Priority Date Wait Estimator accuracy and testing

Formula source

• Priority gap months = max(0, months between entered cutoff date and priority date). Bulletin wait = priority gap months / (assumed advancement months per year / 12). Total wait = bulletin wait + document prep + interview backlog + retrogression buffer.

Test cases

Known limitations

• This tool does not determine visa availability, eligibility, chargeability, filing chart selection, petition validity, child age protection, or interview scheduling.

Assumptions

• The current cutoff date and movement rate are user-entered and not fetched from any bulletin.
• Future movement is modeled as a simple average and does not predict retrogression or pauses.
• This planning estimate runs locally in your browser from the values you enter. It is not legal advice, not an official government fee or timeline, and not a document or photo acceptance determination.

Unit handling

• Priority Date accepts calendar dates.
• Current Cutoff Date accepts calendar dates.
• As-Of Date accepts calendar dates.
• Assumed Cutoff Advancement accepts values in mo/yr.
• Document Prep Time accepts values in mo.
• Interview / Agency Backlog accepts values in mo.
• Retrogression / Uncertainty Buffer accepts values in mo.

Rounding rules

• Number displays use up to 2 decimal places in the calculator UI.
• Input precision follows configured step values where provided.

Version history

Change log