The paperwork problem is not paperwork. A distilled spirits plant's monthly reports are a summary of records the distillery was already required to keep daily. Structure the daily records right and the monthly report is a query. Skip that, and the 15th of every month is a reconstruction project — which is exactly what an auditor is trained to notice.
I am a fermentation scientist who builds record systems. I am not a TTB compliance consultant and I am not an attorney, and nothing here is legal or tax advice. Every statement below links to the regulation or to TTB's own material — verify it, because sections, form revisions and rates change. Confirming current requirements is the distillery's job: ttb.gov, or the National Revenue Center at 1-877-882-3277.
Different agency, different forms, same failure I spent seven years dealing with in a brewery: the record that matters is never the one assembled at month end. It is the one written when the thing happened, attached to the tank it happened in.
Three accounts, four forms, one structure
TTB does not think of your distillery as a building. It thinks of it as three operational accounts — production, storage, and processing. § 19.571 makes the proprietor responsible for recording activities and transactions in those accounts: receipts in each, movement between them, transfers in bond, withdrawals. TTB's distiller training maps them to physical areas — production where the still is, storage where product sits, processing where blending and bottling happen (TTB deck, PDF). Each account gets its own monthly report, and § 19.632 names exactly four: Production Operations (TTB F 5110.40), Storage (5110.11), Processing (5110.28), and Processing–Denaturing (5110.43).
Which ones you file follows the operations authorized on your permit and registration, not what you did that month. A zero-activity month still gets a report, filed showing zeros, and reports may not be filed quarterly or annually. Two traps come with that. The storage report is really four — separate 5110.11s for domestic spirits and all wines, imported, Puerto Rican, and U.S. Virgin Islands spirits — so a plant holding its own whiskey plus a client's Scotch files two every month. And the units differ: proof gallons on production, storage and processing, wine gallons on denaturing (5110.40, 5110.11).
Everything follows from that. TTB organized the reports around the accounts, so your records have to be too. Every record needs to know which account it belongs to. If that field does not exist, you rebuild it by hand every month, forever.
What TTB wants daily, and what it wants monthly
§ 19.580 requires an entry for each transaction or operation by the close of the next business day — the third business day only if you made a supplemental record when the operation occurred and it already holds all the required information. Tax determination and taxable removal are entered the same day. § 19.581 lists thirteen mandatory data elements, including the date, kind and quantity in proof gallons, container and case serial numbers, consignor or consignee with permit number, and the serial number of any tank used. That last field is the one small systems miss.
| Record or report | What it covers | When it's due | Citation |
|---|---|---|---|
| Daily records | Every transaction or operation, with the 13 required data elements | Close of the next business day; third day only with a contemporaneous supplemental record | 19.580, 19.581 |
| Tax determination & taxable removal | The removal itself, plus the daily summary of determinations | Same day it occurs | 19.580, 19.611, 19.612 |
| Production records | Materials used, quantity produced, receiving-tank and production gauges, spirits traced back to the mash | Daily | 19.584, 19.585 |
| Storage records | Receipts, activity, withdrawals; package summary records; a tank record per tank | Daily; package summaries consolidated at month end | 19.590–19.593 |
| Processing records | Manufacturing, dump/batch records, bottling and packaging per lot, fill tests, finished products | Daily / per batch / per lot | 19.596–19.601 |
| Gauge & package gauge records | Every required gauge — serial number, proof, cooperage codes, total proof gallons | At the gauge | 19.618, 19.619 |
| Inventory records | Date, containers, kind and quantity, losses, gains, shortages — plus signature and perjury declaration | With each inventory | 19.623, 19.45 |
| Bulk physical inventories | Production, storage and processing bulk spirits and wines in tanks and other containers | Close of each calendar quarter | 19.312, 19.333, 19.371 |
| Bottled & packaged inventory | Bottled and packaged spirits in the processing account | Return periods ending June 30 and December 31; 5 business days' notice | 19.372 |
| Monthly operational reports | TTB F 5110.40, 5110.11, 5110.28, 5110.43 — as authorized on your permit | 15th of the following month | 19.632 |
| Excise tax return | TTB F 5000.24, with remittance | 14th day after the close of the return period | 19.236 |
The last two rows are different clocks. § 19.235 sets the return-period ladder, and the thresholds are “not more than,” not “under” — annual at $1,000 of tax or less, quarterly at $50,000 or less, semimonthly otherwise, each tested on both the current and prior calendar year, so exactly $1,000 or exactly $50,000 still qualifies — and a due date landing on a weekend or holiday moves backward. Retention is three years from the record date or last required entry, extendable by three more case by case (§ 19.575), not an automatic six; TTB purges filed reports off Pay.gov, so Pay.gov is a filing channel, not an archive (TTB). Format is flexible and retrieval is not: § 19.572 prescribes no format or medium, while § 19.574 demands records within two days — five business days for electronic media — and lets TTB examine your data processing programs.
Proof gallons, gauging, and where the numbers come from
Every figure on those reports traces back to a gauge. Part 30, the Gauging Manual, sets the units: proof is the ethyl alcohol content of a liquid at 60 °F stated as twice the percent alcohol by volume, and a wine gallon is 231 cubic inches regardless of strength (§ 30.11). The working math is one line: proof gallons = wine gallons × (proof ÷ 100). A hundred wine gallons at 130 proof is 130 proof gallons. Going the other way, a 750 mL bottle at 80 proof is 0.750 × 0.264172 = 0.198129 wine gallons, × 0.80 = 0.1585 proof gallons, so a twelve-bottle case is 1.902. That litre factor is fixed by § 19.582.
Temperature is not a detail
Proof is defined at 60 °F, so a hydrometer only tells the truth at 60 °F — it reads low below and high above (§ 30.22), corrected from Table 1 at § 30.61. § 30.23 sets the discipline: hydrometer to the nearest 0.05 degree, thermometer to 0.1, interpolate, round to the nearest tenth, verify with a second sample. A barrel gauged in an unheated rickhouse in February and the same barrel in August cannot be compared until both are corrected. Precision hydrometers cover 0–206 proof in 0.2-degree subdivisions, so a distillery entering at 130 proof and bottling at 80 needs at least two (correction calculator →).
Sugar breaks hydrometers. § 30.31 requires proof to the nearest tenth degree, and at 400 to 600 mg of solids per 100 mL the obscuration determined under § 30.32 must be added; above 600 mg, the hydrometer alone is no longer the answer and you report true proof. § 30.31(c) gives two ways to get it, joined by “or”: distillation in a small laboratory still, restored to original volume and temperature, read with hydrometer and thermometer — or a recognized laboratory method equal or superior in accuracy to it. You do not have to own a lab still; I send high-solids samples out and write the method used into the gauge record. TTB's rule of thumb: 100 mg per 100 mL obscures true proof by about 0.4 of a degree in the 80-to-100-proof range. Liqueurs and sweetened whiskey live here.
Bulk gets weighed, not dipped. § 30.36 says spirits withdrawn from bond in bulk upon tax determination shall be determined by weight, and § 19.284 allows a mass flow meter for that purpose only if certified within plus or minus 0.1 percent — a meter certified only to 0.5 percent cannot tax-determine. § 19.283 lists twelve moments a gauge is required, from entry for deposit through transfer in bond, reduction before bottling, withdrawal and tax determination.
The gauge record is the deliverable
Performing the gauge is half the job. § 19.618 specifies what the record must show — among other things a serial number, which of five circumstances required the gauge, the date, kind of spirits, proof of distillation, age, the producer's DSP number, and the gauge data: tank number, weight or volumetric details, proof, wine gallons, cooperage codes, entry proof for whiskey, total proof gallons. Those cooperage codes belong in the record, not just on the barrel head: C charred, REC recharred, P plain, PAR paraffined, G glued, R reused, PS steamed or water-soaked. A gauge you performed and did not record correctly is, to an auditor, a gauge you did not perform.
How to build the records system so the report is a query
That is the requirement. Here is the structure that satisfies it: four fields, one event table, three arithmetic checks.
Every record answers four questions
Batch or lot ID. Container ID — tank, package, case lot. Operational account. Date and time. Put those four columns on every row and each report becomes a filter over one table. Leave out the account field and you hand-sort a month of transactions every month.
Make your system the record, not a shadow copy
§ 19.572 prescribes no format and no medium, and accepts ordinary-course business documents that hold all the required information. That is permission to stop keeping two sets of books.
Serial numbering is a schema decision
Gauge, transfer and bottling/packaging records each carry a serial number that either restarts at 1 at the start of each calendar or fiscal year, or is unique and never repeated. Tank records do not get that choice: § 19.592(b) requires the tank record serial number to begin with 1 for each record initiated on or after January 1 of each calendar year — no fiscal-year option, no never-repeated option. Dump/batch records under § 19.598(a) require only a serial or batch number and prescribe no scheme (§ 19.618, § 19.599). Easiest thing to get right in software; most common thing to get wrong on a clipboard.
Make the gauge the event, and compute proof gallons once
Each gauge writes one row carrying every field § 19.618 requires. The daily record, the tank record, the report line and the tax determination all derive from it. Proof gallons get computed once, never re-keyed. Re-keying is where the decimal point moves.
Generate the report; do not retype it
§ 19.634 accepts computer-generated reports on plain white paper without preapproval, provided the layout approximates the TTB form, the line-entry text matches exactly, and each penalty-of-perjury statement is reproduced in full. Match the current form revision.
Reconciliation is arithmetic, so automate it
TTB names two checks to run before filing: beginning inventory plus additions minus withdrawals equals ending inventory, and this month's beginning equals last month's ending. Add a third — the bulk and bottled sections of the processing report both carry a quantity bottled or packaged and have to agree.
One more field, the cheapest fix here: every inventory record needs a signature and the declaration prescribed in § 19.45, which begins I declare under the penalties of perjury
. In software that is one required field and one stored string.
What an audit actually asks to see
TTB publishes its own audit process, which removes most of the mystery: planning with an engagement letter and a review of the reports and returns already on file at the National Revenue Center, then an opening conference, on-site fieldwork, a closing conference, and a management letter. All permitted industry members are subject to audit or review at any time, and prior notification is not required (TTB audit deck, PDF).
Before fieldwork you get a Taxpayer Information Request List: premises maps, your approved Notice of Registration, chart of accounts and general ledger, documented internal control procedures, historical physical inventory records, removals records as sales invoices and bills of lading or their electronic equivalent, and supporting documentation for every item on the returns and the monthly reports.
Strip it down and the audit is one requirement, which TTB states directly: auditors must be able to follow transactions from daily records, to summary records, to the monthly reports, to the excise tax return. That chain breaks at whichever link was reconstructed instead of recorded. And if the records are a spreadsheet on one person's laptop while that person is on vacation, § 19.574's two-day clock is a finding before anyone reads a number.
Seven years running yeast and microbiology data at New Belgium taught me one thing that transfers to a distillery without modification: nobody ever asked whether the test got run. They asked to see the record that said it was run — on that tank, on that day, with that instrument. A correct result with no traceable record was treated as no result. TTB runs the same logic with tax attached.
What most distilleries get wrong
You do not have to guess at the failure modes. TTB's Tax Audit Division publishes its common DSP findings, and they are mechanical, repeatable, and almost entirely structural.
- Inventories not taken, or taken and not signed. Bulk inventories are due in all three accounts at the close of each calendar quarter (§ 19.312, § 19.333, § 19.371); bottled and packaged spirits for the return periods ending June 30 and December 31 (§ 19.372). Each record needs the date, containers, quantities, losses and gains, and the signed § 19.45 declaration (§ 19.623).
- Daily records that do not add up to the report. Footing and cross-footing errors, entries on the wrong line, omitted totals, a beginning inventory that does not match last month's ending. Every one is a check a system runs for free.
- The plugged loss. TTB's own word: nothing contemporaneous supports the claimed loss, so the number gets back-solved to make the report balance. Losses must be determined at three moments — each time a tank or bulk conveyance is emptied, on discovery of an accident or unusual gauge variation, and at a required physical inventory (§ 19.462). A figure produced at any other time is a plug.
- Not knowing a loss from a shortage. A loss is a measured difference between gauged input and output — a leaking fitting, an open valve, an overfill. A shortage is a disappearance disclosed by physical inventory. In-transit bulk loss over 1 percent of the quantity consigned is excessive, and that one is a reporting rule: report it promptly to the appropriate TTB officer — § 19.462(d) attaches no tax to it. The tax sits on the storage side, where a storage-account loss over 1.5 percent for a calendar quarter is excessive and is taxable unless you file a claim for remission and TTB allows it (§ 19.462). An unexplained shortage of bottled spirits is taxable outright (§ 19.465).
- Tax determination records that cannot be traced. § 19.611 makes the record a serially numbered invoice or shipping document, signed or initialed, carrying enough for a TTB officer to determine total proof gallons and each applicable rate. The findings are predictable: documents with neither proof gallons nor proof-plus-volume, and documents nobody signed.
- Transfers and destructions that never got written down. Both sides of an in-bond transfer generate records; one-sided is a gap, and TTB lists it twice — failure to gauge, and missing documentation. A voluntary destruction needs its own record: kind, quantity, elements of gauge, producer name and permit number, container identity, the date, time, place and manner, and who supervised it (§ 19.617). "We dumped it" is not a record.
- Filing late, or filing to the wrong place. I file operational reports through Pay.gov, which § 19.632 expressly allows and TTB recommends. On paper, the current TTB F 5110.40 (rev. 09/2025) directs the original to the Office of Permitting and Taxation, Alcohol and Tobacco Tax and Trade Bureau, 550 Main St., Ste. 8970, Cincinnati, OH 45202-3222. Do not use the address still printed on the un-revised forms — TTB F 5110.11 (01/2009) and 5110.28 (03/2016) show Suite 8002 and ZIP 45202-5215, which TTB no longer publishes. Excise tax returns and payments go to TTB Excise Tax, P.O. Box 790353, St. Louis, MO 63179-0353 — TTB explicitly warns not to send returns or payments to Cincinnati. Two clocks, two addresses, and late filing or payment carries penalties and interest (§ 19.236).
Notice what is not on that list. Nobody gets a finding for distilling badly. Every item is a record that did not exist, did not balance, or could not be traced back to the operation it describes.
Where I fit, and where I don't
The honest boundary first. I build the record system. I do not write the compliance opinion, and I am not the person to tell you whether your permit covers an operation — that is TTB, and past a certain point your attorney. What I do is the structural work above: a schema tied to batch, lot, container and account; gauges captured once as events, with proof gallons computed rather than re-keyed down a chain of spreadsheets; the monthly report generated instead of reconstructed. Seven years inside a brewery's fermentation and microbiology data is why I can — the traceability problem is identical and only the forms differ.
Two ways in, and I take a small number of engagements at a time. The one-week Fermentation Ops Diagnostic → is $1,500 flat for an outside pass over the records you already keep, ending in a fix list ranked by payoff. The QC dashboard build → is $1,500–3,000 if you know what you want built. Two free calculators → bear on gauging: hydrometer temperature correction and ABV.
Last word, same as the first: I build the system, but confirming the requirement is on you. Read 27 CFR Part 19 and 27 CFR Part 30, check your form revisions and current tax rates at ttb.gov, and call the National Revenue Center at 1-877-882-3277 when something is ambiguous. I am a fermentation scientist, not a TTB compliance consultant or an attorney, and this guide is not legal or tax advice.