This is a known issue that occasionally occurs on the Income Tax Portal, especially during system updates or high traffic. If XML/JSON files are downloadable but PDFs are not, it may be due to a temporary server-side error or browser compatibility issue.
You can try the following:
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Use Google Chrome or Microsoft Edge (updated version).
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Clear browser cache or try using Incognito/Private Mode.
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Avoid using mobile/tablet for downloads.
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Try downloading during non-peak hours (early morning/late night).
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If it still doesn’t work, wait for the portal to restore functionality, or raise a Grievance Ticket under the “Help” section.
Also, if you frequently prepare multiple 15CBs, consider using our Excel-based utility to generate and manage Form 15CA/15CB XML in bulk. This reduces dependency on the portal at every step.
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Bulk XML generation for 15CA & 15CB
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Supports all parts – A, B, C, D & CB
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Simple, editable Excel format
Download here: https://xltool.in/15ca-15cb/