Yes, banks can loan money, and lending is one of the core powers granted to them by law. A national bank gets that authority from a charter issued by the Office of the Comptroller of the Currency under the National Bank Act; a state-chartered bank gets it from its state banking regulator. Without a valid charter from one of those sources, an organization cannot legally operate as a bank or offer structured lending products. What follows is what that authority actually looks like in practice: the limits banks work within, the disclosures they owe you, and the rights you carry into any loan agreement.
Where the Legal Authority Comes From
For national banks, the governing statute at 12 U.S.C. § 24 authorizes them to loan money on personal security, discount promissory notes, and exercise all powers necessary to carry on the business of banking.1Office of the Law Revision Counsel. 12 USC 24 Corporate Powers of Associations The federal government describes the National Bank Act itself as “a complete system for the establishment and government of national banks.”2Federal Register. National Bank Chartering State-chartered banks operate under equivalent authority granted by their state banking departments, which handle licensing, capital requirements, and permissible activities.
How Much a Bank Can Lend to One Borrower
Federal law caps concentration risk. A national bank cannot extend more than 15 percent of its unimpaired capital and surplus to a single borrower on an unsecured basis. Loans fully backed by readily marketable collateral get a separate allowance of another 10 percent of capital and surplus on top of that.3Office of the Law Revision Counsel. 12 USC 84 Lending Limits The point is to keep a single bad loan from threatening the bank’s stability. State-chartered banks face similar concentration limits under their own regulators.
How Banks Fund the Loans They Make
Banks don’t take deposits and pass them along dollar-for-dollar. They operate on a fractional model where they keep some portion of deposits in reserve and lend against the rest. Regulation D, at 12 CFR Part 204, historically set those reserve ratios. Since 2020, the required ratio has been zero percent across all deposit tiers, meaning there is no minimum percentage a bank must hold back from lending.4eCFR. 12 CFR Part 204 Reserve Requirements of Depository Institutions Regulation D
When a bank approves your loan, it doesn’t pull cash from a vault. It creates a new deposit in your account, generating money through an accounting entry that balances the loan (an asset to the bank) against your deposit (a liability). This is how banks expand the money supply well beyond the physical currency in circulation.
Even with zero required reserves, banks still need liquidity to meet withdrawals and daily operations. They borrow from the Federal Reserve’s discount window, where the primary credit rate sat at 3.75 percent as of early 2026.5Federal Reserve Economic Data. Discount Window Primary Credit Rate They also borrow from Federal Home Loan Banks and hold portfolios of high-quality liquid assets like Treasury securities. Regulators expect large banks to hold enough of these to cover at least 30 days of projected outflows during a stress scenario.
What the Bank Must Disclose Before You Sign
Federal law requires specific cost information up front, and it’s not left vague. Under the Truth in Lending Act, every closed-end credit transaction must include clear disclosure of the annual percentage rate, the total finance charge, the amount financed, the total of all payments over the life of the loan, and the payment schedule showing each installment’s amount and due date.6GovInfo. 15 USC 1638 Transactions Other Than Under an Open End Credit Plan The APR is the number that lets you compare offers across lenders because it folds interest and certain fees together.
For mortgages, a federal rule combines TILA and RESPA disclosures into two standardized forms. The bank must give you a Loan Estimate within three business days of receiving your application, and a Closing Disclosure at least three business days before closing.7Consumer Financial Protection Bureau. Guide to the Loan Estimate and Closing Disclosure Forms The three-day window before closing exists so you can review final costs without pressure. If anything material changes after the Closing Disclosure is issued, the lender generally has to send a corrected version and restart that waiting period.
Loans that cross certain cost thresholds pick up extra protections under the Home Ownership and Equity Protection Act. Whether a mortgage is classified as “high-cost” depends on both the loan amount and the points and fees, with the 2026 threshold sitting at $27,592.8Federal Register. Truth in Lending Regulation Z Annual Threshold Adjustments Credit Cards HOEPA and Qualified Mortgages High-cost loans carry additional disclosure requirements and restrictions on terms like balloon payments and prepayment penalties.
What a Bank Can Charge You
The interest rate depends on where the bank is chartered. Under 12 U.S.C. § 85, a national bank can charge interest at the rate allowed by the state where it’s located, or 1 percent above the Federal Reserve discount rate for that district, whichever is higher.9Office of the Law Revision Counsel. 12 USC 85 Rate of Interest on Loans Discounts and Purchases This federal preemption is why a national bank headquartered in a state with generous rate limits can lend at those rates to borrowers nationwide, even in states with tighter usury caps. Federal regulations define “interest” broadly for this purpose: late fees, overlimit fees, annual fees, and cash advance fees all count, not just the periodic rate.10eCFR. 12 CFR Part 7 Subpart D Preemption
Active-duty service members and their dependents get a firm ceiling regardless of state law. The Military Lending Act caps the Military Annual Percentage Rate at 36 percent on covered credit products, and that calculation pulls in credit insurance premiums, add-on products, and various application and participation fees along with interest.11Consumer Financial Protection Bureau. Military Lending Act MLA
Fair Lending and Kickback Protections
The Equal Credit Opportunity Act makes it illegal for any creditor to discriminate against a loan applicant based on race, color, religion, national origin, sex, marital status, or age. A bank also cannot penalize you for receiving public assistance income or for exercising your rights under consumer credit protection laws.12Office of the Law Revision Counsel. 15 USC 1691 Scope of Prohibition A bank can turn you down for poor credit or insufficient income. It cannot factor your demographic characteristics into that decision.
On mortgages, RESPA adds a layer against hidden costs. Lenders, title companies, appraisers, and real estate agents cannot pay or receive referral fees for steering business among themselves. Payments are permitted only for services actually performed.13Office of the Law Revision Counsel. 12 USC 2607 Prohibition Against Kickbacks and Unearned Fees
What the Bank Will Ask You For
Before the bank looks at your finances, it confirms who you are. Under the USA PATRIOT Act’s Customer Identification Program, banks must collect your name, date of birth, residential address, and a taxpayer identification number (usually your Social Security number) before opening any account, including a loan.14eCFR. 31 CFR 1020.220 Customer Identification Program Requirements for Banks The bank then verifies that information, typically with an unexpired government-issued photo ID. Non-U.S. persons can use a passport, alien identification card, or other government-issued document with a photograph.
After identity, the file moves to your financial profile. Mortgage borrowers typically complete the Uniform Residential Loan Application (Fannie Mae Form 1003), which collects income, debts, and assets in a standardized format.15Fannie Mae. Uniform Residential Loan Application Form 1003 Personal and business loans use internal bank forms that capture similar information to calculate a debt-to-income ratio. Expect to hand over one to two years of W-2s and federal tax returns, recent pay stubs dated within 30 days of your application, and several months of bank statements to verify cash flow and the source of any down payment.16Fannie Mae. Standards for Employment Documentation The bank will pull a credit report from one or more of the major bureaus to review repayment history, existing debts, and any liens or judgments.
Your Right to Back Out of a Home-Secured Loan
If your loan is secured by your primary residence, you may have three business days after closing to cancel. This right of rescission covers home equity loans, home equity lines of credit, and cash-out refinances, essentially any transaction where a lender takes a security interest in your home that isn’t a purchase mortgage.17eCFR. 12 CFR 1026.23 Right of Rescission The clock starts from the latest of three events: closing day, the day you receive your rescission notice, or the day you receive all required disclosures. If the bank never delivers proper disclosures, the rescission right extends to three years after closing.18Office of the Law Revision Counsel. 15 USC 1635 Right of Rescission as to Certain Transactions
Purchase-money mortgages are specifically exempt. That distinction trips people up. Refinancing and pulling cash out gives you three days to change your mind. Buying the house in the first place does not.
If Your Application Is Denied
A bank cannot leave you guessing. Under the Equal Credit Opportunity Act, it must notify you of its decision within 30 days of receiving your completed application. If the answer is no, you’re entitled to a written statement of the specific reasons, not a generic form letter but the actual factors that drove the decision.19Office of the Law Revision Counsel. 15 USC 1691 Scope of Prohibition – Section D Adverse Action Common reasons include a debt-to-income ratio that’s too high, insufficient credit history, or collateral that didn’t appraise at the needed value.
If the bank used a credit bureau report in making its decision, it must also tell you which bureau supplied it. That gives you the opportunity to check the report for errors and dispute inaccuracies before applying elsewhere.
If You Default After the Loan Closes
Most loan agreements include an acceleration clause that lets the bank demand the full remaining balance immediately if you miss payments or breach other terms. Once accelerated, the standard monthly schedule no longer applies; the whole debt is due at once. Some mortgage contracts also include due-on-sale provisions that trigger acceleration if you transfer the property without paying off the loan. Catching up on missed payments before formal acceleration may preserve the original schedule, but the window is narrow.
On secured loans like mortgages and auto loans, the bank can pursue the collateral through foreclosure or repossession, with the exact process varying by state. In many states, if the collateral sells for less than the balance owed, the bank can seek a deficiency judgment for what remains.
One boundary worth knowing: when a bank collects on its own loan under its own name, the Fair Debt Collection Practices Act does not apply. That statute governs third-party debt collectors, not original creditors. A bank falls under FDCPA restrictions only if it uses a different name to collect or sells the debt to an outside agency.20Federal Reserve. Fair Debt Collection Practices Act Compliance Handbook If your debt does end up with a third-party collector, that collector must follow strict rules about when and how they contact you, and must verify the debt if you dispute it in writing within 30 days.