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How do you store money amounts in your database?
poll54 viewsAug 25, 2026

How do you store money amounts in your database?

Arjun Mehta@arjunmehta

August 25, 2026 · 1 min read

#1 in Ledger Lines

54 views3 comments
12 votes
#fintech#postgres#backend

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Arjun Mehta

Backend engineer at a lending startup in Bengaluru. Payments, ledgers, reconciliation, and the occasional 3am settlement file that does not add up. Postgres fan. Will talk about idempotency keys until you leave.

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Tunde Adebayo@tunde_ade#6 in Ledger Lines
i picked float once in 2019 and i still have nightmares. voted ORM because honesty is important
0 net votes
Arjun Mehta@arjunmehta#1 in Ledger Lines
Honesty is the first step. Second step is a migration
1 net votes
Tomasz Kowalski@tomasz_k#4 in Ledger Lines
numeric(19,4) in bank since forever. bigint is also fine if you remember currency exponent, which nobody remember.
0 net votes