Ally Financial is a digital financial services company that started in 1919 as General Motors Acceptance Corporation (GMAC), the financing arm of General Motors. Today it operates as one of the largest online-only banks in the United States, with over $155 billion in domestic deposits as of mid-2024. It offers banking, auto financing, investing, and lending products, all without a single physical branch.
From GMAC to Ally Financial
GMAC was created in 1919 as a division of General Motors to help car dealers finance their inventory and offer loans to customers buying GM vehicles. For decades it served primarily as GM’s captive financing operation, even supporting wartime manufacturing during World War II.
The company began expanding beyond auto loans in 2000 when it launched GMAC Bank. Then, during the 2008 financial crisis, GM’s troubles forced major changes. In 2009, GMAC Bank was transformed into Ally Bank, and in 2010 the parent company officially rebranded as Ally Financial. The rebrand wasn’t just cosmetic. Ally restructured its auto finance business into an independent operation called Ally Auto, which now works with dealers selling many vehicle brands rather than exclusively GM.
The Largest Online-Only Bank
Ally Bank has no physical branches. Everything runs through its website and mobile app, which is how it keeps fees low and interest rates competitive. The bank is FDIC-insured, meaning deposits are protected up to the standard federal limit.
Its core banking products include:
- Spending account: A fee-free checking account with up to 30 “spending buckets” that let you separate money for different goals or expenses within a single account.
- Savings account: No monthly fee and no minimum deposit required to open.
- Money market account: Offers tiered interest rates based on your balance, comes with a debit card, and supports remote check deposits.
- Certificates of deposit: Terms ranging from three months to five years, with no monthly maintenance fee and no minimum deposit. Ally also offers a “raise your rate” CD in two- and four-year terms.
Because Ally doesn’t pay for branch real estate or in-person staff at hundreds of locations, it can pass those savings along as higher interest rates on deposits and fewer account fees. That trade-off works well for people comfortable managing their money digitally, though it means you can’t walk into a branch to deposit cash or sit down with a banker.
Auto Financing Powerhouse
Despite its growth into full-service banking, auto lending remains Ally’s roots and one of its biggest businesses. Ally ranked number one in financing consumer auto sales in the United States for two consecutive years, according to Experian’s AutoCount data. The company works with a wide network of dealerships across multiple vehicle brands, including RVs, offering dealers a full suite of financing products.
If you’ve ever financed a car at a dealership, there’s a reasonable chance Ally was one of the lenders your dealer submitted your application to. Most borrowers interact with Ally Auto indirectly, since the dealer handles the paperwork and Ally buys or funds the loan behind the scenes. You’d then make your monthly payments to Ally.
Investing and Wealth Management
Ally also runs an investment platform. Self-directed trading accounts let you buy stocks, ETFs, and options with no account minimum. For a more hands-off approach, Ally offers robo portfolios that build and manage a diversified mix of ETFs for you, requiring just $100 to start. This positions Ally as a one-stop shop: you can hold your checking, savings, car loan, and investment accounts under one login.
Who Ally Financial Serves
Ally’s customer base splits into two broad groups. On the consumer side, it attracts people who want high-yield savings rates, low fees, and are comfortable banking entirely online. On the commercial side, it serves thousands of auto dealers who rely on Ally to finance vehicle inventory and customer purchases.
The company is publicly traded on the New York Stock Exchange under the ticker ALLY. It’s headquartered in Detroit, a holdover from its General Motors origins, though its workforce and operations are spread across the country. What began as a single-purpose auto lender a century ago has grown into a broad digital financial institution that competes directly with both traditional big banks and newer fintech companies.