What an overdraft is, and what it costs

An overdraft happens when your account does not hold enough money for a transaction and the bank or credit union pays it anyway. You then owe the overdrawn amount plus any overdraft fee. [1]

The fee is the sharp part. Many banks and credit unions charge $30 or more per transaction. [1] Some institutions can charge more than one fee in a single day, though some set a daily maximum. [1] One small slip can turn into several charges.

This piece covers two ways to cover a shortfall without the standard fee: a linked savings account and an overdraft line of credit. It is general education, not legal or financial advice.

A quiet close-up of an open rulebook on a sunlit wooden desk with a pencil resting beside it, conveying a calm, unhurried pace.
An open rulebook and a pencil on a desk, a reminder to read the fee rules before a shortfall happens.

Three options the CFPB points to

The Consumer Financial Protection Bureau lists three things to consider. You can opt out of debit card and ATM overdraft coverage. You can link checking to a savings account. Or you can ask whether you qualify for a line of credit tied to overdraft coverage. [1]

Opting out is the simplest. Without coverage, a debit purchase or ATM withdrawal is generally declined, and no overdraft fee applies. [1] Institutions also cannot charge for ATM overdrafts unless you have opted in. [1] The cost is a declined card at the register.

Savings transfer versus line of credit

The two covering options work differently. With a savings link, money moves from savings to cover the checking shortfall. With a credit line, the shortfall is covered by borrowing. [1]

A savings transfer may carry a transfer fee. The CFPB describes it as less than the overdraft fee. [1] A credit line may carry a fee when it is tapped, plus interest on what you borrowed. The same source says that can still cost less than an overdraft for a brief shortfall. [1]

Here is a rough contrast, based only on what the CFPB page says:

  • Savings transfer: uses your own money, and a transfer fee may apply.
  • Line of credit: borrowed money, with a possible fee and interest.

The sources do not give interest rates or fee amounts for either option. They also do not compare yearly cost for a typical household, and they do not explain how a credit line affects credit reports or scores. Ask your institution for its own numbers.

What the rules say right now

The CFPB states that its overdraft rule for very large institutions was disapproved by Congress and has no force or effect. The rest of Regulations E and Z remain in force. [5] Regulation E includes a section on overdraft services, § 1005.17. [2] The sources supplied here do not reproduce its text, so this article does not explain its requirements. The FDIC also publishes an exam manual section on overdraft payment programs for those who want the regulator's view. [3]

One commercial blog says there is no federal cap on overdraft fees as of 2026, and banks set their own. [4] That is a company blog, not a regulator, so treat it as a commentary.

Sources also disagree on the date Congress's resolution was signed, May 9 or May 12, 2025. [4][5] This article leaves the date out.

Questions to ask your bank

Start with the fee schedule. Search the institution's site for its personal deposit account agreement or fee schedule. [4] Then ask a few direct questions.

  1. What is the current overdraft fee, the daily maximum, and the no-fee cushion?
  2. Do I qualify for a line of credit linked to overdraft coverage, and what fee applies when it is used?
  3. Does a transfer fee apply when savings covers a checking overdraft?

The cushion matters as much as the headline fee. It is how far the account can go negative before a fee triggers. One commercial source notes that a drop from $50 to $20 makes small shortfalls costly. [4] Also check whether voluntary features such as grace periods, small-amount thresholds, daily caps, or early direct deposit are available and turned on. [4]

Red flags and the bigger numbers

Watch for repeated fees in one day when no daily maximum applies. [1] Watch for fee schedules that changed since you last looked. A commercial blog and an advocacy brief both say some banks raised fees and trimmed cushions after federal pressure eased. [4][6]

The advocacy group NCLC reports that banks and credit unions collected over $12 billion in overdraft and NSF fees in 2025, and that about a quarter of people live in households that pay overdraft fees each year. [6] The commercial blog and the NCLC brief say the CFPB rule was estimated to save about $5 billion a year, roughly $225 per household that pays. [4][6] These are advocacy and commercial figures, not regulator data. Check them against primary sources before you rely on them.

Please seek a professional. This article is general information, not financial, tax or insurance advice. Please seek a licensed financial, tax or insurance professional about your own situation.