The Truth in Savings Act

Before the Truth in Savings Act, banks advertising deposit yields used a variety of conventions: nominal rates compounded at different frequencies, "effective" rates calculated under inconsistent methodologies, promotional rates that obscured the underlying ongoing yield. The result was that one institution's "5%" was not directly comparable to another's, and consumers had no reliable way to compare deposit products across banks. TISA, enacted in 1991 as part of the Federal Deposit Insurance Corporation Improvement Act, addressed that problem by mandating a single yield methodology, a standard set of upfront disclosures, and required periodic-statement contents.

This article describes what TISA requires, where it sits in the broader regulatory regime, and the typical compliance failures that produce CFPB and prudential-regulator enforcement actions. The companion piece on the deposit-side yield calculation itself is APR versus APY; the parallel rule on the credit side is the Truth in Lending Act.

Scope and authority

The Truth in Savings Act is codified at 12 U.S.C. §4301 et seq. Its implementing regulation is Regulation DD at 12 CFR Part 1030, issued by the Consumer Financial Protection Bureau. The NCUA issues a parallel regulation for credit unions at 12 CFR Part 707; the substantive requirements are aligned, with terminology adjusted for the cooperative structure.

The Act applies to deposit accounts held by natural persons primarily for personal, family, or household purposes. Business deposit accounts are not subject to TISA. The Act applies to insured depository institutions; non-bank account products that operate through a partner bank are subject to TISA at the bank-account level.

What must be disclosed at account opening

Regulation DD §1030.4 specifies the account disclosures that must be given before or at account opening. The required content includes:

• Rate information: the annual percentage yield, the interest rate, and whether the rate is fixed or variable. For variable rates, the disclosure must identify the index, the margin, the timing of rate changes, and any limits on how the rate can change.
• Compounding and crediting: how often interest is compounded (continuous, daily, monthly, etc.) and how often it is credited to the account.
• Balance information: any minimum balance required to open the account, to avoid fees, or to earn the disclosed APY. The method used to determine the balance (daily balance method versus average daily balance method) must be specified.
• Fees: the amount of each fee that may be charged in connection with the account, and the conditions under which each fee may be imposed.
• Transaction limitations: any restrictions on transactions, such as limits on the number or amount of certain withdrawals.
• Term and renewal information: for time deposits (CDs), the maturity date, the early-withdrawal penalty, the renewal policy, and any rate-change provisions.
• Bonus information: for promotional bonuses, the bonus amount, the conditions to earn it, and the date by which conditions must be met.

The disclosures must be in writing, in a form the consumer can keep. Electronic delivery is permitted under the Electronic Signatures in Global and National Commerce Act if the consumer has consented to electronic delivery and the disclosures comply with the E-Sign Act's specific requirements.

The APY methodology

One of TISA's most important contributions was standardizing the APY calculation. Before TISA, the same nominal rate compounded at the same frequency could be advertised as several different yields depending on which formula the bank used. Regulation DD's Appendix A specifies a single formula: APY equals (1 + interest earned ÷ principal) raised to (365 ÷ days in term) minus 1. For an account with a constant balance compounded n times per year at a nominal rate r/n, the formula reduces to (1 + r/n)ⁿ − 1.

The formula treats all banks identically and produces a single comparable figure. The companion requirement that APY appear prominently in advertising (any printed or electronic advertisement that states the interest rate must also state the APY, in equal or greater prominence) closed the loophole through which a bank might quote a high nominal rate without acknowledging that the same nominal rate compounded less frequently would produce a lower actual yield.

What must appear on periodic statements

Section 1030.6 of Regulation DD requires that periodic statements for interest-bearing accounts include:

• The APY earned during the statement period (the "APY Earned" line), calculated under the methodology in Appendix A based on the actual interest paid and the days in the cycle.
• The dollar amount of interest earned during the cycle.
• Any fees imposed during the cycle, by category (overdraft fees and NSF fees must be disclosed separately under §1030.11).
• The total dollar amount of fees imposed year-to-date for the calendar year (for the categories of fees subject to the separate disclosure requirement).
• The number of days in the statement period.

The year-to-date fee disclosure is one of the most-overlooked features of the periodic statement; it is the place where a consumer can see, in a single number, how much they have paid in overdraft fees, NSF fees, and similar charges during the year. For consumers experiencing recurring overdraft activity, this figure is the most direct evidence of the account's actual cost.

Advertising rules

Section 1030.8 governs advertising. The principal requirements are that any advertised rate must state the APY and use that abbreviation; if a bonus is advertised, the conditions to earn it must be stated; tiered-rate accounts must state the APY for each tier; and any promotional rate must clearly indicate its limited duration and the rate that will apply afterward. The bank may not use words or symbols that misrepresent or obscure the terms of the account.

The advertising rules apply to internet and mobile advertising as well as to print and broadcast. Banner ads, social-media posts, and in-app marketing that quote a rate must include the APY and the material terms in a manner reasonably noticeable to the audience. Compliance with the advertising rules in mobile and social contexts has been a recurring CFPB supervisory focus.

Change-in-terms and overdraft disclosure

Section 1030.5 requires that a bank give 30 days' advance notice before a change in any disclosed term that may reduce the APY or adversely affect the consumer. Changes that benefit the consumer (a fee reduction, a rate increase) do not require advance notice. The notice may be a separate document or may be included on or with a periodic statement; it must specifically identify the term being changed and the effective date.

Section 1030.11 — added in 2009 as one of the post-overdraft-crisis reforms — requires that periodic statements separately disclose, for the cycle and year-to-date, the total fees charged for overdrafts and for items returned unpaid (NSF). This disclosure was deliberately structured to make overdraft costs salient in a way the old aggregated-fee line did not. The requirement applies to all institutions covered by Regulation DD; the underlying overdraft economics are described in overdraft fees, in detail.

Common compliance failures

The most-frequent TISA compliance findings in supervisory examinations cluster in a few areas:

• APY computation errors, particularly on tiered-rate accounts where the bank applies a single rate across the entire balance rather than tiering it correctly.
• Failure to disclose the conditions required to earn a promotional APY, or failure to clearly indicate the rate that will apply after the promotional period.
• Failure to give 30-day advance notice of fee increases or APY reductions.
• Inaccurate or missing APY Earned disclosures on periodic statements.
• Advertising rate without APY, or with APY less prominently displayed than the rate.
• Failure to disclose minimum-balance computation methods correctly.

CFPB consent orders for TISA violations have produced consumer-restitution awards in the tens of millions of dollars at large institutions over the past decade. The cumulative supervisory pressure has substantially improved compliance at the largest banks; community banks and credit unions handle TISA compliance with varying degrees of sophistication.

Enforcement and consumer remedies

TISA does not provide for a private right of action — a consumer cannot sue a bank directly for a TISA violation. Enforcement is by the CFPB (for banks above $10 billion in assets) and by the prudential regulators (OCC, Fed, FDIC, NCUA) for smaller institutions. State attorneys general can also bring actions under their own state UDAP statutes for conduct that constitutes a TISA violation.

For a consumer, the practical remedy when a TISA violation has caused a quantifiable loss (a fee that should not have been charged, interest that was understated) is to escalate to the bank in writing, file a CFPB complaint at the same time, and (if the loss is substantial and the bank refuses to remediate) consider state-attorney-general or small-claims-court action. The supervisory channel is more effective at producing patterns-and-practices remediation; for an individual consumer, the bank's response to a clear and well-documented complaint is typically the fastest path to a refund.

Limits and uncertainty

The Truth in Savings Act's core requirements have been stable since 1991, with the principal amendments being the 2009 separate overdraft-fee disclosure and the 2011 transfer of rulewriting authority from the Federal Reserve to the CFPB. CFPB enforcement priorities under TISA have varied with administration; recent supervisory attention to digital and mobile rate disclosures suggests continued scrutiny. The substantive APY methodology and disclosure-content rules are durable. Where this site cites a specific dollar threshold (the $10 billion supervisory threshold, for example), readers should confirm the current figure, although these have rarely changed.