Bank Feeds vs CSV Bank Statement Import: Which Suits You?

If you have more than a handful of transactions a month, an Open Banking feed is usually the better choice: it's automatic, it uses the bank's own figures and it's hard to get wrong. A CSV bank statement import still earns its place for back-filling history, for accounts that won't connect, and for people who'd rather control exactly when data comes in. Plenty of businesses end up using both.

Two ways to get the same lines into your books

Picture Grace, who runs a dog-grooming van in Norwich. She has a business current account, a savings pot and a business credit card. Every transaction on all three needs to end up in her books.

She can get them there two ways:

• Open Banking feed. She connects each account once, approves it in her bank's app, and new transactions flow in on their own.
• CSV import. Once a month she logs into online banking, downloads a statement as a CSV file (a plain spreadsheet format), and uploads it to her bookkeeping software.

The end result looks identical: a list of dated transactions waiting to be categorised. The difference is in the effort, the timing and the ways each one can go wrong.

The side-by-side

Neither column is "perfect". They fail differently, and that's the useful thing to know.

Where feeds win

You forget less. The biggest bookkeeping problem isn't bad categorisation. It's a three-month gap nobody noticed. A feed doesn't need you to remember anything.

Fewer hands on the numbers. The amounts come straight from your bank. Nobody opens a file in a spreadsheet and accidentally sorts one column without the others (we've all done it).

Your figures stay current. If you want to know on a Wednesday whether a customer's paid, a feed will usually have it. A CSV import won't, unless you've just done one.

Where CSV import wins

Back-filling. When you first connect a feed, your bank may only share a few months of history. If you're starting your books from the beginning of your financial year, a CSV covers the earlier months.

Accounts that won't connect. Some smaller banks, building society accounts or foreign accounts aren't reachable through a feed. A CSV gets them in anyway.

Control. Some bookkeepers like to bring in a full, closed month in one go, check it against the PDF statement and then work through it. That's a perfectly good way to run a small set of books.

Plan limits. If your software limits how many live feeds you can have, CSV is how you handle the extra accounts without upgrading.

The ways CSV imports go wrong (and how to dodge them)

We'll be honest: most of the mess we see from CSV imports comes from the same five or six mistakes.

1. Overlapping dates. You import 1 to 30 Sep 2026, then later import 25 Sep 2026 to 31 Oct 2026. Six days are now in twice. Always import whole, non-overlapping periods, and note the last date you brought in.
2. Day and month swapped. A UK bank writes 04/10/2026 for 4 Oct 2026. If the import thinks it's US format, it reads 10 Apr 2026. Check the first few rows after every import.
3. Signs flipped. Some banks put money in and money out in separate columns. Others use a single amount column with minus signs. If the import gets this wrong, every payment shows as income. You'll spot it fast because your bank balance will look wonderful.
4. Editing the file first. Opening a CSV in a spreadsheet and saving it can quietly change dates and strip leading zeros. Import the file straight from the bank where you can.
5. Missing a month. No error message warns you. The only thing that catches it is reconciling to the statement's closing balance.

A worked example: the overlap trap

Grace's balance on her bank statement at 31 Oct 2026 is £4,318.75. Her books say £4,598.75. That's £280.00 too much in the books.

She looks at the period from 25 to 30 Sep 2026, which she imported twice. In those six days there were three transactions:

Doubled up, those add £65.00 + £240.00 − £25.00 = £280.00 to her books. That's exactly the difference. She removes the second copy of each, and the books agree with the bank at £4,318.75.

This is also why reconciliation matters whichever method you use. The difference told her where to look.

What about feeds going wrong?

Feeds aren't flawless either. The usual issues:

• Reconnection duplicates. If a feed is disconnected and reconnected, some software re-imports recent transactions. Check the overlap the first time you reconnect.
• Pending items. A card payment you made today might not come through until it posts.
• Consent lapses. Every so often you'll need to reconfirm the connection. If you ignore the prompt, the feed quietly stops, and nothing new arrives until you approve it again.

That last one is the feed version of "missing a month". Reconciling monthly catches it.

So which should you use?

A simple way to decide:

• Busy main account, lots of small transactions: feed, no contest.
• Savings account with two transfers a year: CSV is fine.
• Starting your books partway through the year: feed going forward, CSV for the months before.
• A bank that can't connect: CSV.
• You're behind and catching up: CSV for the old months in clean, whole-month chunks, then switch to a feed.

Most people land on a mix. Feed the account that does the work, import the quiet ones.

A short checklist for every CSV import

• [ ] Download the full statement period from your bank, no partial months
• [ ] Note the first and last date in the file
• [ ] Don't open and resave it in a spreadsheet before importing
• [ ] After importing, check three rows: one payment in, one payment out, one near a month boundary
• [ ] Compare the closing balance in your books with the statement

How HelloBooks helps

HelloBooks lets you connect your bank through Open Banking (most UK banks and cards), and also lets you import a CSV bank statement for accounts that won't connect or for older history.

On the Free plan you get one live bank feed, plus CSV import, for up to 200 transactions a year. Pro (£14.99 a month) has unlimited bank connections, so every account can be a feed if you want it to be. Either way, transactions land in the same review list for you to confirm or change categories, and the reconcile screen suggests a match for each statement line with a confidence score and the reason it picked it. Have a look at the bookkeeping features or the Free and Pro plans.

FAQs

Is a CSV import less accurate than a bank feed?

Not in itself. The numbers come from your bank either way. The risk with CSV is human handling: overlapping periods, swapped date formats or missed months.

Can I use a feed and CSV on the same account?

You can, but be careful with the dates. A common pattern is CSV for history up to a set date and the feed from the next day onwards, with no overlap.

What CSV format do UK banks use?

It varies by bank. Most give you a date, a description and either one signed amount column or separate paid-in and paid-out columns. Check the first rows after importing.

Why did my feed stop bringing in transactions?

The most common reason is that the connection needs reconfirming with your bank. Reapprove it and new transactions should flow again.

Should I use CSV for my credit card too?

If the card can connect through Open Banking, a feed saves time. If not, CSV works the same way as for a current account.

Pick the one that matches how often you actually sit down with your books, then let reconciliation keep both honest.

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