The salary trajectory of a Sales Assistant ranges between locations and employers. The salary starts at £19,641 per year (estimate) and goes up to £91,259 per year (estimate) for the highest level of seniority.
The estimated average salary for a Sales Assistant at Shell is £47,339 per year or £23 per hour, but some professionals have reported earning up to roughly £76,394 per year (90th percentile). The typical pay range is between £36,919 (25th percentile) and £61,004 (75th percentile) annually. This is based on 48 salaries submitted by Shell Sales Assistant professionals on Glassdoor, as of Jul 2026.