Envelope Budgeting on iPhone: How It Works in Brim
Envelope budgeting means you split your income into “envelopes” — one per spending category — and you only spend what’s in each envelope. When an envelope is empty, you stop spending in that category (or move money from another). Brim does this digitally: each category is an envelope, you assign it an amount, and the app tracks what’s left as you spend.
What is envelope budgeting?
The idea is old and physical: cash your paycheck, divide the bills into labelled envelopes — “Groceries,” “Eating out,” “Transport” — and when the Groceries envelope is empty, you’re done buying groceries this month. It works because the limit is visible and concrete before you spend, not after.
Digital envelope budgeting keeps that discipline without the cash. You assign “€500 to Food,” “€100 to Transport,” and the app counts down from each limit as you log purchases.
How do I set up envelopes in Brim?
- Go to your budget and pick a category (or create one).
- Assign it an amount — that’s the size of the envelope.
- Repeat for each category you want to control.
- The app adds your envelopes up and checks them against your income.
How granular you go is up to you — a few big envelopes or many small ones both work. (More on finding the right number below.)
Categories vs groups: how Brim organizes envelopes
In Brim, a category is an envelope and a group is a folder of envelopes. Groups let you roll related categories up into one bigger number, so you can see both the detail and the big picture at once.
For example, a Housing group budgeted at €1,000 might contain:
- Rent — €800
- Electricity — €50
- Water — €50
- Internet — €50
- Home insurance — €50
You see €1,000 for Housing at a glance, and the full breakdown underneath whenever you want it.
Budget tab vs Remaining tab — what’s the difference?
This trips up almost everyone at first, so it’s worth being precise:
- The Budget tab is where you plan. It shows the envelope sizes — what you intend to spend in each category.
- The Remaining tab is where you see reality. It shows how much of each envelope you’ve actually used — for example, “Groceries: €30 spent out of €50.”
Plan in Budget. Check yourself in Remaining. They’re two views of the same envelopes.
Why is my budget ring empty even though I set up a budget?
Because you haven’t logged any spending yet. Assigning amounts fills your plan, but the ring and the Remaining tab only move when you add transactions.
The fastest way to log spending is automatically via Apple Pay and a Shortcut, or with a double-tap on the back of your iPhone.
What about rent and bills — are those envelopes too?
Yes — and they’re a great example of categories and recurring transactions working together. Rent can be its own category (an €800 envelope) and a recurring transaction of €800 a month. When you set both, the recurring transaction fills the rent envelope automatically every month — you never re-enter it by hand.
That does two things. It keeps your left-to-spend number accurate with zero effort, and it gives you an honest, month-after-month picture of where your money actually goes. Seeing rent sit at the same €800 every month can even tell you something useful — like whether your rent is eating too big a share of your income.
For the full setup, see how to budget for rent and fixed bills.
Frequently asked questions
What happens when an envelope is empty? You’ll see the category at its limit (e.g. “150 / 150”). Nothing stops you from spending more, but you’ll see it go over — which is the whole point. You can move room from another category.
How many envelopes should I have? It’s genuinely up to you — Brim’s onboarding lets you set up to 20. Some people track every penny with lots of fine-grained envelopes; others keep just a handful of big ones. Both are valid. Personally we lean toward more envelopes: the more specific they are, the better you understand where your money actually goes. If it ever starts to feel like a lot, group related categories together so you keep the detail without the clutter.
Can I budget money I haven’t earned yet? You can only assign up to your income. If you try to assign more, Brim flags it as over-assigned — a reminder that envelopes can’t hold money you don’t have.