Fidelity 401(k) Loan Calculator – Estimate Your Repayments


Fidelity 401(k) Loan Calculator

Estimate Your Fidelity 401(k) Loan Repayments

Use this Fidelity 401(k) Loan Calculator to understand the potential costs and repayment schedule of borrowing from your retirement savings.



Your current vested balance determines the maximum loan amount you can take.


The amount you wish to borrow. Maximum is typically $50,000 or 50% of your vested balance, whichever is less.


The interest rate charged on your 401(k) loan, typically Prime Rate + 1%.


The repayment period for your loan, usually up to 5 years (or 15 for a primary home purchase).


A one-time fee charged by your plan administrator (e.g., Fidelity) for processing the loan.


How often your loan payments will be deducted from your paycheck.


Your Estimated Fidelity 401(k) Loan Details

$0.00 Monthly Payment
Maximum Eligible Loan:
Actual Loan Principal:
Estimated Per-Payroll Payment:
Total Interest Paid:
Total Amount Repaid (Principal + Interest + Fees):

Formula Used: The monthly payment is calculated using the standard loan amortization formula: M = P [ i(1 + i)^n ] / [ (1 + i)^n – 1], where M is the monthly payment, P is the principal loan amount, i is the monthly interest rate, and n is the total number of payments.

Estimated Amortization Schedule


Payment # Beginning Balance Interest Paid Principal Paid Ending Balance

Table 1: Detailed breakdown of principal and interest payments over the loan term.

Loan Balance Over Time

Remaining Principal
Total Interest Paid

Figure 1: Visual representation of your loan’s remaining principal balance and cumulative interest paid over the repayment period.

What is a Fidelity 401(k) Loan?

A Fidelity 401(k) loan calculator is a tool designed to help you estimate the costs and repayment schedule when borrowing money from your 401(k) retirement account, often administered by providers like Fidelity. Unlike a traditional loan from a bank, when you take a 401(k) loan, you are essentially borrowing money from yourself. The interest you pay on the loan goes back into your own 401(k) account, rather than to a financial institution. This can make it an attractive option for short-term financial needs, as it avoids credit checks and often has lower interest rates than personal loans or credit cards.

Who Should Consider a Fidelity 401(k) Loan?

  • Individuals with immediate, short-term financial needs: If you need funds for an emergency, a down payment, or debt consolidation and have exhausted other, cheaper options.
  • Those who can reliably repay the loan: Since repayments are typically deducted directly from your paycheck, a stable employment situation is crucial.
  • People looking to avoid high-interest debt: A 401(k) loan can be a better alternative to credit card debt or high-interest personal loans.

Common Misconceptions About Fidelity 401(k) Loans

  • It’s “free money”: While the interest goes back to you, the money is removed from your investment portfolio, potentially missing out on market gains. This is known as “opportunity cost.”
  • No risk involved: If you leave your job (voluntarily or involuntarily) and cannot repay the loan by the due date (usually 60-90 days), the outstanding balance is treated as a taxable withdrawal and may incur a 10% early withdrawal penalty if you’re under 59½.
  • It’s always better than other loans: While often true for high-interest debt, a 401(k) loan should be compared carefully with other low-interest options, considering the impact on your retirement savings.

Fidelity 401(k) Loan Formula and Mathematical Explanation

The core of any Fidelity 401(k) loan calculator is the amortization formula, which determines your regular payment amount. This formula ensures that each payment covers both the interest accrued and a portion of the principal, gradually reducing your loan balance over time.

Step-by-Step Derivation of Monthly Payment

The standard formula for calculating the monthly payment (M) on an amortized loan is:

M = P [ i(1 + i)^n ] / [ (1 + i)^n – 1]

Let’s break down the variables:

  1. Determine the Principal (P): This is the actual loan amount you receive after any origination fees. It’s also capped by IRS rules (typically the lesser of $50,000 or 50% of your vested account balance).
  2. Calculate the Monthly Interest Rate (i): Your annual interest rate (e.g., 6%) needs to be converted to a monthly rate and expressed as a decimal. So, i = (Annual Interest Rate / 100) / 12.
  3. Determine the Total Number of Payments (n): This is your loan term in years multiplied by 12 (months per year). So, n = Loan Term (Years) * 12.
  4. Apply the Formula: Plug P, i, and n into the formula to find M.

Variables Table

Variable Meaning Unit Typical Range
P Principal Loan Amount Dollars ($) $1,000 – $50,000
i Monthly Interest Rate Decimal 0.0025 – 0.015 (3% – 18% annual)
n Total Number of Payments Months 12 – 60 (1-5 years), up to 180 (15 years for home purchase)
M Monthly Payment Dollars ($) Varies based on P, i, n
Vested Balance Your current vested 401(k) balance Dollars ($) $10,000 – $1,000,000+
Origination Fee One-time fee for loan processing Dollars ($) $0 – $100

Practical Examples (Real-World Use Cases)

Let’s look at how a Fidelity 401(k) loan calculator can help you understand different scenarios.

Example 1: Short-Term Emergency Loan

Sarah needs $10,000 for an unexpected home repair. Her vested 401(k) balance is $80,000. She wants to repay it quickly.

  • Vested 401(k) Balance: $80,000
  • Loan Amount Requested: $10,000
  • Annual Interest Rate: 5.0%
  • Loan Term: 3 years (36 months)
  • Loan Origination Fee: $50
  • Payroll Frequency: Bi-Weekly

Calculator Output:

  • Maximum Eligible Loan: $40,000 (50% of $80,000)
  • Actual Loan Principal: $10,000
  • Monthly Payment: $299.71
  • Estimated Per-Payroll Payment: $138.33 (approx. $299.71 / 2.1667)
  • Total Interest Paid: $789.56
  • Total Amount Repaid: $10,839.56 ($10,000 Principal + $789.56 Interest + $50 Fee)

Financial Interpretation: Sarah’s monthly payment is manageable, and the total interest is relatively low compared to other loan types. She repays herself, and the interest goes back into her 401(k). The loan is well within her eligible limit.

Example 2: Larger Loan for Debt Consolidation

David wants to consolidate $30,000 of high-interest credit card debt. His vested 401(k) balance is $120,000.

  • Vested 401(k) Balance: $120,000
  • Loan Amount Requested: $30,000
  • Annual Interest Rate: 6.5%
  • Loan Term: 5 years (60 months)
  • Loan Origination Fee: $75
  • Payroll Frequency: Monthly

Calculator Output:

  • Maximum Eligible Loan: $50,000 (capped at $50,000, not 50% of $120,000 which would be $60,000)
  • Actual Loan Principal: $30,000
  • Monthly Payment: $586.50
  • Estimated Per-Payroll Payment: $586.50
  • Total Interest Paid: $5,190.00
  • Total Amount Repaid: $35,265.00 ($30,000 Principal + $5,190.00 Interest + $75 Fee)

Financial Interpretation: David’s loan is within the IRS limits. By using a Fidelity 401(k) loan calculator, he sees that his monthly payment is $586.50, which is likely much lower than his combined credit card payments. The total interest paid is significant but still potentially less than what he would have paid on high-interest credit cards. He needs to ensure he can consistently make these payments for five years.

How to Use This Fidelity 401(k) Loan Calculator

Our Fidelity 401(k) Loan Calculator is designed for ease of use, providing clear estimates for your potential loan.

Step-by-Step Instructions

  1. Enter Your Current Vested 401(k) Balance: Input the total amount of money you have in your 401(k) that you are fully entitled to. This determines your maximum borrowing capacity.
  2. Input Your Desired Loan Amount: Enter the amount you wish to borrow. The calculator will automatically cap this at the IRS maximum ($50,000 or 50% of your vested balance, whichever is less).
  3. Specify the Annual Interest Rate: This is the rate your plan charges. It’s typically the Prime Rate plus 1% or 2%. Check with your plan administrator (e.g., Fidelity) for the exact rate.
  4. Choose Your Loan Term (Years): Select how many years you plan to take to repay the loan. Most plans allow up to 5 years, but up to 15 years for a primary home purchase.
  5. Add Any Loan Origination Fee: Some plans charge a one-time fee to process the loan. Enter this amount if applicable.
  6. Select Your Payroll Frequency: Choose how often you get paid (and thus how often payments will be deducted).
  7. Click “Calculate Loan”: The calculator will instantly display your results.

How to Read the Results

  • Monthly Payment: This is the primary highlighted result, showing the total amount you’ll pay each month.
  • Maximum Eligible Loan: This tells you the highest amount you could borrow based on your vested balance and IRS limits.
  • Actual Loan Principal: The final amount you are borrowing, after considering your request and eligibility limits.
  • Estimated Per-Payroll Payment: Your actual deduction amount per paycheck, based on your chosen payroll frequency.
  • Total Interest Paid: The cumulative interest you will pay back to your own 401(k) account over the loan term.
  • Total Amount Repaid: The sum of your principal, total interest, and any origination fees.
  • Amortization Schedule: A detailed table showing how each payment is split between principal and interest, and your remaining balance.
  • Loan Balance Over Time Chart: A visual representation of your loan’s progress, showing the declining principal and accumulating interest.

Decision-Making Guidance

Using this Fidelity 401(k) loan calculator helps you assess affordability. Consider if the monthly or per-payroll payment fits comfortably within your budget. Evaluate the total interest paid and compare it to the potential investment gains you might miss out on. Always weigh the benefits of immediate access to funds against the long-term impact on your retirement savings.

Key Factors That Affect Fidelity 401(k) Loan Results

Several critical factors influence the outcome of a Fidelity 401(k) loan calculator and the overall financial impact of borrowing from your retirement account.

  • Current Vested 401(k) Balance: This is fundamental because IRS rules limit your loan to the lesser of $50,000 or 50% of your vested account balance. A higher vested balance allows for a larger potential loan.
  • Annual Interest Rate: While the interest goes back to your account, a higher rate means higher monthly payments and more money diverted from your current cash flow. Fidelity typically sets this rate, often tied to the Prime Rate.
  • Loan Term (Repayment Period): A longer term results in lower monthly payments but increases the total interest paid over the life of the loan. Conversely, a shorter term means higher payments but less total interest. The maximum term is usually 5 years, or 15 years for a primary residence purchase.
  • Loan Origination Fees: These are one-time administrative costs charged by your plan administrator (like Fidelity). While often small, they add to the total cost of the loan.
  • Payroll Frequency: This affects the frequency and size of your individual paycheck deductions. More frequent payrolls (e.g., bi-weekly) mean smaller, more manageable deductions, but the total monthly payment remains the same.
  • Opportunity Cost: This is a crucial, often overlooked factor. The money you borrow is removed from your 401(k) and stops growing through investments. If the market performs well during your repayment period, you miss out on those potential gains. This is a significant risk that a simple Fidelity 401(k) loan calculator cannot directly quantify but must be considered.
  • Tax Implications of Default: If you fail to repay the loan, especially after leaving your job, the outstanding balance is treated as a taxable distribution. This means you’ll owe income tax on the amount, and if you’re under 59½, a 10% early withdrawal penalty may also apply. This can severely impact your retirement savings.
  • Impact on Future Contributions: While repaying a 401(k) loan, some individuals find it challenging to continue making new contributions to their 401(k). This can further slow down your retirement savings growth.

Frequently Asked Questions (FAQ)

Q1: What are the typical limits for a Fidelity 401(k) loan?

A: Generally, you can borrow up to 50% of your vested account balance, with a maximum of $50,000. If your vested balance is less than $10,000, you may be able to borrow up to $10,000, even if it exceeds 50% of your balance. Always confirm specific rules with your plan administrator or Fidelity.

Q2: Does the interest I pay on a 401(k) loan go to Fidelity?

A: No, the interest you pay on a 401(k) loan goes back into your own 401(k) account. Fidelity acts as the administrator, but you are essentially paying yourself back with interest.

Q3: What happens if I leave my job with an outstanding 401(k) loan?

A: If you leave your job (voluntarily or involuntarily), you typically have a short period (often 60 or 90 days) to repay the outstanding loan balance in full. If you don’t, the remaining balance is considered a taxable distribution, subject to income tax and potentially a 10% early withdrawal penalty if you’re under 59½.

Q4: Are 401(k) loan payments tax-deductible?

A: No, 401(k) loan payments are not tax-deductible. You are repaying yourself with after-tax dollars, and when you eventually withdraw the money in retirement, it will be taxed again (unless it’s a Roth 401(k)). This is sometimes referred to as “double taxation.”

Q5: Can I take multiple 401(k) loans from Fidelity?

A: Some plans allow multiple loans, while others restrict it to one at a time. Even if allowed, the total outstanding balance across all loans cannot exceed the IRS limits ($50,000 or 50% of vested balance). Check your specific plan rules.

Q6: How does a 401(k) loan affect my credit score?

A: A 401(k) loan does not typically appear on your credit report, and therefore, it does not directly impact your credit score. However, defaulting on the loan can have severe tax consequences, as mentioned above.

Q7: What is the typical interest rate for a Fidelity 401(k) loan?

A: The interest rate is usually tied to the Prime Rate plus 1% or 2%. This rate is set by your plan administrator (e.g., Fidelity) and can vary. It’s generally lower than credit card interest rates but higher than a typical mortgage rate.

Q8: Should I use a 401(k) loan for a down payment on a house?

A: A 401(k) loan can be used for a down payment, and some plans allow a longer repayment term (up to 15 years) for a primary residence purchase. However, it’s crucial to weigh the opportunity cost of removing funds from your investments against the benefit of avoiding other loan types. Use a Fidelity 401(k) loan calculator to see the payment impact.

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© 2023 Financial Calculators Inc. All rights reserved. This Fidelity 401(k) Loan Calculator is for informational purposes only.



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