How much money you need to buy a business is usually 1.5 to 2 times what the purchase price alone suggests. On a $500,000 acquisition financed through an SBA loan, plan on roughly $100,000 to $175,000 in liquid cash once you add your down payment, closing costs, and enough working capital to keep the doors open in the first weeks. Experienced buyers often describe the real cash requirement as 20% to 40% of the purchase price, and where you land inside that range depends almost entirely on how you finance the deal.
The Down Payment Depends on Your Financing Path
The single largest cash line is your equity contribution, and it swings dramatically based on the loan type. Three paths dominate small business acquisitions: an SBA-guaranteed loan, a conventional bank loan, or seller financing layered onto one of the first two.
SBA 7(a) Loans
The SBA 7(a) program is the most common financing tool for small business acquisitions. For a complete change of ownership, the SBA requires a minimum equity injection of 10% of the total project cost, which includes closing costs and working capital rolled into the loan, not just the purchase price.1Congress.gov. Changes to Small Business Administration (SBA) Business Loan Program Policies in Early 2025 On a $1,000,000 acquisition with $50,000 in additional financed costs, the total project cost is $1,050,000 and your minimum injection is $105,000.
The SBA also scrutinizes where that cash comes from. Acceptable sources include unborrowed savings and personal loans that have an outside repayment source, meaning the business itself is not paying them back. A seller note can count toward part of your injection only if it stays on full standby for the life of the SBA loan and covers no more than half the requirement. On a 10% injection, that means a standby seller note can carry at most 5%, and you still bring the other 5% in cash.
One advantage of the 7(a) program is that working capital can be built into the loan itself, so you can finance early operating needs rather than paying entirely out of pocket.2U.S. Small Business Administration. Terms, Conditions, and Eligibility The current maximum 7(a) loan is $5 million.
Conventional Bank Loans
Without an SBA guarantee behind the loan, banks tighten up. Most conventional lenders want 20% to 30% of the purchase price as a down payment. On a $1,000,000 deal that is $200,000 to $300,000 in cash, two to three times what an SBA loan would require. Banks set the higher bar because they carry the full default risk without a federal guarantee.
Seller Financing
When a seller agrees to carry part of the note, your cash outlay at closing usually drops, but rarely to zero. A bank financing the remainder still expects meaningful buyer equity, and even in deals where the seller finances half the transaction, a 5% to 10% buyer contribution is standard. Sellers who carry paper also tend to charge interest slightly above bank rates and set shorter terms, so the debt is cheaper on day one but not necessarily over its life.
Closing Costs and Professional Fees
Budget roughly 3% to 5% of the purchase price for professional fees and closing expenses combined. Complex deals run higher. These costs are almost all due at closing, and unlike the loan itself they cannot be spread out.
Legal fees. An attorney drafts or reviews the purchase agreement, handles transfer of title, and confirms that liabilities are properly disclosed or excluded. A straightforward small business acquisition typically runs $5,000 to $15,000 in legal fees, with intellectual property, commercial leases, or multi-entity structures pushing that higher.
Accounting and due diligence. A CPA reviews the seller’s financial statements, tax returns, and books for accuracy. Lenders also use IRS Form 4506-C to pull the seller’s tax transcripts directly, verifying that what you were shown matches what was filed. Expect $3,000 to $10,000 for thorough financial due diligence depending on the size of the business.
Loan origination and SBA guarantee fees. Lenders charge origination fees of roughly 0.5% to 1% of the loan amount. SBA 7(a) loans carry a one-time guarantee fee on top of that, which varies by loan size and maturity. Some categories, including loans under $950,000 to manufacturers, have reduced or waived fees.
Environmental assessments. If commercial real estate is part of the deal, the lender will likely require a Phase I Environmental Site Assessment reviewing the property’s history for contamination risks. These typically cost $1,800 to $6,500, with former gas stations, dry cleaners, and manufacturing sites at the higher end. If a Phase I flags potential contamination, a Phase II with soil and groundwater sampling adds several thousand more.
Escrow, lien searches, and title. Escrow fees cover the neutral third party holding funds at closing. UCC lien searches verify that equipment and other assets are free of creditor claims. Title insurance may apply if real property transfers. Individually these run from a few hundred to a few thousand dollars, but they compound; allocating an extra 1% to 2% of the purchase price for them keeps the closing table from producing surprises.
Broker commissions are usually paid by the seller, though the cost is baked into the asking price. If you hire your own buyer’s broker you may owe a separate fee, so clarify who pays what before signing a representation agreement.
Working Capital and Reserves for Day One
Owning the business on paper is not the same as having cash to run it. From your first day you need liquid funds for payroll, restocking, and vendors who may not extend credit to a new owner right away.
Working capital is the gap between what the business is owed and what it owes. During the transition, customers may delay payments, key inventory may need replenishing, and seasonal patterns can suppress revenue. If the seller drew down inventory or accelerated collections before closing, the shortfall lands in your account.
Insurance is another immediate hit. General liability, property, and workers’ compensation policies frequently require upfront payments before coverage begins. Depending on the business type and headcount, initial insurance can run from a few thousand dollars to $10,000 or more. Utility deposits may also apply when accounts transfer to a new entity.
Most financial advisors recommend holding at least three months of operating expenses in reserve beyond your closing outlay. A business with $25,000 in monthly overhead needs roughly $75,000 set aside as a safety net. Even when your SBA loan includes a working capital component, lenders want to see personal reserves on top of it.
Costs That Ride On Top of the Price
Several line items are easy to miss during a deal and can create real cash pressure if you have not planned for them.
- Inventory is often priced separately from the business itself. Buyer and seller conduct a physical count near closing, valued at the seller’s cost rather than retail, and the total is added on top of the agreed purchase price. On a retail or distribution business this can add tens of thousands. Ask early whether inventory is included or treated as an add-on.
- Earnest money of around 5% of the purchase price typically goes into escrow when you sign the letter of intent or purchase agreement. It is credited toward the price at closing, but it ties up cash months in advance.
- Licenses and permits often reset with a change of ownership. State filing fees for a new entity vary widely, and specialized permits such as liquor or healthcare licenses can cost significantly more.
- Employee-related liabilities matter in an asset purchase, where the seller typically terminates employees and you rehire them. Accrued but unpaid vacation or PTO becomes a negotiating point; whether the seller pays it out or you assume it changes your cash need.
- Bulk sale rules in some states require the buyer to notify the seller’s creditors before completing the asset transfer. Missing the filing can make you personally liable for the seller’s unpaid taxes and debts. Your attorney should confirm whether the rule applies where you are buying.
- Transition and training may extend beyond the agreed period. If you need the seller involved longer, expect to pay for it.
Using Retirement Funds if You Are Short on Cash
A Rollover for Business Startups, or ROBS, lets you use 401(k) or IRA funds to invest in the business without triggering early withdrawal tax or the 10% penalty that normally applies before age 59½.3Internal Revenue Service. Guidelines Regarding Rollover as Business Start-Ups The structure involves creating a new C corporation, setting up a 401(k) under it, rolling your existing retirement funds into that plan, and using the plan to buy stock in the corporation. The stock proceeds become the business’s operating capital.
ROBS carries real compliance risk. The IRS has flagged concerns about prohibited transactions, especially when the stock is not valued at fair market or when promoter setup fees are paid from plan assets. Prohibited transaction penalties start at 15% of the amount involved and can reach 100% if not corrected. Setup fees from third-party administrators typically start around $5,000 to $6,000, with ongoing administration of $150 or more per month plus separate custodian fees of $500 to $1,000 per year. And your retirement savings are on the line: if the business fails, that money is gone.
A Sample $750,000 Deal
Put the pieces together on a $750,000 business bought with an SBA 7(a) loan. Total project cost with working capital and closing expenses financed in might reach roughly $825,000. At the 10% minimum injection, you owe at least $82,500 in qualifying equity. Add earnest money committed early, insurance premiums, licensing fees, and a three-month operating reserve for a business with $20,000 in monthly overhead, and your total out-of-pocket cash could reach $140,000 to $175,000, before any inventory adjustment at closing.
With conventional financing at 20% to 30% down, the same deal could require $200,000 to $300,000 in personal capital. That is why the honest answer to what it costs to buy a business is not the sticker price but the financing path multiplied by the reserves you can afford to keep behind it.