The four components of a mortgage payment
Every mortgage payment with escrow contains four parts, commonly called PITI: principal, interest, taxes, and insurance. The IRS does not have a single line for "mortgage payment" on Schedule E. Each component goes somewhere different, and one component (principal) does not go on Schedule E at all.
Using a $120,000 loan at 7.5% interest with property taxes of $1,800/year and insurance of $1,440/year, the total monthly PITI payment is $1,352. Here is how that breaks down.
| Component | First Month | Schedule E Line | Deductible? |
|---|---|---|---|
| Principal | $89 | None | No (reduces loan balance, not an expense) |
| Interest | $750 | Line 12 | Yes |
| Property tax escrow | $150 | Line 16 | Yes (actual disbursement amount) |
| Insurance escrow | $120 | Line 9 | Yes (actual disbursement amount) |
| Total PITI | $1,109 |
P&I (principal and interest) is $839 per month. PITI (principal, interest, taxes, and insurance) is $1,109 per month. Your amortization schedule shows P&I only. Your mortgage statement shows PITI. Confusing the two means misreporting expenses on every line.
Month by month: how the P&I split changes
On a fixed-rate mortgage, the total P&I payment stays the same every month. But the split between principal and interest shifts over time. Early in the loan, most of the payment is interest. By the end, most is principal. This matters because only interest is deductible.
Here is the amortization for a $120,000 loan at 7.5% over 30 years. The fixed monthly P&I payment is $839.06.
| Month | Payment (P&I) | Principal | Interest | Remaining Balance |
|---|---|---|---|---|
| Month 1 | $839.06 | $89.06 | $750.00 | $119,910.94 |
| Month 2 | $839.06 | $89.62 | $749.44 | $119,821.32 |
| Month 3 | $839.06 | $90.18 | $748.88 | $119,731.14 |
| Month 6 | $839.06 | $91.87 | $747.19 | $119,457.84 |
| Month 12 | $839.06 | $95.38 | $743.68 | $118,904.70 |
| Year 1 Total | $10,068.72 | $1,095.30 | $8,973.42 |
In year one, 89% of the P&I payment goes to interest ($8,973) and only 11% goes to principal ($1,095). By year 15, the split is closer to 60/40. By year 25, it flips to roughly 30% interest and 70% principal. Your deductible amount shrinks every year as the loan matures.
Form 1098, Box 1 from your servicer shows total interest paid for the year. This should closely match your amortization schedule total. If you closed mid-year, the 1098 covers only the months you made payments. Your amortization schedule (available from your servicer's online portal or any loan calculator) shows the month-by-month breakdown.
Where each component goes on Schedule E
Each part of your mortgage payment maps to a specific Schedule E line. Here is the complete mapping with explanations.
| Component | Schedule E Line | Annual Amount (Year 1) | Source Document |
|---|---|---|---|
| Mortgage interest | Line 12 (Mortgage interest paid) | $8,973 | Form 1098, Box 1 |
| Property taxes | Line 16 (Taxes) | $1,800 | Escrow analysis or county tax receipt |
| Hazard insurance | Line 9 (Insurance) | $1,440 | Escrow analysis or insurance declaration |
| PMI (if applicable) | Line 9 (Insurance) | Varies | Form 1098, Box 5 or servicer statement |
| Principal | Not reported | $1,095 | N/A (not deductible) |
Why principal is not deductible. When you pay principal, you are converting cash into equity. Your loan balance decreases by the same amount. The IRS treats this as an asset exchange: you traded cash for a reduction in debt. No expense occurred, so there is nothing to deduct.
Escrow vs. actual disbursements
Your servicer collects monthly escrow payments for property taxes and insurance. But Schedule E wants the actual amounts paid to the county and the insurance company, not what you put into escrow each month.
These numbers are often different. Your escrow account may carry a surplus from the prior year, or the servicer may have adjusted your monthly escrow amount after an escrow analysis. The annual escrow analysis statement (mailed once per year) shows exactly what was disbursed and to whom.
Example: escrow surplus
You pay $150/month into escrow for property taxes ($1,800/year). But your escrow account started the year with a $200 surplus. The county tax bill was $1,850 (a $50 increase). Your servicer disbursed $1,850 to the county. For Schedule E Line 16, you report $1,850 (the actual disbursement), not $1,800 (12 times your monthly payment).
Example: escrow shortage
Your insurance premium increased from $1,440 to $1,560. Your servicer still collected $120/month ($1,440 for the year) but disbursed $1,560 to the insurance company, drawing down the escrow balance. For Schedule E Line 9, you report $1,560, not $1,440.
Your servicer sends a copy of Form 1098 to the IRS. If the interest you report on Line 12 does not match what the IRS has on file, you will get a notice. Always use the exact Form 1098 Box 1 amount. If you believe the 1098 is incorrect, contact your servicer for a corrected form before filing.
Five common mistakes that cost landlords money
Multiple mortgages on one property
Properties with a first mortgage, a second mortgage, or a HELOC require combining interest from all loans on Schedule E Line 12. Each lender sends its own Form 1098. Add the Box 1 amounts together for that property's column.
First and second mortgage
If the first mortgage at 7.5% generated $8,973 in interest and the second mortgage at 9% generated $2,700 in interest, enter $11,673 on Line 12. Keep both 1098s in your records to support the combined number.
HELOC used for the rental property
Interest on a HELOC is deductible on Schedule E Line 12 only if the HELOC funds were used for the rental property (purchase, improvement, or repair). If you used the HELOC for personal expenses, the interest is not deductible on Schedule E. If the HELOC was split between rental and personal use, you must allocate interest proportionally based on how the funds were used.
Refinancing mid-year
When you refinance, you receive two 1098s for the year: one from the old servicer (January through the payoff date) and one from the new servicer (the refinance date through December). Add both interest amounts for Line 12. Points paid on the refinance are amortized over the life of the new loan, not deducted in full in the year paid. Prepaid interest from the closing goes on Line 12 for the year it was paid.
How DoorVault handles mortgage splitting automatically
DoorVault auto-splits every mortgage payment into principal, interest, tax escrow, and insurance escrow the moment your mortgage statement is uploaded or your payment is recorded.