How to make a claim for adjustment in MyTax

You can make a claim for adjustment only after your tax assessment has been completed. The date is shown on your tax decision.

Log in to MyTax (opens in a new window)

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    Select the Activities tab.

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    Click All adjustment matters in the Claims for adjustment section.

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    Click the link of the claim for adjustment that matches your situation.

    • Claim for adjustment of tax decision on pre-completed tax return, agriculture, forestry or business activity: Click the link Claim for adjustment, individual income tax, as of 2018.
    • Claim for adjustment of tax decision on value added tax or other self-assessed tax, real estate tax, transfer tax, registration or corporate income tax: Click the link Claim for adjustment to the Assessment Adjustment Board.

    Open the appropriate instructions below and proceed as instructed.

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    Go to the appropriate year and click Select.

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    Select Make a claim for adjustment next to the tax return you seek to adjust – for example, Individual income tax details.

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    Stage Background:

    • Indicate the matter or matters you seek to adjust − for example, Travel expenses. In the next stages, you can add, change or remove details on the income and deductions you seek to adjust.
    • Select Yes if you also want to request an injunction or interruption of enforcement.
    • Select or fill in the contact information of a person who can provide further information.
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    Stage Pre-completed income and deductions:

    • Check the information and make corrections, if necessary: Delete the information you want to edit. Enter the correct details.
    • Give grounds for the changes you made. Add attachments to clarify the matter, if necessary.
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    Stage Other income:

    • To add missing details on your income, go to the appropriate line and select Yes. A new window opens. Enter the details that you had not given previously.
    • At the end of the page, give grounds for the additions you made. Add attachments to clarify the matter, if necessary.
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    Stage Other deductions:

    • Go to the line you seek to adjust and select Yes. A new window opens. Enter the details that you had not given previously. For example, if you want to file new travel expenses, select Add new travel expense. A new window opens. Enter the details and click OK.
    • At the end of the page, give grounds for the additions you made. Add attachments to clarify the matter, if necessary.
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    Stage Preview and send:

    • Check that the information is correct. You can make corrections by clicking Previous.
    • Once all the details are correct, click Submit. You will then receive an acknowledgement of receipt.
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    Stage Decisions:

    • First answer Yes to the question Are you sure you want to file a claim for adjustment to the Assessment Adjustment Board?
    • Then select the decision that you seek to adjust. You can also select multiple decisions. If there are a lot of decisions, you can filter them by decision date or tax type, for example.
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    Stage Claims and grounds:

    • If requested, select the subject of the claim for adjustment.
    • Enter your claims and their grounds in the appropriate text fields. Add attachments to clarify the matter, if necessary.
    • Select Yes if you also want to request an injunction or interruption of enforcement. (This item is shown only if it can be selected.)
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    Stage Contact information:

    • Select or enter the contact information of a person who can provide further information.
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    Stage Preview and send:

    • Check that the information is correct. Click Edit or Previous to make corrections.
    • Once all the details are correct, click Submit. You will then receive an acknowledgement of receipt.

Was your claim for adjustment successfully received?

You can check in MyTax the status of the claim for adjustment you submitted.

How to find saved and submitted returns, requests and applications in MyTax

How long does it take to process a claim for adjustment?

You can check the estimated processing times of claims for adjustment on the page Processing times for returns and applications.

Is it possible to cancel a claim for adjustment?

You can cancel a claim for adjustment you have made, either partly or fully. You can also request an injunction regarding a claim for adjustment you have submitted.

If you want to cancel your claim for adjustment, select the Activities tab in MyTax. Go to Claims for adjustment and click Cancel a claim for adjustment.

Page last updated 10/31/2022