年ねん収しゅうの壁かべ

noun

annual income threshold (affecting taxes or social insurance)

Refers to a specific income level where tax or social insurance burdens increase, often discussed in the context of part-time workers adjusting hours to stay below the threshold.

• パートで働はたらく主しゅ婦ふは、年ねん収しゅうの壁かべを超こえないように勤きん務む時じ間かんを調ちょう整せいしている。

  Housewives working part-time adjust their working hours so as not to exceed the annual income threshold.

• 年ねん収しゅうの壁かべが引ひき上あげられれば、もっと働はたらける人ひとが増ふえるだろう。

  If the annual income threshold is raised, more people will be able to work more.