Plastic　packaging　waste　(PPW)　can　be　considered　as　solid　waste　with　harmful　effects　on　the　environment　or　as　a　material　with　recycling　potential　in　terms　of　sustainable　development　in　a　circular　economy.　Knowing　the　amount　of　PPW　generated　is　very　important　as　it　is　related　to　the　availability　of　this　material　for　recycling　and　determines　the　actual　recycling　rate　(denominator　of　a　fraction).　PPW　is　very　heterogeneous　and　contains　a　certain　number　of　impurities　(e.g.,　product　residues,　direct　printing,　glue,　labels,　plastic　sleeves,　cap,　etc.).　According　to　EU　law,　an　annual　report　(for　the　data　in　2021)　on　the　masses　of　both　the　PPW　actually　recycled　(PPWR)　(“targeted　materials”)　and　impurities　(“non-targeted　materials”)　must　be　prepared　and　submitted　to　the　European　Commission.　The　PPWR　is　used　for　the　calculation　of　the　recycling　rate　(the　numerator　in　a　fraction).　The　impurities　should　be　considered　for　the　calculation　of　own　resources　(national　contributions　to　the　general　EU　budget　based　on　the　uniform　call　rate　of　0.80/kg　of　non-recycled　PPW).　To　date,　the　Council　of　the　EU　has　not　proposed　a　method　for　calculating　these　amounts,　so　they　have　only　been　estimated.　The　present　study　(the　first　of　its　kind　in　Poland)　aimed　to　estimate　the　number　of　impurities　in　PPW　and　the　actual　amount　of　PPWR　at　the　calculation　point　using　a　method　accepted　by　the　EU.　In　the　installations,　PPW　(plastic　packaging　(15　01　02),　multi-material　packaging　(15　01　05)　and　mixed　packaging　waste　(15　01　06))　is　recycled　together　with　other　plastic　waste　(plastic　(16　01　19),　plastic　(17　02　03),　plastic　and　rubber　(19　12　04),　and　plastics　(20　01　39)).　It　was　assumed　that　the　proportions　of　the　mass　of　individual　types　of　PPW　in　the　total　mass　of　plastic　waste　processed　in　the　installation　were　proportional　to　the　mass　of　impurities　in　these　individual　types　of　PPW.　It　was　found　that　the　average　percentage　of　impurities　in　PPW　was　4.40–6.90%,　which　seems　to　be　relatively　low.　However,　this　means　that,　when　calculating　the　PPWR,　the　mass　of　impurities　should　be　subtracted　from　the　mass　of　PPW　entering　the　recycling　process.　As　a　result,　the　mass　of　PPWR　at　the　calculation　point　in　2021　in　Poland　was　almost　30,000　tonnes　lower　than　the　original　mass　entering　the　installation.　Thus,　applying　the　uniform　call　rate　to　the　weight　of　impurities　in　the　PPW　increases　Poland’s　own　resources　by　approx.　24　million　euros.　©　2024　by　the　authors.