Florida DOR Sales Tax Audit Notice of Proposed Assessment Protest

The situation

Miguel, 46, runs La Cueva, a Cuban-Mexican fusion restaurant in Miami with 35 seats and $1.3M in annual revenue. Eighteen months ago, a Florida DOR auditor spent three days reviewing his records. Last week, a certified letter arrived: Notice of Proposed Assessment, Additional Tax, Penalty, and Interest: $38,700.

The auditor selected January-March 2022 as the sample period and calculated a 16% underreporting rate. Extrapolated across 3 years, this generated $28,400 in additional tax + $8,500 penalty + $1,800 interest = $38,700.

Miguel has 60 days from the NOPA date to file an informal protest.

(a) January-March 2022 was an atypical sample period. Miami restaurants were operating at 60-70% capacity in early 2022 due to Omicron-related staffing shortages and a temporary drop in tourist traffic. Miguel's Q1 2022 revenue was $225,000 vs. his normal quarterly average of $320,000. The auditor calculated a 16% underreporting rate from a period where revenue was 70% of normal, then extrapolated that rate across 3 years of normal-revenue quarters. The extrapolated assessment is mathematically inflated by 30%+ due to the atypical sample period. The protest argument: request sample period replacement with a more representative period (Q2 2023 or Q3 2023 are better representatives of typical operations).

(b) The taxability classification has errors. Miguel's menu includes: (1) bottled water (individual sealed plastic bottles, Nestle) sold from the counter, the auditor treated this as a taxable restaurant beverage. Under Florida Statute §212.08(1)(b), food sold in original sealed containers for human consumption is EXEMPT from sales tax. Cold bottled water in manufacturer's sealed containers qualifies as exempt food, not a taxable restaurant beverage. This error affects ~$12,000 of assessed tax (the auditor treated all bottled water sales as taxable restaurant sales). (2) Cuba Libre cocktails with Coca-Cola, correctly taxable. (3) Fresh-squeezed orange juice, the auditor treated this as taxable because it's a beverage. Under Florida's "food for human consumption" rules, fresh-squeezed juice from whole fruits is exempt unless sold as a restaurant meal component. The taxability issue is contested.

(c) The penalty is separately abatable. Miguel has filed Florida sales tax returns on time for 11 years without a prior deficiency. Under Florida Statute §213.21, DOR grants penalty waivers for first-time violations where the taxpayer demonstrates reasonable cause and good faith. A separate penalty abatement request letter (asserting 11-year clean compliance history + voluntary cooperation with the audit) can eliminate the $8,500 penalty component, saving $8,500 regardless of how the underlying tax dispute resolves.

(d) The IDR process is where negotiation happens. After filing the protest, Miguel's case will be reviewed by a DOR Informal Dispute Resolution specialist, not the auditor. The IDR specialist has authority to accept his documentation and reduce the assessment. For sampling challenges with a documented atypical sample period, IDR specialists frequently accept a partial reduction (replacing the extrapolation base with a more representative period). For taxability disputes, the IDR specialist can reclassify specific items that were incorrectly taxed. A sales tax attorney quoted Miguel $9,500 for "full IDR representation." The protest letter and penalty abatement request are the most time-sensitive and most self-executable components.

Who receives this

Florida small retailers, restaurants, hotels, vacation rental operators, and service businesses that receive Florida DOR Notices of Proposed Assessment after a sales tax audit. Primary industries: restaurants and food service (highest-volume Florida DOR audit target, tourist-heavy Florida restaurant sector generates large audit caseloads), retail clothing and apparel (complex exempt/taxable rules for clothing), online sellers with Florida nexus (economic nexus threshold: $100,000 or 200 transactions in prior calendar year), construction contractors (complex "real property vs. tangible personal property" taxability rules), and short-term rental operators (tourist development tax compliance + sales tax on rentals).

Why the agency will not advise you

Florida DOR enforces sales tax and cannot advise audit respondents on how to contest its own assessments. Florida DOR's IDR unit is separate from enforcement, but DOR as a whole cannot provide guidance that would help taxpayers defeat DOR's own audit findings. Sales tax attorneys (Moffa Tax Law, James Sutton P.A., Zachary Rambone) serve larger retailers; small restaurant and retail owners (with assessments of $15,000-$75,000) often cannot justify paying $9,500-$15,000 in representation costs.

Key facts, with sources

• The Florida Department of Revenue (DOR) conducts sales and use tax audits of Florida retailers, restaurants, service businesses, and online sellers. The audit process: (1) DOR selects a business for audit based on industry risk factors, third-party referrals, or discrepancies in filed returns; (2) The auditor conducts a field examination of sales records, purchase invoices, exemption certificates, and POS system data; (3) For businesses with high transaction volume, DOR uses statistical sampling, selecting a 3-6 month 'representative' sample period, calculating an error rate, and extrapolating that rate across the full audit period (typically 3 years). A 15% underreporting rate in the sample period becomes a 15% underreporting rate projected across 3 years of revenue; (4) DOR issues a Notice of Proposed Assessment (NOPA) when the audit is complete. The NOPA specifies the additional tax assessed + penalty + interest. From the NOPA date, the taxpayer has 60 days to file an informal protest with Florida DOR's Informal Dispute Resolution (IDR) unit (DR-840 form or a written protest letter to [email protected]) or the assessment becomes final. If the IDR result is unsatisfactory, the taxpayer has 21 days to request a formal administrative hearing before the Florida Division of Administrative Hearings (DOAH), a neutral independent tribunal. Source: Florida Sales Tax Audit Defense Guide — DR-840, DR-1215 & Appeals — Moffa Tax Law · What to Expect from a Florida Tax Audit — Florida DOR · Florida Business Tax Audit: What You Need to Know in 2026 — Hacker Johnson
• Florida has some of the most complex sales tax exemption rules in the nation, particularly for food and beverages (the most frequently audited category in the restaurant and hospitality sector). Key Florida food/beverage taxability distinctions under Florida Statute §212.08: (1) Food for human consumption intended for home preparation and consumption (cold grocery items in original sealed containers): EXEMPT; (2) Soft drinks, sweetened beverages, candy: TAXABLE regardless of where sold; (3) Restaurant meals (hot prepared food, food sold with utensils, food sold in portions for immediate consumption): TAXABLE at standard 6% rate; (4) Food sold by vending machines: EXEMPT if cold/unheated, TAXABLE if heated; (5) Catering services: TAXABLE; (6) Dietary supplements: EXEMPT. Florida auditors frequently misclassify cold non-carbonated beverages sold by restaurants in sealed manufacturer's containers (e.g., bottled water, bottled juice) as taxable restaurant beverages when they are actually exempt cold grocery items. Source: Help! Florida Sales Tax Audit — Florida Sales Tax (Moffa) Blog, January 2026 · Navigating a FL Sales Tax Audit as a Business Owner — Nashville Tax Solutions · Florida Sales Tax Guide for Businesses — salestaxhelper.com
• Florida DOR's Informal Dispute Resolution (IDR) process is Florida's alternative to formal administrative hearing for sales tax assessment contests. The IDR is an informal conference or written protest reviewed by a DOR IDR specialist, distinct from both the auditor and the collection division. IDR can be initiated by submitting a written protest letter or the DR-840 (Petition for Formal Administrative Proceeding) form to [email protected] (or fax 850-921-2983). The IDR process typically resolves in 60-120 days. Florida DOR's IDR unit has authority to: (1) accept the taxpayer's documentation and reduce the assessment; (2) grant a penalty waiver under Florida Statute §213.21 for first-time violations with reasonable cause (no prior sales tax delinquency + good-faith compliance effort); (3) apply sampling period replacement if the auditor's sample period is demonstrated to have been atypical of the taxpayer's normal operations; (4) correct specific item-level taxability misclassifications. Florida DOR cannot provide guidance on how to most effectively use IDR against its own audit findings, the IDR unit is separate from enforcement, but both are within DOR, which cannot help taxpayers defeat its own assessments. Source: How to Pay Your Audit Assessment and Notice of Taxpayer Rights — Florida DOR (GT800004) · What to Expect with a Florida DOR Tax Audit — TaxCure

When to bring in a professional

Self-serve responses fit routine cases: clear facts, amounts a business can absorb, and a deadline still ahead of you. Bring in a licensed professional when the amount at stake is large relative to their fee, the facts are genuinely disputed, criminal exposure is possible, or the deadline has already passed. A short paid consultation to sanity-check your plan is often worth it even when you handle the filing yourself.

All sources for this guide

1. Florida Sales Tax Audit Defense Guide — DR-840, DR-1215 & Appeals — Moffa Tax Law
2. What to Expect from a Florida Tax Audit — Florida DOR
3. Florida Business Tax Audit: What You Need to Know in 2026 — Hacker Johnson
4. Help! Florida Sales Tax Audit — Florida Sales Tax (Moffa) Blog, January 2026
5. Navigating a FL Sales Tax Audit as a Business Owner — Nashville Tax Solutions
6. Florida Sales Tax Guide for Businesses — salestaxhelper.com
7. How to Pay Your Audit Assessment and Notice of Taxpayer Rights — Florida DOR (GT800004)
8. What to Expect with a Florida DOR Tax Audit — TaxCure