Introduction
Real estate taxes don't belong on Schedule A, Line 5a. It's one of the most common slip-ups on Form 1040.
Line 5a is for state and local income taxes or general sales taxes. Qualifying real estate taxes go on Line 5b.
The error matters because Lines 5a to 5c feed into a combined cap. Misclassify one and your Schedule A totals shift. For U.S. taxpayers living in Australia, there's an extra trap: Australian council rates are not U.S. real estate taxes.
This guide covers which taxes qualify, how to report them, what records to keep, and whether itemising beats the standard deduction. Always confirm line labels against the form for your tax year.
Key Takeaways
- Line 5a covers state and local income or general sales taxes, never real estate taxes.
- Qualifying real estate taxes go on Line 5b and join the combined cap on Line 5e.
- Escrow deposits, HOA fees, transfer taxes and special assessments usually don't qualify.
- Foreign real estate taxes, including Australian council rates, don't go on Schedule A.
- Compare your full itemised total, not just property tax, with the standard deduction.
Schedule A Line 5a vs. Line 5b: Where Do Real Estate Taxes Go?
How the 2025 Lines Are Structured
Schedule A calculates itemised deductions for taxpayers who skip the standard deduction. Per the 2025 Schedule A, the tax lines work like this:
| Line | Purpose |
|---|---|
| 5a | State and local income taxes or general sales taxes, not both |
| 5b | State and local real estate taxes |
| 5c | State and local personal property taxes |
| 5d | Sum of Lines 5a to 5c |
| 5e | Allowed amount after the cap |
| 6 | Other taxes |
| 7 | Total taxes (5e plus 6) |
If you elect sales taxes, check the box on Line 5a. That election replaces income taxes only. Your real estate taxes still go on 5b.
The IRS has posted a 2026 draft of Schedule A. It's not for filing, so use the final form for the year you're reporting.
The SALT Cap
Lines 5a to 5c share one combined limit:
- 2025: $40,000 ($20,000 if married filing separately)
- 2026: $40,400 ($20,200 separately)
The limit phases down by 30% of modified adjusted gross income above $500,000 in 2025 ($250,000 separately). The floor is $10,000 ($5,000 separately). Under 26 U.S.C. § 164, the cap returns to $10,000 from 2030.
A Hypothetical Example
Say a single filer pays $6,000 in state income tax and $9,000 in real estate tax. Both belong on separate lines: $6,000 on 5a, $9,000 on 5b, $15,000 on 5d.
Now put the $9,000 on Line 5a as well. Line 5a becomes $15,000, Line 5b is empty, and the income-tax figure is overstated. Under an audit or software cross-check, the mismatch stands out. The total may look the same, but the return is wrong.
What Real Estate Taxes Qualify for Schedule A?
Taxes That Count
The 2025 Schedule A instructions say a qualifying tax is a state or local levy on real estate you own that isn't used for business. It must be assessed uniformly at a like rate, and the proceeds must fund general governmental purposes.
Charges That Look Like Taxes but Aren't
Your property tax bill often includes items that don't qualify:
- Special assessments for streets, sewers or water systems (these usually add to your basis, not your deduction)
- Rubbish collection, water use and similar service charges
- Penalties and interest
- HOA and condominium fees
- Transfer taxes, which generally adjust basis or selling costs
If an assessment includes an identifiable maintenance or interest portion, that part may qualify. Document the split.
Escrow, Closings and Shared Ownership
- Escrow: Deduct what your lender actually paid the taxing authority during the year, not what you deposited.
- Closing: The seller bears tax through the day before the sale; the buyer from the sale date. Publication 530 example: $730 annual tax, purchase on 1 September (122 days owned) → $244 deductible.
- Joint owners: You generally must be legally obligated and have actually paid. Housemates who each pay half may each deduct half.
- Married filing separately: Usually the spouse who paid deducts it. If one spouse itemises, the other can't take the standard deduction.
Rental and Business Property
Rental property taxes generally go on Schedule E. Taxes on business assets go on Schedule C, Line 23. Line 5b is for real estate you own and don't use for business.
Cautions for Australia-Based Filers
Do not enter Australian council rates, land tax or other foreign property charges on Line 5b. Foreign real estate taxes are neither deductible on Schedule A nor creditable under Publication 514.
Foreign income taxes are different: they may be deducted on Line 6 or credited on Form 1116, but not both. Taxes tied to income excluded under the foreign earned income exclusion can't support either.
How to Complete Schedule A for Real Estate Taxes
Australian residence alone doesn't remove a U.S. citizen's filing obligation. Citizens and resident aliens abroad must still report worldwide income on a U.S. return. Some nonresident aliens file different forms, so confirm your status before you start.
- Get the right form. Use the Schedule A and instructions for your tax year, and confirm you're eligible to itemise.
- Gather records. Collect property tax bills, proof of payment, lender escrow disbursement statements, closing statements, ownership records and any reimbursement or allocation workings.
- Fill in Line 5b. Enter only qualifying real estate tax. Prorate for partial-year ownership, split for co-owners, and use the closing statement for settlement allocations.
- Complete Lines 5a and 5c. Enter income or sales tax and any qualifying personal property tax. Personal property tax must be based on value alone and imposed annually.
- Total and cap. Add on 5d, then apply the cap on 5e. The 2025 worksheet is required if your Form 1040 Line 11b exceeds $500,000 ($250,000 if married filing separately), or if Form 2555 or Form 4563 applies. It includes foreign-income add-backs.
- Carry it through. Add Line 6 so the taxes subtotal appears on Line 7. Line 17 then totals all itemised deductions and flows to Form 1040 Line 12e.
- Compare. Weigh the total against your standard deduction.
Line numbers shift between years, so recheck each reference against your form.
Filing Timing From Australia
If you live and work outside the U.S. on the regular due date, you get an automatic two-month extension, ordinarily to 15 June. According to the IRS, the overseas extension covers filing and payment, but interest still accrues from the original due date. Attach a statement explaining your circumstances.
Common Mistakes and Documentation Rules
Frequent errors include:
- Entering real estate taxes on Line 5a instead of Line 5b
- Claiming both state income tax and sales tax
- Forgetting the Line 5a box when electing sales tax
- Using an outdated SALT cap
- Deducting unspent escrow deposits
- Treating HOA dues, special assessments or transfer taxes as property tax
- Double-counting amounts already claimed on Schedule E or C
- Deducting taxes someone else paid
- Deducting a prepayment of next year’s tax unless it was both paid and assessed in the current year
What to Keep
- Tax bills and receipts or cancelled cheques
- Lender escrow disbursement statements
- Settlement statements and ownership records
- Your allocation calculations
Generally keep records for three years from filing, longer in some cases. Keep property-basis records until the limitations period expires for the year you dispose of the property.
Should You Itemise Real Estate Taxes on Schedule A?
Real estate tax is one itemised category among many. Compare your total allowable Schedule A deductions with the standard deduction. You can't claim both.
| Filing status | 2025 base | 2026 base |
|---|---|---|
| Single | $15,750 | $16,100 |
| Married filing jointly | $31,500 | $32,200 |
| Married filing separately | $15,750 | $16,100 |
| Head of household | $23,625 | $24,150 |
Taxpayers 65 or older or blind get an additional standard deduction. For 2025 it's $2,000 per condition for single or head of household filers and $1,600 for married filers.
Separately, an enhanced senior deduction of up to $6,000 per person applies for 2025 to 2028. You claim it on Schedule 1-A whether you itemise or not. It phases down above $75,000 of MAGI ($150,000 jointly).
Itemising demands more paperwork. Complexity rises with:
- Multiple properties
- Foreign assets
- Rental activity
- A move between countries
- Separate-return issues
For a complex return involving Australian residency, foreign property or jointly owned property, get a professional review. VJM Global's tax team prepares Form 1040 and federal and state filings for international clients, following IRS protocols for accurate, on-time submissions.
Frequently Asked Questions
What are the instructions for completing Schedule A?
Use the current IRS Schedule A and its official instructions. The form covers medical expenses, taxes, interest, gifts and other deductions. Keep supporting records for every entry.
What is included in Schedule A line 5a?
Line 5a covers state and local income taxes or general sales taxes, not both. Real estate taxes go on Line 5b. Verify labels on the form for your tax year.
What is line 16 on Schedule A?
On the 2025 form, Line 16 is "other itemized deductions," such as gambling losses up to winnings. Real estate taxes stay on 5b. The 2026 draft moves this to Line 17.
What is the standard deduction for seniors?
Eligible taxpayers get an additional standard deduction based on age, filing status and tax year. A separate enhanced senior deduction may also apply. Check current IRS guidance for amounts.
Where do I find Schedule A and other lines on my 1040?
Download them from the IRS Forms and Instructions page. Schedule A attaches to Form 1040 when you itemise. Tax software also guides you to each line.
