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Bank CSV Guide

How to Find Business Deductions in Your Bank Statement (2026)

Your bank statement is a goldmine of tax deductions. The problem is that they're buried under cryptic merchant codes, mixed in with personal spending, and easy to overlook when you're scanning through hundreds of transactions. Here's how to find them.

Agnė, founder of Categorize My Expenses
Written by Agnė

Key Takeaways

  • The average self-employed person misses $2,000 to $5,000 in deductions per year, mostly from small recurring charges they forget to claim: software subscriptions, bank fees, partial phone and internet bills.
  • Bank statements use cryptic merchant codes. 'SQ *COFFEESHOP' is Square, 'PAYPAL *ADOBESYS' is Adobe via PayPal, and 'AMZN MKTP US' is Amazon. Learning to read these codes is the first step to finding missed deductions.
  • Don't just look for obvious business purchases. Partial deductions (phone bill, internet, home office) add up fast and most freelancers either skip them or claim the wrong amount.
  • If you use one bank account for personal and business, you need to review every single transaction. The business deductions are mixed in with groceries and Netflix.

Your bank statement is a goldmine of tax deductions. The problem is that they're buried under cryptic merchant codes, mixed in with personal spending, and easy to overlook when you're scanning through hundreds of transactions. Here's how to find them.

Most self-employed people leave money on the table every year. Not because the deductions don't exist, but because they don't realize what they're looking at. That $12.99 monthly charge labeled “CANVA*” is a business deduction. So is the $75 phone bill (at least partially). So is the “GOOGLE *WORKSPACE” charge you've been ignoring for months.

This guide walks you through the categories most people miss, how to decode the weird merchant codes on your statement, and a checklist you can use to scan your own transactions.

The Deductions Hiding in Plain Sight

When most people think “business deductions,” they think of big, obvious purchases: a new laptop, a plane ticket to a conference, a bulk order of supplies. But the deductions hiding in your bank statement are usually smaller, recurring, and easy to overlook. Here are the categories most people miss.

Software and subscriptions (Schedule C, Line 18: Office Expense)

These show up as small monthly charges and are easy to scroll past. But they add up fast. Look for these on your statement:

  • ADOBE *CREATIVE CLD ($54.99/mo)
  • CANVA* ($12.99/mo)
  • ZOOM.US ($13.33/mo)
  • GOOGLE *WORKSPACE ($14.40/mo)
  • SLACK T*SLACK ($7.25/mo)
  • DROPBOX* ($11.99/mo)

That's $115/month in software alone, or $1,380/year in deductions.

Bank and payment processing fees (Schedule C, Line 27a: Other Expenses)

These are some of the most commonly overlooked deductions because they feel like a cost of having an account, not a business expense. But if the account is used for business, they count.

  • Monthly service charges
  • Wire transfer fees
  • Stripe/Square processing fees (often embedded in deposits, not shown separately)
  • PayPal fees

Professional services (Schedule C, Line 17)

Anything you paid a professional to do for your business is deductible. These charges often appear once or twice a year, so they're easy to miss during a quick scan.

  • TURBOTAX or H&R BLOCK (tax prep software)
  • LEGALZOOM
  • Accountant payments

Internet and phone (Schedule C, Line 25: Utilities)

These are partial deductions, meaning you can only deduct the percentage you use for business. But even a partial deduction on a bill you pay every single month adds up to serious money.

  • COMCAST, SPECTRUM, ATT, VERIZON, T-MOBILE

Most self-employed people claim 40–70% business use for their phone and internet. A $75/month phone bill at 60% business use is $540/year in deductions.

Domain names, hosting, and website costs (Schedule C, Line 27a)

If you have any kind of web presence for your business, the costs of maintaining it are fully deductible. These charges are often annual, making them easy to miss.

  • GODADDY, NAMECHEAP, SQUARESPACE
  • CLOUDFLARE, VERCEL, AWS

Decoding Cryptic Merchant Codes

One of the biggest reasons people miss deductions is that bank statements don't use plain English. Instead of “Adobe Creative Cloud,” your statement says “ADOBE *CREATIVE CLD.” Instead of “Amazon,” it says “AMZN MKTP US*.” Here's a reference table of common codes and what they actually mean.

AMZN MKTP US*       Amazon Marketplace
SQ *                 Square point-of-sale
TST*                 Toast POS (restaurant)
PAYPAL *             PayPal transaction (check description for actual merchant)
GOOGLE *             Google services (Workspace, Ads, Cloud)
APPLE.COM/BILL       Apple subscription (iCloud, Apple One, App Store)
SP * or STRIPE       Shopify/Stripe payment
ORIG CO NAME:        ACH transfer (employer name follows)
CHECKCARD            Debit card purchase (actual merchant follows)
POS PURCHASE         Point-of-sale purchase
RECURRING PAYMENT    Subscription charge

When in doubt, search the code online. Someone on a forum has almost certainly asked “what is [code] on my bank statement?”

The Partial Deduction Checklist

Not every deduction is all-or-nothing. Many of your everyday expenses are partially deductible based on how much you use them for business. These are the ones most freelancers skip entirely because they don't know they can claim a portion.

Cell phone bill

Typical business-use percentage: 50–70%. If you use your phone for client calls, email, scheduling, and navigation to job sites, the business portion is deductible.

Home internet

Typical business-use percentage: 30–60%. If you work from home and rely on internet for your business, you can deduct the business portion.

Car expenses

Based on business miles vs. total miles. If 40% of your driving is for business, 40% of your car expenses (gas, insurance, maintenance) are deductible. Alternatively, you can use the standard mileage rate.

Amazon Prime membership

Based on the percentage of your orders that are for business. If half your Amazon purchases are business supplies, half the Prime membership fee is deductible.

Home office

Based on the square footage of your dedicated workspace as a percentage of your total home. A 150 sq ft office in a 1,500 sq ft home means 10% of rent, utilities, and insurance are deductible.

Most freelancers skip these entirely because they don't know they can claim a partial deduction. That's leaving $1,000+ on the table every year.

For a detailed walkthrough of how phone bill deductions work, see our guide to categorizing your phone bill on Schedule C.

A Checklist for Scanning Your Statement

Next time you sit down with your bank statement, look for these items. Each one is a potential deduction that's easy to miss during a quick scroll.

  • Any recurring monthly charge (subscriptions are almost always deductible if business-related)
  • Charges from office supply stores (Staples, Office Depot)
  • Shipping charges (USPS, UPS, FEDEX)
  • Professional organization dues
  • Business insurance payments
  • License and permit renewals
  • Education and training (courses, conferences, books)
  • Advertising charges (Google Ads, Facebook Ads, Yelp)
  • Business meals (look for restaurants near client locations)
  • Parking (at client sites, not commuting)

Stop Scanning. Start Categorizing.

Finding deductions is step one. But once you've identified them, you still need to categorize every transaction into the correct Schedule C line, flag mixed-use expenses, and calculate your totals. For 800+ transactions, that's hours of spreadsheet work.

The deductions you spotted in 10 minutes of reading this guide? An AI categorization tool catches those automatically, plus the ones you'd miss at row 400 when your eyes glaze over.

Related guides:

Find every deduction. Automatically.

Upload your bank CSV and get every transaction categorized into Schedule C lines. The AI reads cryptic merchant codes, flags partial deductions, and catches the subscriptions you forgot about. Upload once and the AI handles it. $39.

Disclaimer: This article is for educational purposes only and does not constitute tax, legal, or financial advice. Tax rules change, and individual situations vary. Consult a qualified tax professional for advice specific to your situation. Categorize My Expenses is a financial data organization tool. It is not a tax preparer and does not provide tax advice.

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