Schedule E line 13: other interest. Report deductible rental interest not paid to a bank or similar financial institution.
Schedule E Part I is a classification form. The total matters, but so does the line because each property gets its own column and the named lines tell a preparer what kind of cost produced the result. The 2025 Instructions for Schedule E are the controlling map for this walkthrough.
What belongs on Schedule E line 13
Include qualifying interest on seller financing, private notes, or other debt used for the rental when the lender is not the type reported on line 12. Trace proceeds to rental use.
Use the gross amount before netting reimbursements, processor fees, or unrelated costs unless the form instructions specifically call for a net figure. Keep each property tagged from the day the transaction is entered. A portfolio total without property detail cannot rebuild the columns on Part I.
What does not belong here
Do not include mortgage interest paid to banks, principal, late-payment penalties that are not interest, personal credit-card interest, or interest on borrowed cash used for personal spending.
Capital improvements do not become current expenses by choosing an operating line. IRS Publication 946, chapter 1, requires capitalization for a betterment, adaptation, or restoration. Those costs go to an asset schedule and reach Schedule E through line 18 depreciation. A repair that merely keeps existing property working can stay current, usually on line 14.
The most common mistake
The common mistake is choosing the line from the collateral instead of the lender and use of proceeds. A note secured by the rental can still fund personal spending, while an unsecured note can fund a rental repair.
Do not force a number onto the form because a category name sounds close. Keep the receipt description and facts, then use the line the 2025 instructions name. Line 19 is for valid other rental expenses, not a holding pen for mortgage principal, personal costs, land, or capital work.
A worked Part I example
A landlord pays $3,600 of interest to a seller under a carryback note and $12,000 of interest to a bank mortgage. Line 13 receives $3,600 and line 12 receives $12,000.
The example is a classification exercise, not a promise that the whole resulting loss is usable this year. IRS Publication 925 generally treats rental activity as passive. The active-participation special allowance can permit up to $25,000 of loss against nonpassive income, with the allowance phasing out as modified adjusted gross income moves from $100,000 to $150,000.
Personal use, recovery periods, and records
Interest may be currently deductible, capitalized during production, or allocated by debt use. Loan fees are amortized over the debt term and do not use the building's 27.5-year schedule.
Mixed use adds another limit. Under Publication 527, shared costs are divided between rental and personal use. If personal use exceeds the greater of 14 days or 10% of fair-rental days, the dwelling is treated as a home and rental deductions can be limited. The personal share does not move to another Schedule E line.
Keep the note, lender identity and tax information, payment schedule, year-end interest total, proof of proceeds use, and any required information-return records.
The full Schedule E walkthrough shows how the Part I lines assemble. The expense-by-expense deduction library handles the classification behind each receipt. rents.ai keeps the same per-property line order as expenses are logged and computes residential 27.5-year mid-month depreciation for line 18, with no bank login required.
This is general information for preparing 2025 records, not tax advice. Schedule E can feed Form 8582, Form 4562, Form 4684, or other forms depending on the facts. Give your CPA the source records and let them make the filing decisions for your return.