There is a change, not directly to postmarking but the larger collection process which will affect postmarking.
> This discrepancy is expected to become more common due to the implementation of the "Regional Transportation Optimization" (RTO) initiative and the adoption of "leg-based" service standards.
> This change in USPS processes will have a potentially significant impact on tax filings.
Basically, a large chunk of mailboxes across the country will no longer have evening collection, so unless you drop off your mail very early in the morning it will be processed and postmarked at minimum 1+ day later.
> This discrepancy is expected to become more common due to the implementation of the "Regional Transportation Optimization" (RTO) initiative and the adoption of "leg-based" service standards.
> This change in USPS processes will have a potentially significant impact on tax filings.
Basically, a large chunk of mailboxes across the country will no longer have evening collection, so unless you drop off your mail very early in the morning it will be processed and postmarked at minimum 1+ day later.