1
Accounting For Developers, Part I
In this first part of a two-part series, we walk through basic accounting principles for anyone building products that move and track money.
Modern Treasury Journal
A payment service provider (PSP) for fiat and stablecoin. Launch in days with one API, sub-accounts, and built-in compliance across ACH, RTP, FedNow, and wire.
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Visit moderntreasury.com → On Hacker News Jul 2019 – Oct 2023
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2
Accounting for Developers, Part II
In this second post of our three-part series, we build a ledger for a Venmo clone by applying the accounting principles we learned in Part I.
3
What Happens When You ACH a Dead Person?
When an ACH return occurs, the payment is reversed. This means that if you had paid someone, the money will come back to your account. Or if you had charged someone, you will lose the money you thought you received. But how does that reversal happen?
4
Reconciliation is a knapsack problem
Yesterday, we announced adding AI to our recon engine. Today, we're underscoring how reconciliation is a pain point by delving into the math.
5
Accounting for developers part III – building a lending marketplace
In this final part of our Accounting for Developers series, we explore the ins and outs of building a ledger to power a lending marketplace product.
6
Building Payments for an Insurance Startup
This post is a guide to the operational, money movement elements of building an insurance company. We build a system for a regular monthly charge and a claim payout.
7
How to Build an Escrow Product
Escrow is a payment setup where the payer sends funds to a third party rather than directly to the payee. If certain conditions are met, the third party routes the funds to the recipient; if not, the funds get returned to the sender. Escrow is particularly useful for high value payments because the payer can rely on…
8
We switched to cursor-based pagination
Earlier this month, we migrated from offset pagination to cursor-based pagination for our API. In this journal, we walk through the basics of these methods of pagination and why we’re making this switch.
9
How to Build an Income Sharing Agreement Product
Regardless of specifics, however, the Income Sharing Agreement (ISA) structure is relatively consistent. To define it more explicitly, an Income Sharing Agreement funds a student’s tuition upfront in exchange for receiving a percentage of the student’s future earnings (hence “income-sharing”) based on a pre-defined…
10
What Is the PCI of Bank Payments?
Credit card users today can transact online with peace of mind because card-accepting merchants are subject to Payment Card Industry Data Security Standard (PCI DSS).