# Using Revolut next to your main bank

> Most people end up with a digital bank beside the one their salary arrives in. It works well, and it quietly breaks every spending figure either app can show you.

Source: https://trybica.com/guides/neobank-plus-main-bank/
Updated: 2026-08-18

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The arrangement is now close to standard. The salary arrives at a Portuguese retail bank — Caixa, Millennium, Novo Banco, whichever one was nearest when you started working. The day-to-day card spending happens on Revolut, or N26, or Wise, because the rates were better and the app is nicer.

It is a sensible arrangement. It also makes both apps' spending figures wrong, in a specific and predictable way that is worth understanding before you conclude that either of them is broken.

## What the top-up does to the numbers

Every month you move some money from the main account to the digital one. Say €700.

From the main bank's point of view, €700 left. It has no idea where it went or what happened next, so its spending breakdown records €700 of outgoings, probably filed under transfers or simply uncategorised. From the digital bank's point of view, €700 arrived. It looks like income.

Now look at what each app can tell you. The main bank shows your salary and a large mysterious outflow, with almost none of your actual spending, because your actual spending happened elsewhere. The digital bank shows all your spending and an income of €700 a month, which is not your income. Neither app is malfunctioning. Each is describing its own half of a life that spans two banks.

The compounding problem is that if you add the two together naively, you double-count: the €700 appears once as spending at the main bank and again as whatever you bought with it at the digital one. [Transfers between your own accounts are not spending](/guides/transfers-are-not-spending/) goes through the arithmetic, and it is the single most common reason people conclude a finance tool is producing nonsense.

## The parts that live in different places

Beyond the top-up, the split scatters things that belong together:

**Subscriptions end up on both cards.** The ones you set up years ago sit on the main bank's card; the ones you set up recently sit on the digital one. Neither list is complete, which is exactly how a subscription survives unnoticed — see [finding the subscriptions you forgot](/guides/find-forgotten-subscriptions/).

**Fixed costs stay at the main bank.** Rent, utilities, the mortgage, insurance — direct debits mostly stayed where the salary is. So the main bank sees your obligations and the digital bank sees your life, and the [fixed-versus-variable split](/guides/fixed-vs-variable-spending/) is invisible from either side.

**Foreign currency lands on the digital card.** Which is why it is there. It also means holiday and online spending is systematically in the account that has the least context about the rest of your money.

**Savings drift somewhere third.** A savings account, a term deposit, Certificados de Aforro. None of it visible from either app.

## Getting one picture back

There is no arrangement of accounts that fixes this. Splitting your money across banks is the right call for good reasons — better rates, better cards, not having everything in one institution — and the answer is not to consolidate back into one bank you like less.

What is required is something that reads both, recognises that the €700 leaving one account and the €700 arriving in the other are the same event, and counts it once. That is what an aggregator does, and it is essentially the only reason to want one: [seeing all your accounts in one place](/guides/connect-all-your-banks-in-one-app/) covers what setting it up involves.

Two things worth checking on whatever you use. First, that the top-up is genuinely being paired rather than merely hidden — a tool that drops all transfers will also drop a real payment to someone else that happens to look like one. Second, that both institutions are supported by name before you commit to anything.

## The smaller point underneath

It is worth noticing what happened here. Nobody made a mistake. Each bank shows an accurate, well-designed summary of the account it holds, and the combination of two accurate summaries is a misleading picture.

That is generally true of money split across institutions, and it gets more true the more accounts you accumulate. The figure you actually want — what you spent, in total, on everything — is not held by anyone. It has to be assembled.