diff --git a/src/OpenAC.Net.NFSe/Providers/Megasoft/ProviderMegasoft.cs b/src/OpenAC.Net.NFSe/Providers/Megasoft/ProviderMegasoft.cs
index c44425c..bb75b71 100644
--- a/src/OpenAC.Net.NFSe/Providers/Megasoft/ProviderMegasoft.cs
+++ b/src/OpenAC.Net.NFSe/Providers/Megasoft/ProviderMegasoft.cs
@@ -236,6 +236,7 @@ protected override XElement WriteServicosRps(NotaServico nota)
             nota.Servico.CodigoMunicipio));
         servico.AddChild(AddTag(TipoCampo.Str, "", "CodigoTributacaoMunicipio", 1, 20, Ocorrencia.NaoObrigatoria,
             nota.Servico.CodigoTributacaoMunicipio));
+        servico.AddChild(AddTag(TipoCampo.Str, "", "Exigibilidade", 1, 1, Ocorrencia.Obrigatoria, (int)nota.Servico.ExigibilidadeIss + 1));
         servico.AddChild(AddTag(TipoCampo.Str, "", "NumeroNbs", 1, 12, Ocorrencia.Obrigatoria,
             nota.Servico.CodigoNbs));
         servico.AddChild(AddTag(TipoCampo.Str, "", "Discriminacao", 1, 2000, Ocorrencia.Obrigatoria,