour Stripe account just closed: the 90-day recovery playbook for foreign-owned LLCs
Stripe closed your foreign-owned LLC account, held the funds, and you have 90 days of pending settlement and an unclear path forward. Here is the playbook for getting back on stable rails fast.
Read in full您的 Stripe 账户刚刚被关闭：外国持股 LLC 的 90 天恢复攻略
Stripe 关闭了您的外国持股 LLC 账户，资金被冻结，您有 90 天的待结算期，并且前路不明。以下是让您快速重回正轨的攻略。
Read in fullعملة التسوية للمشغلين الخليجيين: الدرهم الإماراتي، أو الدولار الأمريكي المحتفظ به، أو الدولار هونج كونج
العملة التي تسوي بها إيراداتك الأمريكية هي قرار إدارة خزينة، وليست خيارًا افتراضيًا. إليك الإطار الذي يجب أن يستخدمه المشغلون الخليجيون - والحالات التي يكون فيها كل خيار هو الأفضل.
Read in fullSettlement currency for Gulf operators: AED, USD-held, or HKD
The currency you settle US revenue into is a treasury-management decision, not a default. Here is the framework Gulf operators should use — and the situations where each option wins.
Read in fullContratos de nearshoring: procesamiento de pagos para comercios B2B con tarjeta y ACH en EE. UU.
Los fabricantes mexicanos que obtienen contratos B2B en EE. UU. después del USMCA tienen un volumen de tarjetas comerciales y ACH que la banca mexicana tradicional no puede aceptar limpiamente. Aquí está la pila de pagos de EE. UU. para operadores de nearshoring.
Read in fullNearshoring contracts: US merchant processing for B2B card and ACH
Mexican manufacturers winning US B2B contracts post-USMCA are sitting on commercial card and ACH volume that traditional Mexican banking cannot accept cleanly. Here is the US payment stack for nearshoring operators.
Read in fullHow interchange optimization actually works (and where SaaS leaves money on the table)
Most SaaS platforms over-pay interchange by 20–60 basis points without knowing the levers exist. A practitioner's view of what moves the needle, with examples.
Read in fullالمنطقة الحرة DMCC مقابل IFZA مقابل JAFZA: أيهما تختار لعملياتك الموجهة نحو الولايات المتحدة
يؤثر اختيارك للمنطقة الحرة لكيانك التشغيلي في الإمارات العربية المتحدة على بنيتك التحتية للمدفوعات في الولايات المتحدة أكثر مما يدركه معظم المشغلين. إليك الإطار العام — والمواقف التي تتفوق فيها كل منطقة.
Read in fullDMCC vs IFZA vs JAFZA: which UAE free zone for US-facing operations
The free-zone you choose for your UAE operating entity affects your US payment infrastructure more than most operators realize. Here is the framework — and the situations where each one wins.
Read in fullPicking a payment gateway: a buyer's framework for ISVs and marketplaces
Most gateway selections are made on rate sheet and integration time. The decisions that matter are the ones nobody puts in the RFP. Here are the seven we ask first.
Read in fullNGN repatriation: navigating CBN restrictions for US-source revenue
The CBN's FX restrictions made naira repatriation harder than in any other African market. Here is the framework for getting USD to your Nigerian bank cleanly — and when to hold USD instead.
Read in fullK-beauty in the US: building payment rails that survive return-rate spikes
K-beauty has the brand power. The US has the AOV. What breaks most Korean brands at the moment of US expansion is not customer demand — it is payment infrastructure that cannot absorb the return-rate dynamics of premium skincare.
Read in full미국 K-뷰티: 반품률 급증에도 견딜 수 있는 결제 시스템 구축
K-뷰티는 강력한 브랜드 파워를 가지고 있습니다. 미국 시장은 높은 AOV를 자랑합니다. 대부분의 한국 브랜드가 미국 진출 시 좌절하는 이유는 고객 수요가 아니라, 프리미엄 스킨케어의 반품률 역학을 흡수할 수 없는 결제 인프라 때문입니다.
Read in fullMOR vs gateway: which model is right for your platform?
Becoming your own merchant of record looks like an upgrade. Sometimes it is. Sometimes it costs you a quarter of margin and a year of focus. The decision framework, in plain English.
Read in fullSBV documentation: receiving USD from your US LLC without 30-day holds
The State Bank of Vietnam regulates inbound foreign currency more tightly than most jurisdictions. Mishandled, your repatriation gets frozen for 30–90 days. Here is the documentation framework that clears it the first time.
Read in fullTài liệu của SBV: nhận USD từ LLC tại Hoa Kỳ mà không bị giữ 30 ngày
Ngân hàng Nhà nước Việt Nam quản lý ngoại tệ đến chặt chẽ hơn hầu hết các khu vực pháp lý. Nếu xử lý sai, việc chuyển tiền về nước của bạn sẽ bị đóng băng trong 30–90 ngày. Đây là khung tài liệu giúp bạn thông quan ngay lần đầu tiên.
Read in fullCross-border payments: the architecture choices that compound
The decisions that quietly determine whether a global payments stack throws off margin or burns it. Multi-acquirer routing, FX strategy, and the case for treating cross-border as architecture, not procurement.
Read in fullScheme fees: the quietest line item, the noisiest opportunity
Visa and Mastercard publish fee schedules that read like tax code. Most platforms pay them, lump them with interchange, and never look. Here's what's hiding in the assessment columns.
Read in fullHệ thống thanh toán tại Hoa Kỳ dành cho các nhà sản xuất Việt Nam xây dựng thương hiệu trực tiếp đến người tiêu dùng
Cơ sở sản xuất của Việt Nam đang ra mắt các thương hiệu riêng tại Hoa Kỳ – may mặc, giày dép, điện tử, nội thất. Sách lược thanh toán thời OEM không còn phù hợp với mô hình trực tiếp đến người tiêu dùng. Đây là hệ thống phù hợp.
Read in fullThe US payment stack for Vietnamese manufacturers building direct-to-consumer brands
Vietnam's manufacturing base is launching its own brands into the US — apparel, footwear, electronics, furniture. The OEM-era payment playbook does not work for direct-to-consumer. Here is the stack that does.
Read in fullإعداد معالجة المدفوعات الأمريكية لمشغل منطقة حرة في دبي: الهيكل الذي يعمل بالفعل
Stripe Atlas هو المحاولة الأولى الافتراضية. يفشل بنفس الطريقة بالنسبة للمشغلين في الإمارات العربية المتحدة كما يفشل للشركات ذات المسؤولية المحدودة المملوكة للصين. إليك البديل الدائم - وكيف يتناسب مع كيانك في DMCC أو JAFZA.
Read in fullSetting up US payment processing for a Dubai free-zone operator: the structure that actually works
Stripe Atlas is the default first attempt. It fails the same way for UAE-based operators that it fails for Chinese-owned LLCs. Here is the durable alternative — and how it sits alongside your DMCC or JAFZA entity.
Read in fullSquare account closed: the recovery playbook for foreign-owned LLCs
Square account holds and terminations are the second-most common rails failure we see at Epitychia, right behind Stripe. The triggers are different, the recovery path is similar. Here is the 90-day playbook.
Read in fullWyoming LLC vs Delaware C-Corp: qué entidad para exportadores mexicanos que venden a clientes en EE. UU.
La recomendación por defecto — 'crea una Delaware C-Corp' — es la respuesta correcta para un caso de uso específico y la respuesta incorrecta para casi todos los demás. Aquí está el marco que los operadores mexicanos deberían usar para elegir.
Read in fullWyoming LLC vs Delaware C-Corp: which entity for Mexican exporters selling to US customers
The default advice — "form a Delaware C-Corp" — is the right answer for one specific use case and the wrong answer for almost everyone else. Here is the framework Mexican operators should use to choose.
Read in fullHow Chinese exporters get US merchant processing without Stripe
Stripe terminations are not an edge case for foreign-owned LLCs in supplements, beauty, and electronics — they are the modal outcome. Here is the alternative path: traditional merchant accounts, in-house banking, and cross-border settlement that does not depend on aggregator goodwill.
Read in full中国出口商如何在没有 Stripe 的情况下获得美国商户收单服务
对于从事保健品、美妆和电子产品行业的外国独资有限责任公司而言，Stripe 终止服务并非偶然事件，而是普遍结果。本文将介绍替代方案：传统商户账户、内部银行服务以及不依赖聚合器善意的跨境结算。
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