Buying a business is exciting, but the numbers have to hold up. If you are eyeing a Houston opportunity, the cash flow must be clear, documented, and sustainable under your ownership. In this guide, you will learn how to read Seller’s Discretionary Earnings (SDE), verify add-backs, reconcile financials, and stress test the deal the way lenders do. You will also see Houston-specific items that can shift cash flow after closing. Let’s dive in.
Cash flow basics you need first
SDE vs. other cash-flow metrics
For most owner-operated businesses, you will focus on Seller’s Discretionary Earnings. SDE starts with pre-tax profit and adds back the owner’s pay and other discretionary or non-operating items to reflect total owner benefit. It is the standard for valuing Main Street companies and for sizing debt on smaller deals. You can review how SDE is defined and used in valuations in this overview from BizBuySell’s learning center.
Larger companies or those with management teams may use EBITDA instead. Use the metric that fits the size and structure of the business you plan to run.
Add-backs and normalization
Add-backs are adjustments that remove one-time, non-operating, or owner-specific expenses from the P&L. Examples include the owner’s personal vehicle costs run through the business, non-business travel, one-time legal fees, or excessive owner wages. You should only accept add-backs that are well documented and truly non-recurring. See common categories and documentation standards in this BizBuySell explainer on add-backs.
Experienced buyers and lenders pay attention to how much SDE depends on add-backs. As a rule of thumb, heavy add-backs may indicate risk. The IBBA highlights best practices for identifying and supporting add-backs in its resource on Main Street add-backs.
Accounting method matters
Small businesses often keep tax returns on a cash basis and internal statements on an accrual basis. Timing differences in receivables, payables, prepaid expenses, or inventory can distort the trend you think you see. Reconcile and, if needed, convert to the same basis when you evaluate the run-rate. The IRS explains the key differences in Publication 538.
Owner compensation and entity type
How the seller pays themselves changes reported profit and SDE. Some owners take W-2 wages plus distributions. Others rely on owner draws or guaranteed payments. If the business is an S corporation, the IRS expects a reasonable salary for shareholder-employees. Very low wages plus large distributions can create tax exposure if reclassified. Review payroll and owner draws carefully. See the IRS guidance on reasonable compensation in the Internal Revenue Manual.
Documents to request and how to reconcile them
Core documents every buyer should see
Ask for, at a minimum:
- Business tax returns for the last 2 to 3 years.
- Profit and Loss statements and balance sheets, monthly if available, plus current year-to-date.
- Business bank statements for the last 12 months.
- Payroll reports, W-2s and 1099s.
- Vendor invoices, key customer contracts, and leases.
- Accounts receivable and payable agings, and inventory counts if relevant. The SBA outlines typical diligence materials for buyers on its page about buying an existing business.
Reconcile and verify cash flow
Work through these steps:
- Tie P&L numbers to tax returns. Look for timing differences, owner draws, or items recorded only for tax purposes.
- Match P&L revenue to bank deposits and verify payroll to payroll registers. Confirm each claimed add-back with a receipt, invoice, or bank record. BizBuySell’s add-back guidance shows the level of support lenders expect.
- Convert to a consistent accounting basis. If tax returns are cash basis and your lender underwrites on accrual, prepare an accrual view that reflects sustainable operations. The IRS explains methods in Publication 538.
How to calculate SDE step by step
Follow this simple workflow to normalize earnings:
- Start with pre-tax net income from the P&L or tax return. Review the SDE definition in BizBuySell’s SDE overview.
- Add back the seller’s compensation, interest expense, business taxes, and non-cash items like depreciation and amortization.
- Add back documented discretionary and one-time expenses. Examples: owner’s personal vehicle, non-business travel, or one-time legal costs. Use invoices and bank statements to support each amount per year, as outlined in BizBuySell’s add-back article.
- Subtract reasonable replacement costs. If the seller worked 60 hours per week, include the market cost to replace that labor with a manager. This keeps SDE realistic for your model.
- The result is normalized SDE. This is the income stream you will use to assess price, debt capacity, and your return.
Documentation standard for add-backs:
- Provide a short description of each item.
- List the amount by year.
- Include supporting evidence such as invoices, canceled checks, and the line on the bank statement or return. Lenders often reject unsupported or recurring “one-time” items.
Stress test the cash flow the way lenders do
Debt service and DSCR targets
Most lenders want to see a Debt-Service Coverage Ratio in the 1.15 to 1.25 or higher range. A ratio at or above about 1.25 is commonly viewed as more comfortable. Learn how DSCR works in this BizBuySell primer. For SBA-backed loans, lenders will expect historical financials and realistic projections that support combined debt service. You can find general SBA expectations on the SBA’s buying an existing business page.
Build scenarios, not just a single projection
Create a 12 to 24 month model with base, downside, and upside cases. Stress revenue declines of 10 to 25 percent, margin compression from higher labor or materials, the loss of a key customer, or a rent change. Calculate DSCR in each case. Use a break-even view to see how much sales can fall before debt service is at risk. The BizBuySell DSCR guide outlines typical inputs to vary.
Know your financing mix
Common structures in Houston include SBA 7(a), conventional bank loans, seller notes, or combined options. Underwriting is built on adjusted historical cash flow, so your normalized SDE directly affects how much you can borrow. The SBA’s overview of buying an existing business explains documentation and process at a high level.
Houston-specific factors that change the math
Industry mix and cyclicality
Houston’s economy includes energy and petrochemicals, distribution tied to the ports, healthcare anchored by the Texas Medical Center, and manufacturing. These sector exposures can affect revenue stability, labor availability, and regulatory costs. Benchmark your target’s margins and multiples against peers in the same industry and set your stress tests accordingly.
Permitting, zoning, and timing
Houston does not have a single, citywide zoning ordinance. Land use is guided by other regulations, code requirements, and deed restrictions. Always confirm permitted use, parking or signage rules, and any site-specific needs with the City of Houston Planning and Development Department. Many concepts also need a Certificate of Occupancy, health permits for food businesses, or TABC approval for alcohol. Build those fees and timelines into your working capital plan. This overview of Houston business licensing and permits is a helpful starting point.
State taxes that affect cash flow
Texas has no personal income tax, but many entities owe the franchise (margin) tax. Thresholds and filing rules can change, so verify where your post-closing entity will land. The Texas Comptroller’s franchise tax page has current guidance. Confirm your structure and estimates with your advisor before closing.
Lease terms, real estate, and property taxes
If the seller enjoyed below-market rent, normalize it to market rates in your model. Add back the owner’s under-market rent and then plug in the rent you will pay after assignment or renewal. If real estate is part of the deal, model Harris County property taxes and insurance at today’s levels. The SBA’s guide to buying an existing business highlights the importance of lease terms in diligence.
Diligence checks and red flags
Quick checklist focused on cash flow
- Reconcile the last 2 to 3 years of P&Ls to filed tax returns.
- Review 12 months of bank statements and match deposits to reported sales.
- Confirm payroll with registers plus W-2 and 1099 details.
- Read the lease and note assignment or consent requirements.
- Build a documented add-backs list with source support.
- Examine AR and AP agings and inventory counts if relevant.
- Review material customer and supplier contracts and any pending legal or environmental issues.
Red flags to watch closely
- Add-backs with no receipts or weak explanations.
- One customer over about 25 to 30 percent of revenue without a long-term contract. See a discussion of concentration risk in this buyer-focused blog category.
- Owner-dependent operations with no plan to replace the owner’s role.
- Related-party transactions or unusual payments to family members.
- Material differences between cash receipts and what the tax return shows, year after year.
When to bring in specialists
- CPA or transaction accountant to reconcile returns to financials, vet add-backs, and prepare a scalable Quality of Earnings review. For an overview of QoE value and scope, see Deloitte’s perspective on prepared-seller accounting and tax considerations.
- Valuation specialist to help benchmark multiples if the price is contested.
- M&A attorney for structure, assignment of contracts, and indemnities.
- SBA or commercial lending specialist to pre-check financing feasibility.
- Commercial real estate advisor and attorney to verify market rent and lease terms.
- Environmental consultant for industrial, auto, or chemical sites.
Buyer questions to ask every Houston seller
- Show me the last 2 to 3 years of tax returns, the latest P&L and balance sheet, and 12 months of bank statements.
- For each add-back: What is the receipt or bank transaction, why is it discretionary, and will it recur under new ownership?
- How are you compensated today and do payroll records support it?
- Which customers contribute more than 10 percent of revenue and what is the plan for those relationships after closing?
- Is the current rent at, below, or above market and how would a reset affect cash flow?
- Are there pending legal, environmental, or tax matters that could hit cash flow post-close?
Your next step
If you are comparing deals in Houston, a disciplined cash-flow review protects your downside and your time. Normalize SDE with full documentation, confirm what actually hits the bank, and build lender-level stress tests. Layer in Houston’s permits, franchise tax, and lease realities so your first 12 months are fully funded. If you want an experienced team to help you pressure-test the numbers and navigate the process with confidence, start a confidential conversation with Meridian Business Advisors.
FAQs
What is SDE when buying a Houston business?
- Seller’s Discretionary Earnings is pre-tax profit plus the owner’s pay and documented discretionary or non-operating items. It is the standard cash-flow metric for smaller, owner-operated deals.
How do I verify a seller’s add-backs in due diligence?
- Request receipts, invoices, or bank/credit card statements for each add-back and confirm the item is non-recurring or owner-specific so it will not continue under your ownership.
What DSCR do lenders usually want for acquisitions?
- Many lenders look for a Debt-Service Coverage Ratio around 1.15 to 1.25 or higher, with about 1.25 often viewed as more comfortable for underwriting.
Do Houston permits and licenses affect my cash flow plan?
- Yes. Build the time and cost for a Certificate of Occupancy, health permits, and any alcohol approvals into your working capital and timeline.
How does Texas’s franchise tax impact the business I buy?
- Many entities owe the Texas franchise tax, so confirm thresholds and filing requirements for your post-closing structure and incorporate the estimated tax into your cash-flow model.
