[{"data":1,"prerenderedAt":235},["ShallowReactive",2],{"page:\u002Fen\u002Fguides\u002Fkvk-number-branch-number-rsin":3},{"id":4,"title":5,"body":6,"description":227,"extension":228,"meta":229,"navigation":230,"path":231,"seo":232,"stem":233,"__hash__":234},"pages\u002Fen\u002Fguides\u002Fkvk-number-branch-number-rsin.md","KVK number, branch number and RSIN",{"type":7,"value":8,"toc":217},"minimark",[9,25],[10,11,13,20],"page-head",{"updated":12},"21 October 2026",[14,15,17],"template",{"v-slot:title":16},"",[18,19,5],"p",{},[14,21,22],{"v-slot:lead":16},[18,23,24],{},"Three numbers from the Dutch Business Register, and when to store which.",[26,27,28,33,108,111,114,117,120,123,126,129,132,135,146,150,173,177,180,189,192,200,204],"article-body",{},[29,30,32],"h2",{"id":31},"the-three-side-by-side","The three side by side",[34,35,36,55],"table",{},[37,38,39],"thead",{},[40,41,42,46,49,52],"tr",{},[43,44,45],"th",{},"Number",[43,47,48],{},"Digits",[43,50,51],{},"Belongs to",[43,53,54],{},"Example",[56,57,58,76,92],"tbody",{},[40,59,60,64,67,70],{},[61,62,63],"td",{},"KVK number",[61,65,66],{},"8",[61,68,69],{},"the business or legal entity",[61,71,72],{},[73,74,75],"code",{},"00000002",[40,77,78,81,84,87],{},[61,79,80],{},"Branch number",[61,82,83],{},"12",[61,85,86],{},"one branch",[61,88,89],{},[73,90,91],{},"000000000002",[40,93,94,97,100,103],{},[61,95,96],{},"RSIN",[61,98,99],{},"9",[61,101,102],{},"a legal entity or partnership",[61,104,105],{},[73,106,107],{},"000000002",[18,109,110],{},"The examples are fictional.",[29,112,63],{"id":113},"kvk-number",[18,115,116],{},"A business or legal entity gets a KVK number (KVK-nummer) when it registers in the Business Register (Handelsregister) of the KVK, the Netherlands Chamber of Commerce. The number stays the same when the company moves or changes its name.",[18,118,119],{},"If the legal form changes, the number can change. When a sole proprietorship (eenmanszaak) becomes a bv, the private limited company, the bv is a new legal entity, with a new KVK number.",[29,121,80],{"id":122},"branch-number",[18,124,125],{},"A branch (vestiging) is an address where the company works. A company with three shops has one KVK number and three branch numbers (vestigingsnummers): one for the main branch and two for the other shops.",[18,127,128],{},"A legal entity without a business, such as a foundation (stichting) that sells nothing, has no branch and so no branch number.",[29,130,96],{"id":131},"rsin",[18,133,134],{},"The RSIN (Rechtspersonen en Samenwerkingsverbanden Informatienummer, the information number for legal entities and partnerships) belongs to a bv, nv, foundation or association, and to a partnership such as a vof. A sole proprietorship has none.",[18,136,137,138,141,142,145],{},"The Dutch Tax Administration (Belastingdienst) uses the RSIN as a tax number. The VAT number of a bv is based on it: ",[73,139,140],{},"NL",", the RSIN, and a ",[73,143,144],{},"B"," with two digits.",[29,147,149],{"id":148},"which-number-to-store","Which number to store",[151,152,153,161,167],"ul",{},[154,155,156,160],"li",{},[157,158,159],"strong",{},"The KVK number",", as the key for the company. It is the number most systems run on.",[154,162,163,166],{},[157,164,165],{},"The branch number"," as well if you work per location, for example with shops or franchisees.",[154,168,169,172],{},[157,170,171],{},"The RSIN"," only if you need it for tax or legal documents.",[29,174,176],{"id":175},"storing-a-kvk-number","Storing a KVK number",[18,178,179],{},"Store it as text of eight characters, not as a number. A number drops a leading zero, and then the value no longer fits.",[181,182,187],"pre",{"className":183,"code":185,"language":186,"meta":16},[184],"language-sql","kvk_number char(8) not null\n","sql",[73,188,185],{"__ignoreMap":16},[18,190,191],{},"Remove spaces and dots before you store it, then check that exactly eight digits are left:",[181,193,198],{"className":194,"code":196,"language":197,"meta":16},[195],"language-js","const kvkNumber = input.replace(\u002F[\\s.]\u002Fg, '')\nconst valid = \u002F^\\d{8}$\u002F.test(kvkNumber)\n","js",[73,199,196],{"__ignoreMap":16},[29,201,203],{"id":202},"at-achtcijfers","At Achtcijfers",[18,205,206,207,210,211,216],{},"The KVK number is the key of the API: ",[73,208,209],{},"GET \u002Fv1\u002Fcompanies\u002F{kvk_number}",". What comes back per company is on ",[212,213,215],"a",{"href":214},"\u002Fen\u002Ffields","Fields",".",{"title":16,"searchDepth":218,"depth":218,"links":219},2,[220,221,222,223,224,225,226],{"id":31,"depth":218,"text":32},{"id":113,"depth":218,"text":63},{"id":122,"depth":218,"text":80},{"id":131,"depth":218,"text":96},{"id":148,"depth":218,"text":149},{"id":175,"depth":218,"text":176},{"id":202,"depth":218,"text":203},"Three numbers from the Dutch Business Register, and when to store which. Plus how to store a KVK number without losing digits.","md",{},true,"\u002Fen\u002Fguides\u002Fkvk-number-branch-number-rsin",{"title":5,"description":227},"en\u002Fguides\u002Fkvk-number-branch-number-rsin","irIATxUvGiEKLYE4Es39STdnM-A8qdFcgqLfbbR2w5o",1793465541372]