Resources
External resources for fintech founders — newsletters, communities, regulators, tools.
Published December 14, 2020 · Updated May 16, 2026
Start here
Our primary content covers many of these topics directly:
- Card products: How to launch a card product, Credit Card Economics Model
- Bank partnerships: How to select a bank partner, 14 steps to closing a bank partner
- Challenger banks: Guide to starting a challenger bank, Bank Account Economics Model
- Lending: Term Loan Economics Model, Term Loan Unit Economics calculator
- Compliance: BSA/AML Sample Policy, Credit Card Business Trunk
- Going to market: Go to market guide
The external resources below complement those with material from other practitioners and vendors.
Compilations
- Banks and Processors — community-maintained spreadsheet of sponsor banks and card processors
Foundational reading
Payments mechanics
- A simple explanation of fees in the payment card industry — Richard Gendal Brown
- Deciphering the payments stack — Stephen Cho
- Transaction processing flow — GetFinal (archived)
- Complete fintech dictionary — Moov
- Best practices in bank-fintech partnerships — QED & BCG whitepaper
Cards
- Ultimate guide to interchange revenues — Unit
- Interchange in 1000 words — Matt Brown
- Card issuing in 1000 words — Matt Brown
- 2017 payment card landscape — GetFinal (archived but historically useful)
- Credit Card as a Service — Part 1, Part 2, Part 3 — Cokie Hasiotis and Matthew Goldman
- Explainer on the Prepaid Rule for Fintechs — Lithic
- Common problems with bank partners — Ayokunle Omojola (Aug 2021)
Payments and acquiring
- Payment processor shopping — Trupti Natu
- Modern Treasury Learn — explainers on payment rails (ACH, wire, RTP, FedNow)
Banking-as-a-Service and challenger banks
- Vertical banks — Ayokunle Omojola (Mar 2020)
- Permissionless issuing — Ayokunle Omojola (Feb 2020)
- API routing layers — Ayokunle Omojola (May 2020)
- Financial reconciliation — Ayokunle Omojola (Dec 2020)
- Time to money — Ayokunle Omojola
Newsletters
- Bits About Money — Patrick McKenzie on financial infrastructure
- Net Interest — Marc Rubinstein on financial-sector economics
- Fintech Business Weekly — Jason Mikula
- Fintech TLDR — daily fintech newsletter
- CardsFTW — Matthew Goldman on card products and infrastructure
Debt and lending
- 16 things to know about raising debt for startups — Andreessen Horowitz
- Lessons in raising debt capital for lending company founders — Rohit Mittal
- Calculating the true cost of a debt facility — Rohit Mittal
- Differentiated and sustainable lending businesses — Ayokunle Omojola (Aug 2020)
Compliance
- Policy Glossary — RizeFS
- Basics of Financial Compliance — RizeFS
- Fintech Guide to Building U.S. KYC/KYB Operations — Lithic
- Fintech Guide to Building a Compliance Program — Lithic
- The Complete Guide to Transaction Monitoring — Unit21
KYC, identity, and fraud
- Mapping the Identity Verification Tech Stack — 9yards
- KYC and AML: beyond the acronyms — Bits About Money
- Fraud Glossary — RizeFS
Other topics
- Payroll APIs — Andreessen Horowitz
- 2023 Insurtech Areas of Interest — Jared Franklin
- Marketing Guidelines — RizeFS
- Feature development at Final — GetFinal (archived)
X (formerly Twitter) threads
What teams are building in the customer support side of Banking as a Service? I’m struggling to find good examples.
It’s the main operational headache of building a neobank. And everyone needs the same things.
— Will White (@willwhite003), July 26, 2020
I spent the last month diving into “instant” ACH with four different players (Sardine, Astra, Orum and Plaid) and it’s fascinating how much of fintech is being built as I type this message. So damn bullish on this space.
— Aditi Shekar (@aditishekar), April 21, 2022
I’ve spent a lot of time thinking how to best advise and invest into fintech companies, and over time have come up with a few mental frameworks to assist myself. Here’s one of them:
— Aaron Frank (@arfrank), August 24, 2020