Tlaxcala → Hidalgo · Carretera Federal 117 Tlaxcala-Puebla
Coming back from Tlaxcala, Tlaxcala, to Pachuca, Hidalgo, the return leg also clocks roughly 129 km (80 miles) typically along Carretera Federal 117 Tlaxcala-Puebla, but the traffic picture shifts considerably compared with the outbound segment. Tlaxcala, the capital tlaxcalteca y la entidad más pequeña en superficie del país, fades behind the wheel while the vehicle pushes back toward Pachuca, the capital hidalguense y puerta de entrada a la Sierra Norte desde el Valle de México, often after a full day of meetings, site visits, or prospecting calls. Plan 1h 26m plus a generous buffer against evening congestion, particularly on Fridays, holiday eves, or after major sporting events. Driver fatigue is the dominant concern returning home; mandatory rest breaks every two hours are non-negotiable. Fuel spend on the return stays near MXN 261.36 for 10.8 liters (2.9 gallons). The corresponding reimbursement on the way back reaches MXN 838.50 at MXN 6.50/km. Combine both legs on a single Clara receipt to document the full round-trip cleanly, with separate timestamps for transparent audit defense. For the UK professional driving the 129 km (80 mi) between Tlaxcala and Pachuca, reimbursement of MXN 838.50 fits the subsistence allowance regime when paid at or below HMRC AMAP rates of 45p per mile for the first 10,000 business miles in the tax year. UK firms reimburse at HMRC AMAP rates (45p / 25p per mile) so the payment stays free of PAYE and NIC under approved mileage allowance payments rules. Retain a VAT receipt accepted by HMRC for input-tax recovery from the BEIS-tracked forecourt network forecourt used to refuel; His Majesty's Revenue and Customs (HMRC) compliance officers cross-reference fuel VAT receipts with the P11D return when reimbursement exceeds the approved rate. Excess paid above AMAP on the Tlaxcala→Pachuca run must be reported via PAYE settlement agreement or it becomes a benefit-in-kind on the employee's tax code.