How to run a cash budget system (and why it works)
The envelope method in a digital world: how to use physical cash without losing track of where it goes.
Why cash budgets drift
Cards leave a receipt and a statement; a banknote spent in small increments (transport, tips, snacks) becomes invisible when you do not log it right away. The result: an app that says you still have money, an empty wallet, and the missing amount is not one large expense — it is a series of small unrecorded purchases. SmartJib calls this wallet leak.
The 4-step routine
- Log the expense before you put your wallet away: amount, category, wallet as the place.
- Keep unrecorded receipts in one pocket.
- Reconcile weekly: count cash in the wallet and compare to the balance SmartJib shows.
- Fund the wallet deliberately each week — the envelope system works for a physical wallet, not just paper envelopes.
Frequently asked questions
How much cash should I carry?
3–5 days of everyday spending. Beyond that, cash becomes hard to track. Keep the rest in a home safe or bank account.
Does SmartJib support multiple wallets?
You can add multiple "wallet" places if you use separate physical wallets (e.g. one personal, one work) or track cash in different currencies.
Should I track every tip and coffee?
Ideally yes. A 'daily small joys' category with a weekly cap often captures 10–15% of wallet spending cleanly.