Decide Whether to Save More or Invest When You Have Limited Surplus

You have a small surplus each month and you are not sure whether to build savings or start investing. The answer depends on things like whether your emergency fund is solid, the rate on any debt you are carrying, and your time horizon. This works through all three and makes a direct recommendation: where to put it, in what order, and how to split if both matter.

Help me decide whether to put my limited monthly surplus into savings or investments.

For the financial situation described:
1. Whether the emergency fund is adequate (three to six months of essential expenses) before any investment makes sense
2. The cost of any existing debt relative to likely investment returns (this changes the calculus significantly)
3. The time horizon available, and why this matters more than risk tolerance for this decision
4. A direct recommendation: which to prioritise, in what order, and what amount to direct to each if both are relevant

<paste>
[describe your monthly surplus, current savings, any debts and their rates, and your general financial goals and timeline]
</paste>