Using IRS mileage and per diem in catering banquet costing

What to take away

Using IRS mileage and per diem rates in catering banquet costing comes down to two published numbers: the standard rate for business driving and the meals allowance for staff who travel.

Where IRS mileage and per diem figures enter a banquet quote

A banquet quote is a cost stack, and vehicle and meal lines sit inside it. The standard mileage rate gives you a per-mile number a client can accept without an argument about your gas tank: 70 cents for every business mile in 2025.

Per diem gives you a per-person, per-day number for staff meals when the event is too far to send people home. The standard continental US meals and incidental rate has been $59 to $68 a day in recent tables.

Both figures are public. The IRS announces the mileage rate each December for the year ahead. The General Services Administration publishes per diem rates every October 1. That matters when a client's procurement office asks why a delivery line is priced as it is. You are not inventing a rate.

The same logic runs through the rest of the quote. Fixed labor, food cost, and rentals each need a defensible basis. Vehicle and meal lines are the two that have a federal reference point.

If you are rebuilding your quote structure, start with the fields a catering quote template needs and price each line from a source. Vehicle and per diem lines are the easiest to source.

Vehicle costs move with fuel, insurance, and maintenance. The 70-cent rate bundles those into one number for business use. That is why it works in a quote: it is simple, published, and reviewable.

Per diem does the same for meals. Instead of collecting 40 receipts from a three-day remote event, you quote a daily allowance and reconcile later. The client sees one number.

Both figures also feed your own books. The quote line and the tax deduction should rest on the same record, or one of them will be wrong.

Standard mileage rate mechanics for delivery runs and van fleets

The standard mileage rate is a per-mile amount for operating a vehicle for business. It was 70 cents for 2025, 67 cents for 2024, and 65.5 cents for 2023. The IRS announces the next year's figure each December, and it applies to miles driven from January 1.

For a January 2026 event, price the run at the rate in the current IRS announcement, not the 2025 figure. On a quote written in November, add a note saying which rate applies.

IRS Publication 463 covers when you can use the rate, what it includes, and what records you need. The publication is the reference your bookkeeper and your estimator should both read.

For a catering company, business use means delivery runs, supply pickups, site visits, and shuttling staff or equipment. A run from your commissary to a venue and back is business mileage. A stop at the grocery store on the way home is not.

The rate covers fuel, insurance, repairs, and depreciation. It does not cover tolls or parking. Those are separate and should be separate lines in the quote.

You cannot use the standard rate if you claimed depreciation on the vehicle in an earlier year, or if you operate five or more vehicles at once. In those cases you track actual costs. Most small caterers run fewer than five vans, so the standard rate applies.

Two more rules matter. For a car you own, you must choose the standard rate in the first year you use that car for business. For a leased van, the method you pick in year one locks in for the whole lease.

A van fleet changes the math. Two vans on the same event double the mileage. A 40-mile round trip becomes 80 miles, which is $56 at 70 cents. That is why run sheets should name the vehicle, not just the driver.

Electric and hybrid vehicles have their own rate history, but the mechanics are the same: a published per-mile figure applied to logged business miles. Do not blend vehicle types into one average unless you keep the underlying logs.

If you have not set up payroll and reimbursement tracking, an EIN is the starting point: Get an employer identification number. Reimbursements flow through payroll, and payroll needs a business identity.

For broader filing questions on vehicle and meal costs, the IRS business hub is the place to check before you call your accountant: Businesses | Internal Revenue Service.

Per diem treatment for staff meals on travel and remote events

Per diem rates for catering staff meals are daily allowances for meals when employees travel away from their tax home for business. A remote wedding three hours away qualifies. A venue across town does not.

The IRS publishes per diem figures for meals and incidental expenses, and the General Services Administration sets the underlying rates by city. They vary by location and by time of year. High-cost metros have higher rates than rural areas, and the figures reset every October 1.

Concrete numbers: the standard continental US meals and incidental rate has been $59 to $68 a day in recent GSA tables. At the $59 figure, the split is $13 breakfast, $15 lunch, $26 dinner, and $5 incidentals. New York City and San Francisco sit near $79 a day, and the highest rates are in parts of Alaska and Hawaii.

The first and last travel days pay 75 percent of the daily rate, which is $44.25 on the $59 rate and $51 on the $68 rate. A Saturday to Sunday event pays two partial days, not two full ones.

For a catering quote, per diem becomes a staff meal allowance line. If you send six people to a two-day remote event, that is twelve person-days of meal allowance. At the $59 standard rate the line is $708, and at the $79 New York rate it is $948.

You have two compliant approaches. The per diem method pays a flat daily amount with no receipts. The actual expense method reimburses real receipts. Per diem is simpler and predictable, which is why it fits a quote.

Per diem is not a wage. It is a reimbursement for travel meals. If you pay it without a travel requirement, it can look like taxable compensation. Keep the event detail and the travel distance in the file.

IRS Publication 1542 lists per diem rates for travel, and the high-low method offers a flat amount for high-cost areas instead of a city-by-city lookup. Either way, apply one method consistently to a trip.

Some caterers use per diem only for out-of-town events and feed staff on site for local work. That split is fine as long as the policy is written and applied consistently. Inconsistent treatment is what draws scrutiny.

Staff meals at a local venue are usually a food cost line, not a per diem line. Do not double-count them. One event, one treatment.

Building a delivery cost line from mileage, tolls, and load time

A delivery run cost line in a banquet quote has four parts: mileage, tolls and parking, load and unload time, and a fuel or vehicle allowance if you do not use the standard rate. Each part should be visible or at least explained in the quote notes.

Mileage is the easy part. Multiply the round-trip distance by the number of vehicles by the current IRS rate. A 30-mile round trip with two vans is 60 miles, which is $42 at 70 cents.

Tolls and parking are pass-through costs. Estimate them from the route, then reconcile against receipts. Do not bury them in the mileage rate, because the rate does not cover them.

Load time is labor, not mileage. Two staff loading a van for 45 minutes is 1.5 labor hours. That belongs in the delivery line or the labor line, but it must appear once.

A worked example: the venue is 30 miles from your kitchen, you send two vans, and the crew loads for 45 minutes and unloads for 30 minutes at $18 per hour.

Swap in the current IRS rate, your own toll estimate, and your payroll rate. The structure is what matters: each component has a basis, and the client can see it.

If you want to compare your delivery and labor lines against industry benchmarks, BLS business cost statistics give you a reference point: Overview of BLS Statistics on Business Costs : U.S. Bureau of Labor Statistics.

For the rest of the quote, the same discipline applies. See how other line items get built in a catering pricing and profit guide.

Per diem versus actual meal receipts in banquet costing

Per diem is a flat daily allowance. Actual receipts are what you really spent. The choice affects your quote, your books, and your audit risk.

Per diem wins on simplicity. You quote one number, pay one number, and keep a record of the travel days. No receipt pile, no arguing about whether the $14 sandwich was reasonable.

Actual receipts win on precision. If your crew ate for less than the allowance, you spent less than you quoted. That is margin, but it is also a reconciliation task.

The IRS requires that reimbursements under an accountable plan be substantiated. Per diem is a substantiation method when the travel qualifies. Actual receipts are another. You cannot mix them for the same expense.

For banquet costing, the practical split is this: quote per diem, reimburse per diem, and treat any difference as a labor cost variance. Do not switch methods mid-event.

One caution. Per diem rates are ceilings, not entitlements. If you pay above the federal rate, the excess can be taxable wages. Keep your policy at or below the published figure.

Staff meal reimbursement also interacts with your labor cost line. If you feed staff on site, that food comes out of inventory, not per diem. Track it as a food cost, not a travel cost.

For the broader pricing picture, including how labor and food lines interact, the sourcing and inventory choices article covers what changes when event demand spikes.

Documenting mileage and per diem for audit-ready banquet files

Documentation is where most caterers lose the deduction and the argument. The IRS wants a record of the business purpose, the date, the destination, and the miles. A calendar entry is not enough.

A mileage log per vehicle per event is the standard. Log the date, the driver, and the vehicle. Add the odometer at the start and the finish, the destination, and the purpose. If you use an app, export the log monthly and store it with the event file.

Per diem documentation needs the travel dates, the destination, the number of travelers, and the daily rate applied. Print the GSA page or the IRS notice that sets the rate for those dates, then attach the run sheet that shows why the travel was necessary.

Keep the quote, the run sheet, the mileage log, and the per diem record in one folder per event. When a client disputes a delivery line, you have the basis. When the IRS asks, you have the same file.

A clean file also supports your catering employee pay, because you know what you will be reimbursed and when.

The record should match the quote line. If the quote says 60 miles, the log should say 60 miles. Small mismatches are normal; large ones are a problem.

Adjusting quotes when IRS figures change mid-season

IRS figures change. The standard mileage rate is set each December for the following calendar year. Per diem rates reset every October 1 and vary by location and season. A quote issued in the spring may not match the rate in the fall.

Mid-year changes happen too. In 2022 the IRS raised the business rate from 58.5 cents to 62.5 cents on July 1, and quotes written in May carried the old figure.

Decide your policy before the change hits. Most caterers apply the rate in effect on the date of the run, not the date of the quote. That is the cleaner rule and it matches the tax treatment.

When a rate changes, reissue open quotes that have not been signed. For signed contracts, apply the new rate to runs after the effective date and note the adjustment on the invoice.

Do not silently absorb the difference on every event. Five cents per mile across 4,000 seasonal miles is $200, and a van fleet multiplies that. Track it as a cost variance.

If the change is large, tell the client early. A short note explaining that the federal rate changed is easier to accept than a surprise on the final invoice.

Your monthly KPIs should include delivery cost per event and per diem spend per remote event, so a rate change shows up as a trend, not a shock.

Sourcing and inventory decisions also affect vehicle costs, because heavier loads and more trips change mileage. Review those choices alongside your delivery assumptions each season.

Common questions