What Are Fintech Companies and How Do They Work?

Fintech companies are businesses that deliver financial services — payments, lending, banking, investing, insurance — primarily through software rather than branches, paperwork, and human intermediaries. The word blends “financial” and “technology,” and it covers everything from the payment app on your phone to the robo-advisor managing your retirement contributions. Understanding what fintech companies are and how they work matters because most of them are not actually banks: they build a slick app on the front end and partner with a chartered bank, broker, or insurer on the back end. That structure shapes your fees, your protections, and what happens to your money if something goes wrong.

How Fintech Differs From a Traditional Bank

A traditional bank runs on decades-old core software with digital tools layered on top. A fintech company builds its entire operation on modern software from the start. The practical result is a mobile-first experience: you open an account by photographing your ID, transfers settle in seconds instead of days, and an algorithm rebalances your portfolio overnight instead of a human advisor doing it quarterly. Lower operating costs are why many fintech services charge lower fees, or no fees at all, compared to legacy alternatives.

The more important difference is structural. Most fintech companies do not hold a banking charter. They partner with a chartered bank that actually holds customer deposits and handles regulatory compliance. Your balance in a popular fintech app doesn’t sit with the company whose logo is on the card; it sits at a partner bank you may never have heard of. A small number of fintechs have obtained their own national charter, but the multi-year process makes that the exception.

The Main Types of Fintech Companies

“Fintech” is a category, not a product. The rules and risks depend on which slice you’re using.

Digital Payments

Payment apps let you send money to another person or pay a merchant without cash, checks, or a physical card swipe. They link your bank account or debit card to a digital wallet and route transfers through encrypted channels. What used to take days through check clearing now settles in seconds for everyday transactions.

Digital Lending

Online lending platforms handle mortgages, personal loans, and small-business financing entirely through a web or mobile interface. You upload documents and an automated underwriting system evaluates your income, credit history, and debt load in minutes. Speed is the selling point. The tradeoff is that interest rates on fintech loans vary widely, and a fast approval can obscure unfavorable terms in the fine print.

Neobanks

Neobanks are digital-only companies that offer checking accounts, debit cards, and savings tools without physical branches. Low overhead often means no monthly fees, no minimum balances, and perks like modest free overdraft protection. Almost all of them rely on a partner bank to actually hold deposits.

Robo-Advisors and Fractional Investing

Robo-advisors manage an investment portfolio automatically based on your goals and risk tolerance, buying, selling, and rebalancing a mix of stocks and ETFs without a human broker. Annual management fees run a fraction of what a traditional advisor charges. Fractional share trading pushes this further: instead of needing enough money to buy a full share, you invest a specific dollar amount and own a proportional slice. Put $50 into a $500 stock and you own one-tenth of a share, with one-tenth of any dividend.

Insurtech

Insurtech applies data analytics, mobile sensors, and automation to insurance. Usage-based auto policies monitor actual driving through an app or device and price the premium to that behavior rather than demographic averages. Some claims platforms let you submit photos of damage and receive a payout decision without an in-person adjuster.

Buy Now, Pay Later

Buy now, pay later (BNPL) splits a purchase into installments at checkout. The most common version splits the cost into four equal payments over six weeks with no interest, though late fees may apply. Longer-term installment products for bigger purchases do charge interest and look more like traditional personal loans. The regulatory picture is unsettled: a 2024 CFPB rule that would have classified short-term BNPL products as credit cards was withdrawn in May 2025, and as of late 2025 several state attorneys general have sent inquiries to providers while New York has imposed disclosure and licensing requirements.1U.S. Congress. Buy Now, Pay Later: Policy Issues and Options for Congress Read the terms carefully in the meantime.

Embedded Finance

Embedded finance is what happens when a company with no banking background builds financial services directly into its own platform. A ride-sharing app offering instant driver payouts, an e-commerce site providing checkout financing, or a freelancing platform issuing branded debit cards all fit the pattern. The consumer never leaves the original app. Behind the scenes, software connectors called APIs link the platform to a licensed bank or payment processor that handles the regulated parts.

How Fintech Companies Make Money

The apps that feel “free” still generate revenue. The model just looks different from a bank charging a monthly maintenance fee.

  • Interchange fees. Every time you swipe a fintech-issued debit or credit card, the merchant’s bank pays a small fee to the card-issuing bank, and the fintech takes a share. Across millions of users, this adds up fast.
  • Payment for order flow. Zero-commission stock trading platforms route your orders to market makers who pay the platform a small amount per share. Critics note the practice can produce slightly worse execution prices for the investor.
  • Interest on deposits. When your money sits in a fintech-linked account, the partner bank earns interest by lending those deposits out and shares the revenue with the fintech. Some neobanks pass a portion back as a high-yield savings rate.
  • Subscription tiers. Many apps offer a free base product and charge monthly fees for higher ATM limits, faster transfers, or advanced tools.
  • Loan origination and interest. Digital lenders earn money the old-fashioned way: interest on loans they issue, plus origination fees deducted at funding.

Where Your Money Actually Sits

This is the part most people skip, and the part that matters most if something breaks. When you deposit money into a fintech app, it almost never stays with the fintech company. It goes to a partner bank, usually held in a “for benefit of” (FBO) account. The FBO account pools funds from many fintech customers into one account at the bank, with the fintech’s internal ledger tracking who owns what.

FDIC Pass-Through Insurance

FDIC insurance protects deposits up to $250,000 per depositor per bank when a bank fails. For that coverage to reach you as a fintech customer, the arrangement has to qualify for “pass-through” insurance. The FDIC requires three conditions: the funds must actually be owned by you rather than the fintech, the bank’s records must show the account is held on behalf of customers, and either the bank’s or the fintech’s records must identify each individual owner and their balance.2FDIC.gov. Pass-through Deposit Insurance Coverage If any condition fails, the entire pooled FBO account is treated as belonging to the fintech itself, insured for just $250,000 total no matter how many customers had money in it.

What the Synapse Collapse Showed

In 2024, Synapse Financial Technologies, a middleware company that connected fintech apps to partner banks, filed for bankruptcy. More than 100,000 customers across multiple fintech platforms were locked out of their accounts. The court-appointed trustee identified a shortfall of up to $96 million between what the partner banks held and what customers were owed. The banks did not fail. The problem was that the intermediary’s records did not reliably match the banks’ records, making it impossible to quickly determine who owned what.

Before parking significant sums in any fintech platform, it’s worth checking whether the app names its partner bank, whether the bank acknowledges holding customer deposits, and whether the platform has a history of regulatory issues.

Who Regulates Fintech Companies

No single federal agency oversees all of fintech. Which regulator applies depends on what the company does.

Securities and Exchange Commission

The SEC regulates fintech companies involved in investments or digital asset transactions. Platforms that manage portfolios, offer trading, or sell digital assets that qualify as securities must register and follow federal disclosure requirements.3U.S. Securities and Exchange Commission. Framework for Investment Contract Analysis of Digital Assets Robo-advisors must register as investment advisers. Whether a particular digital token counts as a security depends on the economic substance of the arrangement, not what the issuer calls it.

Consumer Financial Protection Bureau and Truth in Lending

The CFPB has enforcement authority over consumer financial products, including digital lenders and payment platforms. The Truth in Lending Act requires any creditor extending consumer credit to disclose the annual percentage rate, total finance charge, and total payment amount before closing, and to separate those disclosures conspicuously so borrowers can compare offers.4Office of the Law Revision Counsel. 15 USC 1638 – Transactions Other Than Under an Open End Credit Plan

Electronic Fund Transfer Act

The Electronic Fund Transfer Act protects users of digital payment systems, mobile wallets, and debit cards. If someone makes an unauthorized transfer from your account, your liability is capped at $50 when you report it promptly.5Office of the Law Revision Counsel. 15 USC 1693g – Consumer Liability Waiting more than two business days after you notice a lost or stolen card raises the cap to $500. Letting more than 60 days pass after a statement shows unauthorized activity can mean losing everything taken after that window. When you report an error, the institution generally has to investigate within 10 business days, or extend to 45 days while provisionally crediting your account.6Consumer Financial Protection Bureau. Regulation E 1005.11 – Procedures for Resolving Errors

OCC and Data Privacy

The Office of the Comptroller of the Currency charters and supervises national banks, including fintech companies that pursue their own federal banking charter instead of using a partner bank.7Office of the Comptroller of the Currency. Charters and Licensing Any financial institution handling personal customer data must also comply with the Gramm-Leach-Bliley Act, which requires safeguards against unauthorized access to nonpublic personal information.8Office of the Law Revision Counsel. 15 USC 6801 – Protection of Nonpublic Personal Information

State Money Transmitter Licenses

Federal rules are only part of the picture. Nearly every state requires companies that transmit money to hold a money transmitter license, and most fintech payment and cryptocurrency platforms fall into that category. Montana is the only state that requires just a Secretary of State registration rather than a dedicated license. Typical licensing conditions include a surety bond, FBI background checks, audited financial statements, and minimum net worth. A fintech operating nationally may need and maintain licenses in 49 states at once.

Tax Reporting If You Receive Payments

If you receive payments through a fintech platform, the platform may have to report them to the IRS. Third-party settlement organizations, which include payment apps used for business transactions, file a Form 1099-K for any user whose gross payments exceed $20,000 and whose transaction count exceeds 200 in a calendar year. Both thresholds must be met.9Internal Revenue Service. IRS Issues FAQs on Form 1099-K Threshold Under the One, Big, Beautiful Bill The threshold was reinstated after a brief period when Congress had attempted to lower it to $600.

A 1099-K doesn’t automatically mean you owe tax on the full amount reported. Personal transactions like splitting rent or reimbursing a friend are not taxable income, even if the platform lumps them into the gross total. If you use payment apps for both personal and business purposes, keeping those activities in separate accounts makes tax time much simpler.