Personal finance advice typically focuses on spending — budgeting, cutting costs, finding deals. Most adults can save more by increasing income than by cutting costs further. Tracking income trends produces insights about earning power that spending tracking misses.
What to track
Monthly take-home (after tax, NI, pension). Annual trend (is this growing?). Side income (freelancing, investments, rental). Specific raise dates and amounts.
What this reveals
Whether you're at market rate (compare to industry benchmarks). Whether your income is growing or stagnating. When job change conversations would be valuable. Whether side income is worth the effort.
Income tracking reveals career stagnation that monthly statements don't. Most workers under-track this and miss the lever.