Business Travel

Lodging Taxes and the Federal Per Diem Ceiling

For federal CONUS travel, separate the room charge, lodging-tax line, and published lodging ceiling. GSA explains how taxes are treated and where federal travelers can verify exemptions.

By Remizen Editorial · · 3 min read

A hotel bill may show room charges and lodging taxes separately, while the GSA lookup displays a lodging per diem rate. Do not collapse those figures into one unexplained amount. GSA's Per Diem FAQs, question 11, states that lodging taxes are not included in the CONUS per diem rate and describes taxes paid by federal travelers as reimbursable under Federal Travel Regulation 301-11.16, limited to taxes on reimbursable lodging costs. This is federal CONUS treatment, not an automatic entitlement or accounting rule for a private company's travelers.

Separate the room from the tax

Start with the traveler's official destination, dates, and applicable GSA lodging rate. GSA FAQ #16 explains that, for federal employees, the lodging rate is a maximum and reimbursement is for actual lodging costs up to that maximum; unused lodging allowance cannot be transferred to M&IE. Compare the room cost with the applicable ceiling using the agency's process, then identify tax as its own line on the hotel folio. GSA FAQ #11 explains its separate treatment; do not treat a tax line as additional room allowance or use it to conceal a room charge above the ceiling.

Check that the charge is actually a lodging tax and relates to lodging costs eligible under the federal rule. Preserve an itemized hotel folio, the rate lookup, the travel dates, and any agency authorization or tax-exemption record. GSA directs federal travelers to its SmartPay state tax information for current state details and forms; tax-exemption availability and required documents depend on the applicable location. Do not promise an exemption or assume a hotel will apply one without verifying the current instructions.

Worked example: two hotel folio lines

Assume, hypothetically, that an authorized federal CONUS traveler has a $180 nightly lodging ceiling, an eligible room charge of $170, and a separately itemized $18 lodging tax. These numbers are invented, not current rates. The reviewer records the $170 room amount against the applicable lodging ceiling and identifies the $18 as tax rather than adding it to the displayed room rate. Under the treatment described in GSA FAQ #11 and FTR 301-11.16, the qualifying tax is considered separately and limited to tax on reimbursable lodging costs. The agency's claim rules still control the documentation and processing.

Handle overages, exemptions, and non-CONUS travel

If the room charge itself exceeds the applicable ceiling, separate that issue from the tax and consult the agency about prior authorization or any applicable exception. GSA FAQ #18 describes an actual-expense provision that an agency may authorize when lodging is not available at per diem; it is not automatic permission to exceed the rate. If the bill bundles fees or taxes into a single amount, request an itemized folio before deciding how to classify it. For a private employer, follow its written policy and verify local treatment with qualified advisers rather than assuming federal reimbursement terms apply.

Do not extend the CONUS tax statement to every destination: GSA FAQ #11 distinguishes foreign-area rates, where lodging taxes have not been removed from Department of State per diem rates and separate claims for such taxes are not allowed under the described federal treatment. GSA's main rate page directs Alaska, Hawaii, and U.S. territories and possessions to DoD rate sources. Check the appropriate authority and agency guidance for travel outside CONUS before processing a claim.

  • Confirm destination, applicable lodging ceiling, and federal or company policy.
  • Separate room charges, lodging taxes, and other fees on the folio.
  • Check tax eligibility, exemption instructions, and any required authorization.
  • Escalate an over-ceiling room or bundled charge instead of guessing.

Sources and further reading

  • Per Diem Policy Guide

    Learn how to structure an internal per diem policy, define covered travel circumstances, and document decisions. The guide distinguishes policy design from rates and tax treatment that require current verification.

  • Per Diem Reimbursement Guide

    Understand per diem as a travel expense approach, what a policy should define, and how employees and reviewers can handle eligibility, trip details, and exceptions.

  • Corporate Travel Expense Policy

    Set understandable expectations for booking, paying for, and reporting work travel. Learn how to define covered costs, approval points, documentation, and exceptions without relying on ambiguous blanket rules.

  • Travel Expense Reimbursement

    A focused guide to reimbursing approved business travel costs, organizing trip evidence, handling review, and connecting claims to payment and accounting records.