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Business Valuation Calculator

Estimate what a small or mid-sized business is worth. Build seller's discretionary earnings or adjusted EBITDA from the P&L, apply a range of multiples, cross-check with revenue and net assets, and compare the methods in one table.

Updated Oct 16, 2026Free · no sign-upFormulas tested

Your inputs

Rebuild the profit a buyer would actually earn, then apply a range of multiples. Use figures for a normal year.

Earnings measure
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From the profit and loss statement, after the owner’s salary but before income tax.
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Pay, payroll taxes, health insurance and retirement contributions for one working owner.
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Financing costs stay with the seller in most small-business sales.
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Non-cash charges from the tax return or P&L.
$
Costs a buyer will not have: a one-off legal bill, a family car or travel run through the business. Must be documented.
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×

Results

Estimated value (midpoint)$687,500Range $550,000 to $825,000 at 2.00× to 3.00× SDE
Seller’s discretionary earnings
$275,000
Low value
$550,000
High value
$825,000
Total add-backs
$135,000
49% of the earnings base
Midpoint multiple
2.50×
Midpoint ÷ net profit
4.9×

A buyer paying the midpoint of $687,500 would recover the price from SDE in about 2.5 years, before any debt service or pay for their own time. Add-backs make up 49% of the earnings, so each one needs records a buyer can verify.

Business value at different SDE multiples

$200K$400K$600K$800K$1M$1.2M1.00×1.50×2.00×2.50×3.00×3.50×4.00×LowHigh

Value rises in a straight line with the multiple, so the choice of multiple matters as much as the earnings figure.

From net profit to SDE

ItemAmount
Net profit before tax$140,000
+ Owner’s salary and benefits$90,000
+ Interest expense$8,000
+ Depreciation and amortization$22,000
+ One-time and personal expenses$15,000
Seller’s discretionary earnings$275,000

Results are estimates from the numbers you enter. They are not financial, tax or legal advice.

How to use the business valuation calculator

The calculator has four tabs. Earnings multiple is the main method for a profitable business. Revenue multiple and Asset-based are cross-checks, and Compare methods puts all three next to each other.

  1. Choose the earnings measure. Pick SDE for a business where the owner works full time in it, adjusted EBITDA for one run by paid managers.
  2. Enter net profit before tax from the latest full-year profit and loss statement or tax return. Use a typical year; if one year was unusual, average the last two or three.
  3. Add back what a buyer will not pay. For SDE, enter the owner’s salary and benefits. Then interest, depreciation and amortization, and documented one-time or personal expenses run through the business.
  4. Set a low and high multiple. The calculator returns the value at both ends and the midpoint.
  5. On the Revenue multiple tab, enter annual sales and a multiple range. Adding SDE or EBITDA shows the earnings multiple the revenue value implies.
  6. On the Asset-based tab, list assets at what they would sell for today and the liabilities at their current balances.

The formulas

SDE = Net profit before tax + Owner's pay and benefits + Interest + Depreciation and amortization + One-time and personal expenses
Adjusted EBITDA = SDE − Owner's pay and benefits
Value = Earnings × MultipleRun with the low and the high multiple to get a range; the midpoint is their average. The revenue method uses Value = Annual revenue × Revenue multiple.
Net asset value = Market value of assets − Liabilities
Goodwill = Earnings-based value − Net asset valueAssets are valued at what they would fetch today, which can differ a lot from book value on the balance sheet.

A worked example

An owner-run business reports $140,000 of pre-tax profit. The owner draws $90,000 in salary and benefits, and the books show $8,000 of interest, $22,000 of depreciation and $15,000 of one-time and personal expenses.

Adding these back gives seller’s discretionary earnings of $275,000. At 2.0× to 3.0× SDE, the business is worth $550,000 to $825,000, with a midpoint of $687,500.

As a cross-check, $1,150,000 of revenue at 0.50× to 0.70× gives a midpoint of $690,000, which is 2.51× the earnings. On the asset side, $485,000 of assets less $195,000 of liabilities leaves a net asset value of $290,000.

The earnings midpoint is $397,500 above the net assets: that gap is goodwill, the price of the customers, staff and systems that turn the assets into profit.

Valued on adjusted EBITDA instead, the same business earns $185,000 once the owner’s pay is treated as a cost. At 3.5× to 4.5×, it is worth $647,500 to $832,500. The two methods land in a similar place because the lower earnings figure is matched by a higher multiple.

What moves the multiple

Small-business SDE multiples are often in the low single digits, but the spread is wide and the right figure depends on the business, not on a rule. Buyers pay more for:

  • Size. Larger earnings usually command higher multiples, partly because bigger businesses are less fragile and attract more buyers.
  • Growth and stability. Several years of steady or rising earnings justify more than one good year.
  • Low owner dependence. If customers buy because of the owner personally, a buyer pays less or asks the seller to stay on.
  • Spread-out customers. One client providing a large share of sales is a risk buyers price in.
  • Recurring revenue, documented processes and clean books.

Because value is earnings times a multiple, a half-turn on the multiple matters as much as the earnings themselves:

Multiple range Low Midpoint High
1.5× to 2.5× $412,500 $550,000 $687,500
2.0× to 3.0× (example) $550,000 $687,500 $825,000
2.5× to 3.5× $687,500 $825,000 $962,500

Add-backs: where valuations go wrong

Every dollar added back to earnings is worth a multiple of itself in the price, so add-backs attract the most scrutiny in a sale. In the example they total $135,000. Without the $15,000 of one-time and personal expenses, the midpoint would fall to $650,000.

A buyer or lender will accept an add-back only if it is documented and would genuinely disappear under new ownership. A family member on payroll who does real work is not an add-back; their replacement must be paid. Recurring “one-time” costs are not one-time. If the owner’s salary is below what a manager would cost, an SDE buyer will notice that the job is underpaid, and an EBITDA buyer will deduct a market salary.

Comparing the three methods

Each method answers a different question. Earnings multiples ask what the profit stream is worth to a buyer. Revenue multiples ask what similar businesses sell for per dollar of sales, which works only when margins are similar to competitors’. The asset-based method asks what the business would fetch if it were broken up.

For a profitable company, the asset value is a floor and the earnings value is the anchor. When assets outweigh earnings, the order flips: with $900,000 of net assets in the comparison tab, the earnings midpoint of $687,500 falls short of the net assets, so the business is worth more for what it owns than for what it earns.

What this calculator does not include

  • Working capital and debt in the deal. Many small-business sales are asset sales with the seller keeping cash and paying off debt, and inventory or receivables may be priced separately. Check what the price includes.
  • Deal terms. Seller financing, earn-outs and the split between asset classes for tax change what the seller actually receives.
  • Taxes on the sale for either side.
  • Market data. The multiples you enter are assumptions. Recent sales of comparable businesses, a broker’s opinion or a formal appraisal are the sources for real figures.
  • Liquidation discounts. The asset tab uses the values you enter; a forced sale usually fetches less.

For larger companies with predictable cash flow, a discounted cash flow model values the business from first principles rather than from multiples, and makes a useful third view alongside this one.

Frequently asked questions

How do you value a small business?
Most small businesses are valued on their earnings: the buyer works out the cash profit the business produces for an owner and pays a multiple of it. Revenue multiples and the value of the assets are used as cross-checks. In the example, $275,000 of seller's discretionary earnings at 2.0× to 3.0× gives a range of $550,000 to $825,000.
What is seller's discretionary earnings (SDE)?
SDE is the total financial benefit one full-time owner takes out of the business in a year: pre-tax profit plus the owner's own salary and benefits, interest, depreciation and amortization, and documented one-time or personal expenses. It is the standard earnings measure for owner-operated businesses, because the buyer will usually replace the seller in the job.
What multiple of SDE do small businesses sell for?
Often a low single-digit multiple, but there is no fixed figure. Size, growth, how much the business depends on the owner, customer concentration, the industry and the terms of the deal all move it. The multiples in this calculator are illustrations; recent sales of comparable businesses, a broker or a valuation professional are the right sources for yours.
What is the difference between SDE and EBITDA?
EBITDA treats a manager's salary as a normal operating cost, while SDE adds the owner's pay back. SDE suits businesses run by the owner; EBITDA suits larger companies with a management team, where a buyer is acquiring a profit stream rather than a job. EBITDA multiples are usually higher than SDE multiples because the earnings figure is smaller and the business tends to be larger and less owner-dependent.
Is asset value or earnings value the right price?
For a profitable business, the earnings value is normally the anchor and the net asset value acts as a floor. When the earnings value is below the net assets, the business is worth more as assets than as a going concern, and a buyer would price it that way.

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This calculator is for education and planning. It uses the formulas described above and the inputs you provide; real results depend on fees, taxes, timing and other details that a general tool cannot know. PromtFinance does not give personal financial advice. Check important decisions with your provider or a qualified professional.