Buying a Restaurant: Due Diligence Checklist & Red Flags (2026)

Red flag: POS-reported sales exceed tax return revenue by 15%+ with no documented cash-payout reconciliation (potential skimming or inflated asking price).

Ask: Walk me through every deposit log for July 2023 against the POS summary report—show me the daily variance and explain any cash shortfall.

Red flag: Food cost is reported at 28% but broadliner (Sysco/US Foods) weekly invoices alone total 32% of sales without accounting for produce/meat specialists.

Ask: Please provide the last six months of main broadliner invoices, produce invoices, and protein invoices, then map them to the weekly inventory counts you used to calculate your reported COGS.

Red flag: Substantial portion of BOH hours paid via cash/Zelle without overtime recorded; one IRS Form SS-8 or DOL audit could retroactively annihilate margin with back taxes and penalties.

Ask: Show me all employee time-clock records, pay stubs, and quarterly 941 filings for 2023—are there any employees classified as 1099 who work schedules controlled entirely by you?

Red flag: Owner claims $180K SDE but runs personal vehicle lease, family cell phone plan, and non-working spouse's payroll through the P&L—true adjusted SDE is closer to $95K.

Ask: I need a detailed, transaction-level general ledger for the entire prior year; let’s go through every personal add-back you’ve tagged and reclassify it until we arrive at verifiable discretionary earnings.

Red flag: FOH staff report only credit-card tips; cash tips exceed 8% of cash sales yet no Form 8027 exists—unsuspecting new owner inherits FICA tip-tax liability and potential IRS trust-fund penalty.

Ask: Please supply your most recent Form 8027 and all certified tip-allocation logs—have you ever received an IRS letter on tip reporting, and are there any open tip-audit periods?

Red flag: Semi-annual inspection tag is 14 months expired, or manual pull station shows corrosion; fire marshal can red-tag the entire kitchen and halt operations instantly.

Ask: When was the last Ansul inspection, and please show me the tag right now—also give me the technician’s report on the duct-work grease buildup since last cleaning.

Red flag: Compressor is 18+ years old running on R-22 refrigerant (phased out); multiple daily temp excursions above 41°F logged loosely on a clipboard indicate pending health-code violation and $15K replacement.

Ask: I’d like to see your digital temperature logs for the last three months with alarm thresholds and the HVAC contractor’s most recent service report on refrigerant pressure levels.

Red flag: Undersized 500-gallon exterior trap for a high-volume fryer operation requires weekly pumping but manifests show quarterly service; surcharging from municipality is accruing as a hidden liability.

Ask: Show me the last 12 months of pumping manifests and any notices from the water authority about FOG (fats, oils, grease) exceedances.

Red flag: Combination oven is non-functional and has been bypassed for six months while menu was silently reduced—seller claims it’s an 'easy fix' to inflate business capability.

Ask: Walk me through every piece of equipment on the schedule from the purchase agreement—I want to power on each unit and itemize the repair history from your maintenance log.

Red flag: Last two health-inspection scores show critical violations for rodent droppings or fruit-fly infestation in the bar drain; pattern reveals deferred maintenance and could force closure upon re-score.

Ask: Please share the last three full health department inspection reports, the pest-control service record and bait station map, and any active corrective action plans from the local health authority.

Red flag: 62% of revenue flows through DoorDash/Uber Eats with a 4.1-star rating and consistent 'missing items' complaints; 30% commission load renders those sales unprofitable and one algorithm shift could crater volume.

Ask: Export your DoorDash and Uber Eats merchant-portal data as .csv—I want to see net payout after commissions, item-level refund rate, and month-over-month active customer trends for 18 months.

Red flag: A $22-entree full-service restaurant located in a trade area where daytime workforce has collapsed post-COVID and ACS census shows median household income down 9% since 2019.

Ask: Has anyone done a rings-based Placer.ai or credit-card spend report on your trade area since 2022, and if not, can you describe how your core customer’s office commute patterns changed since 2020?

Red flag: City DOT online shows a 14-month 'streetscape enhancement' starting next quarter that eliminates all street parking and reduces lane access—business listed for a reason seller isn't disclosing.

Ask: Walk me through any municipal roadwork, sidewalk closures, or DOT permits filed within three blocks for the next 24 months that you are aware of.

Red flag: Three new directly competing concepts (same cuisine category, same $18–$25 average check) have received building permits within a half-mile radius and will open in the next nine months.

Ask: Please provide a list of all restaurants within a one-mile radius with a similar cuisine and average ticket—and tell me about any building permits or liquor license applications you know are pending nearby.

Red flag: Landlord consent clause requires them to approve assignment but they demand a 'market reset' on rent up 40% and refuse to release seller’s personal guarantee without a new substantial security deposit.

Ask: I want to speak directly to the landlord—will you support a lease assignment to my entity with the same terms and explicitly release your guarantee upon closing plus a six-month transition hold?

Red flag: The on-premise beer/wine/liquor license has a documented 2022 suspension for underage service and the local ABC board has a 6–9 month transfer backlog during which the license might be challenged.

Ask: Please provide the full ABC file for this premises including violation history, current license type, designated manager permits, and a written timeline from your liquor attorney on local transfer processing times.

Red flag: Main entrance has a step-up with no ramp, restrooms lack grab-bars and turning radius, and parking-lot striping omits van-accessible aisles—a single lawsuit or DOJ demand letter can trigger $50K in retrofits.

Ask: Have you conducted a CASp (Certified Access Specialist) inspection and do you have any open ADA complaints, letters from private attorneys, or DOJ correspondence—if not, please share the original construction build date and any remodel dates?

Red flag: Restaurant operates as a franchise but the franchisor's right-of-first-refusal extends 60 days and the franchise agreement requires a complete $80K remodel to 'current design standards' upon transfer.

Ask: Send me the Franchise Disclosure Document Item 20 transfer statistics and the precise transfer conditions, then let’s call the franchisor development director together—what exactly will they require of me as a new transferee?

Red flag: Active workers’ comp claim for a fry-cook burn with no return-to-work program, plus two unsettled wage complaints at the state labor board for off-the-clock side-work—liability transfers with the EIN.

Ask: Provide your MOD (Experience Modification) rate worksheet, a summary of all open workers’ comp claims, and any demand letters or state/federal wage-and-hour complaints from the last three years.

Red flag: Seller wants to cash out and leave after 48 hours of 'introduction'—the entire customer experience is built around the chef-owner touching every plate; a waterfall decline in quality and reviews is inevitable.

Ask: Will you agree to a four-week, 30-hour-per-week on-site transition plus 90 days of telephone/email availability, anchored by performance milestones tied to a holdback in the asset purchase agreement?

Red flag: Lead sous chef and GM are at-will with no non-compete and have told seller privately they’ll leave if the restaurant sells—no retention plan has been discussed.

Ask: I want to meet individually with the GM, sous chef, and top server—can we present a retention bonus equal to one month’s pay after 90 days under new ownership, and do they have signed non-solicitation agreements?

Red flag: Google Business Profile and Instagram are tied to seller’s personal Gmail account, not transferable; 1,200 five-star reviews could be lost permanently, cratering local SEO.

Ask: Are your Google Business Profile, Yelp page, Instagram, and domain fully held in a business account that you’ll transfer root-admin access to—and if post-transfer reviews can’t migrate, will there be a price adjustment?

Red flag: A handwritten ledger shows $17K in unredeemed, sold physical gift cards and $4K in uncollected house tabs—new owner must honor them by state escheat law but receives no purchase-price credit.

Ask: Please produce a certified schedule of all outstanding gift card liabilities and house-account balances as of the closing date; will these be deducted dollar-for-dollar from the purchase price since I have to honor them?