{"id":14500,"date":"2026-10-20T10:00:40","date_gmt":"2026-10-20T13:00:40","guid":{"rendered":"https:\/\/nfe.io\/blog\/?p=14500"},"modified":"2026-10-19T09:16:52","modified_gmt":"2026-10-19T12:16:52","slug":"webiss-o-que-e-essa-plataforma","status":"publish","type":"post","link":"https:\/\/nfe.io\/blog\/saas\/webiss-o-que-e-essa-plataforma\/","title":{"rendered":"Webis (WebISS): o que \u00e9 essa plataforma e onde ela \u00e9 usada hoje"},"content":{"rendered":"<blockquote><p><em><span style=\"font-weight: 400;\">&#8220;Webis&#8221; \u00e9 a grafia com que muitos buscam o WebISS\u00ae, sistema web de gest\u00e3o do ISSQN e emiss\u00e3o de NFS-e usado por prefeituras como Passos (MG), Queimados (RJ) e Campina Grande (PB). A Megadata declara oper\u00e1-lo em mais de 80 munic\u00edpios. Para quem desenvolve software, \u00e9 mais um padr\u00e3o municipal de NFS-e a integrar.<\/span><\/em><\/p><\/blockquote>\n<p><span style=\"font-weight: 400;\">Cada prefeitura escolhe o pr\u00f3prio sistema de NFS-e, e quem emite em v\u00e1rios munic\u00edpios lida com layouts e credenciais diferentes. O WebISS\u00ae \u00e9 um desses sistemas. (Webis tamb\u00e9m \u00e9 um <\/span><a href=\"https:\/\/webis.de\/\"><span style=\"font-weight: 400;\">grupo de pesquisa alem\u00e3o<\/span><\/a><span style=\"font-weight: 400;\"> em IA, sem rela\u00e7\u00e3o com notas fiscais.)<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">O que \u00e9 o WebISS?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">O WebISS\u00ae \u00e9 um sistema web de gest\u00e3o do Imposto Sobre Servi\u00e7os de Qualquer Natureza (ISSQN) usado por prefeituras para emitir e controlar a NFS-e, cadastrar contribuintes e receber declara\u00e7\u00f5es fiscais. Cada munic\u00edpio tem um portal pr\u00f3prio no formato <\/span><span style=\"font-weight: 400;\">&lt;cidade&gt;&lt;uf&gt;.webiss.com.br<\/span><span style=\"font-weight: 400;\">, e a comunica\u00e7\u00e3o com sistemas externos pode ocorrer por arquivos de lote ou por Web Services, segundo a <\/span><a href=\"https:\/\/megadata.com.br\/webiss.html\"><span style=\"font-weight: 400;\">Megadata<\/span><\/a><span style=\"font-weight: 400;\">. Em sistemas de emiss\u00e3o, a integra\u00e7\u00e3o costuma ser identificada como &#8220;padr\u00e3o WebISS 2&#8221;.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Quem mant\u00e9m o WebISS<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">A <\/span><a href=\"https:\/\/megadata.com.br\/webiss.html\"><span style=\"font-weight: 400;\">Megadata<\/span><\/a><span style=\"font-weight: 400;\"> declara operar o WebISS\u00ae &#8220;para mais de 80 munic\u00edpios&#8221; (sem data). Uma <\/span><a href=\"http:\/\/www2.ibam.org.br\/webiss\/webiss.html\"><span style=\"font-weight: 400;\">p\u00e1gina do IBAM<\/span><\/a><span style=\"font-weight: 400;\"> o associa \u00e0 metodologia de gest\u00e3o do ISSQN do instituto. A rela\u00e7\u00e3o entre as duas institui\u00e7\u00f5es n\u00e3o \u00e9 detalhada publicamente.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Base legal<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">O ISSQN segue a <\/span><a href=\"https:\/\/www.planalto.gov.br\/ccivil_03\/leis\/lcp\/lcp116.htm\"><span style=\"font-weight: 400;\">LC n\u00ba 116\/2003<\/span><\/a><span style=\"font-weight: 400;\">; cada munic\u00edpio regulamenta a NFS-e por norma pr\u00f3pria. A <\/span><a href=\"https:\/\/www.planalto.gov.br\/ccivil_03\/leis\/lcp\/lcp214.htm\"><span style=\"font-weight: 400;\">LC n\u00ba 214\/2025<\/span><\/a><span style=\"font-weight: 400;\"> criou o IBS e a CBS, que substituir\u00e3o o ISSQN.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Onde o WebISS \u00e9 usado hoje?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">N\u00e3o h\u00e1 lista oficial p\u00fablica. O uso foi confirmado em fontes oficiais, em 10\/10\/2026, nestes munic\u00edpios:<\/span><\/p>\n<table>\n<thead>\n<tr>\n<th><b>Munic\u00edpio<\/b><\/th>\n<th><b>UF<\/b><\/th>\n<th><b>Portal do WebISS<\/b><\/th>\n<th><b>Fonte<\/b><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Passos<\/span><\/td>\n<td><span style=\"font-weight: 400;\">MG<\/span><\/td>\n<td><a href=\"https:\/\/passosmg.webiss.com.br\/\"><span style=\"font-weight: 400;\">passosmg.webiss.com.br<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Portal do munic\u00edpio<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Queimados<\/span><\/td>\n<td><span style=\"font-weight: 400;\">RJ<\/span><\/td>\n<td><a href=\"https:\/\/queimadosrj.webiss.com.br\/\"><span style=\"font-weight: 400;\">queimadosrj.webiss.com.br<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Portal do munic\u00edpio<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Campina Grande<\/span><\/td>\n<td><span style=\"font-weight: 400;\">PB<\/span><\/td>\n<td><a href=\"https:\/\/campinagrandepb.webiss.com.br\/\"><span style=\"font-weight: 400;\">campinagrandepb.webiss.com.br<\/span><\/a><\/td>\n<td><a href=\"https:\/\/campinagrande.pb.gov.br\/nota-fiscal-eletronica\/\"><span style=\"font-weight: 400;\">Prefeitura de Campina Grande<\/span><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span style=\"font-weight: 400;\">Como descobrir se a sua cidade usa WebISS<\/span><\/h3>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Testar <\/span><span style=\"font-weight: 400;\">https:\/\/&lt;cidade&gt;&lt;uf&gt;.webiss.com.br<\/span><span style=\"font-weight: 400;\">: se abrir o acesso com o nome do munic\u00edpio, a cidade usa o sistema.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Consultar a se\u00e7\u00e3o de NFS-e do portal da prefeitura.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ver a <\/span><a href=\"https:\/\/nfe.io\/docs\/prefeituras-integradas\/\"><span style=\"font-weight: 400;\">lista de prefeituras integradas da NFE.io<\/span><\/a><span style=\"font-weight: 400;\">, que mostra o status de habilita\u00e7\u00e3o por munic\u00edpio.<\/span><\/li>\n<\/ol>\n<h2><span style=\"font-weight: 400;\">Como funciona a emiss\u00e3o de NFS-e no WebISS?<\/span><\/h2>\n<h3><span style=\"font-weight: 400;\">Cadastro<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">S\u00e3o exigidos inscri\u00e7\u00e3o municipal, usu\u00e1rio (CPF e senha) e o CeC\u00ae (Cadastro Eletr\u00f4nico do Contribuinte) aprovado; o contador, se houver, deve ser aprovado antes, segundo o <\/span><a href=\"https:\/\/apresentacao.webiss.com.br\/\"><span style=\"font-weight: 400;\">portal de demonstra\u00e7\u00e3o<\/span><\/a><span style=\"font-weight: 400;\">. Em Campina Grande, a aprova\u00e7\u00e3o ocorre &#8220;normalmente em at\u00e9 5 dias \u00fateis&#8221;, informa a <\/span><a href=\"https:\/\/campinagrande.pb.gov.br\/nota-fiscal-eletronica\/\"><span style=\"font-weight: 400;\">prefeitura<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Portal, RPS ou webservice<\/span><\/h3>\n<table>\n<thead>\n<tr>\n<th><b>Caminho<\/b><\/th>\n<th><b>Como funciona<\/b><\/th>\n<th><b>Indicado para<\/b><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Portal<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Nota preenchida no navegador<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Baixo volume<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">RPS<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Recibo com numera\u00e7\u00e3o sequencial convertido em NFS-e no prazo municipal<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Conting\u00eancia<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Webservice<\/span><\/td>\n<td><span style=\"font-weight: 400;\">XML assinado enviado pelo sistema do prestador<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ERPs e SaaS<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">O cancelamento segue as regras de cada munic\u00edpio. Em alguns deles, se a nota for emitida sem o e-mail do tomador, o cancelamento pode exigir requerimento \u00e0 prefeitura.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">O que muda no WebISS com a NFS-e Nacional e a Reforma Tribut\u00e1ria?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">O munic\u00edpio pode usar apenas o Ambiente de Dados Nacional (ADN), mantendo o sistema pr\u00f3prio, conforme a <\/span><a href=\"https:\/\/www.gov.br\/nfse\/pt-br\/municipios\/produtos-disponiveis\"><span style=\"font-weight: 400;\">p\u00e1gina do Sistema Nacional da NFS-e<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Envio ao ADN<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Queimados (RJ) publicou no <\/span><a href=\"https:\/\/queimadosrj.webiss.com.br\/\"><span style=\"font-weight: 400;\">portal do WebISS<\/span><\/a><span style=\"font-weight: 400;\"> que concluiu as adequa\u00e7\u00f5es \u00e0 LC n\u00ba 214\/2025 e o &#8220;envio obrigat\u00f3rio de dados ao Ambiente de Dados Nacional (ADN) a partir de janeiro\/2026&#8221;.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">IBS e CBS no XML<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Quem usa webservice precisa revalidar o XML com os XSDs novos. Na API da NFE.io, a reforma adiciona o grupo <\/span><span style=\"font-weight: 400;\">ibsCbs<\/span><span style=\"font-weight: 400;\"> e o campo <\/span><span style=\"font-weight: 400;\">nbsCode<\/span><span style=\"font-weight: 400;\">, conforme a <\/span><a href=\"https:\/\/nfe.io\/docs\/documentacao\/reforma-tributaria\/conceitos-funcionais\/nota-fiscal-de-servico\/mudancas-layout-integracao-nfse-v4\/\"><span style=\"font-weight: 400;\">documenta\u00e7\u00e3o de layout da NFS-e<\/span><\/a><span style=\"font-weight: 400;\">. Mais detalhes no post sobre o <\/span><a href=\"https:\/\/nfe.io\/blog\/reforma-tributaria\/ambiente-nacional-nfs-nfe-io\/\"><span style=\"font-weight: 400;\">Ambiente Nacional da NFS-e<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Como integrar o WebISS a um ERP ou SaaS?<\/span><\/h2>\n<h3><span style=\"font-weight: 400;\">Desafios t\u00e9cnicos<\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">O webservice exige XML assinado; na NFE.io, a produ\u00e7\u00e3o exige certificado A1.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Algumas prefeituras exigem tamb\u00e9m o login e a senha do portal.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A numera\u00e7\u00e3o de RPS precisa ser controlada para evitar duplicidade.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Veja tamb\u00e9m <\/span><a href=\"https:\/\/nfe.io\/blog\/integracao\/api-de-nfs-e-o-desafio-de-emitir-notas-em-diferentes-prefeituras-e-como-resolver\/\"><span style=\"font-weight: 400;\">como emitir NFS-e em diferentes prefeituras<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Exemplo com API \u00fanica<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">O ERP envia um JSON, e a API o converte para o layout municipal, conforme os <\/span><a href=\"https:\/\/nfe.io\/docs\/documentacao\/nota-fiscal-servico-eletronica\/primeiros-passos\/\"><span style=\"font-weight: 400;\">primeiros passos da NFS-e<\/span><\/a><span style=\"font-weight: 400;\">:<\/span><\/p>\n<p><span style=\"font-weight: 400;\">curl -X POST &#8220;https:\/\/api.nfe.io\/v1\/companies\/{companyId}\/serviceinvoices&#8221; \\<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0-H &#8220;Authorization: SUA_API_KEY&#8221; \\<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0-H &#8220;Content-Type: application\/json&#8221; \\<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0-d &#8216;{<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0&#8220;borrower&#8221;: {<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&#8220;type&#8221;: &#8220;LegalEntity&#8221;,<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0&#8220;name&#8221;: &#8220;Cliente Exemplo&#8221;,<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&#8220;federalTaxNumber&#8221;: &#8220;12345678000199&#8221;,<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&#8220;email&#8221;: &#8220;cliente@exemplo.com&#8221;<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0},<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0&#8220;cityServiceCode&#8221;: &#8220;0101&#8221;,<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0&#8220;description&#8221;: &#8220;Consultoria em tecnologia&#8221;,<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0&#8220;servicesAmount&#8221;: 1000.00<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0}&#8217;<\/span><\/p>\n<p><span style=\"font-weight: 400;\">O status final chega por consulta ou webhook. Prestadores com CNPJ alfanum\u00e9rico devem usar a <\/span><a href=\"https:\/\/nfe.io\/docs\/documentacao\/nossa-plataforma\/migracao-emissao-v2-para-v3\/\"><span style=\"font-weight: 400;\">API v3<\/span><\/a><span style=\"font-weight: 400;\">. Antes da produ\u00e7\u00e3o, vale testar no <\/span><a href=\"https:\/\/nfe.io\/blog\/nota-fiscal\/api-de-nota-fiscal-ambiente-de-homologacao\/\"><span style=\"font-weight: 400;\">ambiente de homologa\u00e7\u00e3o<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Emita NFS-e em prefeituras com WebISS pela API da NFE.io<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">A NFE.io \u00e9 a infraestrutura fiscal para escalar o faturamento sem d\u00e9bito t\u00e9cnico. Confira a habilita\u00e7\u00e3o de cada munic\u00edpio na lista de prefeituras integradas.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Endpoints RESTful com contratos JSON, sem SOAP:<\/b><span style=\"font-weight: 400;\"> o mesmo payload serve para diferentes prefeituras.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Valida\u00e7\u00e3o pr\u00e9via pelo motor fiscal:<\/b><span style=\"font-weight: 400;\"> reduz as rejei\u00e7\u00f5es nas prefeituras.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Webhooks em tempo real:<\/b><span style=\"font-weight: 400;\"> o ERP recebe o status da nota sem consultas repetidas.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Guarda legal e acesso aos XMLs:<\/b><span style=\"font-weight: 400;\"> o contribuinte deve conservar os documentos fiscais (<\/span><a href=\"https:\/\/www.planalto.gov.br\/ccivil_03\/leis\/l5172compilado.htm\"><span style=\"font-weight: 400;\">art. 195, par\u00e1grafo \u00fanico, c\/c art. 174 do CTN<\/span><\/a><span style=\"font-weight: 400;\">); a API d\u00e1 acesso ao XML e ao PDF de cada NFS-e emitida.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Sandbox\/homologa\u00e7\u00e3o:<\/b><span style=\"font-weight: 400;\"> a NFE.io simula a prefeitura para testes sem validade fiscal.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Veja os <\/span><a href=\"https:\/\/nfe.io\/precos\/emissao-nfse\/\"><span style=\"font-weight: 400;\">planos de emiss\u00e3o de NFS-e<\/span><\/a><span style=\"font-weight: 400;\"> e a <\/span><a href=\"https:\/\/nfe.io\/docs\/documentacao\/nota-fiscal-servico-eletronica\/\"><span style=\"font-weight: 400;\">documenta\u00e7\u00e3o da API<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Perguntas frequentes sobre o WebISS<\/span><\/h2>\n<h3><span style=\"font-weight: 400;\">Webis e WebISS s\u00e3o a mesma coisa?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">No contexto de nota fiscal, sim: &#8220;webis&#8221; \u00e9 como muitos buscam o WebISS\u00ae.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Quem desenvolve o WebISS?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">A Megadata declara operar o WebISS\u00ae em mais de 80 munic\u00edpios; p\u00e1ginas do IBAM associam o sistema \u00e0 metodologia de gest\u00e3o do ISSQN do instituto.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">O WebISS envia notas ao Ambiente de Dados Nacional?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Em Queimados (RJ), sim, desde janeiro de 2026, segundo comunicado no portal do munic\u00edpio. Nos demais munic\u00edpios, \u00e9 preciso conferir no portal da prefeitura.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">D\u00e1 para emitir NFS-e WebISS por API REST\/JSON?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Sim, por meio de uma API intermedi\u00e1ria como a da NFE.io, conferindo antes a habilita\u00e7\u00e3o da cidade.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;Webis&#8221; \u00e9 a grafia com que muitos buscam o WebISS\u00ae, sistema web de gest\u00e3o do ISSQN e emiss\u00e3o de NFS-e usado por prefeituras&#8230;<\/p>\n","protected":false},"author":35,"featured_media":12638,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8],"tags":[],"class_list":["post-14500","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-saas"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - 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