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What is a pro forma notice of appeal?

Pro forma notice of appeal: lodge an appeal before the time limit expires, grounds for appeal follow later. Requirements, example, and when to use.

Published on July 9, 2026 by MKBjuristen.nl
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A pro forma notice of appeal is a notice of appeal filed in a timely manner to meet the deadline, but without full grounds yet. The grounds are provided later — typically 4–12 weeks after the pro forma. This is practical in tight situations where legal arguments still need to be developed. It is frequently used in tax law and administrative law. Requirements are limited — it is a formal step to preserve the deadline. Below are when to use it, its format, and potential pitfalls.

The short answer

  • What: notice of appeal with minimal content to meet the deadline.
  • When: the deadline threatens to expire before the full justification is ready.
  • Reasoning to follow: within the further period set by the judge/inspector.
  • Required content: identification of the contested decision, statement of appeal; grounds to follow later.
  • Frequently used: objection to the Tax and Customs Administration, appeal to the administrative court.

When do you use it?

Submit appeal in a timely manner
  • Time short: deadline of 6 weeks before full completion.
  • Incomplete info: still awaiting documents from the Tax and Customs Administration for assessment.
  • Second opinion: a second lawyer or accountant still needs to assess.
  • Strategic: preserve the deadline while negotiations are ongoing.

Required content

Monitoring deadlines for pro forma

Minimum requirements for a valid pro forma:

  • Name and address of professional maker.
  • Reference to the contested decision (date, number, designation).
  • Declaration that an appeal is lodged.
  • Grounds of appeal follow.
  • Date and signature.

Example:

“To: Tax and Customs Administration / Court … Dear …, I hereby object to / lodge an appeal against your assessment/decision with number [X] dated [date]. The grounds for this appeal will follow as soon as possible, but no later than within the period to be set by you. Date, signature.”

Deadline for justification

After the pro forma, the judge or inspector sets a deadline for submitting the full grounds:

  • Tax and Customs Administration: typically 6 weeks for substantiation of objection.
  • Administrative court: typically 4-6 weeks.
  • Extension possible for a good reason (1-2 times 2-4 weeks extra).

Submitting reasons too late: pro forma lapses — objection/appeal inadmissible. Important to record the time limit upon receipt.

When exactly is it NOT pro forma?

  • With full substantiation, feasible within the time limit — file a proper appeal immediately.
  • In case of doubt regarding the feasibility of the procedure — no additional work for an untenable appeal.
  • For simple matters — direct reasoning is often just as quick.

Pro forma is not a license to always postpone — only if the deadline unfolds differently.

In case of tax objection

Common uses:

  • Tax assessments are subject to a 6-week objection period.
  • In the case of a complex assessment (corporate income tax, international aspects): justification requires an auditor's review.
  • Submit the pro forma within 6 weeks.
  • Justification within the deadline set by the Tax and Customs Administration (typically 6 extra weeks).

Practical: companies with large tax assessments often use pro forma to gain time for substantiation.

Lars's pro forma

Lars's BV receives an unexpected corporate income tax assessment of €45,000. Deadline 6 weeks:

  • Week 1-2: accountant analyzes tax assessment.
  • Weeks 3-4: tax lawyer involved for strategy.
  • Week 5: submitted pro forma objection (1 page).
  • Week 6: deadline met.
  • Weeks 7-12: justification drafted and submitted.

Without a pro forma, Lars would have had to submit hasty justification — weaker substantiation and a lower chance of success.

Honest recommendation

Lawyer drafts pro forma

In the event of a tight timeframe for objection/appeal with complex substantiation: a pro forma is a sensible instrument. Mark your calendar with the deadline for submitting the substantiation upon receipt of the deadline setting from the judge or inspector. Ensure proper substantiation in the full substantiation — a pro forma merely serves to preserve the deadline; quality will follow. If in doubt whether the pro forma is justified: consult a lawyer.

For other topics: objection to the Tax and Customs Administration, interruption of the statute of limitations , and summary proceedings.

Frequently Asked Questions

What is a pro forma appeal?

Letter of appeal with minimal content to meet the deadline — full reasoning follows within a later period set by the judge/inspector. Practical when legal arguments still need to be elaborated.

What should it contain?

Name/address of the appellant, reference to the contested decision, declaration that an appeal is being lodged, “grounds to follow”, date and signature. Minimal formal requirements — no substantive arguments yet.

How long for justification?

Tax and Customs Administration typically 6 weeks for the substantiation of the objection. Administrative Court typically 4-6 weeks. Extension possible for good reason (1-2 times 2-4 extra weeks). Record the deadline upon receipt.

When is a pro forma NOT required?

With full substantiation feasible within the time limit — a direct, proper appeal is better. In case of doubt regarding the feasibility of the procedure. For simple cases — direct substantiation is often just as fast. Not for delaying “just because it is possible”.

What if the justification is submitted too late?

Objection/appeal inadmissible — assessment or decision stands. Irreversible. Therefore, set a deadline immediately after receipt of the notice of deadline. In case of imminent lateness: request an extension in a timely manner.

Pro forma at court?

Yes, the same principle applies in administrative law proceedings (taxation, administration). It is less common in civil law — there, a separate referral procedure applies for deferral.

Do I need a lawyer?

Not for pro forma purposes — a simple form. For substantive justification regarding complex subjects (Corporate Income Tax, GDPR, complex contracts): a legal expert or lawyer is highly recommended — the difference between winning and losing.

Please note: an article provides general information, but your legal situation may turn out differently.

A contract, conflict, or legal risk must always be assessed based on the facts, documents, evidentiary position, and interests. Are you in doubt? Have your situation assessed before you act.

Legal question regarding this article?

A blog provides explanation, but your situation often requires a concrete legal choice. MKB Juristen helps entrepreneurs with contracts, terms and conditions, GDPR documents, employment documents, disputes, and customized legal solutions.

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