How to categorize transactions for tax filing in Koody
Import bank statements and let Koody categorize your transactions. Keep receipts with business expenses, prepare reports, and share the records with your accountant.
Categorized transactions and supporting receipts give you records to review before filing.
At a glance
To categorize transactions for tax filing, group income and expenses by their business purpose, separate personal spending and transfers, and keep the documents supporting each entry.
Import your bank and credit card statements into Koody for automatic categorization. Review the results, attach receipts, then prepare a profit and loss report, a Schedule C preparation worksheet, or a transaction export for your accountant.
Most people are not looking for a full accounting overhaul. They just need their transaction history in one place, clean enough to hand to an accountant or organized enough to support what goes on the return.
The usual problem is not a lack of data. It is that the data is scattered across checking accounts, credit cards, old budgeting apps, spreadsheet exports, screenshots, and a drawer full of receipts.
This is where Koody's import tools are genuinely useful. You can bring bank statements and transaction exports into one place, let Koody categorize the transactions, fix categories in bulk, and keep receipts attached to the right payments. Those Business records support your P&L, Schedule C worksheet, and exports for your accountant.
And if the proof you need is not a paper receipt, that is fine too. Koody can keep supporting files such as PDF invoices and email screenshots attached to the matching transaction, so your categorization work and your documentation stay together.
Whether you prepare your own return or work with an accountant, having the categorized transactions and supporting documents together makes it easier to check the figures before filing.
Important: Koody for Business helps you generate profit and loss reports and prepare Schedule C records; it does not yet file tax returns. This guide is general information, not personalized tax or legal advice. Review your records before filing and consult a qualified professional when you need advice on deductions or final tax treatment.
Organize records for tax filing
Categorized records help when:
You tracked part of the year, then fell behind.
You need to bring bank and credit card history together.
Your accountant asks for income and expenses grouped by category.
You need records ready in case you have to support items on your return later.
A category total helps you review a business cost across the year. The individual transactions show which payments contributed, while receipts and notes explain what you bought and its business purpose.
The IRS recommends keeping records that show income and expenses and support the amounts on your return. Keep the underlying documents alongside your categorized history.
Before you start
Choose the tax year or review period before you upload anything.
Gather:
PDF or CSV statements with individual transactions for each bank account or credit card.
A clear date range for the tax year or period you are catching up on.
Any receipts, screenshots, or notes for expenses your accountant may ask about.
Exports from older budgeting apps, if that is where some of the year still lives.
Use statements that include dates, descriptions, and amounts. Summary-only reports leave out the detail needed to review individual payments. If you have an Excel export, save it as CSV before uploading.
Keep each account's files separate so you can import them into the matching Koody account. Check the statement periods for gaps and overlap.
Step 1: Import one account at a time
Start with your main business checking account or the credit card used for business purchases.
In Koody, open Business > Overview > New > Import Bank Transactions. Choose the destination account, upload its statement, and select Import. If the account does not exist yet, add it under Business > Banks first. Check that a business account is assigned to Business: its scope guides automatic categorization.
Koody extracts the transactions, cleans descriptions, and assigns categories. Review the import results, then open the imported transactions to check the details.
Keep checking, savings, and credit card records in their matching Business accounts.
Import each credit card separately and keep card payments distinct from purchases. Our credit card import guide covers purchases, refunds, and payments in more detail.
Step 2: Categorize transactions for tax filing
Koody automatically categorizes the imported transactions, giving you income and expenses grouped for review. You can change any category, including when a familiar merchant supplied something different from your usual purchase.
After upload, review the transactions with tax prep in mind:
Use bulk edit for transactions that need the same correction.
Review transfers and credit card payments so they do not read like deductible spending.
Check refunds against the original purchase and review reimbursements separately.
Separate personal purchases and owner movements from business income and expenses.
If your CSV already has categories, choose whether to use them or let Koody categorize the import.
When you correct imported descriptions or categories, you can ask Koody to remember the edits for matching future imports. That saves you from repeatedly sorting the same suppliers and subscriptions.
Koody groups business income and expenses into categories you can use for reports and tax preparation.
Split mixed purchases between the appropriate categories. For example, a $120 order containing $80 of business supplies and $40 of household items can be split between Business and Personal categories. Only the Business allocation belongs in your business records.
Record money moving between your own accounts, including credit card repayments, as transfers. Recording the purchase and then treating the repayment as another expense would overstate spending. For money you take from the business for personal use, create a transfer and categorize it as Owner Draw / Personal.
Step 3: Attach receipts and notes
Open a transaction to attach its receipt or PDF invoice and add a note explaining the business purpose. A screenshot of an emailed receipt can also help preserve the purchase details.
For US federal tax records, the IRS says supporting documents should establish the payee, amount, payment, date, and what was purchased or received. You may need several documents to establish all of those details. A statement entry alone may not explain the business purpose.
Keep the evidence required for the expense you intend to claim, including any additional records for travel, gifts, or vehicle use. Keeping those documents beside the transaction makes them easier to find when preparing your return.
Step 4: Prepare reports and share records
Once you have reviewed the transactions, open Business > Reports > Profit & Loss. Choose the period to see revenue, business costs, and profit, with the individual transactions behind the totals available to inspect. You can compare periods and download the report for your accountant.
For US sole-proprietor tax preparation, open Business > Reports > Schedule C. The preparation worksheet organizes USD Business records against Schedule C lines. Review the figures, complete any relevant inputs, and download the worksheet for your accountant.
Review the Schedule C worksheet alongside the transactions and supporting documents.
Share the transaction detail too. Open Business > Transactions and choose the records your accountant requested.
Before exporting, set the filters that make the file useful:
Date range for the tax year or requested review period.
Specific bank or card accounts.
Expense-only or income-only views when appropriate.
Category filters for work costs, side-hustle spending, reimbursements, or similar groups.
Search terms when a preparer asks about one merchant or one type of transaction.
Then export as CSV, Excel (.xlsx), or JSON, or use Send to Accountant to email the file directly from Koody.
P&L and Schedule C downloads come from their respective report pages; Send to Accountant sends a transaction export. Agree which supporting documents your accountant needs and share those separately as requested.
Avoid tax-prep import mistakes
A few common mistakes create most of the rework:
Mixing manual entries with imported history without checking for overlap.
Uploading multiple accounts into the wrong destination account.
Sending only a summary when your accountant has asked for individual transactions too.
Leaving credit card payments mixed in with real spending.
Exporting without reviewing categories and making any necessary corrections.
Forgetting to attach receipts or notes for the transactions most likely to be questioned.
Before sharing, compare the imported date ranges with your statements, check category totals, and resolve any unexplained gaps or duplicates.
Turn categorized transactions into tax-prep records.
Bring your statements into Koody, review business expenses with their receipts, and prepare a P&L, Schedule C worksheet, and transaction export for your accountant.
1. Can Koody categorize bank statements for tax prep?
Yes. Import PDF or CSV statements into the matching account. Koody auto-categorizes the transactions, then you can review the categories, attach receipts, and prepare reports or a transaction export.
2. How should I categorize transactions for tax purposes?
Choose categories based on what each payment was for. Separate business income and expenses from personal spending, transfers, and owner movements. Review refunds against the original purchase and split mixed purchases between the appropriate categories. A category alone does not establish that an expense is deductible.
3. Can I use bank CSVs or Excel exports for tax prep?
Yes. Transaction-level bank CSVs and credit card exports are useful starting points for tax prep because they show dates, amounts, descriptions, and account activity. If your bank gives you an Excel file, you can usually save it as CSV before importing. Avoid summary reports when possible, because your accountant will usually need transaction-level detail, not just category totals.
4. How should I handle credit card payments and transfers before tax export?
Review credit card payments and transfers separately from actual purchases. A card payment is usually money moving between your own accounts, not a new deductible expense. Import each credit card into its matching Koody account, let Koody auto-categorize the card activity, then review purchases, refunds, payments, and transfers before exporting records for your accountant.
5. Can I send categorized transaction data to my accountant from Koody?
Yes. Open Transactions in Business, filter the period and records you need, and choose Export. Download the file or use Send to Accountant to email the transaction export. P&L and Schedule C downloads are available from their respective report pages.
6. Can Koody send my transaction data directly to the IRS?
Not yet. Koody prepares business records and a Schedule C worksheet for review. It does not yet file tax returns or transmit them to the IRS.
7. What if most of my tax-related spending is on a credit card?
Import each credit card statement into its matching Koody account. Review the purchases and refunds there, and check that paying the card has not been counted as another expense.
8. Do I need perfect categories before I export data for tax prep?
No. Koody automatically categorizes imported transactions, and you can change any category. Before exporting, review the categories and make any necessary corrections, check transfers and card payments, and attach receipts or notes where the business purpose needs explaining.
9. Which tax-prep features are paid?
Statement imports, profit and loss reports, and the Schedule C preparation worksheet are paid features.
Sources
IRS recordkeeping guidance, accessed November 2, 2026:
