Matching accounts to tax lines
Why each income and expense account needs a tax line, how to assign one, and how the tax-line report shows gaps.
Updated Nov 2, 2026
A tax line says where an account's totals go on the return. For example, "Schedule C, line 8" is advertising for a US sole proprietor. Each income and expense account should have one.
Why it matters
Totals for a return are built from the tax lines, not from account names. An account without a tax line is left out of the return's figures and is listed apart. The month-end checklist also flags accounts used in the month that have no tax line.
Assigning a tax line
- Open the chart of accounts in the Accountant view.
- Open the income or expense account.
- Choose or type the tax line, such as "Schedule C, line 8". Use the wording from your return or your accountant's list.
- Save. The change is recorded in the edit history with the old and new values.
Balance sheet accounts such as cash, loans and capital do not need a tax line for the return.
The tax-line report
The tax-line report groups income and expenses for a period by tax line. Each group shows the totals and the accounts in it. Accounts with no tax line appear in a group called "No tax line chosen", with a count. Work through that group until it is empty.
What the product checks
- Filling Schedule C from the books reads Schedule C lines only. Any other tax line is listed as not used, so nothing is dropped without notice.
- The month-end checklist shows "Accounts are matched to tax lines" as advice, not as a block.
Tips
- Set tax lines when you create the account, not at year end.
- If a line is wrong, change the account's tax line. The change stays in the edit history. Do not move entries to another account just to change the line.