The IRS has released its 2026-2027 special per diem rates for business travel, and the changes took effect October 1st. If your company reimburses employees for travel expenses, now is the time to update your rates, review your reimbursement policy, and ensure your expense systems reflect the latest IRS guidance before outdated rates create compliance problems. Read our latest article to learn what changed, what it means for your business, and what your finance team should do right now.

Federal government contractors who bill on cost-reimbursable contracts must allocate indirect costs across contracts using structured rates for fringe, overhead, and G&A. This article explains how those rates are calculated, why they shift over time, and how inaccurate rate assumptions can affect proposal pricing, contract margins, and interim billing. Whether you are building a rate structure for the first time or questioning whether your current one still fits your business, this guide walks through the key mechanics and what to watch for.