Truth in Savings Act and Regulation DD: Disclosures and Ad Rules

Under the Truth in Savings Act disclosure requirements, a bank must give you a written breakdown of a deposit account’s interest rate, Annual Percentage Yield (APY), fees, balance requirements, compounding method, and any transaction limits before you open the account, and must repeat key figures on every periodic statement afterward. The rules live in Regulation DD at 12 CFR Part 1030 and exist so you can compare one bank’s checking, savings, money market, or CD against another on the same terms.¹ Knowing what the bank owes you makes it easier to spot gaps, challenge surprises, and shop deliberately.

Which Accounts and Institutions Are Covered

Regulation DD applies to deposit accounts held by individuals for personal, family, or household purposes: checking, savings, money market deposit accounts, and certificates of deposit. Accounts held by businesses or partnerships are not covered, and neither are accounts held by a professional in a fiduciary role such as a trustee or executor.¹

Several products a bank may sell you fall outside the rule entirely. Mutual funds, annuities, government securities, bank-issued bonds, mortgage escrow accounts, repurchase agreements, and interest rate swaps are not subject to the APY and fee breakdown you get on a savings account, even when you buy them at a branch.¹

The regulation covers national banks, state-chartered banks, and federal savings associations. Credit unions sit under a parallel rule from the National Credit Union Administration at 12 CFR Part 707, which imposes substantially the same disclosure obligations, so your experience as a member should look very similar to a bank customer’s. Corporate credit unions and certain very small nonautomated credit unions with $2 million or less in assets are exempt from Part 707.²

What the Bank Must Tell You Before You Open an Account

The pre-opening disclosure is the heart of the law. Before you commit any funds, or before the bank performs a service that would trigger a disclosable fee, you must receive a written statement of the account’s terms. The centerpiece is the APY, which reflects the total interest earned over 365 days after accounting for compounding. The APY matters more than the stated interest rate because it captures how often earned interest is folded back into principal: at the same rate, daily compounding produces a higher APY than monthly compounding.¹

Beyond the APY and the underlying interest rate, the disclosure has to spell out:³

The minimum balance needed to open the account, to earn the advertised APY, and to avoid fees.
Every fee the bank can charge on the account, the amount or how it is calculated, and what triggers it.
How often interest is compounded and when it is credited, plus whether you forfeit accrued interest if you close the account before the credit date.
When interest starts to accrue on non-cash deposits like checks, meaning whether the clock starts on receipt or after the funds clear.
Any limits on the number or dollar amount of withdrawals and deposits.

The bank must also tell you which of two approved interest calculation methods it uses. The daily balance method applies a daily periodic rate to your balance each day. The average daily balance method adds up the balance for each day in the statement period, divides by the number of days, and applies a periodic rate to that average. If your balance swings a lot during the month, the method you’re on can meaningfully change your earnings.¹

Timing matters too. If you open the account in person, you should have the disclosures in hand first. If you open it remotely and didn’t already receive them, the bank has to mail or deliver them within 10 business days of opening the account.⁴ You can also ask for the disclosure package for any account the bank offers, even if you don’t bank there yet. In person, you should get it on the spot; by phone or mail, within a reasonable time.

Tiered-Rate Accounts

Some accounts pay one rate on balances up to a threshold and a different rate above it. The bank has to disclose the APY for each tier so you can see your actual return at different deposit levels. When the structure applies a given rate only to the portion of the balance inside its tier (rather than to the entire balance), the bank must show a range of APYs for each tier reflecting the lowest and highest possible return within that band.¹

Certificates of Deposit

Time accounts carry extra disclosure items. The bank must state the maturity date, describe any early withdrawal penalty and how it’s calculated, and say whether the CD renews automatically or simply expires. If the CD compounds interest during its term and lets you pull interest out before maturity, the disclosure must warn you that doing so will reduce your effective earnings below the advertised APY.³ Early withdrawal penalties vary: a flat dollar amount, a forfeiture of several months’ interest, or a retroactive rate reduction. The actual penalty terms must appear in the disclosure, not just a warning that one exists.¹

What Has to Appear on Your Periodic Statement

Once the account is open, each statement must report the Annual Percentage Yield Earned for the cycle. That figure reflects what you actually got based on your real balance moves during the period and often differs from the APY the bank advertised. The statement also has to show the dollar amount of interest credited during the cycle.⁵

Fees charged during the period must be itemized by type and dollar amount. When the same fee hits several times in one cycle, the bank can list each occurrence or group them with a total, but no fee should sit buried inside an unexplained balance change.⁵

Overdraft activity gets its own line. Each statement has to show, separately, the total dollar amount of overdraft fees and the total dollar amount of returned-item fees charged during the period, and the same totals for the calendar year to date.⁶ This is often where people first see what an overdraft habit is costing: at roughly $33 per occurrence, a string of small transactions on an overdrawn account can run up fast.

When the Bank Has to Warn You About Changes

If the bank wants to raise a fee, lower your interest rate, or make any other change that works against you, it has to send written notice at least 30 calendar days before the change takes effect. That window is yours to use: close the account, move the money, or accept the new terms. The main exception is a variable-rate account tied to an external index that was disclosed when you opened the account. Routine rate movement driven by that index doesn’t trigger an individual 30-day notice because the mechanism was already part of the deal you agreed to.⁷

CD Maturity Notices

CDs have their own notice schedule that depends on the term and whether the account renews automatically:

Auto-renewing CDs with a term longer than one year: at least 30 calendar days before maturity, with the full set of account disclosures for the new term. If the new rate isn’t set yet, the bank must say so and give you a phone number to call when it is.
Auto-renewing CDs of one year or less but longer than one month: the same 30-day notice, though the bank can send a shorter summary covering the maturity date, the new rate if known, and any differences from the old terms.
Non-renewing CDs longer than one year: at least 10 calendar days before maturity, disclosing the maturity date and whether interest keeps accruing after the term ends.

For auto-renewing CDs, the bank also has the option of mailing the notice at least 20 calendar days before the end of a grace period, provided the grace period is at least five calendar days.⁸ If you hold a CD and don’t see a maturity notice land within these windows, call the bank before maturity. A missed notice can roll you into another term at a rate you wouldn’t have chosen.

Rules for Advertising and Bonus Offers

Every ad for a deposit account has to be accurate and cannot misrepresent terms. Once an ad mentions a specific APY, it has to also disclose the minimum balance needed to earn that yield, any time commitment for a CD along with a statement that an early withdrawal penalty may apply, whether the rate is variable, how long the rate is being offered, and a statement that fees could reduce earnings.⁹

The word “free” is restricted. A bank cannot call an account “free” or “no cost” if any maintenance or activity fee can be charged on it. A monthly service fee that kicks in below a balance threshold, an inactivity fee, or a per-check charge all disqualify an account from the label.⁹

Bonus offers get their own disclosure rules. Regulation DD defines a bonus as a premium, gift, or cash incentive worth more than $10 given for opening, maintaining, or increasing an account balance; items worth $10 or less are not treated as bonuses. When a bonus is advertised, the ad also has to state the APY, the time and minimum balance requirements to earn it, and when it will be paid. Broadcast and billboard ads get a narrow break and may skip the opening deposit and timing details, but still have to show the APY and balance requirements.¹ The point is to keep a “$300 bonus!” headline from obscuring the $15,000 balance you’d need to park for 90 days to qualify.

What to Do If a Bank Isn’t Following the Rules

You cannot sue a bank yourself under the Truth in Savings Act. Congress originally included a private right of action, but repealed it in 2001.¹⁰ Enforcement sits with federal regulators. The Consumer Financial Protection Bureau can bring actions against any covered institution, and the appropriate federal banking agency, such as the OCC or FDIC, can pursue violations through cease-and-desist orders and civil money penalties under Section 8 of the Federal Deposit Insurance Act. For credit unions, the NCUA plays that role.¹¹

If a bank fails to give you required disclosures, buries a fee, or advertises an account in a misleading way, your most effective tool is a complaint to the CFPB or the bank’s primary federal regulator. A pattern of consumer complaints is often what prompts the kind of examination that leads to an enforcement action, and documented complaints also create a record you can point to if the account’s problems grow.

1
eCFR. 12 CFR Part 1030 – Truth in Savings (Regulation DD)
2
eCFR. 12 CFR Part 707 – Truth in Savings
3
eCFR. 12 CFR 1030.4 – Account Disclosures
4
eCFR. 12 CFR 1030.4 – Account Disclosures
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eCFR. 12 CFR 1030.6 – Periodic Statement Disclosures
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eCFR. 12 CFR 1030.11 – Additional Disclosure Requirements for Overdraft Services
7
eCFR. 12 CFR 1030.5 – Subsequent Disclosures
8
eCFR. 12 CFR 1030.5 – Subsequent Disclosures
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eCFR. 12 CFR 1030.8 – Advertising
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Office of the Law Revision Counsel. 12 USC Ch. 44: Truth in Savings
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Office of the Law Revision Counsel. 12 USC 4309 – Administrative Enforcement