o

Adding, Changing, or Removing Standard Exemptions

Last Revised: June 27, 2023

The Account Master Summary screen is used to add or remove standard exemptions, such as Homestead, Over 65, Veteran, Disabled, and Exempt.   

To do this.. Use this screen..
Adding, Changing, or Removing Standard Exemptions Account Master Summary
Adding, Changing, or Removing Special Exemptions Special Exemption
Setting Deferral Dates Owner Detail
Adding and Removing Total Exemptions Account Master Summary
Setting the HB 336 Exemption Property Value Detail
Adding Partial Exemptions Owner Detail

 

If an account has been written off  you will get a warning message if you try to make a levy change on the Account Master screen.

The Save and Calculate button on the Account Master Summary screen apportions the exemption values according to the values of the individual tax units.   Local option percentage exemptions are calculated by multiplying the percentage times the unit's apported value.  State mandated and other fixed value exemptions are calculated by multiplying the percentage of the unit's value times the full exemption amount (the actual calculation divides the apported value by the full 100% value, then multiplies this amount times the flat exemption amount).  This is important for those offices servicing jurisdictions that are not located 100% within the county.  Apported values and percentages can be seen on the Account Master Jurisdiction screen.

If an account had any partially paid rendition penalty prior to running batch menu no. 10993, Convert Rendition Penalty to Individual Units, and a change needs to be made on Account Master that affects levy, a popup message will appear asking that you contact ACT for assistance.

Note: ACT is implementing code changes to link levy changes to the exemptions listed in the Tax Unit Maintenance Exemptions screen. Make sure the correct exemptions for each unit are listed in this screen.

  1. From the Main Menu, click the Account Master () button or select Inquiry, then Account Master, or click the Go To drop-down list and select Account Master.  The Account Master Summary screen will appear.
  2. If the account has carried over from a previous screen, the screen will fill with data.  

    If the Account Number field is blank, enter the account number, press F8, then go to the next section.

    If you need to enter a different account number, press F7, key in the new account number, press F8, then go to the next section.

Note: If you don't know your account number, see Locating an Account.


  1. Click Prior Year(s).  
  2. Using the drop-down list, select the year to view.  The list contains only those years that have been archived. If you want to see another year, key in that year in the year field.
  3. Click OK. The Account Master Summary screen will display.

WARNING: If you want to view data for a paid account in a prior year and your tax office has had its paid account data loaded into ACT's archive tables, the property values and jurisdictions for the rebuilt year will be inserted. Please check them for accuracy. Enter any exemptions into either the Account Master Summary or Special Exemptions tabs.  Remember to return to the Account Master Summary screen and press F10 (Save).

For unpaid prior year accounts and paid accounts that haven't been put into the archive tables, zeroes will show in the value fields for the year you rebuild if the client preference POPULATE_EQUAL_VALUES is set to N.  If the preference is set to Y, the property values will be populated with data from the Receivable and Property Value screens.   If no values exist for that year in those screens, $0.00 values will be inserted. Please check the values for accuracy.  Remember to enter any exemptions, then press F10 (Save).  

A receivable is not created unless it existed in the archive tables or in the regular production tables before doing this Prior Year rebuild.


  1. To add a Homestead, Over 65, Disabled, and/or Exempt this owner exemption, enter either a "Y' or an 'X' in the appropriate box:
  1. To add or change a veteran or a 100% disabled veteran exemption, click the Veteran Exemption Details button.
  2. In the Veteran Exemption Details popup window, select one of the following options for 100% veteran exemptions: 100% disable veteran (VTX), 100% Surviving Spouse (STX), both 100% veteran and 100% surviving spouse, surviving spouse active duty (MSS), both MSS and VTX, both MSS and STX, or FRSS (first responders surviving spouse). You may need to enter a Start Date and an End Date for prorated these exemptions. If the start date is after January 1 of the tax year, you must enter that date in the appropriate Start Date field (VTX, STX or MSS start dates). These exemptions are calculated against homesite value only. If a 100% surviving spouse veteran or active duty exemption exists on an account, the exemption row will be highlighted in orange.

Technical notes: These 100% veteran codes are put in the database: X for 100% disable veteran (VTX), S for 100% Surviving Spouse (STX), or B for both 100% veteran and 100% surviving spouse, M - surviving spouse active duty (MSS), C - both MSS and VTX, D - both MSS and STX, or F - FRSS.

  1. In the Veteran Exemption Details popup window, select the amount of the exemption. Veteran exemptions are applied to homesite values first, then to ag and/or non-qualifying values. The amounts and percentages are as follows:
  1. For surviving spouse veteran exemptions, click the Surv. Vet drop-down list in the Veteran Exemption Details popup window and select the appropriate amount. These amounts are the same as for regular veteran exemption (see the step above).
  1. To remove an exemption, blank out the Y, X, S, or F  For 100% disabled veteran or surviving spouse active duty exemptions, click the Veteran Exemption Details button and select the None option. For veteran or surviving spouse veteran exemptions, click theVeteran Exemption Details button and select None from the appropriate drop-down list.
  2. Click Save and Calculate Levy.

Warning! If the Homestead, Over 65 or Disabled fields have an X instead of a Y, you must check the Exemption Amount and the Code Type in the Special Exemptions tab.  The Code Type must be U if the X is also present. You will receive a warning message about this.

  1. Click OK to the confirmation message.

Notes:  The system will recalculate the levy based on the standard exemption changes.  

Repeat the steps above for each year that is affected by the addition, change, or removal of a standard exemption.

The system will not allow the exemption value to be more than the taxable value before the exemption was added.

If discounts have been applied to an account that receives an adjustment, the discount amount is adjusted accordingly.  The discount is calculated from the base levy.

The Veteran Exemptions field will display the exemptions chosen in the Veteran Exemption Details popup window.

For county code 101 (Harris County), the allocation factor defaults to 100% when manually entering an exemption.

  1. If any IRE (pro-rated homestead) exemptions were created, the Special Exemptions screen will display a Details button. Click on that to view the Exemption Details popup, which shows the exemption amounts, start and end date, and allocation factors for each unit on the account. Begin and End Dates for the IRE exemptions can be added or changed by clicking the Add or Change buttons, making the desired changes, then clicking Update on a second popup, then clicking Save and Exit.
  2. Return to the Account Status screen to verify that the levy has changed as expected and that the correct exemptions are displayed in the HOVDFAER fields.

Notes:  If an exemption change results in an increased levy on a paid account, the delinquency date will change automatically.

If a refund is generated for some jurisdictions as a result of adding an exemption and levy is still due on other jurisdictions, the refund amount will be used to pay off those levies.

Notes about calculations:

The mandatory homestead exemption for a school district is $15,000.  The mandatory O65 or DRH exemption for a school district is an additional $10,000.

All tax units may offer a local option homestead percentage, which is calculated against the appraised homestead value of the property. The local option homestead exemption value is $5,000 or 20% of the appraised homestead value, whichever is greater.

If the Resolve Fixed Local Option setting for any unit having that county code is checked in the Jurisdiction CAD Relation tab of the Tax Unit Maintenance screens, then for units having less than 100%, then the local option exemption calculation will also consider the Exempt % when calculating the minimum exemption amount.

The calculation in this case is as follows:

(1) value x local option % = calculated local option amount.

(2) full minimum exemption amount (usually $5000 or $3000) x the exempt % = minimum local option exemption amount.

(3) Compare these two calculated values (calculated local option amount and minimum local option exemption amount) and take the greater of the two values. This becomes the local option exemption amount.

If the Resolve Fixed Local Option setting is not checked, the exempt % is not considered when calculating the minimum local option amount.

State-mandated exemptions are not affected by the Resolve Fixed Local Option setting and always consider the Exempt %.

For Software Group files, the value given is already the apported appraised homestead value, not the 100% value.

All units may also offer a local option O65 or DRH exemption. The value for this is $3,000 or 20% of the appraised homestead value, whichever is greater.

If there is a local homestead option on a school district, the homestead exemption is the sum of the local homestead option calculated amount and the mandated amount.

A mandatory homestead exemption for certain other units (e.g., Road & Bridge, Farm to Market, Flood Control)) is $3,000.  For these units, if an O65 or DRH local option exemption is added to a homestead, then the local option applies, but the mandated state homestead value does not.

Remaining units do not have to have mandatory exemption amounts. They normally do not have both mandated and local option exemptions.

The following order is used when calculating multiple exemptions on the same account: XMP, CAP,  PRG, HOM, O65 (all varieties), DRH, VTX, VET, all others (including OSP and TIM), PRO.  For the Harris County Tax Office only, capped exclusion amounts are applied to accounts after the homestead, over 65 and disabled exemptions have been deducted from the appraised value. Capped exclusions for Harris County can also be applied to non-qualifying amounts. For other tax offices, capped exemptions can be applied only to homesite values.  For Fort Bend County, exemptions are calculated in the order in which they are listed in a database table.

Veteran and surviving spouse veteran exemptions must be applied to homesite values first, then to agricultural and non-qualifying values. VTX exemptions are for 100% of the homesite value for disabled or surviving spouse of disabled persons. If an account has both VET and VTX (100% disabled) exemptions and both homesite and non-homesite value, the VTX should go against the homesite portion and the VET against the non-homesite values. MSS exemptions are for 100% of the homesite value for surviving spouses of active duty military.

LDS exemptions occur on split accounts. The LDS portion is the local option only for disabled persons. These accounts will not have an HOM exemption because that exemption is on the other 'split' account.  True Automation loads have a flag to indicate a frozen account (which need a qualifying exemption). At this time, True Automation is the only appraisal district to include LDS exemptions.