Zacatecas → Guanajuato · Autopista 45D Zacatecas-Aguascalientes
Coming back from Zacatecas, Zacatecas, to León, Guanajuato, the return leg also clocks roughly 257 km (160 miles) typically along Autopista 45D Zacatecas-Aguascalientes, but the traffic picture shifts considerably compared with the outbound segment. Zacatecas, the capital zacatecana y patrimonio minero colonial reconocido por la UNESCO, fades behind the wheel while the vehicle pushes back toward León, the capital del calzado y mayor ciudad de Guanajuato, often after a full day of meetings, site visits, or prospecting calls. Plan 2h 51m 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 517.88 for 21.4 liters (5.7 gallons). The corresponding reimbursement on the way back reaches MXN 1670.50 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 257 km (160 mi) between Zacatecas and León, reimbursement of MXN 1670.50 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 Zacatecas→León run must be reported via PAYE settlement agreement or it becomes a benefit-in-kind on the employee's tax code.