>Your Cost Basis>

The following information was copied from the following website. The article details the types of items that can be used to determine the "cost –basis" of your home.


Our managing agent has now started to supply the information mentioned under Indirect Expenses below. This is a re-print of the info however; please consult your accountant before using any of this information.


For many people, the largest single investment they own is their personal residence. 

You need to keep up-to-date records on your cost basis for your personal residence for many reasons:

  • to compute the gain or loss upon sale
  • to file insurance claims 
  • to claim a casualty loss on your tax return in the event of a natural disaster or fire

You are allowed to deduct losses from floods, tornadoes, hurricanes, etc. that are not covered by insurance, provided that you file an insurance claim.  However, your loss is limited to the lesser of your property's tax basis or its decline in value, less any insurance proceeds.    You need to know your cost basis in order to make this calculation.  The casualty loss is claimed on Form 4684 and Schedule A.

Computing the cost basis for your personal residence involves seven factors:

  • Purchase price
  • Additional acquisition costs
  • Direct improvements
  • Indirect improvements
  • Depreciation
  • Deferred gains
  • Recoveries and credits

1.  Purchase Price.   The actual sales price listed on the real estate sales contract when you bought your home is your initial starting point in computing your cost basis.  If the home was a gift to you, you receive a carryover basis from the donor.  If you inherited the home, your cost basis is the market value at the date of death or alternate valuation date.

2.  Additional Acquisition Costs.  Your cost basis is increased by the costs you incurred directly related to purchasing the home, such as attorney fees, title insurance, stamp taxes, transfer fees, recording fees, surveys, home inspection expense, etc.  Many of these costs can be located on the closing statement which you received at the settlement conference.  Note that real estate taxes and property insurance are NOT considered additional acquisition costs. 

3.  Direct Improvements.   Any expenditures which improve your personal residence and are permanently attached are increases in your cost basis.  Keep a file or box where you store all receipts for items in this category.  Besides the obvious such as adding a new room, you can also include items such as:

Air conditioners
Alarm systems
Bookcases, built-in
Ceilings, acoustical
Clothes washers & dryers
Counter tops
Curtains & draperies left with home
Dishwasher, built-in
Drapery rods & cornices
Electrical outlets
Fireplaces and built in screens
Flooring, wood, tile
Freezers left with home
Garage doors and openers
Garbage disposal
Hardware-fixtures & locks
Hot water heater
Landscape improvements
Shutters, shades, and blinds
Sliding glass doors
Underground sprinklers
Wall coverings left with home
Washers and dryers
Weather stripping

Recurring items such as painting are considered repairs and maintenance, not additions to your
cost basis.

4.  Indirect Improvements.  For owners of condominiums, many improvements are made indirectly and paid for through condo dues, either regular monthly or special assessments.   Be sure to keep the annual audit report or financial statements for every year you own a condo because it contains valuable information about permanent improvements paid via condo dues.   Some condo management companies will even provide an annual listing to all unit owners of the improvement expenditures and the share allocable to your unit based on your percentage ownership of the building.  Typical improvements in this category would include:  roof replacement, boiler, air conditioning compressor, furnace, common area carpet and fixtures, tuckpointing, fire sprinklers, insulation, new piping, landscape enhancements, etc.

5.  Depreciation.  If you claim depreciation expense at any time while you own your home, the amount of depreciation is a reduction in your cost basis.   For instance, if you have a home office or if you rent out your home for a period of time, you can claim depreciation.

6.  Deferred Gains.   You may have previously owned another home where you did not pay any capital gain tax when you sold it because you rolled the gain over to your next home.  In this case, the capital gain that was deferred under tax law by rollover is an adjustment (decrease) in your cost basis for the second home.  Current tax law allows an exclusion (not a rollover) of up to $500,000 in gains for a married couple ($250,000 for singles) who meet ownership and use tests.  However, previously an unlimited amount of gain could be deferred as long as your next house cost more than the previous one.  Deferred gains may also result from involuntary conversions such as fire loss insurance proceeds or public use condemnation awards.

You need to keep a copy of your tax return in the year of sale to document the rollover amount.   You also need to keep documentation of all the items that went into the determination of your cost basis for the previous home--closing statements, receipts for improvements, etc.--until you sell your final home and don't rollover the gain anymore.   For most people, this means basically forever.   It is strongly recommended that you make a xerox copy of all thermal print receipts because the print will fade with time and you won't be able to read it by the time you need it.

7.  Recoveries and credits.  Your cost basis is decreased by recoveries and credits such as the following:

  • any insurance proceeds or other reimbursements
  • any deductible loss you claim for damages to your home
  • tax credits and subsidies for energy efficiency improvements
  • tax credits and subsidies for alternative energy equipment (e.g. solar, fuel cell)
  • adoption tax credits that were claimed with respect to improvements to a home
  • First-Time Home Buyer credit adjustments 
  • the amount of qualified principal residence interest that is excluded from income under the Mortgage Relief Act of 2007 (but basis is not reduced below zero.) cancellation of indebtedness income adjustments

These are just the highlights in the vast subject area of cost basis for personal residences.  Many other topics, such as options granted, construction costs of a new home, partial exclusion of gain, business use of a portion of the home, etc. have not been addressed.  This page is a starting point for you to understand some of the issues involved.   See IRS Publication 523 for further information about the cost basis of your home and gain on sale.