Revolving Credit Facility Cost Calculator for Small Business: Complete Guide

Quick Answer

A revolving credit facility for a small business costs 10–12% effective APR when you factor in interest (Prime + spread), commitment fees on undrawn amounts (0.25–0.50%), annual facility fees ($250–$2,500), and transaction costs. On a $250,000 facility at 60% utilization, total annual cost is approximately $15,875 — an effective APR of 10.58%. Use the calculator above to model your specific situation.

A revolving credit facility provides flexible working capital for small businesses, but understanding the total cost structure requires analyzing interest, fees, and commitment charges. This guide helps you calculate true costs and compare revolving credit with other financing options.

Key Takeaways

• Total cost includes 4 components: interest on drawn amounts, commitment fees on undrawn amounts, annual facility fees, and per-transaction costs
• Effective APR ranges from 10.15% to 11.63% depending on utilization — higher utilization spreads fixed fees across more borrowed funds
• Commitment fees penalize oversized facilities — requesting a $500K facility when you only need $100K costs $1,500/year in unnecessary commitment fees
• Revolving credit beats term loans for uncertain or fluctuating needs — you only pay for what you use
• Negotiate arrangement fees, annual fees, and commitment rates — these are the most flexible cost components

What Is a Revolving Credit Facility?

A revolving credit facility is a flexible financing arrangement that allows businesses to:

• Borrow up to a set limit repeatedly
• Repay and redraw as needed
• Pay interest only on amounts drawn
• Maintain access for an extended period

Revolving vs. Non-Revolving Credit

Feature	Revolving Credit	Non-Revolving (Term Loan)
Reborrowing	Yes	No
Credit Limit	Fixed	Full amount disbursed
Interest	On drawn amount only	On full amount
Flexibility	High	Low
Typical Rate	Variable	Fixed or variable

Revolving Credit Cost Components

1. Interest Costs

Variable Rate Structure:

Interest Rate = Base Rate (Prime/SOFR) + Spread

Example:

• Prime Rate: 7.50%
• Your Spread: +3.0%
• Your Rate: 10.50%

Interest Calculation:

Monthly Interest = Average Balance × (Annual Rate ÷ 12)

2. Commitment Fees

Fees on the undrawn portion of your facility:

Undrawn Amount	Commitment Fee Rate	Annual Cost
$50,000	0.50%	$250
$100,000	0.375%	$375
$200,000	0.25%	$500

3. Facility Fees

One-time and ongoing facility costs:

Fee Type	Typical Range	When Charged
Arrangement Fee	0.25% - 1%	Opening
Annual Facility Fee	$250 - $2,500	Yearly
Utilization Fee	0.125% - 0.25%	On drawn amount
Agency Fee	$500 - $5,000	Yearly (syndicated)

4. Transaction Costs

Transaction	Typical Fee
Wire Transfer	$15 - $35
Draw Request	$0 - $50
Letter of Credit	1% - 2% annually
FX Conversion	0.5% - 2%

Total Cost Calculator

Example: $250,000 Revolving Facility

Parameters:

• Facility Size: $250,000
• Average Utilization: 60% ($150,000)
• Interest Rate: Prime + 2.5% = 10.0%
• Commitment Fee (undrawn): 0.375%
• Annual Facility Fee: $500

Annual Cost Calculation:

Component	Calculation	Amount
Interest	$150,000 × 10%	$15,000
Commitment Fee	$100,000 × 0.375%	$375
Facility Fee	Flat	$500
Total Annual Cost		$15,875
Effective APR	$15,875 ÷ $150,000	10.58%

Utilization Impact on Effective APR

Higher utilization spreads fixed fees across more borrowed funds:

Utilization	Avg Balance	Interest	Fees	Total	Effective APR
30%	$75,000	$7,500	$1,219	$8,719	11.63%
50%	$125,000	$12,500	$844	$13,344	10.68%
70%	$175,000	$17,500	$594	$18,094	10.34%
90%	$225,000	$22,500	$344	$22,844	10.15%

Key Insight: Effective APR drops 1.48% as utilization increases from 30% to 90%.

Revolving Credit vs. Alternatives

Comparison: $200,000 Facility, 50% Average Utilization, 3-Year Use

Assuming $100,000 average balance across 3 years:

Financing Type	Rate	Annual Fees	Total 3-Year Cost
Revolving Credit	10%	$1,500/yr	$31,500
Term Loan (amortizing)	9%	$2,000 orig	~$29,000
Business Credit Card	18%	$0	$54,000
Merchant Cash Advance	1.35x factor	3% orig	~$72,000
SBA 7(a) Line	10.25%	$3,000 SBA fee	$33,750

When Revolving Wins

• Uncertain timing of fund needs
• Fluctuating working capital needs
• Short-term usage (< 6 months)
• Flexibility valued over rate

When Term Loan Wins

• Known amount needed
• Fixed timeline for use
• Long-term financing need
• Lower rate priority

Revolving Credit Facility Types

1. Traditional Bank Revolver

Feature	Typical Terms
Size	$100K - $5M+
Rate	Prime + 1-4%
Term	1-3 years
Fees	Annual + commitment
Best For	Established businesses

2. Asset-Based Revolver

Feature	Typical Terms
Size	80-85% of AR + 50-60% inventory
Rate	Prime + 2-5%
Term	1-3 years
Collateral	AR, inventory
Best For	Asset-rich businesses

3. Cash Flow Revolver

Feature	Typical Terms
Size	Based on EBITDA (2-3x)
Rate	Prime + 1.5-4%
Term	3-5 years
Collateral	May be unsecured
Best For	Service businesses

Negotiating Better Terms

Rate Negotiation

• Competitive quotes from 3+ lenders
• Highlight creditworthiness (financials, history)
• Leverage existing banking relationships
• Consider rate caps for variable portions

Fee Reduction

Fee	Negotiation Strategy
Arrangement	Waive for relationship
Annual	Reduce by 25-50%
Commitment	Eliminate or reduce rate
Utilization	Cap at certain level

Covenant Flexibility

• Wider financial covenant bands
• Seasonal adjustments
• Cure periods for violations
• Basket allowances

Hidden Costs to Watch

1. Unused Line Costs

Even if you don’t use the facility:

• Commitment fees accrue
• Annual facility fees apply
• Collateral may be tied up

2. Monitoring Requirements

• Monthly/quarterly reporting
• Audited financials (larger facilities)
• Collateral audits (ABL)
• Compliance certificates

3. Covenant Compliance

• Financial ratio maintenance
• Reporting deadlines
• Restrictions on other debt
• Limitation on distributions

Revolving Credit Best Practices

1. Match Facility Size to Needs

Oversizing increases commitment fees:

Actual Need	Oversized Facility	Extra Commitment Fee
$100,000	$200,000 facility	$375/year
$100,000	$300,000 facility	$750/year
$100,000	$500,000 facility	$1,500/year

2. Time Your Draws

• Draw just before needed
• Repay as soon as possible
• Keep average balance low
• Monitor rate environment

3. Plan for Renewal

• Start renewal process 3-6 months early
• Maintain covenant compliance
• Prepare updated financials
• Consider alternative lenders

Questions to Ask Lenders

1. What’s the all-in rate including fees?
2. Is there a commitment fee on undrawn amounts?
3. What are the financial covenants?
4. What reporting is required?
5. Can the facility be increased if needed?
6. What’s the renewal process?

Related Guides

• Working Capital Line of Credit Cost Guide
• Business Line of Credit vs Term Loan Break-Even
• Business Line of Credit APR Calculator
• Business LOC Utilization Rate Impact
• Variable Rate LOC Cost Calculator

Frequently Asked Questions

What is a revolving credit facility and how is it different from a term loan?

A revolving credit facility lets you borrow up to a set limit, repay, and borrow again — like a credit card for your business. You pay interest only on drawn amounts. A term loan disburses the full amount upfront and you pay interest on the entire balance regardless of whether you use it all.

How much does a revolving credit facility cost a small business?

Total cost includes interest (typically Prime + 1–4%), commitment fees on undrawn amounts (0.25–0.50%), annual facility fees ($250–$2,500), and transaction costs ($0–$50 per draw). On a $250K facility at 60% utilization, expect an effective APR of approximately 10.58%.

What is a commitment fee on a revolving credit facility?

A commitment fee is a charge on the portion of your credit facility you haven’t drawn. For example, on a $200K facility with $100K undrawn at 0.375%, you’d pay $375/year. This compensates the lender for keeping capital available. You can minimize it by sizing your facility appropriately.

Should my small business choose a revolving credit facility or a term loan?

Choose a revolving facility when your funding needs are uncertain in timing or amount, when you need flexible working capital, or for short-term usage under 6 months. Choose a term loan when you know the exact amount needed, have a fixed repayment timeline, and want a lower interest rate for long-term financing.

What hidden costs should I watch for with a revolving credit facility?

Watch for: monitoring requirements (monthly/quarterly reporting, audited financials), covenant compliance costs (maintaining financial ratios), collateral tie-up (assets pledged can’t be used elsewhere), and renewal risk (starting the process 3–6 months early to avoid facility expiration).

How can I negotiate better terms on a revolving credit facility?

Get competitive quotes from 3+ lenders, highlight your creditworthiness and financial history, leverage existing banking relationships, and negotiate individually on arrangement fees (waive for relationship), annual fees (reduce 25–50%), commitment fees (eliminate or reduce rate), and covenant flexibility (wider bands, cure periods).