Source: https://rivet.global/blog/best-online-business-bank-for-startups-us
Published: 2026-08-29 · Updated: 2026-08-29 · By Alexia M.

# Best online business bank for startups: what to compare

How US startups choose an online business account: wires, treasury, cards, team controls, investor wires, international payroll and the partner bank behind the app.

## Key takeaways

- Free wires, a clean investor wire, treasury yield and cards are what startups compare first.
- By 10 to 20 people, roles, approvals and per-card limits matter more.
- Startups with contractors abroad pay most of their banking cost in FX, not fees.
- Check the partner bank and how deposit insurance and sweep networks apply above $250,000.

"Best online business bank account for startups" is one of the top completions after "best online business bank". Founders pick in an afternoon and live with the choice for years.

## What startups compare first

| Feature | Why it matters early |
|---|---|
| Free wires | Paying vendors and receiving investor money |
| Treasury yield | Runway earning something |
| Cards | A few for the founders |
| Accounting sync | Your bookkeeper's time |

## What matters by 20 people

- Roles and approvals so not everyone can send money.
- Cards per person and per vendor with limits.
- Bill pay and receipt capture.
- Payroll integration.

## The international question

Remote startups often have half their team abroad. Paying 10 contractors $5,000 each by converted wire at 1% costs $500 a month. On a multi-currency account at 0.5%, it costs $250, and local payouts avoid SWIFT fees.

## Deposit insurance

Fintech accounts hold money at partner banks. FDIC insurance covers up to $250,000 per depositor per bank per ownership category. Sweep networks spread deposits to raise coverage. Read your provider's terms.

## Paying into the United States: the local rail

| What | Detail |
|---|---|
| Local rail | ACH for batch payments; RTP and FedNow for instant transfers |
| Run by | Nacha for ACH; The Clearing House for RTP; the Federal Reserve for FedNow |
| Settlement | Same-day ACH within the business day, standard ACH the next; RTP and FedNow in seconds, 24/7, where both banks take part |

Source: [Nacha: Same Day ACH](https://www.nacha.org/rules/same-day-ach-moving-payments-faster). Checked when this guide was last updated; the scheme's own page has the current figures.

## Where Rivet fits

Rivet is a multi-currency account with cards, payouts and approvals. Starter is free with USD details and unlimited digital cards. Growth ($200 a month, flat) adds EUR and GBP details, physical cards, payouts to 120+ countries and approvals for 10 members. Rivet is not a bank; regulated partner institutions hold the funds. See [paying a remote team abroad](/blog/paying-a-remote-team-abroad).

## Questions

### What is the best online bank for a startup?

For a US team with mostly US costs, an account with free wires and treasury, such as Mercury, is common. For a team paying contractors abroad, add or choose a multi-currency account.

### Do I need treasury?

Once your balance is several months of runway, earning yield on part of it is worth setting up. Check what it is invested in.

### Is my money insured above $250,000?

Some providers spread deposits across partner banks through sweep networks for higher FDIC coverage. Read how it works for your account.

### What about cards?

Count cardholders and whether you want credit or prefunded cards. Per-user pricing adds up.