What's the plural form of e-filing? Here's the word you're looking for.
Answer
The noun e-filing can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be e-filing.
However, in more specific contexts, the plural form can also be e-filings e.g. in reference to various types of e-filings
or a collection of e-filings.
Examples
Audience members felt that the eligibility requirements governing e-filing are onerous, outdated and lacked materiality.
Basic federal e-filing services, called Free File Fillable Forms, are also available regardless of income level.