“Can an API-first payroll infrastructure company become the default embedded payroll layer for vertical SaaS platforms?”
Salsa was founded in 2021 to solve the developer-facing side of payroll — a category dominated by legacy incumbents (ADP, Paychex) and one embedded competitor (Check). The company's thesis is that vertical SaaS platforms want to launch their own branded payroll products, and that requires API infrastructure that handles calculations, tax filings, and money movement. Salsa has positioned itself as a Check alternative with US + Canada coverage in a single API, GraphQL access, and no co-branding.
Salsa discloses Increase as its banking provider, according to the Embedded Finance Index 2026.
Salsa does not disclose a bank charter of its own; its banking services are provided through Increase.
Salsa processes payments through Increase. Disclosed money-movement rails: ACH.
Salsa connects to bank accounts through Plaid.
Salsa's payroll is powered by Salsa (in-house) and salsa.
Salsa integrates with QuickBooks Online.
The Embedded Finance Index 2026 maps 6 layers in Salsa's stack: Payments / PSP (Increase); Money movement (ACH); Banking / BaaS (Increase); Payroll (Salsa (in-house) and salsa); Open banking (Plaid); Accounting (QuickBooks Online).
Salsa was founded by John Kramer and Juan Barroso and is founded in 2021.
Salsa has raised $30M+ in total (latest round: Series A, $20M).
Get a read on where your own stack stands against Salsa and the rest of its category — what they built versus bought, which providers they use, and where the gaps in your own strategy and competitive set actually are.