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Money management

How much of my income should I invest each month?

A practical framework for deciding how much to invest monthly, including trade-offs and budgeting notes.

Published 16 August 2026 3 min read

The short answer

There is no fixed percentage for everyone. Decide based on your essential expenses, emergency savings, short-term goals and risk appetite. Many people use a budgeting rule to prioritise an emergency buffer before increasing investment contributions.

A simple framework

Cover essentials and an emergency fund (three to six months of reasonable expenses or a buffer you are comfortable with). Then choose a contribution that fits your goals. Regular small contributions are often easier to sustain than large one-offs.

Trade-offs

Higher contributions increase potential long-term growth but reduce short-term liquidity. Balance retirement saving, home-buying goals and current needs.

What this means in practice

  1. 1Calculate essential monthly outgoings and a suitable emergency fund target.
  2. 2Decide on a contribution you can sustain without stress.
  3. 3Review contribution levels yearly or after major life changes.

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