How to Choose Between a 401(k) Loan vs. Personal Loan

When you need money fast, two of the most common options people consider are borrowing from their 401(k) or taking out a personal loan.

Both can get you cash relatively quickly, but they work in very different ways and come with very different consequences.

In this post, we'll walk through how each option works, what they cost, and which one makes sense depending on your financial situation. Let's jump in.

401(k) loan vs. personal loan: which should you choose?

The right choice depends mainly on your credit profile, how urgently you need funds, and how comfortable you are pausing your retirement growth.

A 401(k) loan is generally the better option if your credit is poor and you need a lower interest rate. A personal loan is usually the smarter move if you have decent credit and want to protect your long-term retirement savings.

What is a 401(k) loan?

A 401(k) loan is effectively borrowing money from your own retirement account, with a promise to pay it back with interest. Unlike a withdrawal, a 401(k) loan does not trigger income taxes or the 10% early withdrawal penalty, as long as you repay it on time.

Repayment typically happens through automatic payroll deductions over a period of up to five years. The real cost is the lost investment growth on the money you borrowed.

What is a personal loan?

A personal loan is effectively a fixed-sum loan from a bank, credit union, or online lender that you repay in monthly installments over a set term. Personal loans are unsecured, and lenders mainly use your credit score, income, and debt-to-income ratio to determine your eligibility and interest rate.

Luckily, personal loans are widely available and can often be funded within one to three business days. Shop around and compare APRs, not just monthly payment amounts.

Key differences between a 401(k) loan and a personal loan

The interest rate on a 401(k) loan is usually set at the prime rate plus one or two percentage points, which is typically much lower than what most personal loan lenders offer.

A 401(k) loan does not require a credit check and does not appear on your credit report, so it won't help or hurt your credit score.

A personal loan requires a hard inquiry at the time of application. On the positive side, making on-time payments on a personal loan actively builds your payment history over time.

If you're working on your credit, pairing financial tools like a Kikoff plan with on-time personal loan payments can compound your credit-building progress.

When a 401(k) loan makes sense

A 401(k) loan makes the most sense when your credit score is too low to qualify for a reasonable personal loan rate. The shorter the loan term, the less retirement growth you sacrifice.

If you're looking to get a personal loan with bad credit, see our guide on how to get a personal loan with bad credit.

When a personal loan makes sense

A personal loan is usually the smarter path if you have a credit score that qualifies you for a competitive rate. Every on-time payment gets reported to the credit bureaus, building your payment history over the life of the loan.

Lots of lenders now offer prequalification with a soft credit inquiry, so you can check your likely rate before formally applying without impacting your credit score.

How your credit score affects your personal loan options

Your credit score is the single most important factor in determining what kind of personal loan rate you'll qualify for.

Tools like Kikoff help users build credit by reporting on-time payments to all three major credit bureaus, which can move your score meaningfully within a few months of consistent use.

Conclusion

Choosing between a 401(k) loan and a personal loan comes down to your credit situation, your job stability, and how much risk you're willing to accept with your retirement savings.

Either way, building and maintaining strong credit gives you more options and better rates in every borrowing situation. Kikoff is a simple, low-cost way to build credit by reporting on-time payments to all three major credit bureaus, starting at just $5 a month.