Mainstreet Banking* puts your money to work and gives you the financial visibility you need.
Sign Up NowEverything you need to manage your business finances efficiently, all in one integrated platform.
Put your idle cash to work. Earn 1.00% Annual Percentage Yield** on every dollar sitting in your account — with no minimums.
Issue cards for your whole team. Set per-card spend limits and monitor transactions in real time, wherever your team spends.
Dedicated accounts for taxes, payroll, and savings. Automate expense tracking and sync with your accounting tools.
Complete a quick application online. No paperwork, no branch visit required.
Transfer funds and start earning 1.00% APY immediately on your balance.
Issue team cards, set up dedicated savings buckets, and sync your books automatically.
Get answers to common questions about our banking services
Join thousands of businesses already using Mainstreet to streamline their financial operations.
Sign Up Now*Mainstreet is a financial technology company and not a bank. Banking services are provided by i3 Bank, Members FDIC. Visa® debit cards are issued by i3 Bank, Members FDIC pursuant to a license from Visa U.S.A. Inc. and may be used everywhere Visa debit cards are accepted.
Accounts are eligible for pass-through deposit insurance only to the extent pass-through insurance is permitted by the rules and regulations of the FDIC, and if the requirements for pass-through insurance are satisfied. There may be a risk that pass-through deposit insurance is not available because conditions have not been satisfied. In such cases, funds may not be fully insured in the event the insured depository institution where the funds have been deposited were to fail.
**The advertised rate is an approximation and is rounded to the nearest hundredth of a percent. Annual Percentage Yield (APY) is variable and subject to change after account opening. Rate is compounded monthly and credited monthly.
***No account or domestic transaction fees. Some foreign transaction fees may apply in limited circumstances.