Define the target precisely
Research the real cost rather than estimating. A 'holiday fund' is vague; 'flights 8,400, accommodation 6,000, spending 4,000 — total 18,400 by November' is a plan you can actually test.
Work backwards to a monthly figure
Divide the remaining amount by the months available. If the result exceeds your surplus, one of three things must change: the amount, the date, or the budget. Deciding which now is far better than discovering it in month five.
Test it against your worst month
A contribution that only works in a good month will break the plan. Set the automatic transfer at a level that survives a lean month and add extra manually when you can.
Automate on payday
Schedule the transfer for the day after income arrives. Saving what is left at month end almost never works, because there is rarely anything left.
Keep goals separate and few
- One or two active goals at a time; more dilutes progress into invisibility.
- Separate the money from your spending account.
- Name the account after the goal — it measurably reduces raiding.
Review quarterly
Check progress every three months. Adjusting the date early is a normal part of a working plan, not a failure.