🏦 FinancialOS

How to budget without linking your bank account

Most budgeting apps ask for your online banking login on the first screen. You do not have to accept that trade to run a budget, and the manual method takes less time than people expect.

Why people look for this

Linking accounts is convenient, and for many people it is a perfectly reasonable choice. But there are real reasons to decline it:

• Your credentials sit with a third party. Most apps do not connect to your bank directly. They use an aggregator, which means your login or a long-lived token is held by a company you did not choose and may never have heard of.
• Connections break. Banks change their login flows, and aggregator links silently stop updating. People often discover this weeks later, when a month of transactions is missing.
• Some institutions are never supported. Small credit unions, foreign accounts and some brokerages simply do not appear in the list.
• You notice less. This is the one nobody mentions. When every transaction imports itself, you can run a budget for a year without ever looking at a single purchase. Entering things by hand is slower, and that is part of why it works.

The method

1. Decide what you are actually tracking

The most common mistake is trying to categorise every coffee from day one. Start with the numbers that change your decisions:

• Money in, for the month. Salary, any side income, anything unusual.
• Fixed costs, the ones that are the same every month. Rent or mortgage, insurance, subscriptions, loan payments. These take five minutes once and then rarely change.
• Variable costs, the ones worth watching. Groceries, eating out, fuel, shopping. This is where a budget is either useful or pointless.
• What you saved or invested. Treat it as a line, not as whatever happens to be left over.

Four groups is enough to start. You can split them later once you see where the money actually goes.

2. Pick a rhythm you will keep

There are two workable rhythms and one that fails.

• Weekly, about five minutes. Open your banking app, look at the week's transactions, enter the variable ones. This catches things while you still remember what they were.
• Monthly with statements, about twenty minutes. Download the month's statement and work through it in one sitting. Slower per session, but harder to skip.
• Whenever you remember. This is the one that fails. Not because of the effort, but because a half-entered month tells you nothing, and a budget that tells you nothing gets abandoned.

3. Use CSV statements instead of account access

This is the part most people miss. Nearly every bank lets you download your transactions as a CSV or spreadsheet file from the same screen where you view them. You are exporting a file, not granting standing access, and you can do it as often as you like.

It is usually under a heading like "Download", "Export" or "Statements" in the account view. The file will have a date, a description and an amount per row, which is everything a budget needs.

4. Compare against a target, not against zero

A list of what you spent is a record, not a budget. The useful step is setting a number per category before the month starts, then comparing. The gap is the information. "Groceries 650 planned, 487 actual" tells you something. "Groceries 487" tells you almost nothing.

How long this really takes

For a household with a normal number of accounts, entering a month by hand is roughly fifteen to twenty-five minutes, and less once your fixed costs are set up and simply repeat. That is the honest number. It is more than zero, which is what a linked app costs you in theory, and it is less than the hour people imagine.

What you get for it is a budget that never breaks, works with every institution including the ones no aggregator supports, and requires nobody to hold your banking credentials.

Where this fits

You can do all of this in a spreadsheet, and plenty of people do. A spreadsheet's weakness is that the month-to-month structure is something you have to build and maintain yourself, and the comparison against target is usually where it falls apart.