Can you trust the numbers in Mercury?
Mercury is a fintech company that offers online business banking for startups, small businesses and growing companies, with banking services provided by partner banks. Its own help pages give 3 reasons its numbers can look different from what you expect. The first to rule out: A card charge can first show for more than was really spent, as Mercury's help pages say, because some merchants place a larger hold before the final amount settles.
Is it broken, or just counted differently?
A number can look wrong because the business changed, or because of how Mercury counts it. Below is what Mercury keeps, where its help pages say the numbers can differ, and how to check them yourself.
What does Mercury keep track of?
Mercury keeps one list of every transaction across a business's accounts, with categories, receipts and notes attached.
In Mercury's own words:
This is where you can review all transactions from all accounts, categorize transactions, add receipts and add notes.
Navigating the Accounting page, read 2026-11-12.Mercury keeps a separate total of money on its way out that has not yet left the account.
In Mercury's own words:
Your pending balance is the total of all pending outgoing transactions.
Understanding your Mercury balances, read 2026-11-12.
What can make Mercury's numbers look wrong?
A card charge can first show for more than was really spent, as Mercury's help pages say, because some merchants place a larger hold before the final amount settles.
In Mercury's own words:
If you're seeing a pending amount that's greater than your purchase, it's likely a pre-authorization.
Understanding pending card transactions, read 2026-11-12.Money that has been moved into Treasury but is still pending will not show in that balance yet, as Mercury's help pages explain.
In Mercury's own words:
Your Treasury balance is the total of all your available and invested Treasury funds and doesn't include pending deposits.
Understanding your Mercury balances, read 2026-11-12.A balance can change after the fact when a pending charge drops away or fails, as Mercury's help pages say, so a figure noted earlier may no longer hold.
In Mercury's own words:
If a charge falls off or fails to complete, the balance will adjust accordingly.
Understanding your Mercury balances, read 2026-11-12.
How do I check Mercury's numbers myself?
Mercury picks some categories on its own, so an owner can look over them and fix any that are wrong before trusting category totals.
In Mercury's own words:
In the event that we get it wrong, you can re-categorize any transaction from either the Accounting or Transactions page.
Navigating the Accounting page, read 2026-11-12.An owner can download all transactions, or just a filtered set, and add them up line by line.
In Mercury's own words:
Click Export all, or apply filters and click Export filtered
Exporting transaction data, read 2026-11-12.Downloading the receipts attached to transactions lets an owner match each charge to its paperwork.
In Mercury's own words:
You can bulk download receipts, bills, and other documents that were previously attached to your transactions.
Exporting transaction data, read 2026-11-12.
How does Mercury work with Feder?
Connect Mercury to Feder and it joins your Money apps. Feder only reads. It never changes anything in Mercury.
When you connect Mercury, Feder checks the connection straight away and shows Connected only when that check passes. If a reading cannot be taken later, Feder shows it as not read, never as zero.
Other apps that feed Money
- Striperevenue
- PayPalrevenue
- WooCommercerevenue
- Rechargesubscription revenue
- Zohoinvoiced
- Wave Accountinginvoiced
Where do these answers come from?
Everything this page says about Mercury comes from Mercury's own pages, quoted above with the date we read them. Last reviewed 2026-11-12. We read them again by 2027-11-12. If one changes, this page changes or comes down.
Know the day a number breaks, not the month after.
Some numbers are too quiet to judge daily, such as a form filled in a few times a week. Until there is enough of your own history to judge a change, Feder says it is still learning and scores nothing, rather than guessing.