Start from real income
Budget with your take-home pay, not your salary. If your income varies, budget from your lowest normal month and treat the rest as a buffer. A budget built on your best month will break the first time income dips.
Choose a method that fits
The 50/30/20 rule is quick and flexible: half to needs, a third to wants, a fifth to savings. Zero-based budgeting assigns every pound or dollar a job. Weekly budgeting suits irregular income. The best method is the one you will actually keep using.
Automate and review
Automate savings and bill payments so the important items happen without willpower. Review once a month, not every day. Adjustments should be small and corrective, not a total reset that undoes your progress.