[#MempoolAcceptResult-m_effective_feerate]
= xref:MempoolAcceptResult.adoc[MempoolAcceptResult]::m&lowbar;effective&lowbar;feerate
:relfileprefix: ../
:mrdocs:

The feerate at which this transaction was considered&period; This includes any fee delta added using prioritisetransaction (i&period;e&period; modified fees)&period; If this transaction was submitted as a package, this is the package feerate, which may also include its descendants and&sol;or ancestors (see m&lowbar;wtxids&lowbar;fee&lowbar;calculations below)&period;

== Synopsis

Declared in `&lt;validation&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::optional&lt;CFeeRate&gt; const m&lowbar;effective&lowbar;feerate;
----


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