Baja California → Baja California Sur · Carretera Federal 2 Mexicali-Tijuana
The long-haul return between Mexicali, Baja California, and La Paz, Baja California Sur — another 1335 km (830 miles) along Carretera Federal 2 Mexicali-Tijuana — closes a journey that hardly fits inside a single business day. Reserve another 14h 50m on the schedule and consider a second overnight if departure happens at the close of business hours. Anyone driving back from Mexicali (the capital bajacaliforniana fronteriza con Calexico y centro agroindustrial del Valle) often pulls into La Paz (the capital sudcaliforniana sobre el Mar de Cortés y nodo del ferry Topolobampo-La Paz) over the weekend. Incremental fuel adds MXN 2693.46 (111.3 liters / 29.4 gallons). Return reimbursement reaches MXN 8677.50 at the MXN 6.50/km tariff. Reconcile outbound and return inside a single Clara PDF, with hotels itemized as separate line items, so finance can reimburse the full bundle in one batch. Priority processing happens when all supporting documents (fuel invoice, toll receipt, hotel folio, meal receipts) sit attached in chronological order and identified by the originating project number. For trips longer than three days, the finance department may also require an executive visit summary attached, describing objectives achieved, agreed next steps, and the commercial indicators generated. For the US professional driving the 1335 km (830 mi) between Mexicali and La Paz, reimbursement of MXN 8677.50 stays non-taxable to the employee when the employer follows an accountable plan under Treas. Reg. §1.62-2 and reimburses at or below the IRS standard mileage rate. US employers generally reimburse at the IRS standard mileage rate so the payment stays non-taxable to the employee under Pub. 463. Keep the IRS-compliant expense report (Form 1040 Schedule C, line 9) alongside the fuel receipt from any EIA-tracked retail station network pump used along the leg; Internal Revenue Service (IRS) examiners pull contemporaneous mileage logs first when auditing Schedule C unreimbursed business expenses, and the Mexicali→La Paz corridor must show date, business purpose, and odometer readings.