A 20% savings rate sounds ambitious. On a £3,000 take-home, that's £600 a month. Most people who reach it don't do it in one move — they get there gradually, over one to three years, as income grows and spending gets more intentional.
The difference between 10% and 20% saved each year is a decade of your life.
If you're saving 3%, go to 5%. If you're at 5%, go to 8%. Each increase is easier than the last because you adjust to the lower take-home. Automate the saving — move it on payday before you see it. The adjustment happens once; after that it's invisible.
There are only two levers: earn more or spend less. The categories worth examining are housing, food and transport — these three typically account for 60 to 70% of outgoings. Small percentage reductions here create more room than eliminating coffee ever will.
On the income side, career progression, additional skills, side income and switching employers are all worth considering. Savings rate improves fastest when income grows and spending stays flat.
If your employer contributes to a pension, that's part of your savings rate. A 5% employee contribution with 3% employer match is effectively 8% before you start — often closer to 20% than people realise.