Real Estate Tax Calc
The cash method: how most landlords operate
Under the cash method of accounting, you report income when you receive it and deduct expenses when you pay them. For a rental property:
Rent received in January for the January lease payment → reported in January.
Repair bill paid in December → deducted in December.
Security deposit received → not income (you expect to return it).
The cash method is available to individuals regardless of gross rental income. It is simple, matches your cash flow, and allows you to accelerate deductions by prepaying expenses in December (subject to the 12-month prepayment rule: prepaid expenses covering no more than 12 months ahead are currently deductible).
Constructive receipt: the timing trap
The cash method doesn't let you defer income simply by refusing to deposit a check. Constructive receipt means income is taxable when it is made unqualifiedly available to you — even if you don't physically collect it.
If a tenant pays December rent on December 28 but you don't deposit the check until January, the income is constructively received in December and belongs on that year's return. You cannot shift income to next year by delaying deposit.
Practically: collect rent when it's due; don't hold uncashed checks at year-end to defer income. The IRS consistently wins constructive receipt cases involving year-end income deferral.
When the accrual method might apply or be elected
Individuals who hold rental properties through C corporations face accrual requirements if gross receipts exceed certain thresholds. Most individual landlords and pass-through entities (LLCs, S corps) can use the cash method.
A landlord might voluntarily choose the accrual method if they have complex lease arrangements — prepaid rent, percentage-rent clauses, or CAM reconciliations in commercial leases — where the accrual method better matches economic reality. Changing accounting methods requires IRS consent (Form 3115) and may trigger a Section 481(a) adjustment.
For the vast majority of individual rental investors, the cash method is correct, simpler, and available with no special election.
A worked example: the same year under both methods
Picture a landlord with one rental. In December, the tenant pays January rent early ($2,000), and the landlord receives a $1,500 property-tax bill due in January but writes the check December 30. The landlord also does a $900 repair in December but the vendor invoices in January and is paid in February.
Cash method. The $2,000 of advance rent is income this year (advance rent is always taxable when received). The $1,500 tax payment is deducted this year (paid in December). The $900 repair is deducted next year (paid in February). Result: +$2,000 income, −$1,500 deduction this year.
Accrual method. The $2,000 is income when earned — but note a key wrinkle: even accrual-basis taxpayers must report advance rent in the year received, so it is still this year's income. The $1,500 tax accrues to the period it covers (next year), so it is not deducted this year. The $900 repair is deducted this year because the liability was incurred and the work performed this year (economic performance under Section 461).
The two methods land on different taxable income for the year even though the economics are identical — which is exactly why the choice of method, once made on your first return for the activity, matters and cannot be switched casually.
How you adopt a method — and how you change it
You do not file a form to adopt the cash method; you establish it by using it consistently on the first tax return that includes the rental activity. That first filing locks in your method. From then on, switching between cash and accrual is a change in accounting method that requires IRS consent, filed on Form 3115.
A method change usually triggers a Section 481(a) adjustment — a catch-up calculation that prevents income from being double-counted or omitted in the transition. An adjustment that increases income is generally spread over four years; one that decreases income is taken entirely in the year of change. Many method changes qualify as 'automatic' changes with no user fee, but the Form 3115 filing is still required.
Using an impermissible method (or simply being inconsistent year to year) is itself treated as a method that must be corrected through Form 3115 — you cannot fix it by quietly reporting differently on the next return.
Which entities are barred from the cash method
The cash method is broadly available, but a few structures must use accrual. Under Section 448, C corporations and partnerships that have a C corporation partner generally must use accrual once their average annual gross receipts exceed the inflation-adjusted small-business threshold (about $30 million for 2025). A tax shelter — including certain 'syndicates' that allocate more than 35% of losses to limited partners or limited entrepreneurs — is barred from the cash method regardless of size, which occasionally snares heavily leveraged real estate partnerships.
Businesses that carry inventory once faced accrual pressure, but rental real estate has no inventory, so that constraint rarely bites landlords. For the typical individual owner, single-member LLC, family LLC taxed as a partnership without a C corporation partner, or S corporation holding rentals, the cash method remains available.
Year-end planning levers under the cash method
The cash method's great advantage is control over timing. Legitimate year-end moves include: prepaying deductible expenses (insurance, some repairs, association dues) within the 12-month rule to pull deductions into the current year; paying vendor invoices before December 31 rather than in January; and timing repairs so the work and payment fall in the year you want the deduction.
What you cannot do is defer income you have already earned and can access — that is the constructive-receipt trap. You also cannot deduct a mere accrual: writing a bill into your books without paying it produces no cash-method deduction. And 'prepaying' more than 12 months of a service (say, a 24-month policy) forces you to amortize the portion beyond 12 months rather than deduct it all now.
Coordinate these levers with your marginal rate. Accelerating deductions into a high-income year and deferring into a low-income year is the goal; blindly prepaying in a low-income year can waste deductions you would value more later.
Common mistakes landlords make with accounting method
Believing you can defer year-end rent by not depositing the check. Constructive receipt makes that income taxable when the check is available to you, not when you cash it.
Treating a security deposit as income (or advance rent as a deposit). A refundable deposit is not income when received; advance rent is income when received. The label in your lease and books must match the economics.
Switching methods without Form 3115. Any change between cash and accrual — or fixing an impermissible method — requires IRS consent and a Section 481(a) adjustment. You cannot just report differently next year.
Deducting unpaid bills under the cash method. A cash-basis landlord deducts expenses when paid. An invoice sitting unpaid at year-end is not yet deductible, no matter when it was incurred.
Book vs. tax: reconciling your accounting software to Schedule E
Many landlords keep their books in accounting software that defaults to accrual reporting — recording rent as billed and expenses as invoiced — while filing taxes on the cash method. That is perfectly legitimate, but it means your financial statements and your tax return will not match line for line. The gap is timing: unpaid invoices and uncollected rent sit on the accrual books but have not yet hit the cash-basis return.
The practical fix is a year-end bridge. Start from book (accrual) net income, subtract income accrued but not yet collected, add income collected but not yet earned (advance rent), add back expenses accrued but not yet paid, and subtract expenses prepaid within the 12-month rule. The result is your cash-method taxable income. For a partnership or S corporation, this reconciliation is formalized on Schedule M-1 (or M-3) of the entity return.
Keeping this bridge each year does double duty: it produces a clean, defensible tax figure and it gives you an accrual picture of the business for lenders and partners who want to see rent earned rather than merely collected.
Frequently asked questions
Do I have to use the accrual method for my rental properties?
Almost certainly not, if you own properties as an individual or through a pass-through entity. The cash method is available to most rental property owners regardless of gross income.
What is constructive receipt and why does it matter?
Constructive receipt means you must report income when it is available to you, even if you don't collect it. Holding an uncashed rent check at year-end doesn't defer the income to the next year.
Can I prepay expenses in December to get a current-year deduction?
Yes, under the cash method, you can prepay expenses covering up to 12 months ahead and deduct them currently. Prepayments covering more than 12 months ahead must be amortized over the applicable period.
How do I formally choose the cash method?
You don't file anything to adopt it — you establish the cash method by using it on the first tax return that includes the rental. That first filing sets your method, and changing it later requires IRS consent on Form 3115.
Is advance rent taxed differently under cash vs. accrual?
No — this is a notable exception. Advance rent is taxable in the year received under both methods. So collecting next year's January rent in December makes it this year's income whether you are on the cash or accrual method.
What is a Section 481(a) adjustment?
It is a one-time catch-up computed when you change accounting methods, ensuring no item of income or expense is duplicated or skipped in the transition. A positive (income-increasing) adjustment is generally spread over four years; a negative one is taken all at once in the year of change.
Sources
Educational information and estimates only. Not tax advice. Tax rules change and vary by situation; consult a qualified tax professional before acting.