Case Study: Investing platform Stash boosts deposits by 19% with Plaid

How Stash grew their user base and reduced fraud by building Plaid into their onboarding flow

Stash, a fast‑growing financial subscription platform with roughly six million customers, faced slow, error‑prone onboarding from microdeposits and a prior provider that reduced account‑linking conversion and increased fraud risk. To fix this, Stash turned to Plaid, integrating Plaid’s account‑connection and verification tools (Auth, Balance, Identity, Transactions) into their onboarding flow.

By using Plaid to let users quickly select their bank, authenticate accounts, and check balances, Stash improved the onboarding experience and reduced fraud exposure. With Plaid, 21% more customers were able to link external accounts, 19% more customers funded their accounts (boosting deposits), and retention after six months was 15% higher for users who connected via Plaid versus microdeposits.

Stash

Dan Mendes

Senior Director of Product