Impound Account vs. Non-Impound Account

When purchasing a house, inquire with your lender about the possibility of opting for a non-impound account. This type of account lets you time property tax payments yourself, which is what makes bunching them into a single itemizing year possible.

Impound Account (Escrow Account)

An impound account, also known as an escrow account, is a trust account set up by your mortgage lender to pay property-related expenses such as property taxes and homeowners insurance. Each month, a portion of your mortgage payment is deposited into this account. When these bills are due, the lender pays them on your behalf. This setup ensures that these expenses are paid on time and can simplify budgeting for homeowners.

Non-Impound Account

In contrast, a non-impound account means you are responsible for paying your property taxes and insurance premiums directly. This option offers more control over your cash flow, as you can decide when to pay these expenses within the due dates. Requires disciplined budgeting to ensure timely payments. Risk of penalties if taxes or insurance are not paid on time.

The reason to care is the SALT cap. The TCJA of 2017 capped the state and local tax deduction — property taxes, state income taxes, local taxes — at $10,000; OBBBA (Sec. 70120) raised it to $40,400 for 2026, growing 1% a year through 2029 before reverting to $10,000 ( IRC §164(b)(7)). For most readers of this book the raise is a mirage, because the cap phases down 30 cents per dollar of MAGI above $505,000 and hits its $10,000 floor by roughly $606,300 of MAGI (section “Tax Deductions of The Mortgage Interest”). The limitation bites hardest when property taxes alone clear the cap — routine in California, New York, and New Jersey on any meaningful home. For further details, refer to IRS Pub. 530, “Tax Information for Homeowners” and IRC §164. Separately, IRC §263A requires property developers and businesses to capitalize property taxes into basis instead of deducting them currently.

The bunching play, and the trap inside it. A non-impound account lets you choose when the payment lands, and real property tax is deductible in the year paid — so in principle you can push two years of tax into one, clear the standard deduction with the itemizing year, and take the standard deduction in the off year. Two hard rules govern this:

The tax must already be assessed

You cannot deduct a prepayment of a tax that has not yet been assessed and billed. The IRS said so bluntly in IR-2017-210, when taxpayers rushed to prepay 2018 taxes in December 2017 ahead of the new cap: an estimated payment against a future assessment buys you nothing. Timing an already-billed installment is legitimate; prepaying a bill that does not exist is not.

The cap truncates the benefit anyway

Bunching only creates value on the dollars beneath the cap. If your MAGI has already crushed the cap to $10,000 and your state income tax alone exceeds it, the property tax is worth precisely zero federally no matter which year you pay it in, and the entire exercise is bookkeeping.

California’s billing calendar makes the mechanics unusually clean, because the fiscal year runs July to June, both installments are assessed on the October bill, and they fall due November 1 and February 1 (delinquent December 10 and April 10). A homeowner can pay both installments in December, or defer the previous February installment into January and land three installments in one calendar year, every one of them assessed before it was paid — which is what keeps the play inside IR-2017-210. Now apply the second rule before admiring the first. A household that owns a $3M Tier-1 California property owes far more than $10,000 of California income tax on its own, so its SALT deduction sits at the cap in every year, bunched or not, and the $36,000 property-tax bill is worth zero federally in either calendar. For the reader this book is mostly written for, the play is dead. Where it lives is a no-income-tax state — Texas, Florida, Washington — for a household with MAGI under $505,000: two $20,000 property-tax bills stacked into one year fill the $40,400 cap, mortgage interest on top clears the $32,200 married standard deduction by a wide margin, and the off year takes the standard deduction with nothing lost.

Choosing between an impound and non-impound account therefore comes down to whether you will actually manage the calendar. The lender’s escrow account exists because most borrowers will not, and a missed installment costs a 10% penalty in California — far more than the deduction is worth. Take the non-impound option if you are deliberate about cash flow and the bunching math clears; otherwise let the servicer do it.