Short answer: an overdraft line of credit is a credit account linked to your checking account. When checking runs short, money moves from the line to cover the transaction, and you repay it with interest and any disclosed fees. It is open-end credit under Regulation Z, so you can borrow again as you repay. A personal loan is a set amount with a payment schedule and an end date. Compare the APR, the fees and the total paid. This is general information, not legal or financial advice.
What an overdraft line of credit is
The CFPB says overdrafts “can also be covered through a transfer of funds from a linked account, credit card, or line of credit”, and that when shopping for a checking account you should “ask what the account terms are with respect to the cost of overdraft protection, a linked account or a line of credit” (CFPB, page last modified February 7, 2024, read October 30, 2026).
Regulation Z calls this kind of plan open-end credit: the creditor “reasonably contemplates repeated transactions”, “may impose a finance charge from time to time on an outstanding unpaid balance”, and credit “is generally made available to the extent that any outstanding balance is repaid” (12 CFR 1026.2(a)(20), eCFR, text up to date as of October 28, 2026, read October 30, 2026). For how open-end credit differs from a loan with a fixed schedule, see installment loan vs line of credit.
Not the same as an overdraft fee program
Regulation E’s opt-in rule for overdraft fees on ATM and one-time debit card transactions covers an “overdraft service”. That term “does not include any payment of overdrafts pursuant to” a “line of credit subject to Regulation Z (12 CFR part 1026), including transfers from a credit card account, home equity line of credit, or overdraft line of credit” (12 CFR 1005.17(a)(1), eCFR, read October 30, 2026). Transfers from a linked savings account are left out too (1005.17(a)(2)). So an overdraft line of credit follows the credit rules in Regulation Z, not the overdraft opt-in rule. For overdraft fees themselves, see overdraft fees vs a small loan.
The disclosures you get
As open-end credit, Regulation Z says the creditor “shall furnish account-opening disclosures required by § 1026.6 before the first transaction is made under the plan” (12 CFR 1026.5(b)(1)(i), eCFR, read October 30, 2026). It also “shall mail or deliver a periodic statement” for each billing cycle with a balance of more than $1 or a finance charge (1026.5(b)(2)(i)). The account-opening disclosures include the annual percentage rate and fees listed in 12 CFR 1026.6(b)(2) (eCFR). Check these before you rely on the line.
Fees and interest
For a credit card linked to checking, the CFPB says “you can be charged a fee if the fee was disclosed to you”, and that the transfer “will probably be considered a cash advance”, with interest charged right away at the cash advance APR (CFPB, page last modified June 6, 2023, read October 30, 2026; that page is from 2023 and may be outdated). For a separate overdraft line, your account-opening disclosures show its rate and fees. See credit card cash advance vs personal loan.
How the two compare
| Overdraft line of credit | Personal loan | |
|---|---|---|
| Type of credit | Open-end: you can borrow again as you repay (1026.2(a)(20)) | A set amount with a payment schedule |
| How you get the money | Moves to checking when the account runs short | Paid out once, after you sign |
| What you receive | Account-opening disclosures and periodic statements (1026.5(b)) | Truth in Lending disclosures before you are bound (1026.17(b)) |
| Payment and end date | Ask the lender how the minimum payment is set | Fixed number of payments in the loan terms |
For the loan disclosures, see personal loan APR vs interest rate.
Questions to ask your bank or credit union
- What is the APR on the overdraft line, and is it fixed or variable?
- Is there a fee each time money moves to checking? An annual fee?
- How is the minimum payment set, and is it taken from my checking account?
- What is the credit limit, and can it change?
- If I link a credit card instead, is each transfer treated as a cash advance?
- What happens if a transaction is larger than the credit left on the line?
A $2,000 balance, only for the math
This example is only for the math, not a typical balance or a rate any lender quoted. The Federal Reserve’s G.19 does not report a rate for overdraft lines of credit, so the 18.00% row is an example figure only. The personal loan row uses the August 2026 average of 11.90% APR for 24-month personal loans (G.19). Both rows assume $2,000 repaid in 24 equal monthly payments with no fees; your line sets its own payment terms.
| Option | Monthly payment | Interest | Total paid |
|---|---|---|---|
| Overdraft line at 18.00% (example figure), 24 months | $99.85 | $396.40 | $2,396.40 |
| Personal loan at 11.90%, 24 months | $94.05 | $257.20 | $2,257.20 |
$99.85 x 24 = $2,396.40, and $94.05 x 24 = $2,257.20. Your rate depends on your credit and the lender, and fees raise the cost. Compare the APR, the fees and the total paid on the written terms for each option.
Checklist
- Read the account-opening disclosures for the line before you use it.
- Ask about transfer fees, annual fees and how the minimum payment is set.
- Check each periodic statement for interest and fees.
- Compare the APR and total paid with a personal loan quote.
- Keep track of what is left on the line.
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Sources
- CFPB: What is an overdraft? (page last modified February 7, 2024)
- CFPB: If I link my credit card to my checking account to cover overdrafts, can the bank/credit union charge me a fee each time I use it to cover an overdraft? (page last modified June 6, 2023)
- eCFR: 12 CFR 1026.2, Definitions and rules of construction (Regulation Z), current text up to date as of October 28, 2026
- eCFR: 12 CFR 1005.17, Requirements for overdraft services (Regulation E), current text up to date as of October 28, 2026
- eCFR: 12 CFR 1026.5, General disclosure requirements (Regulation Z), current text up to date as of October 28, 2026
- eCFR: 12 CFR 1026.6, Account-opening disclosures (Regulation Z), current text up to date as of October 28, 2026
- eCFR: 12 CFR 1026.17, General disclosure requirements (Regulation Z), current text up to date as of October 28, 2026
- Federal Reserve: G.19 Consumer Credit (released October 7, 2026), terms of credit, August 2026: credit card plans and 24-month personal loans
Disclosure: Modern Lending Solutions is not a lender, loan broker or agent for any lender or loan broker, and does not make credit decisions. Any compensation we receive is paid by participating lenders, only for advertising services. This guide is general information, not financial or legal advice.