Guide · Budgeting

How to keep a household budget without typing in every purchase

Updated 5 October 2026 · 5 min read

You can keep a household budget without typing in two ways: an app reads transactions straight from your bank account, or you scan your till receipts and let the app capture items, shop and category. The difference is detail: your bank only knows the total, the receipt knows every line.

What ways are there to track a household budget?

In Germany a budget book is called a Haushaltsbuch. There are four common approaches, and each answers differently who does the typing.

• Paper: a notebook or printed template, every expense written by hand. No data privacy question, but you do the maths.
• Excel or a spreadsheet: you build categories, formulas and charts yourself. Very flexible, but every row is typed in.
• Apps with a bank connection: transactions arrive automatically from your account and are sorted into categories.
• Receipt-based apps: you scan or photograph the receipt (Kassenbon) and the app reads shop, date and item lines. There is no bank connection.

Where do paper and Excel fall short?

They rarely fail technically; they fail on discipline. If you log the week's shopping on Sunday, the receipts are often lost or already fading (see faded receipts). Questions like "How much do I spend on drinks per month?" mean building and maintaining the spreadsheet yourself. In return you keep full control and hand no data to anyone.

What do budget apps with bank sync do?

They fetch account transactions through an interface to your bank, after you consent, and sort them into categories. That saves typing, especially for fixed costs, salary and card purchases. Providers of such services in Germany fall under the Payment Services Supervision Act (ZAG), and you typically grant access using your bank's login procedure.

The limits are different:

• A transaction shows merchant, date and amount, but not what was in the basket. 87 euros at a supermarket could be food, household goods and electronics.
• Cash payments do not appear at all.
• You have to give an app access to your bank account. Not everyone wants that.

How does a budget built from receipts work?

Bonstructer takes the other route: it reads the receipt instead of the account. You scan by camera, photo, PDF, QR e-receipt or pasted text. Long receipts can be photographed in several parts and are stitched together automatically. You can also forward e-receipts and invoices to bons@bonstructer.com; PDF and photo attachments are read automatically.

1. Capture the receipt. Scan, photograph or forward it. Shop, date and every item line with its price are read.
2. Check quickly. If a line is misread, fix it directly in the receipt. The original photo stays attached.
3. Analyse. Statistics show spending by category, by shop and month against month. See the home page for real examples of how well receipts are read.

Because every item is stored separately, you see what is behind the total: sweets, drinks, household. A notebook can also be shared with a partner or flatmates.

How do you ask for statistics in chat?

Instead of clicking through filters, you ask the way you would ask a person: by shop, month, category or a single item. For example: "What did I spend this month, by shop?" You get the answer as a table, a list or, on request, a chart such as a pie or bar chart.

Which method suits whom?

• You do not want to link accounts but still want analysis: receipt-based.
• You often pay cash or with several cards: receipt-based, since the receipt does not care how you paid.
• You want fixed costs and salary visible automatically: bank connection.
• You want to build everything yourself and upload nothing: Excel or paper.
• You want to know what you buy, not just where: receipt-based.

To be honest: a receipt-based budget does not capture bank transfers, rent or salary, because those have no till receipt. It is precise for everyday shopping, not for the whole account. If you want both, combine methods.

What happens to your data?

That depends on the provider and method. How Bonstructer handles sign-in, storage and sharing is explained in Budgeting app without bank access: privacy and in the privacy policy. This text is not legal or tax advice.