BUSINESS USE VIA HELOC · LAST VERIFIED APRIL 2026
Using a HELOC for Business: Tax Rules, Structure, and Real Risks
Using a HELOC to fund a business works mechanically. But the tax rules are complicated, the legal structure matters, and you are putting your home up as collateral for a business that may fail.
Why Founders Use Home Equity
Cheaper than credit cards
HELOC at ~10% APR vs business credit card at 20-29%. For a $50,000 need, the annual interest difference is $5,000-$9,500.
Faster than SBA
SBA 7(a) loans take 60-90 days for approval. A HELOC draw is available within 1-2 business days once the line is open.
No business credit required
A new business has no credit history. Personal HELOC approval is based on home equity and personal credit, not business revenue.
Tax Treatment: Two Different Mechanisms
Mechanism 1 (What does NOT apply): Home-mortgage interest deduction (Schedule A). Post-TCJA, HELOC interest is only deductible as mortgage interest if funds are used to buy, build, or substantially improve the home. Using funds for business purposes fails this test. This deduction is NOT available for business-use HELOCs.
Mechanism 2 (What MAY apply): Business-interest expense deduction under IRS Publication 535. If funds are clearly traced to business expenses, the interest may be deductible on Schedule C (sole proprietor) or as part of business expenses on Form 1120-S (S-corp). This requires documentation and is subject to Section 163(j) business-interest limitation rules.
Worked Example
Borrower draws $50,000 from HELOC and transfers directly to business checking account. Uses funds for equipment and payroll. At 10% APR, annual interest = $5,000. This $5,000 may be deductible as business-interest expense on Schedule C, reducing taxable income. NOT deductible on Schedule A as mortgage interest. Requires clear documentation of fund flow and business purpose.
Documentation Requirements
No commingling
Transfer funds directly from HELOC draw to a dedicated business account. Never mix HELOC proceeds with personal funds.
Record each disbursement
Keep bank statements showing the transfer from HELOC to business account, and from business account to each business expense.
Document the loan in corporate records
If the business is a corporation, treat this as a formal shareholder loan. Document it in corporate minutes. Track it on the corporate balance sheet.
Business purpose for each use
For each HELOC-funded expense, retain evidence of the business purpose: vendor invoices, payroll records, software subscriptions.
Maintain the paper trail for 7+ years
IRS audit window. Business records should be retained for at least 7 years for any year in which you claim a business-interest deduction.
The Real Risk: Your House is Business Collateral
If the business fails and HELOC payments become unaffordable, the lender can foreclose on your home. A failed business and a foreclosure simultaneously is one of the worst financial scenarios a homeowner can face.
This risk is asymmetric: the upside is tax savings and cheaper capital; the downside is losing your home. Consider alternatives that do not risk your home before committing to this structure.
Alternatives That Do Not Risk the House
SBA 7(a) Loan
Government-backed, secured by business assets (not your home). Longer process (60-90 days) but better terms for established businesses. Rates April 2026: prime + 2.75-3.75% (11.00-12.25% typical).
Revenue-Based Financing
Clearco, Pipe, Capchase. Advances against future revenue. No home equity required. Higher effective rate but aligns with cash flows.
Personal Loan
Unsecured. No home risk. Rates 12-20% for strong credit. Better than a HELOC if the risk differential matters to you.
Founder Credit Cards
Higher rates (18-29%), shorter terms. Better for small operational expenses than capital investment. No collateral required.
FAQ
Related: Tax Treatment · Investment Strategy · Standby Liquidity · Home