Checking property-tax assumptions in a lender estimate
Understand how property taxes impact your monthly mortgage payment and learn why it is critical to verify tax assumptions in your Loan Estimate.
The short answer
Property taxes are determined by government authorities and represent a recurring expense often bundled into your monthly mortgage payment. Because lenders use estimates for these costs, you must verify that the tax amount in your Loan Estimate accurately reflects local assessments to avoid payment shocks after closing.
Understanding Tax Escrow
Many lenders use an escrow account to collect property taxes monthly. This ensures funds are available when the local government demands payment.
However, if your taxes are not escrowed, you remain responsible for paying these large lump sums directly. You must clarify if your loan terms mandate an escrow account.
Worksheet Example: Note whether your Loan Estimate has a checkmark indicating that taxes will be paid from an escrow account.
Reviewing Estimated Tax Figures
Lenders estimate tax amounts based on current knowledge, but these figures are not set by the bank. If the estimate appears significantly low, your monthly payment will likely increase later.
Ask your lender how they arrived at the tax estimate. Is it based on a recent assessment or an older property record?
Planning Example: Ask your professional: 'Is this tax estimate based on the current property tax bill or a potential reassessment after my purchase?'
Addressing Tax Changes
After purchasing, your local government may reassess the property based on the new sale price. This can result in higher taxes than the previous owner paid.
Being prepared for a potential tax increase is essential for your long-term budgeting, as this cost will be passed through to your monthly payment.
Planning Example: Ask your professional: 'What is the standard process for local tax reassessment in this municipality following a home sale?'
Checklist
- Confirm if property taxes are included in your monthly escrow.
- Check if the tax estimate matches recent public records for the property.
- Ask the lender about their methodology for estimating tax liabilities.
- Confirm whether you must pay any property taxes upfront at closing.
- Verify if the tax estimate accounts for a potential post-sale reassessment.
Common questions
Can I challenge the property tax estimate provided by the lender?
The lender is using an estimate based on available information; you should verify this against local tax authority data and ask the lender to explain their figures.
What happens if the lender underestimates my taxes?
If your escrow account does not collect enough money to pay the actual tax bill, your lender will typically require you to make up the difference.
Sources
- CFPB — Buying a houseChecked October 12, 2026
- CFPB — Loan Estimate explainerChecked October 12, 2026
This guide is general educational content from SQFT IO, prepared with AI assistance. It is not legal, tax or loan advice. Talk with a licensed attorney, tax professional or lender about your situation. SQFT IO Illinois license 478.027617.