LOC Updated 8 min read By TrustCedar Rate Desk
Personal Loan vs. Personal Line of Credit
A line of credit charges interest only on what you draw, which suits a project whose costs arrive in stages or are not known yet. A personal loan suits one known cost, with a payment and rate that cannot change.
- Prime rate, lines are often tied to it
- 7.00% (Nov 6, 2026)
- Fed funds target range
- 3.75%–4.00%
- Staged $12,000: line saves
- About $420 (example)
- Notice before a term change
- 45 days (Reg Z)
The bottom line
A personal line of credit is open-end credit: you get a limit, draw what you need during a draw period, and pay interest only on the balance you use. Its rate is usually variable, tied to the prime rate, which has been 7.00% since the Fed's September 2026 increase. A personal loan pays out once and usually carries a fixed rate. For a $12,000 project paid in three stages, a line at an example 13% costs about $2,685 in interest over three years against about $3,104 in interest and fee for a 12% loan with a 5% fee. If prime were two points higher throughout, the line would cost about the same as the loan.
The two tools side by side
Regulation Z defines open-end credit as a plan where the lender expects repeated transactions, may charge interest from time to time on the unpaid balance, and makes credit available again as you repay it. An unsecured personal line of credit fits that description. A personal loan is closed-end: one amount, one schedule, one end date.
| Feature | Personal loan | Personal line of credit |
|---|---|---|
| Cost | Interest on the full amount from day one; bank average 11.90% APR (Q3 2026) | Interest only on what you have drawn |
| Rate type | Usually fixed | Usually variable: an index such as prime plus a margin |
| Term and payoff | Equal payments to a set end date | Draw period, then repayment; payments change with the balance and rate |
| Fees | Origination fee at some lenders | Listed in the account-opening disclosures |
| What is at risk | Nothing pledged (unsecured) | Nothing pledged (unsecured); rate risk |
| Speed | One payout after approval | Draw when you need it, up to the limit |
| Credit effect | Hard inquiry; installment account | Hard inquiry; revolving account that can count toward utilization |
A line secured by your home is a different product with different rules; see personal loan vs. HELOC.
How a variable line is priced
Most variable lines add a fixed margin to an index. The usual index is the prime rate, which banks set at the top of the federal funds target range plus three points. The FOMC raised that range by a quarter point to 3.75%–4.00% on September 16, 2026 and held it on October 28, 2026, and prime has been 7.00% since the September move. A line priced at prime plus 6 is 13.00% today; if prime rises a quarter point, so does the line, on the balance you already owe.
Regulation Z requires the lender to tell you before you use the line that the rate can increase and how it is set, including the margin. For a significant change in terms, it must send written notice at least 45 days ahead. A rate change that simply follows a public index under your agreement needs no advance notice, so a prime increase reaches your bill without a letter. For more on the index, read the prime rate explained.
One quarter point is small on a single bill. On $12,000 repaid over 27 months, going from 13% to 13.25% raises the payment from about $514.99 to $516.41, or about $38 over the whole repayment. A full point adds about $5.70 a month. The risk is in the sum of moves: a line opened today has no cap on how far prime can travel over three years unless the agreement sets one, so read whether yours has a ceiling rate. A fixed-rate loan carries none of this risk, but it charges for the certainty through interest on the full amount from the first day and, at some lenders, an up-front fee.
A worked example: a staged $12,000 project
Take a $12,000 home project paid in three stages of $4,000, at the start of months 1, 4 and 7. Route one is a 36-month personal loan at 12% with a 5% fee taken from the proceeds: you borrow about $12,632 up front to receive $12,000, and interest runs on all of it from day one. Route two is a line at an example 13% (prime plus 6). You pay interest only on what you have drawn for nine months, then repay the $12,000 over the remaining 27 months, so both routes end at month 36.
| Cost line | Loan at 12%, 5% fee | Line at 13%, no fee |
|---|---|---|
| Payment, months 1–9 | $419.55 | $43.33, then $86.67, then $130 (interest only) |
| Payment, months 10–36 | $419.55 | $514.99 |
| Interest | About $2,472 | About $2,685 |
| Fee | About $632 | None in this example |
| Total cost | About $3,104 | About $2,685 |
The line saves about $420 here, mostly because it charges nothing on money you have not drawn and has no fee. Two things can change that. If prime had been two points higher for the whole period, putting the line at 15%, its cost would rise to about $3,113, the same as the loan. If the project came in at $9,000, the line would cost about $2,014, while the loan's fee and interest on the full amount would already be set. Check a rate move on your own numbers with the rate change calculator.
When the line wins, and when the loan does
The line wins when
Costs arrive in stages or the total is uncertain: a renovation, a move between two homes, a stretch of medical bills. You pay interest only on what you use, and if the job comes in under budget, you never borrow the rest.
The personal loan wins when
You know the cost and need it all at once, you want a payment that cannot change, or you expect rates could rise. In October 2026, two FOMC members preferred another quarter-point increase; a fixed rate takes that risk off your budget.
A line also needs more discipline. Credit that refills as you repay can be drawn again, which works like a credit card with a lower rate. If that sounds risky for you, compare personal loan vs. credit card, where the same trap applies.
The main trap, and a checklist
The trap is the interest-only phase. Low payments during the draw period feel like a cheap loan, but the principal has not moved. When repayment starts, the payment jumps, in our example from $130 to about $515, and a higher prime by then makes it larger still. Plan for the repayment payment from the day you open the line. The second trap is the open limit. When the project ends, the line is still there, and a balance you pay down can be drawn again for something else. If you do not need the line after the project, ask the lender how to close it or lower the limit once the balance is repaid.
- Write down the index and the margin from the account-opening disclosures, and work out today's rate.
- Find the draw period, the repayment period and the minimum payment in each phase.
- Price the repayment payment at a higher rate, such as two points above today's, and check that it still fits.
- List every fee the disclosures show, and compare the total with a loan's origination fee.
- Pick the loan if the cost is known and you would rather lock the rate now.
Sources
- Regulation Z, 12 CFR 1026.2: Definitions, including open-end credit (CFPB)
- Regulation Z, 12 CFR 1026.6: Account-opening disclosures (CFPB)
- Regulation Z, 12 CFR 1026.9: Subsequent disclosure requirements, including change-in-terms notices (CFPB)
- Federal Reserve, FOMC statement, October 28, 2026
- Federal Reserve H.15, bank prime loan rate (FRED series DPRIME)
- Federal Reserve, G.19 Consumer Credit release, November 6, 2026
We checked the facts on this page against these sources on November 11, 2026. The $12,000 example uses the standard amortization formula and monthly interest at APR ÷ 12; the 13% line rate, its 6-point margin and the loan's 12% rate and 5% fee are illustrations, not offers.
Reader questions
Is a personal line of credit the same as a credit card?
Both are open-end credit with a limit you can reuse as you repay, and both usually carry variable rates. How you draw money, how long the draw period lasts and how repayment works depend on the line's agreement.
Will my line of credit rate go up if the Fed raises rates?
If the rate is tied to prime, yes: prime follows the federal funds range, and your rate follows prime on the balance you owe. A fixed-rate personal loan does not change after you sign. See the prime rate explained.
Does an unused line of credit cost anything?
No interest is charged on money you have not drawn. Some lines may carry fees regardless of use; the account-opening disclosures list them.
Which is better for a home project?
For staged or uncertain costs, a line can cost less. For one fixed price with a set start date, a loan gives a payment that cannot change. If you own your home, also compare a HELOC.
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